Legacy Survey of Space and Time (LSST)

X05

Where is this observatory?

Graphs

Yearly Breakdown of MPEC Types

Term definition: Editorial - Editorial MPECs associated with this station.
Discovery - MPECs associated with discovery made by this station.
OrbitUpdate - MPECs associated with orbit updates involving observations made by this station. Typically, these are recoveries of single-opposition objects.
DOU - Daily Orbit Update MPECs involving observations made by this station.
ListUpdate - MPECs associated with list updates involving observations made by this station. This category has largely been retired since 2012.
Retraction - Retracted MPECs involving observations made by this station.
Followup - MPECs associated with follow-up observations made by this station to an object discovered elsewhere.
FirstFollowup - MPECs associated with follow-up observations made by this station to an object discovered elsewhere, with this station being the first station to follow-up.
Other - MPECs that do not fit into categories listed above and involve observations made by this station.

Yearly Breakdown of Discovery Object Types

Yearly Breakdown of Orbit Update Object Types

Tables

Yearly Breakdown of MPEC Types

Year Total MPECs Editorial Discovery P/R/FU DOU List Update Retraction Other Follow-Up First Follow-Up
2026 36 0 4 8 23 0 0 0 0 1
2025 5 0 3 0 1 0 0 0 0 1
2024 0 0 0 0 0 0 0 0 0 0
2023 0 0 0 0 0 0 0 0 0 0
2022 0 0 0 0 0 0 0 0 0 0
2021 0 0 0 0 0 0 0 0 0 0
2020 0 0 0 0 0 0 0 0 0 0
2019 0 0 0 0 0 0 0 0 0 0
2018 0 0 0 0 0 0 0 0 0 0
2017 0 0 0 0 0 0 0 0 0 0
2016 0 0 0 0 0 0 0 0 0 0
2015 0 0 0 0 0 0 0 0 0 0
2014 0 0 0 0 0 0 0 0 0 0
2013 0 0 0 0 0 0 0 0 0 0
2012 0 0 0 0 0 0 0 0 0 0
2011 0 0 0 0 0 0 0 0 0 0
2010 0 0 0 0 0 0 0 0 0 0
2009 0 0 0 0 0 0 0 0 0 0
2008 0 0 0 0 0 0 0 0 0 0
2007 0 0 0 0 0 0 0 0 0 0
2006 0 0 0 0 0 0 0 0 0 0
2005 0 0 0 0 0 0 0 0 0 0
2004 0 0 0 0 0 0 0 0 0 0
2003 0 0 0 0 0 0 0 0 0 0
2002 0 0 0 0 0 0 0 0 0 0
2001 0 0 0 0 0 0 0 0 0 0
2000 0 0 0 0 0 0 0 0 0 0
1999 0 0 0 0 0 0 0 0 0 0
1998 0 0 0 0 0 0 0 0 0 0
1997 0 0 0 0 0 0 0 0 0 0
1996 0 0 0 0 0 0 0 0 0 0
1995 0 0 0 0 0 0 0 0 0 0
1994 0 0 0 0 0 0 0 0 0 0
1993 0 0 0 0 0 0 0 0 0 0

List of Individual MPECs

Index Name Date/Time Discoverer First-responding Confirmer Object Type Search Archival Image
1 MPEC 2026-J10 DAILY ORBIT UPDATE (2026 May 5) 2026-05-05 12:09:00
2 MPEC 2026-H126 DAILY ORBIT UPDATE (2026 April 24) 2026-04-24 12:10:00
3 MPEC 2026-Q47 DAILY ORBIT UPDATE (2026 August 20) 2026-08-20 12:36:00
4 MPEC 2026-C27 DAILY ORBIT UPDATE (2026 February 7) 2026-02-07 12:16:00
5 MPEC 2026-Q40 DAILY ORBIT UPDATE (2026 August 19) 2026-08-19 12:37:00
6 MPEC 2026-H99 DAILY ORBIT UPDATE (2026 April 22) 2026-04-22 12:04:00
7 MPEC 2026-J01 DAILY ORBIT UPDATE (2026 May 1) 2026-05-01 12:10:00
8 MPEC 2026-H173 DAILY ORBIT UPDATE (2026 April 28) 2026-04-28 12:09:00
9 MPEC 2026-P16 DAILY ORBIT UPDATE (2026 August 4) 2026-08-04 12:27:00
10 MPEC 2026-C16 DAILY ORBIT UPDATE (2026 February 6) 2026-02-06 12:10:00
11 MPEC 2025-V43 DAILY ORBIT UPDATE (2025 November 6) 2025-11-06 15:07:00
12 MPEC 2026-H141 DAILY ORBIT UPDATE (2026 April 25) 2026-04-25 12:07:00
13 MPEC 2026-Q94 DAILY ORBIT UPDATE (2026 August 25) 2026-08-25 12:39:00
14 MPEC 2026-J11 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2026-05-05 15:36:00 Comet CATCH
15 MPEC 2025-R50 2025 NZ8 2025-09-05 20:26:00 ✓ NEA (H>22) CATCH
16 MPEC 2026-Q101 DAILY ORBIT UPDATE (2026 August 26) 2026-08-26 12:55:00
17 MPEC 2026-O26 2025 NE203 2026-07-19 21:57:00 ✓ Unusual CATCH
18 MPEC 2025-R51 2025 NA9 2025-09-05 20:29:00 ✓ NEA (H>22) CATCH
19 MPEC 2026-C09 DAILY ORBIT UPDATE (2026 February 4) 2026-02-04 12:09:00
20 MPEC 2026-D197 2026 DO14 2026-02-28 13:49:00 ✓ NEA (H>22) CATCH
21 MPEC 2026-E18 DAILY ORBIT UPDATE (2026 March 3) 2026-03-03 12:18:00
22 MPEC 2026-P47 DAILY ORBIT UPDATE (2026 August 7) 2026-08-07 12:29:00
23 MPEC 2026-Q95 COMET P/2026 N2 2026-08-25 14:15:00 ✓ Comet CATCH
24 MPEC 2026-L53 COMET P/1999 RO28 = P/2025 N3 (LONEOS) 2026-06-09 20:00:00 Comet CATCH
25 MPEC 2026-L10 DAILY ORBIT UPDATE (2026 June 5) 2026-06-05 12:28:00
26 MPEC 2026-G12 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2026-04-03 15:42:00 Comet CATCH
27 MPEC 2025-R53 2025 OD43 2025-09-05 20:45:00 ✓ NEA (H>22) CATCH
28 MPEC 2026-C90 DAILY ORBIT UPDATE (2026 February 13) 2026-02-13 12:12:00
29 MPEC 2026-N37 COMET P/2005 S2 = P/2025 OZ695 (Skiff) 2026-07-08 17:24:00 Comet CATCH
30 MPEC 2026-L07 DAILY ORBIT UPDATE (2026 June 4) 2026-06-04 12:25:00
31 MPEC 2026-P86 DAILY ORBIT UPDATE (2026 August 11) 2026-08-11 12:30:00
32 MPEC 2026-Q107 2022 YB4 2026-08-26 17:50:00 PHAg18 CATCH
33 MPEC 2026-J06 DAILY ORBIT UPDATE (2026 May 4) 2026-05-04 12:08:00
34 MPEC 2026-J03 DAILY ORBIT UPDATE (2026 May 2) 2026-05-02 12:10:00
35 MPEC 2026-F270 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2026-03-30 19:18:00 Comet CATCH
36 MPEC 2026-H170 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2026-04-27 20:30:00 Comet CATCH
37 MPEC 2026-Q106 2022 MV6 2026-08-26 17:46:00 NEA (18>H>22) CATCH
38 MPEC 2026-O12 2025 NR546 2026-07-17 16:18:00 ✓ NEA (18>H>22) CATCH
39 MPEC 2026-C05 DAILY ORBIT UPDATE (2026 February 3) 2026-02-03 12:07:00
40 MPEC 2025-R52 2025 MP99 2025-09-05 20:39:00 ✓ NEA (H>22) CATCH
41 MPEC 2026-M111 2015 DR370 2026-06-26 17:15:00 ✓ TNO CATCH

List of Observers

Observers Count
P. H. Bernardinelli, A. Heinze, M. Holman, M. Juric, J. Kurlander, J. Moeyens, K. Napier, E. Nourbakhsh 3
Rubin Observatory 1
Unknown 37

List of Measurers

Measurers Count
C. O. Chandler, J. Murtagh, P. H. Bernardinelli, A. Heinze, M. Juric, J. Kurlander, J. Moeyens, E. Nourbakhsh 1
P. H. Bernardinelli, A. Heinze, M. Holman, M. Juric, J. Kurlander, J. Moeyens, K. Napier, E. Nourbakhsh 5
P. H. Bernardinelli, A. Heinze, M. Juric, J. Kurlander, J. Moeyens, E. Nourbakhsh 7
Unknown 28

List of Facilities

Facilities Count
8.4-m 8.4-m Simonyi Survey Telescope + CCD, 8.4-m f/1.234 Modified Paul-Baker + CCD 1
8.4-m f/1.234 Modified Paul-Baker + CCD 15
Unknown 25