This list was last updated on 2012 May 8.
Rank Discoveries Between Site name
1 132063 1980-2010 Lincoln Laboratory ETS, New Mexico
2 57784 1973-2010 Steward Observatory, Kitt Peak-Spacewatch
3 26259 1960-2011 Palomar Mountain/NEAT
4 18140 1998-2008 Lowell Observatory-LONEOS
5 15898 1977-2011 Mt. Lemmon Survey
6 14596 1973-2011 Catalina Sky Survey
7 6965 1993-2007 Haleakala-AMOS
8 6736 1949-2008 Palomar Mountain
9 5609 1976-2010 European Southern Observatory, La Silla
10 3000 1995-2010 LPL/Spacewatch II
11 2472 1991-2002 Oizumi
12 1808 1975-2007 Siding Spring Observatory
13 1453 2001-2008 Desert Eagle Observatory
14 1423 1999-2010 Siding Spring Survey
15 1399 1995-2001 Visnjan
16 1285 1966-1992 Crimea-Nauchnij
17 1255 1982-2002 Peking Observatory, Xinglong Station
18 1229 1960-2010 OAM Observatory, La Sagra
19 1067 1996-2005 Campo Imperatore-CINEOS
1067 1997-2008 Reedy Creek
21 926 1996-1999 Caussols-ODAS
22 892 1977-2002 Klet Observatory, Ceske Budejovice
23 835 1998-2004 Apache Point-Sloan Digital Sky Survey
24 823 1891-2007 Heidelberg-Konigstuhl
25 723 1987-2000 Kushiro
26 705 1973-2009 Lowell Observatory, Anderson Mesa Station
27 690 1996-2010 Goodricke-Pigott Observatory, Tucson
28 680 1987-2008 Kitami
29 674 1994-2008 Ondrejov
30 639 1995-2003 Prescott
31 593 1977-2010 WISE
32 551 1995-2002 Haleakala-NEAT/GEODSS
33 538 1961-1995 Karl Schwarzschild Observatory, Tautenburg
34 499 1999-2003 Fountain Hills
35 491 1994-2010 Bergisch Gladbach
36 454 1982-2007 Kitt Peak
37 420 1960-2010 Pan-STARRS 1, Haleakala
38 374 1994-2010 Crni Vrh
39 355 1978-2006 Cerro Tololo Observatory, La Serena
40 321 1993-2000 Nachi-Katsuura Observatory
41 317 2002-2010 RAS Observatory, Mayhill
42 309 2000-2010 Bisei Spaceguard Center-BATTeRS
309 1998-2009 Farpoint Observatory, Eskridge
44 305 1992-2009 Mauna Kea
45 303 1925-2009 Uccle
46 300 1995-2010 University of Szeged, Piszkesteto Stn. (Konkoly)
47 298 2004-2006 Apache Point
48 294 2002-2009 Lulin Observatory
49 273 1978-1996 Caussols
50 272 1994-2008 San Marcello Pistoiese