Welcome to MPEC Watch!
Note: This site is still under active development.
MPEC Watch provides various statistical metrics and plots derived from Minor Planet Center's Minor Planet Electronic Circular service. This website is created and maintained by Quanzhi Ye and Taegon Hibbitts. Tables and plots are automatically updated at midnight US Eastern Time.
Last update: UTC 2024-03-28 04:02:01
At a glance
Year | Total MPECs | Editorial | Discovery | P/R/FU | DOU | List Update | Retraction | Other |
---|---|---|---|---|---|---|---|---|
1. P/R/FU - precovery/recovery/follow-up.
2. DOU - Daily Orbit Update. | ||||||||
2024 | 979 | 1 | 657 | 233 | 87 | 0 | 1 | 0 |
2023 | 4258 | 2 | 3185 | 700 | 366 | 0 | 5 | 0 |
2022 | 4229 | 1 | 3250 | 615 | 358 | 0 | 0 | 5 |
2021 | 4477 | 3 | 3339 | 761 | 366 | 0 | 0 | 8 |
2020 | 4019 | 0 | 3160 | 474 | 367 | 0 | 0 | 18 |
2019 | 3728 | 0 | 2582 | 777 | 360 | 0 | 1 | 8 |
2018 | 2790 | 0 | 1967 | 453 | 362 | 0 | 3 | 5 |
2017 | 3000 | 0 | 2197 | 438 | 362 | 0 | 0 | 3 |
2016 | 3198 | 0 | 2286 | 547 | 363 | 0 | 1 | 1 |
2015 | 2486 | 1 | 1660 | 457 | 364 | 0 | 4 | 0 |
2014 | 2170 | 1 | 1447 | 360 | 361 | 0 | 1 | 0 |
2013 | 1797 | 1 | 1089 | 352 | 354 | 0 | 0 | 1 |
2012 | 1729 | 1 | 1043 | 319 | 361 | 0 | 3 | 2 |
2011 | 1629 | 1 | 919 | 297 | 361 | 51 | 0 | 0 |
2010 | 2027 | 1 | 967 | 631 | 361 | 65 | 1 | 1 |
2009 | 1899 | 1 | 829 | 629 | 365 | 72 | 0 | 3 |
2008 | 1883 | 1 | 858 | 590 | 366 | 66 | 0 | 2 |
2007 | 1747 | 1 | 669 | 628 | 362 | 87 | 0 | 0 |
2006 | 1698 | 2 | 713 | 554 | 357 | 70 | 0 | 2 |
2005 | 1708 | 0 | 686 | 594 | 358 | 70 | 0 | 0 |
2004 | 1659 | 1 | 581 | 634 | 361 | 81 | 0 | 1 |
2003 | 1618 | 1 | 512 | 682 | 358 | 65 | 0 | 0 |
2002 | 1616 | 6 | 549 | 629 | 348 | 84 | 0 | 0 |
2001 | 1303 | 3 | 515 | 368 | 331 | 84 | 0 | 2 |
2000 | 1134 | 0 | 418 | 354 | 290 | 70 | 0 | 2 |
1999 | 898 | 2 | 323 | 176 | 324 | 73 | 0 | 0 |
1998 | 742 | 1 | 270 | 85 | 339 | 46 | 0 | 1 |
1997 | 301 | 1 | 91 | 145 | 16 | 48 | 0 | 0 |
1996 | 207 | 0 | 61 | 94 | 0 | 52 | 0 | 0 |
1995 | 178 | 2 | 66 | 69 | 0 | 41 | 0 | 0 |
1994 | 180 | 0 | 65 | 97 | 0 | 16 | 0 | 2 |
1993 | 56 | 2 | 20 | 30 | 0 | 1 | 0 | 3 |
Top MPEC Contributors
Last 1 year (2023-03-29 to 2024-03-28)
# | Observatory | Total MPECs |
---|---|---|
1 | F51 Pan-STARRS 1, Haleakala | 1791 |
2 | I52 Steward Observatory, Mt. Lemmon Station | 1769 |
3 | F52 Pan-STARRS 2, Haleakala | 1711 |
4 | G96 Mt. Lemmon Survey | 1679 |
5 | H21 Astronomical Research Observatory, Westfield | 1269 |
6 | L01 Visnjan Observatory, Tican | 871 |
7 | H01 Magdalena Ridge Observatory, Socorro | 692 |
8 | 807 Cerro Tololo Observatory, La Serena | 649 |
9 | 033 Karl Schwarzschild Observatory, Tautenburg | 599 |
10 | 703 Catalina Sky Survey | 560 |
Last 5 years (2019-03-30 to 2024-03-28)
# | Observatory | Total MPECs |
---|---|---|
1 | I52 Steward Observatory, Mt. Lemmon Station | 9482 |
2 | F51 Pan-STARRS 1, Haleakala | 8914 |
3 | G96 Mt. Lemmon Survey | 8858 |
4 | F52 Pan-STARRS 2, Haleakala | 6603 |
5 | H21 Astronomical Research Observatory, Westfield | 6006 |
6 | L01 Visnjan Observatory, Tican | 5801 |
7 | 033 Karl Schwarzschild Observatory, Tautenburg | 3740 |
8 | 807 Cerro Tololo Observatory, La Serena | 3726 |
9 | J95 Great Shefford | 2714 |
10 | 703 Catalina Sky Survey | 2567 |
All time (since 1993-09-19)
# | Observatory | Total MPECs |
---|---|---|
1 | G96 Mt. Lemmon Survey | 19889 |
2 | F51 Pan-STARRS 1, Haleakala | 17599 |
3 | I52 Steward Observatory, Mt. Lemmon Station | 13635 |
4 | H21 Astronomical Research Observatory, Westfield | 13037 |
5 | 291 LPL/Spacewatch II | 10604 |
6 | 703 Catalina Sky Survey | 9818 |
7 | J95 Great Shefford | 9137 |
8 | 807 Cerro Tololo Observatory, La Serena | 8121 |
9 | 568 Maunakea | 7946 |
10 | F52 Pan-STARRS 2, Haleakala | 7075 |
Top MPEC-ed Discoverers
Last 1 year (2023-03-29 to 2024-03-28)
# | Observatory | Total MPECs |
---|---|---|
1 | G96 Mt. Lemmon Survey | 955 |
2 | F52 Pan-STARRS 2, Haleakala | 644 |
3 | F51 Pan-STARRS 1, Haleakala | 626 |
4 | V00 Kitt Peak-Bok | 184 |
5 | 703 Catalina Sky Survey | 157 |
6 | W94 MAP, San Pedro de Atacama | 71 |
7 | K88 GINOP-KHK, Piszkesteto | 65 |
8 | 568 Maunakea | 63 |
9 | L51 MARGO, Nauchnyi | 56 |
10 | M22 ATLAS South Africa, Sutherland | 45 |
Last 5 years (2019-03-30 to 2024-03-28)
# | Observatory | Total MPECs |
---|---|---|
1 | G96 Mt. Lemmon Survey | 5731 |
2 | F51 Pan-STARRS 1, Haleakala | 3769 |
3 | F52 Pan-STARRS 2, Haleakala | 2465 |
4 | 703 Catalina Sky Survey | 695 |
5 | V00 Kitt Peak-Bok | 597 |
6 | T08 ATLAS-MLO, Mauna Loa | 358 |
7 | T05 ATLAS-HKO, Haleakala | 279 |
8 | I41 Palomar Mountain--ZTF | 222 |
9 | W94 MAP, San Pedro de Atacama | 214 |
10 | K88 GINOP-KHK, Piszkesteto | 205 |
All time (since 1993-09-19)
# | Observatory | Total MPECs |
---|---|---|
1 | G96 Mt. Lemmon Survey | 11785 |
2 | F51 Pan-STARRS 1, Haleakala | 8763 |
3 | 703 Catalina Sky Survey | 3659 |
4 | 704 Lincoln Laboratory ETS, New Mexico | 2642 |
5 | F52 Pan-STARRS 2, Haleakala | 2606 |
6 | 691 Steward Observatory, Kitt Peak-Spacewatch | 896 |
7 | 568 Maunakea | 738 |
8 | V00 Kitt Peak-Bok | 597 |
9 | T08 ATLAS-MLO, Mauna Loa | 511 |
10 | E12 Siding Spring Survey | 506 |
Top MPEC-ed Follow-up Observatories
Last 1 year (2023-03-29 to 2024-03-28)
# | Observatory | Total MPECs |
---|---|---|
1 | I52 Steward Observatory, Mt. Lemmon Station | 1429 |
2 | H21 Astronomical Research Observatory, Westfield | 1041 |
3 | L01 Visnjan Observatory, Tican | 818 |
4 | H01 Magdalena Ridge Observatory, Socorro | 650 |
5 | F51 Pan-STARRS 1, Haleakala | 506 |
6 | 033 Karl Schwarzschild Observatory, Tautenburg | 504 |
7 | F52 Pan-STARRS 2, Haleakala | 501 |
8 | 807 Cerro Tololo Observatory, La Serena | 459 |
9 | I93 St Pardon de Conques | 420 |
10 | 204 Schiaparelli Observatory | 374 |
Last 5 years (2019-03-30 to 2024-03-28)
# | Observatory | Total MPECs |
---|---|---|
1 | I52 Steward Observatory, Mt. Lemmon Station | 7813 |
2 | L01 Visnjan Observatory, Tican | 5359 |
3 | H21 Astronomical Research Observatory, Westfield | 4848 |
4 | 033 Karl Schwarzschild Observatory, Tautenburg | 3142 |
5 | 807 Cerro Tololo Observatory, La Serena | 2682 |
6 | I93 St Pardon de Conques | 2261 |
7 | F51 Pan-STARRS 1, Haleakala | 2146 |
8 | F52 Pan-STARRS 2, Haleakala | 2025 |
9 | J95 Great Shefford | 1986 |
10 | H01 Magdalena Ridge Observatory, Socorro | 1796 |
All time (since 1993-09-19)
# | Observatory | Total MPECs |
---|---|---|
1 | I52 Steward Observatory, Mt. Lemmon Station | 11213 |
2 | H21 Astronomical Research Observatory, Westfield | 9056 |
3 | L01 Visnjan Observatory, Tican | 6457 |
4 | J95 Great Shefford | 5893 |
5 | H01 Magdalena Ridge Observatory, Socorro | 5721 |
6 | 291 LPL/Spacewatch II | 5720 |
7 | 807 Cerro Tololo Observatory, La Serena | 4849 |
8 | 033 Karl Schwarzschild Observatory, Tautenburg | 4001 |
9 | 568 Maunakea | 3675 |
10 | H36 Sandlot Observatory, Scranton | 3558 |
Top MPEC-ed First Follow-up Observatories
Last 1 year (2023-03-29 to 2024-03-28)
# | Observatory | Total MPECs |
---|---|---|
1 | I52 Steward Observatory, Mt. Lemmon Station | 718 |
2 | H01 Magdalena Ridge Observatory, Socorro | 325 |
3 | F51 Pan-STARRS 1, Haleakala | 213 |
4 | F52 Pan-STARRS 2, Haleakala | 172 |
5 | L01 Visnjan Observatory, Tican | 132 |
6 | V06 Catalina Sky Survey-Kuiper | 132 |
7 | 807 Cerro Tololo Observatory, La Serena | 115 |
8 | T14 Canada-France-Hawaii Telescope, Maunakea | 114 |
9 | 033 Karl Schwarzschild Observatory, Tautenburg | 93 |
10 | X09 Deep Random Survey, Rio Hurtado | 86 |
Last 5 years (2019-03-30 to 2024-03-28)
# | Observatory | Total MPECs |
---|---|---|
1 | I52 Steward Observatory, Mt. Lemmon Station | 4448 |
2 | L01 Visnjan Observatory, Tican | 975 |
3 | H01 Magdalena Ridge Observatory, Socorro | 882 |
4 | 807 Cerro Tololo Observatory, La Serena | 863 |
5 | V06 Catalina Sky Survey-Kuiper | 722 |
6 | F51 Pan-STARRS 1, Haleakala | 669 |
7 | 568 Maunakea | 650 |
8 | 033 Karl Schwarzschild Observatory, Tautenburg | 632 |
9 | H21 Astronomical Research Observatory, Westfield | 612 |
10 | F52 Pan-STARRS 2, Haleakala | 594 |
All time (since 1993-09-19)
# | Observatory | Total MPECs |
---|---|---|
1 | I52 Steward Observatory, Mt. Lemmon Station | 5941 |
2 | H01 Magdalena Ridge Observatory, Socorro | 2817 |
3 | 291 LPL/Spacewatch II | 2354 |
4 | H21 Astronomical Research Observatory, Westfield | 1715 |
5 | 568 Maunakea | 1688 |
6 | 807 Cerro Tololo Observatory, La Serena | 1586 |
7 | J95 Great Shefford | 1354 |
8 | L01 Visnjan Observatory, Tican | 1129 |
9 | 033 Karl Schwarzschild Observatory, Tautenburg | 814 |
10 | V06 Catalina Sky Survey-Kuiper | 806 |
Top MPEC-ed Precoverers
Last 1 year (2023-03-29 to 2024-03-28)
# | Observatory | Total MPECs |
---|---|---|
1 | F52 Pan-STARRS 2, Haleakala | 209 |
2 | F51 Pan-STARRS 1, Haleakala | 192 |
3 | G96 Mt. Lemmon Survey | 133 |
4 | 703 Catalina Sky Survey | 61 |
5 | I41 Palomar Mountain--ZTF | 14 |
6 | T14 Canada-France-Hawaii Telescope, Maunakea | 8 |
7 | W84 Cerro Tololo-DECam | 7 |
8 | T05 ATLAS-HKO, Haleakala | 6 |
9 | W68 ATLAS Chile, Rio Hurtado | 6 |
10 | Q62 iTelescope Observatory, Siding Spring | 6 |
Last 5 years (2019-03-30 to 2024-03-28)
# | Observatory | Total MPECs |
---|---|---|
1 | F51 Pan-STARRS 1, Haleakala | 1015 |
2 | F52 Pan-STARRS 2, Haleakala | 957 |
3 | G96 Mt. Lemmon Survey | 534 |
4 | 703 Catalina Sky Survey | 259 |
5 | I41 Palomar Mountain--ZTF | 72 |
6 | K88 GINOP-KHK, Piszkesteto | 29 |
7 | W84 Cerro Tololo-DECam | 19 |
8 | T05 ATLAS-HKO, Haleakala | 15 |
9 | 568 Maunakea | 14 |
10 | V00 Kitt Peak-Bok | 14 |
All time (since 1993-09-19)
# | Observatory | Total MPECs |
---|---|---|
1 | F51 Pan-STARRS 1, Haleakala | 1396 |
2 | F52 Pan-STARRS 2, Haleakala | 1040 |
3 | G96 Mt. Lemmon Survey | 598 |
4 | 703 Catalina Sky Survey | 309 |
5 | I41 Palomar Mountain--ZTF | 87 |
6 | 704 Lincoln Laboratory ETS, New Mexico | 75 |
7 | 691 Steward Observatory, Kitt Peak-Spacewatch | 48 |
8 | K88 GINOP-KHK, Piszkesteto | 30 |
9 | 699 Lowell Observatory-LONEOS | 28 |
10 | W84 Cerro Tololo-DECam | 24 |