463 Sommers-Bausch Observatory, Boulder

Last update: UTC 2026-03-02 05:53:28

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

Breakdown by Observers

Breakdown by Measurers

Breakdown by Facilities

Breakdown by Objects

Annual Breakdown

Weekly Breakdown

Hourly Breakdown

Tables

Yearly Breakdown of MPEC Types

Year Total MPECs Editorial Discovery Orbit Update DOU List Update Retraction Other Follow-Up First Follow-Up
2026 0 0 0 0 0 0 0 0 0 0
2025 3 0 0 0 3 0 0 0 0 0
2024 1 0 0 0 1 0 0 0 0 0
2023 2 0 0 0 2 0 0 0 0 0
2022 1 0 0 0 1 0 0 0 0 0
2021 1 0 0 0 1 0 0 0 0 0
2020 2 0 0 0 2 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 1 0 0 0 1 0 0 0 0 0
2016 2 0 0 0 2 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 2016-O412 DAILY ORBIT UPDATE (2016 JULY 31 UT) 2016-07-31 12:03:00
2 MPEC 2016-P110 DAILY ORBIT UPDATE (2016 AUG. 13 UT) 2016-08-13 12:05:00
3 MPEC 2017-P08 DAILY ORBIT UPDATE (2017 AUG. 2 UT) 2017-08-02 12:03:00
4 MPEC 2020-O85 DAILY ORBIT UPDATE (2020 July 24) 2020-07-24 12:22:00
5 MPEC 2020-O113 DAILY ORBIT UPDATE (2020 July 26) 2020-07-26 12:24:00
6 MPEC 2021-J210 DAILY ORBIT UPDATE (2021 May 14) 2021-05-14 12:10:00
7 MPEC 2022-O17 DAILY ORBIT UPDATE (2022 July 21) 2022-07-21 12:01:00
8 MPEC 2023-O40 DAILY ORBIT UPDATE (2023 July 20) 2023-07-20 12:07:00
9 MPEC 2023-O48 DAILY ORBIT UPDATE (2023 July 21) 2023-07-21 12:08:00
10 MPEC 2024-O09 DAILY ORBIT UPDATE (2024 July 17) 2024-07-17 12:03:00
11 MPEC 2025-O82 DAILY ORBIT UPDATE (2025 July 25) 2025-07-25 12:14:00
12 MPEC 2025-X72 DAILY ORBIT UPDATE (2025 December 9) 2025-12-09 12:17:00
13 MPEC 2025-X86 DAILY ORBIT UPDATE (2025 December 10) 2025-12-10 12:16:00

Objects Observed by This Station

Object Observations Discoveries First Obs Last Obs Magnitude MPECs
01866 39655 0 2016-07-08 2024-07-11 17.2 1133
01627 26847 0 2023-06-21 2023-07-12 14.0 1413
07889 12100 0 2015-07-16 2025-07-11 N/A 550
01980 11718 0 2017-07-01 2017-07-24 17.9 837
F4244 8280 0 2016-07-07 2023-07-10 21.7 360
04183 7070 0 2015-07-12 2015-07-28 16.6 707
04055 6321 0 2015-07-19 2020-07-10 18.8 903
03102 6315 0 2022-06-28 2022-07-17 18.5 421
16960 5866 0 2025-06-30 2025-07-13 19.7 419
66251 5784 0 2022-06-28 2022-07-14 15.6 482
06569 5412 0 2022-06-22 2022-07-12 N/A 451
J0166 4950 0 2017-07-01 2017-07-23 20.3 330
20460 3542 0 2017-06-29 2017-07-07 20.8 322
Q3976 3171 0 2025-06-27 2025-07-11 N/A 151
K11E78D 2720 0 2023-06-25 2023-07-17 21.0 136
H5189 2604 0 2023-06-21 2023-07-14 16.5 186
27031 2584 0 2023-06-21 2023-07-17 17.0 152
m1032 2460 0 2024-06-24 2024-07-11 17.9 123
b7732 2394 0 2022-06-22 2022-07-17 20.5 114
85275 2010 0 2020-07-10 2020-07-21 19.1 402
D8846 1963 0 2017-07-05 2017-07-24 20.6 151
07482 1758 0 2022-06-23 2022-07-17 18.3 293
P7838 1573 0 2016-07-14 2016-07-27 22.0 121
E2561 1488 0 2017-07-05 2017-07-23 17.0 124
N6716 1230 0 2023-06-21 2023-07-12 20.6 82
10150 1060 0 2016-07-12 2016-07-19 21.4 212
40329 824 0 2016-07-14 2016-07-28 19.3 103
06063 805 0 2017-07-10 2017-07-18 17.2 161
u0563 504 0 2022-06-28 2022-07-12 21.5 56
g0302 483 0 2020-07-10 2020-07-10 16.2 161
l7885 249 0 2020-07-09 2020-07-10 17.2 83
Y8400 230 0 2015-07-30 2015-07-30 20.5 230
k8448 73 0 2016-07-18 2016-07-18 22.0 73

List of Observers

Observer Group Total MPECs
Unknown 13
Individual Observer Total MPECs
Unknown 13

List of Measurers

Measurer Group Total MPECs
Unknown 13
Individual Measurer Total MPECs
Unknown 13

List of Facilities

Facilities Count
Unknown 13