MPC observations statistics

Please note, that you see here only the Top 15 of all objects, so the sum for all stations at end is higher.

SATOBS - Observations of natural satellites

Sorted by number of observations

Click at right image for a histogram of the top 15 values.
Number of observations of top 15 stations at Minor Planet Center for SATOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 568 5271 217 24.29 1984 – 2023 40 Maunakea
2 415 2035 15 135.67 2004 – 2010 7 Kambah
3 T08 1975 11 179.55 2017 – 2022 6 ATLAS-MLO, Mauna Loa
4 T05 1798 10 179.80 2016 – 2022 7 ATLAS-HKO, Haleakala
5 704 1662 9 184.67 1998 – 2013 16 Lincoln Laboratory ETS, New Mexico
6 689 1305 8 163.13 1958 – 2012 55 U.S. Naval Observatory, Flagstaff
7 G36 915 11 83.18 2011 – 2018 8 Calar Alto-CASADO
8 691 662 15 44.13 1992 – 2021 30 Steward Observatory, Kitt Peak-Spacewatch
9 W84 611 35 17.46 2013 – 2022 10 Cerro Tololo-DECam
10 711 584 10 58.40 1942 – 1995 54 McDonald Observatory, Fort Davis
11 F51 578 22 26.27 2011 – 2022 12 Pan-STARRS 1, Haleakala
12 304 574 68 8.44 2002 – 2023 22 Las Campanas Observatory
13 E07 558 17 32.82 2011 – 2015 5 Murrumbateman
14 T14 558 88 6.34 2003 – 2023 21 Canada-France-Hawaii Telescope, Maunakea
15 D29 500 12 41.67 2007 – 2022 16 Purple Mountain Observatory, XuYi Station
Sum 158 28185 229 123.08 1894 – 2023 130 158 names

SATOBS - Observations of natural satellites

Sorted by number of observed objects

Click at right image for a histogram of the top 15 values.
Number of objects of top 15 stations at Minor Planet Center for SATOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 568 5271 217 24.29 1984 – 2023 40 Maunakea
2 T14 558 88 6.34 2003 – 2023 21 Canada-France-Hawaii Telescope, Maunakea
3 807 470 83 5.66 1998 – 2022 25 Cerro Tololo Observatory, La Serena
4 304 574 68 8.44 2002 – 2023 22 Las Campanas Observatory
5 675 444 46 9.65 1974 – 2011 38 Palomar Mountain
6 W84 611 35 17.46 2013 – 2022 10 Cerro Tololo-DECam
7 695 157 29 5.41 1969 – 2014 46 Kitt Peak
8 809 180 22 8.18 1981 – 2013 33 European Southern Observatory, La Silla
9 F51 578 22 26.27 2011 – 2022 12 Pan-STARRS 1, Haleakala
10 309 136 21 6.48 2000 – 2022 23 Cerro Paranal
11 950 78 19 4.11 1997 – 2011 15 La Palma
12 E07 558 17 32.82 2011 – 2015 5 Murrumbateman
13 G96 374 17 22.00 2005 – 2022 18 Mt. Lemmon Survey
14 415 2035 15 135.67 2004 – 2010 7 Kambah
15 691 662 15 44.13 1992 – 2021 30 Steward Observatory, Kitt Peak-Spacewatch
Sum 158 28185 229 123.08 1894 – 2023 130 158 names

SATOBS - Observations of natural satellites

Sorted by observations per object

Click at right image for a histogram of the top 15 values.
Part of observations per object of top 15 stations at Minor Planet Center for SATOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 G80 217 1 217.00 2015 – 2015 1 Sierra Remote Observatories, Auberry
2 286 210 1 210.00 2003 – 2005 3 Yunnan Observatory
3 704 1662 9 184.67 1998 – 2013 16 Lincoln Laboratory ETS, New Mexico
4 T05 1798 10 179.80 2016 – 2022 7 ATLAS-HKO, Haleakala
5 T08 1975 11 179.55 2017 – 2022 6 ATLAS-MLO, Mauna Loa
6 689 1305 8 163.13 1958 – 2012 55 U.S. Naval Observatory, Flagstaff
7 415 2035 15 135.67 2004 – 2010 7 Kambah
8 337 115 1 115.00 2003 – 2004 2 Sheshan, formerly Zo-Se
9 511 170 2 85.00 1998 – 1999 2 Haute Provence
10 G36 915 11 83.18 2011 – 2018 8 Calar Alto-CASADO
11 662 313 5 62.60 1904 – 1969 66 Lick Observatory, Mount Hamilton
12 G45 426 7 60.86 2014 – 2016 3 Space Surveillance Telescope, Atom Site
13 711 584 10 58.40 1942 – 1995 54 McDonald Observatory, Fort Davis
14 673 457 9 50.78 1968 – 2017 50 Table Mountain Observatory, Wrightwood
15 874 433 9 48.11 1993 – 1999 7 Observatorio do Pico dos Dias, Itajuba
Sum 158 28185 229 123.08 1894 – 2023 130 158 names

SATOBS - Observations of natural satellites

Sorted by first year of observation

Click at right image for a histogram of the top 15 values.
First year of observation of top 15 stations at Minor Planet Center for SATOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 802 1 1 1.00 1894 – 1894 1 Harvard Observatory, Cambridge
2 800 16 2 8.00 1898 – 1899 2 Harvard Observatory, Arequipa
3 662 313 5 62.60 1904 – 1969 66 Lick Observatory, Mount Hamilton
4 754 75 4 18.75 1904 – 1955 52 Yerkes Observatory, Williams Bay
5 786 47 1 47.00 1905 – 1927 23 U.S. Naval Obs., Washington (since 1893)
6 000 181 4 45.25 1906 – 1910 5 Greenwich
7 024 14 3 4.67 1908 – 1909 2 Heidelberg-Konigstuhl
8 087 22 1 22.00 1911 – 1911 1 Helwan
9 672 199 8 24.88 1916 – 1951 36 Mount Wilson
10 094 1 1 1.00 1929 – 1929 1 Crimea-Simeiz
11 690 23 3 7.67 1929 – 1981 53 Lowell Observatory, Flagstaff
12 078 1 1 1.00 1935 – 1935 1 Johannesburg
13 822 17 2 8.50 1939 – 1952 14 Cordoba
14 711 584 10 58.40 1942 – 1995 54 McDonald Observatory, Fort Davis
15 074 8 1 8.00 1957 – 1957 1 Boyden Observatory, Bloemfontein
Sum 158 28185 229 123.08 1894 – 2023 130 158 names

SATOBS - Observations of natural satellites

Sorted by years span of observations

Click at right image for a histogram of the top 15 values.
Year range of observations of top 15 stations at Minor Planet Center for SATOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 662 313 5 62.60 1904 – 1969 66 Lick Observatory, Mount Hamilton
2 689 1305 8 163.13 1958 – 2012 55 U.S. Naval Observatory, Flagstaff
3 711 584 10 58.40 1942 – 1995 54 McDonald Observatory, Fort Davis
4 690 23 3 7.67 1929 – 1981 53 Lowell Observatory, Flagstaff
5 754 75 4 18.75 1904 – 1955 52 Yerkes Observatory, Williams Bay
6 673 457 9 50.78 1968 – 2017 50 Table Mountain Observatory, Wrightwood
7 695 157 29 5.41 1969 – 2014 46 Kitt Peak
8 568 5271 217 24.29 1984 – 2023 40 Maunakea
9 675 444 46 9.65 1974 – 2011 38 Palomar Mountain
10 688 11 6 1.83 1982 – 2017 36 Lowell Observatory, Anderson Mesa Station
11 672 199 8 24.88 1916 – 1951 36 Mount Wilson
12 693 25 6 4.17 1967 – 2000 34 Catalina Station, Tucson
13 809 180 22 8.18 1981 – 2013 33 European Southern Observatory, La Silla
14 691 662 15 44.13 1992 – 2021 30 Steward Observatory, Kitt Peak-Spacewatch
15 807 470 83 5.66 1998 – 2022 25 Cerro Tololo Observatory, La Serena
Sum 158 28185 229 123.08 1894 – 2023 130 158 names

ARTSAT - Observations of artifical satellites

Sorted by number of observations

Click at right image for a histogram of the top 15 values.
Number of observations of top 15 stations at Minor Planet Center for ARTSAT class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 C40 9626 2 4813.00 2012 – 2017 6 Kuban State University Astrophysical Observatory
2 H06 4740 16 296.25 2005 – 2018 14 iTelescope Observatory, Mayhill
3 Y00 2484 121 20.53 2014 – 2018 5 SONEAR Observatory, Oliveira
4 703 2194 60 36.57 2003 – 2018 16 Catalina Sky Survey
5 Q62 1662 9 184.67 2013 – 2018 6 iTelescope Observatory, Siding Spring
6 J95 1485 45 33.00 2002 – 2018 17 Great Shefford
7 G45 1271 1 1271.00 2015 – 2015 1 Space Surveillance Telescope, Atom Site
8 G96 971 47 20.66 2005 – 2018 14 Mt. Lemmon Survey
9 C41 823 2 411.50 2014 – 2015 2 MASTER-II Observatory, Kislovodsk
10 J75 793 13 61.00 2007 – 2013 7 OAM Observatory, La Sagra
11 E12 552 28 19.71 2004 – 2012 9 Siding Spring Survey
12 510 462 2 231.00 2011 – 2015 5 Siegen
13 Z66 363 2 181.50 2015 – 2018 4 DeSS Deimos Sky Survey, Niefla Mountain
14 620 276 4 69.00 2002 – 2008 7 Observatorio Astronomico de Mallorca
15 C95 266 7 38.00 2013 – 2018 6 SATINO Remote Observatory, Haute Provence
Sum 195 34172 199 171.72 2000 – 2018 19 195 names

ARTSAT - Observations of artifical satellites

Sorted by number of observed objects

Click at right image for a histogram of the top 15 values.
Number of objects of top 15 stations at Minor Planet Center for ARTSAT class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 Y00 2484 121 20.53 2014 – 2018 5 SONEAR Observatory, Oliveira
2 703 2194 60 36.57 2003 – 2018 16 Catalina Sky Survey
3 G96 971 47 20.66 2005 – 2018 14 Mt. Lemmon Survey
4 J95 1485 45 33.00 2002 – 2018 17 Great Shefford
5 E12 552 28 19.71 2004 – 2012 9 Siding Spring Survey
6 H01 200 19 10.53 2007 – 2018 12 Magdalena Ridge Observatory, Socorro
7 F51 262 17 15.41 2010 – 2018 9 Pan-STARRS 1, Haleakala
8 204 131 17 7.71 2006 – 2018 13 Schiaparelli Observatory
9 H06 4740 16 296.25 2005 – 2018 14 iTelescope Observatory, Mayhill
10 J75 793 13 61.00 2007 – 2013 7 OAM Observatory, La Sagra
11 291 79 13 6.08 2006 – 2018 13 LPL/Spacewatch II
12 I52 80 12 6.67 2015 – 2018 4 Steward Observatory, Mt. Lemmon Station
13 F85 157 11 14.27 2007 – 2009 3 Tiki Observatory, Punaauia
14 300 88 9 9.78 2000 – 2015 16 Bisei Spaceguard Center-BATTeRS
15 Q62 1662 9 184.67 2013 – 2018 6 iTelescope Observatory, Siding Spring
Sum 195 34172 199 171.72 2000 – 2018 19 195 names

ARTSAT - Observations of artifical satellites

Sorted by observations per object

Click at right image for a histogram of the top 15 values.
Part of observations per object of top 15 stations at Minor Planet Center for ARTSAT class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 C40 9626 2 4813.00 2012 – 2017 6 Kuban State University Astrophysical Observatory
2 G45 1271 1 1271.00 2015 – 2015 1 Space Surveillance Telescope, Atom Site
3 C41 823 2 411.50 2014 – 2015 2 MASTER-II Observatory, Kislovodsk
4 H06 4740 16 296.25 2005 – 2018 14 iTelescope Observatory, Mayhill
5 561 260 1 260.00 2010 – 2011 2 Piszkesteto Stn. (Konkoly)
6 510 462 2 231.00 2011 – 2015 5 Siegen
7 Q62 1662 9 184.67 2013 – 2018 6 iTelescope Observatory, Siding Spring
8 Z66 363 2 181.50 2015 – 2018 4 DeSS Deimos Sky Survey, Niefla Mountain
9 033 96 1 96.00 2014 – 2015 2 Karl Schwarzschild Observatory, Tautenburg
10 565 81 1 81.00 2011 – 2011 1 Bassano Bresciano
11 C32 78 1 78.00 2011 – 2011 1 Ka-Dar Observatory, TAU Station, Nizhny Arkhyz
12 620 276 4 69.00 2002 – 2008 7 Observatorio Astronomico de Mallorca
13 J75 793 13 61.00 2007 – 2013 7 OAM Observatory, La Sagra
14 168 61 1 61.00 2014 – 2014 1 Kourovskaya
15 958 182 3 60.67 2013 – 2014 2 Observatoire de Dax
Sum 195 34172 199 171.72 2000 – 2018 19 195 names

ARTSAT - Observations of artifical satellites

Sorted by first year of observation

Click at right image for a histogram of the top 15 values.
First year of observation of top 15 stations at Minor Planet Center for ARTSAT class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 413 112 6 18.67 2000 – 2005 6 Siding Spring Observatory
2 300 88 9 9.78 2000 – 2015 16 Bisei Spaceguard Center-BATTeRS
3 422 25 3 8.33 2000 – 2003 4 Loomberah
4 046 15 1 15.00 2001 – 2001 1 Klet Observatory, Ceske Budejovice
5 734 44 3 14.67 2001 – 2007 7 Farpoint Observatory, Eskridge
6 649 37 3 12.33 2001 – 2004 4 Powell Observatory, Louisburg
7 151 10 1 10.00 2001 – 2001 1 Eschenberg Observatory, Winterthur
8 817 10 1 10.00 2001 – 2001 1 Sudbury
9 611 171 8 21.38 2001 – 2009 9 Starkenburg Sternwarte, Heppenheim
10 691 74 8 9.25 2001 – 2018 18 Steward Observatory, Kitt Peak-Spacewatch
11 557 213 6 35.50 2001 – 2015 15 Ondrejov
12 587 41 5 8.20 2001 – 2010 10 Sormano
13 670 8 1 8.00 2001 – 2001 1 Camarillo
14 596 8 1 8.00 2001 – 2001 1 Colleverde di Guidonia
15 859 19 3 6.33 2001 – 2004 4 Wykrota Observatory-CEAMIG
Sum 195 34172 199 171.72 2000 – 2018 19 195 names

ARTSAT - Observations of artifical satellites

Sorted by years span of observations

Click at right image for a histogram of the top 15 values.
Year range of observations of top 15 stations at Minor Planet Center for ARTSAT class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 691 74 8 9.25 2001 – 2018 18 Steward Observatory, Kitt Peak-Spacewatch
2 595 41 7 5.86 2001 – 2018 18 Farra d'Isonzo
3 926 41 7 5.86 2001 – 2017 17 Tenagra II Observatory, Nogales
4 J95 1485 45 33.00 2002 – 2018 17 Great Shefford
5 300 88 9 9.78 2000 – 2015 16 Bisei Spaceguard Center-BATTeRS
6 703 2194 60 36.57 2003 – 2018 16 Catalina Sky Survey
7 557 213 6 35.50 2001 – 2015 15 Ondrejov
8 900 30 7 4.29 2001 – 2015 15 Moriyama
9 705 14 2 7.00 2004 – 2018 15 Apache Point
10 G96 971 47 20.66 2005 – 2018 14 Mt. Lemmon Survey
11 H06 4740 16 296.25 2005 – 2018 14 iTelescope Observatory, Mayhill
12 970 40 5 8.00 2005 – 2017 13 Chelmsford
13 246 26 3 8.67 2005 – 2017 13 Klet Observatory-KLENOT
14 204 131 17 7.71 2006 – 2018 13 Schiaparelli Observatory
15 291 79 13 6.08 2006 – 2018 13 LPL/Spacewatch II
Sum 195 34172 199 171.72 2000 – 2018 19 195 names

CMTOBS - Observations of comets

Sorted by number of observations

Click at right image for a histogram of the top 15 values.
Number of observations of top 15 stations at Minor Planet Center for CMTOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 T05 40349 558 72.31 2015 – 2024 10 ATLAS-HKO, Haleakala
2 T08 37484 500 74.97 2017 – 2024 8 ATLAS-MLO, Mauna Loa
3 249 36997 1990 18.59 1996 – 2023 28 SOHO
4 585 34265 580 59.08 1986 – 2024 39 Kyiv comet station
5 349 29822 993 30.03 1999 – 2024 26 Ageo
6 C23 29021 547 53.05 2010 – 2024 15 Olmen
7 703 28393 910 31.20 1998 – 2024 27 Catalina Sky Survey
8 A77 26360 857 30.76 2005 – 2024 20 Observatoire Chante-Perdrix, Dauban
9 704 25856 668 38.71 1996 – 2013 18 Lincoln Laboratory ETS, New Mexico
10 G96 23904 1069 22.36 2004 – 2024 21 Mt. Lemmon Survey
11 F51 22559 1052 21.44 2009 – 2024 16 Pan-STARRS 1, Haleakala
12 H45 22240 403 55.19 2005 – 2024 20 Arkansas Sky Obs., Petit Jean Mountain South
13 I81 20500 446 45.96 2011 – 2024 14 Tarbatness Observatory, Portmahomack
14 958 20491 342 59.92 1997 – 2024 28 Observatoire de Dax
15 213 20291 726 27.95 2001 – 2024 24 Observatorio Montcabre
Sum 1643 1438802 4675 307.77 1661 – 2024 364 1643 names

CMTOBS - Observations of comets

Sorted by number of observed objects

Click at right image for a histogram of the top 15 values.
Number of objects of top 15 stations at Minor Planet Center for CMTOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 249 36997 1990 18.59 1996 – 2023 28 SOHO
2 215 13227 1288 10.27 2001 – 2024 24 Buchloe
3 G96 23904 1069 22.36 2004 – 2024 21 Mt. Lemmon Survey
4 F51 22559 1052 21.44 2009 – 2024 16 Pan-STARRS 1, Haleakala
5 349 29822 993 30.03 1999 – 2024 26 Ageo
6 H06 12793 967 13.23 2004 – 2024 21 iTelescope Observatory, Mayhill
7 204 7762 915 8.48 2001 – 2024 24 Schiaparelli Observatory
8 703 28393 910 31.20 1998 – 2024 27 Catalina Sky Survey
9 372 8703 879 9.90 1973 – 2023 51 Geisei
10 A77 26360 857 30.76 2005 – 2024 20 Observatoire Chante-Perdrix, Dauban
11 Q62 12018 797 15.08 2012 – 2024 13 iTelescope Observatory, Siding Spring
12 213 20291 726 27.95 2001 – 2024 24 Observatorio Montcabre
13 900 10664 689 15.48 1991 – 2024 34 Moriyama
14 A71 9313 680 13.70 2005 – 2024 20 Stixendorf
15 704 25856 668 38.71 1996 – 2013 18 Lincoln Laboratory ETS, New Mexico
Sum 1643 1438802 4675 307.77 1661 – 2024 364 1643 names

CMTOBS - Observations of comets

Sorted by observations per object

Click at right image for a histogram of the top 15 values.
Part of observations per object of top 15 stations at Minor Planet Center for CMTOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 C57 10215 18 567.50 2018 – 2023 6 TESS
2 G39 4947 31 159.58 2014 – 2021 8 ROAD, San Pedro de Atacama
3 J92 138 1 138.00 2004 – 2004 1 Beaconsfield
4 708 351 3 117.00 1906 – 1911 6 Chamberlin Observatory, Denver
5 134 5567 49 113.61 2013 – 2024 12 Groszschwabhausen
6 C40 9316 83 112.24 2012 – 2024 13 Kuban State University Astrophysical Observatory
7 190 3646 35 104.17 1969 – 2024 56 Gissar
8 I08 104 1 104.00 2011 – 2011 1 Alianza S4, Cerro Burek
9 A46 9089 89 102.12 2002 – 2006 5 Lelekovice
10 334 204 2 102.00 1973 – 1986 14 Tsingtao
11 K81 2946 29 101.59 2018 – 2023 6 P.M.P.H.R. Deep Sky Observatory, Atina
12 I80 97 1 97.00 2019 – 2019 1 Rose Cottage Observatory, Keighley
13 L28 265 3 88.33 2018 – 2023 6 ISON-Castelgrande Observatory
14 W68 17222 201 85.68 2022 – 2024 3 ATLAS Chile, Rio Hurtado
15 813 79 1 79.00 1909 – 1910 2 Santiago-Quinta Normal (1862-1920)
Sum 1643 1438802 4675 307.77 1661 – 2024 364 1643 names

CMTOBS - Observations of comets

Sorted by first year of observation

Click at right image for a histogram of the top 15 values.
First year of observation of top 15 stations at Minor Planet Center for CMTOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 A51 35 1 35.00 1661 – 1661 1 Danzig
2 324 17 4 4.25 1737 – 1985 249 Peking Observatory, Shaho Station
3 007 213 24 8.88 1819 – 1935 117 Paris
4 281 2 1 2.00 1819 – 1819 1 Bologna
5 027 41 7 5.86 1820 – 1923 104 Milan
6 030 534 39 13.69 1827 – 1919 93 Arcetri Observatory, Florence
7 282 1 1 1.00 1827 – 1827 1 Nimes
8 075 119 21 5.67 1835 – 1985 151 Tartu
9 524 32 4 8.00 1835 – 1969 135 Mannheim
10 548 76 10 7.60 1835 – 1910 76 Berlin (1835-1913)
11 058 236 20 11.80 1835 – 1936 102 Kaliningrad
12 051 465 22 21.14 1836 – 1987 152 Royal Observatory, Cape of Good Hope
13 545 40 6 6.67 1846 – 1871 26 Vienna (before 1879)
14 787 54 9 6.00 1846 – 1896 51 U.S. Naval Obs., Washington (before 1893)
15 533 217 23 9.43 1846 – 1921 76 Padua
Sum 1643 1438802 4675 307.77 1661 – 2024 364 1643 names

CMTOBS - Observations of comets

Sorted by years span of observations

Click at right image for a histogram of the top 15 values.
Year range of observations of top 15 stations at Minor Planet Center for CMTOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 324 17 4 4.25 1737 – 1985 249 Peking Observatory, Shaho Station
2 051 465 22 21.14 1836 – 1987 152 Royal Observatory, Cape of Good Hope
3 075 119 21 5.67 1835 – 1985 151 Tartu
4 503 222 40 5.55 1846 – 1993 148 Cambridge
5 797 26 3 8.67 1879 – 2022 144 Yale Observatory, New Haven
6 189 114 17 6.71 1880 – 2019 140 Geneva (before 1967)
7 089 1890 59 32.03 1882 – 2021 140 Mykolaiv
8 524 32 4 8.00 1835 – 1969 135 Mannheim
9 822 759 45 16.87 1885 – 2019 135 Cordoba
10 084 2245 56 40.09 1877 – 2007 131 Pulkovo
11 541 42 8 5.25 1887 – 2017 131 Prague
12 995 33 3 11.00 1870 – 1997 128 Durham
13 662 1324 124 10.68 1888 – 2007 120 Lick Observatory, Mount Hamilton
14 547 26 6 4.33 1866 – 1984 119 Breslau
15 105 162 11 14.73 1879 – 1997 119 Moscow
Sum 1643 1438802 4675 307.77 1661 – 2024 364 1643 names

UNNOBS - Observations of unnumbered minor planets

Sorted by number of observations

Click at right image for a histogram of the top 15 values.
Number of observations of top 15 stations at Minor Planet Center for UNNOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 F51 11602916 630164 18.41 2008 – 2024 17 Pan-STARRS 1, Haleakala
2 G96 7739300 544363 14.22 2004 – 2024 21 Mt. Lemmon Survey
3 F52 4564051 464060 9.84 2015 – 2024 10 Pan-STARRS 2, Haleakala
4 W84 1709468 122046 14.01 2012 – 2024 13 Cerro Tololo-DECam
5 691 871806 173806 5.02 1985 – 2024 40 Steward Observatory, Kitt Peak-Spacewatch
6 V00 479310 101937 4.70 2016 – 2024 9 Kitt Peak-Bok
7 D29 314354 59901 5.25 2006 – 2024 19 Purple Mountain Observatory, XuYi Station
8 703 295524 36941 8.00 1998 – 2024 27 Catalina Sky Survey
9 T09 262805 33585 7.83 2002 – 2024 23 Subaru Telescope, Maunakea
10 I41 247468 23918 10.35 2002 – 2024 23 Palomar Mountain--ZTF
11 C51 236334 21159 11.17 2010 – 2024 15 WISE
12 I52 185534 20917 8.87 2012 – 2024 13 Steward Observatory, Mt. Lemmon Station
13 291 160370 35734 4.49 2001 – 2024 24 LPL/Spacewatch II
14 H21 157545 21522 7.32 2009 – 2024 16 Astronomical Research Observatory, Westfield
15 568 153221 22951 6.68 1989 – 2023 35 Maunakea
Sum 1254 31291222 757919 41.29 1873 – 2024 152 1254 names

UNNOBS - Observations of unnumbered minor planets

Sorted by number of observed objects

Click at right image for a histogram of the top 15 values.
Number of objects of top 15 stations at Minor Planet Center for UNNOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 F51 11602916 630164 18.41 2008 – 2024 17 Pan-STARRS 1, Haleakala
2 G96 7739300 544363 14.22 2004 – 2024 21 Mt. Lemmon Survey
3 F52 4564051 464060 9.84 2015 – 2024 10 Pan-STARRS 2, Haleakala
4 691 871806 173806 5.02 1985 – 2024 40 Steward Observatory, Kitt Peak-Spacewatch
5 W84 1709468 122046 14.01 2012 – 2024 13 Cerro Tololo-DECam
6 V00 479310 101937 4.70 2016 – 2024 9 Kitt Peak-Bok
7 D29 314354 59901 5.25 2006 – 2024 19 Purple Mountain Observatory, XuYi Station
8 703 295524 36941 8.00 1998 – 2024 27 Catalina Sky Survey
9 291 160370 35734 4.49 2001 – 2024 24 LPL/Spacewatch II
10 T09 262805 33585 7.83 2002 – 2024 23 Subaru Telescope, Maunakea
11 807 133870 27698 4.83 1988 – 2024 37 Cerro Tololo Observatory, La Serena
12 I41 247468 23918 10.35 2002 – 2024 23 Palomar Mountain--ZTF
13 568 153221 22951 6.68 1989 – 2023 35 Maunakea
14 O18 123119 21539 5.72 2023 – 2024 2 WFST, Lenghu
15 H21 157545 21522 7.32 2009 – 2024 16 Astronomical Research Observatory, Westfield
Sum 1254 31291222 757919 41.29 1873 – 2024 152 1254 names

UNNOBS - Observations of unnumbered minor planets

Sorted by observations per object

Click at right image for a histogram of the top 15 values.
Part of observations per object of top 15 stations at Minor Planet Center for UNNOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 L50 296 1 296.00 2019 – 2019 1 GenShtab Observatory, Nauchnyi
2 E09 162 1 162.00 2008 – 2008 1 Oakley Southern Sky Observatory, Coonabarabran
3 I27 1221 10 122.10 2010 – 2015 6 Barred Owl Observatory, Carp
4 A84 1281 11 116.45 2002 – 2013 12 TUBITAK National Observatory
5 C20 1637 16 102.31 2008 – 2023 16 Kislovodsk Mtn. Astronomical Stn., Pulkovo Obs.
6 C57 17886 249 71.83 2018 – 2021 4 TESS
7 H78 299 5 59.80 2010 – 2016 7 University of Narino Observatory, Pasto
8 B30 236 4 59.00 2007 – 2007 1 Szamotuly-Galowo
9 134 56 1 56.00 2017 – 2017 1 Groszschwabhausen
10 W05 106 2 53.00 2024 – 2024 1 Tree Gate Farm Observatory, Starkville
11 I23 50 1 50.00 2010 – 2010 1 Frosty Cold Observatory, Mash Harbor
12 C54 98 2 49.00 2020 – 2020 1 New Horizons
13 Z73 98 2 49.00 2015 – 2017 3 Observatorio Nuevos Horizontes, Camas
14 W08 46 1 46.00 2017 – 2017 1 Jimginny Observatory, Naperville
15 H25 41 1 41.00 2009 – 2009 1 Harvest Moon Observatory, Northfield
Sum 1254 31291222 757919 41.29 1873 – 2024 152 1254 names

UNNOBS - Observations of unnumbered minor planets

Sorted by first year of observation

Click at right image for a histogram of the top 15 values.
First year of observation of top 15 stations at Minor Planet Center for UNNOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 767 1 1 1.00 1873 – 1873 1 Ann Arbor
2 787 1 1 1.00 1874 – 1874 1 U.S. Naval Obs., Washington (before 1893)
3 548 1 1 1.00 1878 – 1878 1 Berlin (1835-1913)
4 045 3 3 1.00 1890 – 1940 51 Vienna (since 1879)
5 024 1282 752 1.70 1891 – 2013 123 Heidelberg-Konigstuhl
6 007 1 1 1.00 1892 – 1892 1 Paris
7 537 1 1 1.00 1898 – 1898 1 Urania Observatory, Berlin
8 800 20 20 1.00 1899 – 1922 24 Harvard Observatory, Arequipa
9 786 6 4 1.50 1903 – 1996 94 U.S. Naval Obs., Washington (since 1893)
10 690 65 48 1.35 1906 – 1961 56 Lowell Observatory, Flagstaff
11 803 25 22 1.14 1906 – 1910 5 Taunton
12 084 1134 86 13.19 1906 – 2023 118 Pulkovo
13 078 178 166 1.07 1911 – 1954 44 Johannesburg
14 662 66 28 2.36 1911 – 2004 94 Lick Observatory, Mount Hamilton
15 019 9 9 1.00 1912 – 1912 1 Neuchatel
Sum 1254 31291222 757919 41.29 1873 – 2024 152 1254 names

UNNOBS - Observations of unnumbered minor planets

Sorted by years span of observations

Click at right image for a histogram of the top 15 values.
Year range of observations of top 15 stations at Minor Planet Center for UNNOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 024 1282 752 1.70 1891 – 2013 123 Heidelberg-Konigstuhl
2 084 1134 86 13.19 1906 – 2023 118 Pulkovo
3 094 443 217 2.04 1912 – 2024 113 Crimea-Simeiz
4 006 183 33 5.55 1914 – 2022 109 Fabra Observatory, Barcelona
5 754 576 145 3.97 1924 – 2018 95 Yerkes Observatory, Williams Bay
6 662 66 28 2.36 1911 – 2004 94 Lick Observatory, Mount Hamilton
7 786 6 4 1.50 1903 – 1996 94 U.S. Naval Obs., Washington (since 1893)
8 012 1037 485 2.14 1924 – 2014 91 Uccle
9 119 98 55 1.78 1938 – 2021 84 Abastuman
10 186 246 31 7.94 1942 – 2023 82 Kitab
11 073 594 91 6.53 1943 – 2024 82 Bucharest
12 672 4 3 1.33 1926 – 2003 78 Mount Wilson
13 711 8530 2116 4.03 1950 – 2021 72 McDonald Observatory, Fort Davis
14 675 1489 445 3.35 1952 – 2021 70 Palomar Mountain
15 057 71 40 1.77 1937 – 2004 68 Belgrade
Sum 1254 31291222 757919 41.29 1873 – 2024 152 1254 names

ITF - Observations of tracklets (1-night objects)

Sorted by number of observations

Click at right image for a histogram of the top 15 values.
Number of observations of top 15 stations at Minor Planet Center for ITF class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 F51 3032008 899162 3.37 2009 – 2024 16 Pan-STARRS 1, Haleakala
2 W84 1379734 247897 5.57 2002 – 2024 23 Cerro Tololo-DECam
3 G96 1272893 330527 3.85 2004 – 2024 21 Mt. Lemmon Survey
4 F52 892345 267902 3.33 2014 – 2024 11 Pan-STARRS 2, Haleakala
5 T09 639116 153654 4.16 2002 – 2024 23 Subaru Telescope, Maunakea
6 691 286341 94458 3.03 1990 – 2024 35 Steward Observatory, Kitt Peak-Spacewatch
7 V00 256872 66437 3.87 2016 – 2024 9 Kitt Peak-Bok
8 703 117501 35634 3.30 1998 – 2024 27 Catalina Sky Survey
9 644 102053 34084 2.99 2001 – 2010 10 Palomar Mountain/NEAT
10 699 89367 27144 3.29 1998 – 2008 11 Lowell Observatory-LONEOS
11 568 72606 18740 3.87 1993 – 2022 30 Maunakea
12 695 69258 32359 2.14 1995 – 2024 30 Kitt Peak
13 807 67733 32774 2.07 1997 – 2024 28 Cerro Tololo Observatory, La Serena
14 309 48001 5679 8.45 2000 – 2024 25 Cerro Paranal
15 645 29628 14521 2.04 1998 – 2009 12 Apache Point-Sloan Digital Sky Survey
Sum 793 8636620 2345372 3.68 1950 – 2024 75 793 names

ITF - Observations of tracklets (1-night objects)

Sorted by number of observed objects

Click at right image for a histogram of the top 15 values.
Number of objects of top 15 stations at Minor Planet Center for ITF class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 F51 3032008 899162 3.37 2009 – 2024 16 Pan-STARRS 1, Haleakala
2 G96 1272893 330527 3.85 2004 – 2024 21 Mt. Lemmon Survey
3 F52 892345 267902 3.33 2014 – 2024 11 Pan-STARRS 2, Haleakala
4 W84 1379734 247897 5.57 2002 – 2024 23 Cerro Tololo-DECam
5 T09 639116 153654 4.16 2002 – 2024 23 Subaru Telescope, Maunakea
6 691 286341 94458 3.03 1990 – 2024 35 Steward Observatory, Kitt Peak-Spacewatch
7 V00 256872 66437 3.87 2016 – 2024 9 Kitt Peak-Bok
8 703 117501 35634 3.30 1998 – 2024 27 Catalina Sky Survey
9 644 102053 34084 2.99 2001 – 2010 10 Palomar Mountain/NEAT
10 807 67733 32774 2.07 1997 – 2024 28 Cerro Tololo Observatory, La Serena
11 695 69258 32359 2.14 1995 – 2024 30 Kitt Peak
12 699 89367 27144 3.29 1998 – 2008 11 Lowell Observatory-LONEOS
13 568 72606 18740 3.87 1993 – 2022 30 Maunakea
14 645 29628 14521 2.04 1998 – 2009 12 Apache Point-Sloan Digital Sky Survey
15 O18 28213 9320 3.03 2023 – 2024 2 WFST, Lenghu
Sum 793 8636620 2345372 3.68 1950 – 2024 75 793 names

ITF - Observations of tracklets (1-night objects)

Sorted by observations per object

Click at right image for a histogram of the top 15 values.
Part of observations per object of top 15 stations at Minor Planet Center for ITF class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 D08 60 1 60.00 2013 – 2013 1 Ghezz Observatory, Leontica
2 190 214 4 53.50 2013 – 2021 9 Gissar
3 N42 65 2 32.50 2014 – 2021 8 Tien-Shan Astronomical Observatory
4 181 28 1 28.00 2018 – 2018 1 Observatoire des Makes, Saint-Louis
5 A84 23 1 23.00 2005 – 2005 1 TUBITAK National Observatory
6 258 1243 58 21.43 2018 – 2022 5 Gaia
7 O49 21 1 21.00 2020 – 2020 1 Purple Mountain Observatory, Yaoan Station
8 B41 18 1 18.00 2018 – 2018 1 Zlin Observatory
9 169 16 1 16.00 2012 – 2012 1 Airali Observatory
10 115 16 1 16.00 1998 – 1998 1 Zelenchukskaya
11 W79 30 2 15.00 2021 – 2021 1 Cerro Tololo-LCO Aqawan B #1
12 740 66 5 13.20 2004 – 2004 1 SFA Observatory, Nacogdoches
13 J70 13 1 13.00 2007 – 2008 2 Obs. Astronomico Vega del Thader, El Palmar
14 T03 13 1 13.00 2021 – 2021 1 Haleakala-LCO Clamshell #3
15 D89 12 1 12.00 2011 – 2011 1 Yamagata
Sum 793 8636620 2345372 3.68 1950 – 2024 75 793 names

ITF - Observations of tracklets (1-night objects)

Sorted by first year of observation

Click at right image for a histogram of the top 15 values.
First year of observation of top 15 stations at Minor Planet Center for ITF class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 675 156 39 4.00 1950 – 2023 74 Palomar Mountain
2 261 52 26 2.00 1951 – 1998 48 Palomar Mountain-DSS
3 260 62 31 2.00 1974 – 1995 22 Siding Spring Observatory-DSS
4 413 172 68 2.53 1977 – 2007 31 Siding Spring Observatory
5 046 24 5 4.80 1982 – 2017 36 Klet Observatory, Ceske Budejovice
6 098 60 30 2.00 1983 – 1998 16 Asiago Observatory, Cima Ekar
7 809 3860 963 4.01 1988 – 2022 35 European Southern Observatory, La Silla
8 071 339 70 4.84 1988 – 2020 33 NAO Rozhen, Smolyan
9 691 286341 94458 3.03 1990 – 2024 35 Steward Observatory, Kitt Peak-Spacewatch
10 511 117 21 5.57 1991 – 2024 34 Haute Provence
11 095 950 368 2.58 1991 – 2024 34 Crimea-Nauchnyi
12 808 461 227 2.03 1992 – 2000 9 El Leoncito
13 399 66 33 2.00 1992 – 1995 4 Kushiro
14 372 88 44 2.00 1992 – 2004 13 Geisei
15 801 18 9 2.00 1992 – 1997 6 Oak Ridge Observatory
Sum 793 8636620 2345372 3.68 1950 – 2024 75 793 names

ITF - Observations of tracklets (1-night objects)

Sorted by years span of observations

Click at right image for a histogram of the top 15 values.
Year range of observations of top 15 stations at Minor Planet Center for ITF class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 675 156 39 4.00 1950 – 2023 74 Palomar Mountain
2 261 52 26 2.00 1951 – 1998 48 Palomar Mountain-DSS
3 046 24 5 4.80 1982 – 2017 36 Klet Observatory, Ceske Budejovice
4 809 3860 963 4.01 1988 – 2022 35 European Southern Observatory, La Silla
5 691 286341 94458 3.03 1990 – 2024 35 Steward Observatory, Kitt Peak-Spacewatch
6 511 117 21 5.57 1991 – 2024 34 Haute Provence
7 095 950 368 2.58 1991 – 2024 34 Crimea-Nauchnyi
8 071 339 70 4.84 1988 – 2020 33 NAO Rozhen, Smolyan
9 670 8 3 2.67 1992 – 2024 33 Camarillo
10 033 625 205 3.05 1993 – 2024 32 Karl Schwarzschild Observatory, Tautenburg
11 381 109 18 6.06 1993 – 2024 32 Tokyo-Kiso
12 413 172 68 2.53 1977 – 2007 31 Siding Spring Observatory
13 950 10129 2159 4.69 1994 – 2024 31 La Palma
14 303 29 15 1.93 1994 – 2024 31 OAN de Llano del Hato, Merida
15 568 72606 18740 3.87 1993 – 2022 30 Maunakea
Sum 793 8636620 2345372 3.68 1950 – 2024 75 793 names

NUMOBS - Observations of numbered objects

Sorted by number of observations

Click at right image for a histogram of the top 15 values.
Number of observations of top 15 stations at Minor Planet Center for NUMOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 G96 65201291 755460 86.31 2004 – 2024 21 Mt. Lemmon Survey
2 F51 59593557 756430 78.78 2008 – 2024 17 Pan-STARRS 1, Haleakala
3 703 37200783 492011 75.61 1998 – 2024 27 Catalina Sky Survey
4 704 32742557 368404 88.88 1979 – 2013 35 Lincoln Laboratory ETS, New Mexico
5 T05 28306718 288022 98.28 2015 – 2024 10 ATLAS-HKO, Haleakala
6 T08 27595282 293640 93.98 2014 – 2024 11 ATLAS-MLO, Mauna Loa
7 F52 26070735 746272 34.93 2014 – 2024 11 Pan-STARRS 2, Haleakala
8 G45 17028661 386177 44.10 2011 – 2017 7 Space Surveillance Telescope, Atom Site
9 I41 14521045 398827 36.41 2002 – 2024 23 Palomar Mountain--ZTF
10 D29 14444791 564613 25.58 2006 – 2024 19 Purple Mountain Observatory, XuYi Station
11 691 13380531 670089 19.97 1984 – 2024 41 Steward Observatory, Kitt Peak-Spacewatch
12 W68 10027374 190894 52.53 2022 – 2024 3 ATLAS Chile, Rio Hurtado
13 P07 7408412 254613 29.10 2020 – 2024 5 Space Surveillance Telescope, HEH Station
14 M22 6397673 168665 37.93 2022 – 2024 3 ATLAS South Africa, Sutherland
15 699 5376659 263864 20.38 1998 – 2008 11 Lowell Observatory-LONEOS
Sum 2356 398482333 756999 526.40 1801 – 2024 224 2356 names

NUMOBS - Observations of numbered objects

Sorted by number of observed objects

Click at right image for a histogram of the top 15 values.
Number of objects of top 15 stations at Minor Planet Center for NUMOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 F51 59593557 756430 78.78 2008 – 2024 17 Pan-STARRS 1, Haleakala
2 G96 65201291 755460 86.31 2004 – 2024 21 Mt. Lemmon Survey
3 F52 26070735 746272 34.93 2014 – 2024 11 Pan-STARRS 2, Haleakala
4 691 13380531 670089 19.97 1984 – 2024 41 Steward Observatory, Kitt Peak-Spacewatch
5 D29 14444791 564613 25.58 2006 – 2024 19 Purple Mountain Observatory, XuYi Station
6 703 37200783 492011 75.61 1998 – 2024 27 Catalina Sky Survey
7 I41 14521045 398827 36.41 2002 – 2024 23 Palomar Mountain--ZTF
8 G45 17028661 386177 44.10 2011 – 2017 7 Space Surveillance Telescope, Atom Site
9 704 32742557 368404 88.88 1979 – 2013 35 Lincoln Laboratory ETS, New Mexico
10 644 3973555 314564 12.63 1990 – 2010 21 Palomar Mountain/NEAT
11 V00 1623876 295870 5.49 2016 – 2024 9 Kitt Peak-Bok
12 T08 27595282 293640 93.98 2014 – 2024 11 ATLAS-MLO, Mauna Loa
13 T05 28306718 288022 98.28 2015 – 2024 10 ATLAS-HKO, Haleakala
14 699 5376659 263864 20.38 1998 – 2008 11 Lowell Observatory-LONEOS
15 P07 7408412 254613 29.10 2020 – 2024 5 Space Surveillance Telescope, HEH Station
Sum 2356 398482333 756999 526.40 1801 – 2024 224 2356 names

NUMOBS - Observations of numbered objects

Sorted by observations per object

Click at right image for a histogram of the top 15 values.
Part of observations per object of top 15 stations at Minor Planet Center for NUMOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 874 4420 2 2210.00 1995 – 2013 19 Observatorio do Pico dos Dias, Itajuba
2 768 1966 2 983.00 1930 – 1934 5 Dearborn Observatory, Evanston (aft. Oct. 1939)
3 217 769 3 256.33 2021 – 2021 1 Assah
4 O44 453 2 226.50 2012 – 2013 2 Lijiang Station, Yunnan Observatories
5 708 398 2 199.00 1895 – 1908 14 Chamberlin Observatory, Denver
6 Z42 572 3 190.67 2017 – 2017 1 Rushay Farm Observatory, Sturminster Newton
7 W78 331 2 165.50 2017 – 2018 2 Clay Telescope, Harvard University
8 L98 5201 32 162.53 2017 – 2018 2 La Sagra Observatory, Puebla de Don Fadrique
9 R78 912 7 130.29 2024 – 2024 1 Crystal Lake Observatory, Ngutunui
10 Y28 3024 25 120.96 2011 – 2018 8 OASI, Nova Itacuruba
11 248 5641 48 117.52 1989 – 1993 5 Hipparcos
12 778 1981 17 116.53 1935 – 1990 56 Allegheny Observatory, Pittsburgh
13 T05 28306718 288022 98.28 2015 – 2024 10 ATLAS-HKO, Haleakala
14 193 1060 11 96.36 2013 – 2024 12 Sanglok
15 T08 27595282 293640 93.98 2014 – 2024 11 ATLAS-MLO, Mauna Loa
Sum 2356 398482333 756999 526.40 1801 – 2024 224 2356 names

NUMOBS - Observations of numbered objects

Sorted by first year of observation

Click at right image for a histogram of the top 15 values.
First year of observation of top 15 stations at Minor Planet Center for NUMOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 535 21 1 21.00 1801 – 1801 1 Palermo
2 500 2886 56 51.54 1802 – 2021 220 Geocentric
3 528 164 18 9.11 1804 – 1983 180 Gottingen
4 541 165 33 5.00 1804 – 2000 197 Prague
5 027 185 38 4.87 1804 – 1942 139 Milan
6 283 4 1 4.00 1804 – 1804 1 Bremen
7 058 347 61 5.69 1820 – 1939 120 Kaliningrad
8 548 609 88 6.92 1822 – 1898 77 Berlin (1835-1913)
9 527 82 10 8.20 1823 – 1861 39 Altona
10 969 15 3 5.00 1825 – 1852 28 London-Regents Park
11 524 17 3 5.67 1827 – 1834 8 Mannheim
12 533 687 102 6.74 1829 – 1923 95 Padua
13 503 134 16 8.38 1830 – 1989 160 Cambridge
14 062 8585 1800 4.77 1830 – 1957 128 Turku
15 545 264 41 6.44 1830 – 1873 44 Vienna (before 1879)
Sum 2356 398482333 756999 526.40 1801 – 2024 224 2356 names

NUMOBS - Observations of numbered objects

Sorted by years span of observations

Click at right image for a histogram of the top 15 values.
Year range of observations of top 15 stations at Minor Planet Center for NUMOBS class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 500 2886 56 51.54 1802 – 2021 220 Geocentric
2 541 165 33 5.00 1804 – 2000 197 Prague
3 528 164 18 9.11 1804 – 1983 180 Gottingen
4 084 23781 1090 21.82 1846 – 2013 168 Pulkovo
5 503 134 16 8.38 1830 – 1989 160 Cambridge
6 027 185 38 4.87 1804 – 1942 139 Milan
7 784 373 63 5.92 1866 – 2002 137 Stull Observatory, Alfred University
8 035 3029 110 27.54 1835 – 1970 136 Copenhagen
9 822 1666 231 7.21 1885 – 2020 136 Cordoba
10 062 8585 1800 4.77 1830 – 1957 128 Turku
11 055 244 89 2.74 1835 – 1957 123 Cracow
12 058 347 61 5.69 1820 – 1939 120 Kaliningrad
13 024 17165 2686 6.39 1891 – 2009 119 Heidelberg-Konigstuhl
14 013 5587 87 64.22 1864 – 1979 116 Leiden
15 070 138 56 2.46 1841 – 1954 114 Vilnius (before 1939)
Sum 2356 398482333 756999 526.40 1801 – 2024 224 2356 names

ALL - Observations of all objects together

Sorted by number of observations

Click at right image for a histogram of the top 15 values.
Number of observations of top 15 stations at Minor Planet Center for ALL class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 F51 74251880 2286485 32.47 2008 – 2024 17 Pan-STARRS 1, Haleakala
2 G96 74238733 1631093 45.51 2004 – 2024 21 Mt. Lemmon Survey
3 703 37644594 565191 66.61 1998 – 2024 27 Catalina Sky Survey
4 704 32851037 376480 87.26 1979 – 2013 35 Lincoln Laboratory ETS, New Mexico
5 F52 31536909 1478670 21.33 2014 – 2024 11 Pan-STARRS 2, Haleakala
6 T05 28410450 294555 96.45 2015 – 2024 10 ATLAS-HKO, Haleakala
7 T08 27698882 300287 92.24 2014 – 2024 11 ATLAS-MLO, Mauna Loa
8 G45 17168491 397155 43.23 2011 – 2017 7 Space Surveillance Telescope, Atom Site
9 D29 14781196 630527 23.44 2006 – 2024 19 Purple Mountain Observatory, XuYi Station
10 I41 14779168 424384 34.82 2002 – 2024 23 Palomar Mountain--ZTF
11 691 14547451 938783 15.50 1984 – 2024 41 Steward Observatory, Kitt Peak-Spacewatch
12 W68 10064836 192880 52.18 2022 – 2024 3 ATLAS Chile, Rio Hurtado
13 P07 7453750 260231 28.64 2020 – 2024 5 Space Surveillance Telescope, HEH Station
14 M22 6423655 170255 37.73 2022 – 2024 3 ATLAS South Africa, Sutherland
15 W84 5828482 554188 10.52 2002 – 2024 23 Cerro Tololo-DECam
Sum 2506 439911334 3861942 113.91 1661 – 2024 364 2506 names

ALL - Observations of all objects together

Sorted by number of observed objects

Click at right image for a histogram of the top 15 values.
Number of objects of top 15 stations at Minor Planet Center for ALL class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 F51 74251880 2286485 32.47 2008 – 2024 17 Pan-STARRS 1, Haleakala
2 G96 74238733 1631093 45.51 2004 – 2024 21 Mt. Lemmon Survey
3 F52 31536909 1478670 21.33 2014 – 2024 11 Pan-STARRS 2, Haleakala
4 691 14547451 938783 15.50 1984 – 2024 41 Steward Observatory, Kitt Peak-Spacewatch
5 D29 14781196 630527 23.44 2006 – 2024 19 Purple Mountain Observatory, XuYi Station
6 703 37644594 565191 66.61 1998 – 2024 27 Catalina Sky Survey
7 W84 5828482 554188 10.52 2002 – 2024 23 Cerro Tololo-DECam
8 V00 2360705 464334 5.08 2016 – 2024 9 Kitt Peak-Bok
9 I41 14779168 424384 34.82 2002 – 2024 23 Palomar Mountain--ZTF
10 G45 17168491 397155 43.23 2011 – 2017 7 Space Surveillance Telescope, Atom Site
11 704 32851037 376480 87.26 1979 – 2013 35 Lincoln Laboratory ETS, New Mexico
12 644 4124222 357087 11.55 1990 – 2010 21 Palomar Mountain/NEAT
13 T08 27698882 300287 92.24 2014 – 2024 11 ATLAS-MLO, Mauna Loa
14 T05 28410450 294555 96.45 2015 – 2024 10 ATLAS-HKO, Haleakala
15 699 5483082 293807 18.66 1998 – 2009 12 Lowell Observatory-LONEOS
Sum 2506 439911334 3861942 113.91 1661 – 2024 364 2506 names

ALL - Observations of all objects together

Sorted by observations per object

Click at right image for a histogram of the top 15 values.
Part of observations per object of top 15 stations at Minor Planet Center for ALL class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 249 36997 13 2845.92 1996 – 2023 28 SOHO
2 768 1966 2 983.00 1930 – 1934 5 Dearborn Observatory, Evanston (aft. Oct. 1939)
3 C49 3059 5 611.80 2007 – 2023 17 STEREO-A
4 874 4857 12 404.75 1983 – 2013 31 Observatorio do Pico dos Dias, Itajuba
5 C50 1392 5 278.40 2007 – 2013 7 STEREO-B
6 G39 5044 24 210.17 2012 – 2021 10 ROAD, San Pedro de Atacama
7 217 797 4 199.25 1984 – 2021 38 Assah
8 Z42 572 3 190.67 2017 – 2017 1 Rushay Farm Observatory, Sturminster Newton
9 708 749 4 187.25 1895 – 1911 17 Chamberlin Observatory, Denver
10 A46 9181 54 170.02 2002 – 2006 5 Lelekovice
11 W78 331 2 165.50 2017 – 2018 2 Clay Telescope, Harvard University
12 L98 5201 32 162.53 2017 – 2018 2 La Sagra Observatory, Puebla de Don Fadrique
13 R78 912 7 130.29 2024 – 2024 1 Crystal Lake Observatory, Ngutunui
14 Q19 1001 8 125.13 2015 – 2024 10 Machida
15 248 5641 48 117.52 1989 – 1993 5 Hipparcos
Sum 2506 439911334 3861942 113.91 1661 – 2024 364 2506 names

ALL - Observations of all objects together

Sorted by first year of observation

Click at right image for a histogram of the top 15 values.
First year of observation of top 15 stations at Minor Planet Center for ALL class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 A51 35 1 35.00 1661 – 1661 1 Danzig
2 324 22 5 4.40 1737 – 1985 249 Peking Observatory, Shaho Station
3 535 52 3 17.33 1801 – 1903 103 Palermo
4 500 3140 63 49.84 1802 – 2021 220 Geocentric
5 541 211 39 5.41 1804 – 2017 214 Prague
6 027 226 43 5.26 1804 – 1942 139 Milan
7 528 243 21 11.57 1804 – 1986 183 Gottingen
8 283 4 1 4.00 1804 – 1804 1 Bremen
9 007 676 128 5.28 1819 – 1950 132 Paris
10 281 2 1 2.00 1819 – 1819 1 Bologna
11 058 583 73 7.99 1820 – 1939 120 Kaliningrad
12 548 686 94 7.30 1822 – 1910 89 Berlin (1835-1913)
13 527 91 12 7.58 1823 – 1871 49 Altona
14 969 15 3 5.00 1825 – 1852 28 London-Regents Park
15 282 8 2 4.00 1827 – 1858 32 Nimes
Sum 2506 439911334 3861942 113.91 1661 – 2024 364 2506 names

ALL - Observations of all objects together

Sorted by years span of observations

Click at right image for a histogram of the top 15 values.
Year range of observations of top 15 stations at Minor Planet Center for ALL class
Rank Station Observations Objects Observation per object Years of observation Years Station name
No. Code Number Number   Range span  
1 324 22 5 4.40 1737 – 1985 249 Peking Observatory, Shaho Station
2 500 3140 63 49.84 1802 – 2021 220 Geocentric
3 541 211 39 5.41 1804 – 2017 214 Prague
4 528 243 21 11.57 1804 – 1986 183 Gottingen
5 084 27160 1197 22.69 1846 – 2023 178 Pulkovo
6 503 356 33 10.79 1830 – 1993 164 Cambridge
7 189 283 40 7.07 1861 – 2019 159 Geneva (before 1967)
8 051 1080 32 33.75 1836 – 1987 152 Royal Observatory, Cape of Good Hope
9 075 841 258 3.26 1835 – 1985 151 Tartu
10 995 124 12 10.33 1850 – 1997 148 Durham
11 784 511 79 6.47 1866 – 2012 147 Stull Observatory, Alfred University
12 062 8795 1851 4.75 1830 – 1973 144 Turku
13 797 363 26 13.96 1879 – 2022 144 Yale Observatory, New Haven
14 524 49 5 9.80 1827 – 1969 143 Mannheim
15 089 24440 794 30.78 1882 – 2024 143 Mykolaiv
Sum 2506 439911334 3861942 113.91 1661 – 2024 364 2506 names