MPC observations statistics

SATOBS - Observations of natural satellites

Sorted by years span of observations

The statistics were made with a self-developed program by Jost Jahn, Amrum, Germany, itfstat@jostjahn.de.

They will be updated some days after publication of new files by the MPC, mostly each 2 months or so.
Date of this file is 02-23-2024

Year range of observations of top 15 stations at Minor Planet Center for SATOBS class
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
8 675 444 46 9.65 1974 – 2011 38 Palomar Mountain
9 568 5245 213 24.62 1984 – 2021 38 Maunakea
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
15 807 467 82 5.70 1998 – 2022 25 Cerro Tololo Observatory, La Serena
16 703 199 8 24.88 1999 – 2022 24 Catalina Sky Survey
17 786 47 1 47.00 1905 – 1927 23 U.S. Naval Obs., Washington (since 1893)
18 106 89 8 11.13 1999 – 2021 23 Crni Vrh
19 309 132 19 6.95 2000 – 2021 22 Cerro Paranal
20 304 535 65 8.23 2002 – 2022 21 Las Campanas Observatory
21 938 8 2 4.00 2002 – 2021 20 Linhaceira
22 095 5 2 2.50 1970 – 1987 18 Crimea-Nauchnyi
23 G96 374 17 22.00 2005 – 2022 18 Mt. Lemmon Survey
24 215 5 2 2.50 2005 – 2020 16 Buchloe
25 704 1662 9 184.67 1998 – 2013 16 Lincoln Laboratory ETS, New Mexico
26 D29 500 12 41.67 2007 – 2022 16 Purple Mountain Observatory, XuYi Station
27 950 78 19 4.11 1997 – 2011 15 La Palma
28 926 53 7 7.57 2000 – 2014 15 Tenagra II Observatory, Nogales
29 822 17 2 8.50 1939 – 1952 14 Cordoba
30 I41 364 10 36.40 2010 – 2022 13 Palomar Mountain--ZTF
31 C51 271 10 27.10 2010 – 2022 13 WISE
32 T14 528 86 6.14 2010 – 2021 12 Canada-France-Hawaii Telescope, Maunakea
33 F51 578 22 26.27 2011 – 2022 12 Pan-STARRS 1, Haleakala
34 W84 601 33 18.21 2013 – 2022 10 Cerro Tololo-DECam
35 413 14 8 1.75 1990 – 1998 9 Siding Spring Observatory
36 699 193 8 24.13 1998 – 2006 9 Lowell Observatory-LONEOS
37 Y00 42 7 6.00 2014 – 2022 9 SONEAR Observatory, Oliveira
38 G37 21 8 2.63 2014 – 2022 9 Lowell Discovery Telescope
39 J43 133 8 16.63 2011 – 2018 8 Oukaimeden Observatory, Marrakech
40 291 72 10 7.20 2003 – 2010 8 LPL/Spacewatch II
41 G36 915 11 83.18 2011 – 2018 8 Calar Alto-CASADO
42 C95 47 9 5.22 2013 – 2020 8 SATINO Remote Observatory, Haute Provence
43 H06 47 9 5.22 2006 – 2013 8 iTelescope Observatory, Mayhill
44 760 4 1 4.00 1963 – 1970 8 Goethe Link Observatory, Brooklyn
45 H15 27 4 6.75 2010 – 2017 8 ISON-NM Observatory, Mayhill
46 F52 15 3 5.00 2015 – 2022 8 Pan-STARRS 2, Haleakala
47 381 222 7 31.71 1986 – 1992 7 Tokyo-Kiso
48 E12 40 6 6.67 2005 – 2011 7 Siding Spring Survey
49 874 433 9 48.11 1993 – 1999 7 Observatorio do Pico dos Dias, Itajuba
50 185 32 6 5.33 2001 – 2007 7 Observatoire Astronomique Jurassien-Vicques
51 415 2035 15 135.67 2004 – 2010 7 Kambah
52 W88 27 6 4.50 2015 – 2021 7 Slooh.com Chile Observatory, La Dehesa
53 958 9 2 4.50 2007 – 2013 7 Observatoire de Dax
54 T05 1798 10 179.80 2016 – 2022 7 ATLAS-HKO, Haleakala
55 J04 9 2 4.50 2010 – 2015 6 ESA Optical Ground Station, Tenerife
56 644 248 11 22.55 2001 – 2006 6 Palomar Mountain/NEAT
57 G40 50 7 7.14 2015 – 2020 6 Slooh.com Canary Islands Observatory
58 696 61 10 6.10 1997 – 2002 6 Whipple Observatory, Mt. Hopkins
59 Z80 52 8 6.50 2016 – 2021 6 Northolt Branch Observatory
60 T08 1975 11 179.55 2017 – 2022 6 ATLAS-MLO, Mauna Loa
61 000 181 4 45.25 1906 – 1910 5 Greenwich
62 608 126 7 18.00 2001 – 2005 5 Haleakala-AMOS
63 E07 558 17 32.82 2011 – 2015 5 Murrumbateman
64 B01 6 2 3.00 2007 – 2011 5 Taunus Observatory, Frankfurt
65 A50 13 2 6.50 2008 – 2011 4 Andrushivka Astronomical Observatory
66 J37 9 3 3.00 2008 – 2011 4 Huelva
67 286 210 1 210.00 2003 – 2005 3 Yunnan Observatory
68 333 58 6 9.67 2003 – 2005 3 Desert Eagle Observatory
69 C73 11 2 5.50 2011 – 2013 3 Galati Observatory
70 G45 426 7 60.86 2014 – 2016 3 Space Surveillance Telescope, Atom Site
71 D35 7 3 2.33 2006 – 2008 3 Lulin Observatory
72 J75 48 5 9.60 2009 – 2011 3 OAM Observatory, La Sagra
73 W76 13 3 4.33 2020 – 2022 3 CHILESCOPE Observatory, Rio Hurtado
74 337 115 1 115.00 2003 – 2004 2 Sheshan, formerly Zo-Se
75 120 23 2 11.50 1998 – 1999 2 Visnjan
76 C41 10 3 3.33 2014 – 2015 2 MASTER-II Observatory, Kislovodsk
77 H21 7 2 3.50 2011 – 2012 2 Astronomical Research Observatory, Westfield
78 709 76 2 38.00 1997 – 1998 2 W & B Observatory, Cloudcroft
79 493 68 9 7.56 2001 – 2002 2 Calar Alto
80 511 170 2 85.00 1998 – 1999 2 Haute Provence
81 888 14 1 14.00 1988 – 1989 2 Gekko
82 K95 10 2 5.00 2016 – 2017 2 MASTER-SAAO Observatory, Sutherland
83 024 14 3 4.67 1908 – 1909 2 Heidelberg-Konigstuhl
84 Z22 12 3 4.00 2016 – 2017 2 MASTER-IAC Observatory, Tenerife
85 213 12 4 3.00 2006 – 2007 2 Observatorio Montcabre
86 X74 12 4 3.00 2019 – 2020 2 Observatorio Campo dos Amarais
87 800 16 2 8.00 1898 – 1899 2 Harvard Observatory, Arequipa
88 W68 269 7 38.43 2022 – 2023 2 ATLAS Chile, Rio Hurtado
89 M22 164 6 27.33 2022 – 2023 2 ATLAS South Africa, Sutherland
90 119 1 1 1.00 1994 – 1994 1 Abastuman
91 732 15 3 5.00 2000 – 2000 1 Oaxaca
92 919 2 1 2.00 2000 – 2000 1 Desert Beaver Observatory
93 566 3 1 3.00 1996 – 1996 1 Haleakala-NEAT/GEODSS
94 683 4 1 4.00 2008 – 2008 1 Goodricke-Pigott Observatory, Tucson
95 739 8 2 4.00 2000 – 2000 1 Sunflower Observatory, Olathe
96 697 2 1 2.00 2000 – 2000 1 Kitt Peak, McGraw-Hill
97 H01 4 1 4.00 2009 – 2009 1 Magdalena Ridge Observatory, Socorro
98 E10 7 2 3.50 2010 – 2010 1 Siding Spring-Faulkes Telescope South
99 678 3 1 3.00 2000 – 2000 1 Fountain Hills
100 G68 15 1 15.00 2010 – 2010 1 Sierra Stars Observatory, Markleeville
101 198 20 1 20.00 2010 – 2010 1 Wildberg
102 808 6 2 3.00 1965 – 1965 1 El Leoncito
103 802 1 1 1.00 1894 – 1894 1 Harvard Observatory, Cambridge
104 H82 6 1 6.00 2010 – 2010 1 CBA-NOVAC Observatory, Front Royal
105 I77 8 1 8.00 2010 – 2010 1 CEAMIG-REA Observatory, Belo Horizonte
106 910 3 1 3.00 1997 – 1997 1 Caussols-ODAS
107 071 9 1 9.00 1984 – 1984 1 NAO Rozhen, Smolyan
108 761 3 1 3.00 2001 – 2001 1 Zephyrhills
109 636 2 1 2.00 2002 – 2002 1 Essen
110 094 1 1 1.00 1929 – 1929 1 Crimea-Simeiz
111 074 8 1 8.00 1957 – 1957 1 Boyden Observatory, Bloemfontein
112 B18 9 1 9.00 1998 – 1998 1 Terskol
113 I02 4 4 1.00 1998 – 1998 1 Cerro Tololo Observatory, La Serena--2MASS
114 D00 8 2 4.00 2012 – 2012 1 ASC-Kislovodsk Observatory
115 300 7 1 7.00 2012 – 2012 1 Bisei Spaceguard Center-BATTeRS
116 829 4 1 4.00 1998 – 1998 1 Complejo Astronomico El Leoncito
117 C77 3 1 3.00 2013 – 2013 1 Bernezzo Observatory
118 G84 6 1 6.00 2013 – 2013 1 Mount Lemmon SkyCenter
119 461 3 1 3.00 2013 – 2013 1 University of Szeged, Piszkesteto Stn. (Konkoly)
120 K33 4 1 4.00 2013 – 2013 1 San Defendente
121 I89 46 7 6.57 2013 – 2013 1 iTelescope Observatory, Nerpio
122 H29 6 1 6.00 2003 – 2003 1 Ivywood Observatory, Edmond
123 087 22 1 22.00 1911 – 1911 1 Helwan
124 H07 8 1 8.00 2014 – 2014 1 7300 Observatory, Cloudcroft
125 705 3 1 3.00 2004 – 2004 1 Apache Point
126 U69 1 1 1.00 2014 – 2014 1 iTelescope SRO Observatory, Auberry
127 850 25 1 25.00 2014 – 2014 1 Cordell-Lorenz Observatory, Sewanee
128 V30 9 2 4.50 2014 – 2014 1 Heaven on Earth Observatory, Mayhill
129 599 12 2 6.00 2004 – 2004 1 Campo Imperatore-CINEOS
130 V37 8 1 8.00 2014 – 2014 1 McDonald Observatory-LCO ELP
131 078 1 1 1.00 1935 – 1935 1 Johannesburg
132 565 3 1 3.00 2004 – 2004 1 Bassano Bresciano
133 224 3 1 3.00 2004 – 2004 1 Ottmarsheim
134 G80 217 1 217.00 2015 – 2015 1 Sierra Remote Observatories, Auberry
135 133 12 1 12.00 1998 – 1998 1 Les Tardieux
136 330 1 1 1.00 1964 – 1964 1 Purple Mountain Observatory, Nanking
137 A13 20 1 20.00 2005 – 2005 1 Observatoire Naef, Ependes
138 138 3 1 3.00 2005 – 2005 1 Village-Neuf
139 365 9 2 4.50 1993 – 1993 1 Uto Observatory
140 Z84 3 1 3.00 2017 – 2017 1 Calar Alto-Schmidt
141 W98 3 1 3.00 2017 – 2017 1 Polonia Observatory, San Pedro de Atacama
142 G92 14 3 4.67 2006 – 2006 1 Jarnac Observatory, Vail
143 118 5 1 5.00 2017 – 2017 1 Astronomical and Geophysical Observatory, Modra
144 T09 8 2 4.00 2017 – 2017 1 Subaru Telescope, Maunakea
145 T12 3 2 1.50 2018 – 2018 1 University of Hawaii 88-inch telescope, Maunakea
146 I52 4 1 4.00 2019 – 2019 1 Steward Observatory, Mt. Lemmon Station
147 835 9 1 9.00 1999 – 1999 1 Drum Hill Station, Chelmsford
148 L01 3 1 3.00 2019 – 2019 1 Visnjan Observatory, Tican
149 K83 14 1 14.00 2020 – 2020 1 Beppe Forti Astronomical Observatory, Montelupo
150 303 2 1 2.00 1994 – 1994 1 OAN de Llano del Hato, Merida
151 V00 16 4 4.00 2021 – 2021 1 Kitt Peak-Bok
152 G34 4 1 4.00 2021 – 2021 1 Oberfrauendorf
153 757 2 1 2.00 1999 – 1999 1 High Point
154 P07 11 2 5.50 2022 – 2022 1 Space Surveillance Telescope, HEH Station
155 M11 3 1 3.00 2022 – 2022 1 Novaastro Observatory, Banon
156 W94 3 1 3.00 2022 – 2022 1 MAP, San Pedro de Atacama
157 L51 3 1 3.00 2022 – 2022 1 MARGO, Nauchnyi
158 143 3 1 3.00 2006 – 2006 1 Gnosca
Sum 158 28073 226 124.22 1894 – 2023 130 158 names