689 U.S. Naval Observatory, Flagstaff

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Graphs

Yearly Breakdown of MPEC Types

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 P/R/FU DOU List Update Retraction Other Follow-Up First Follow-Up
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 2 0 0 0 2 0 0 0 0 0
2013 0 0 0 0 0 0 0 0 0 0
2012 2 0 0 1 1 0 0 0 0 0
2011 1 0 0 0 1 0 0 0 0 0
2010 0 0 0 0 0 0 0 0 0 0
2009 6 0 0 0 6 0 0 0 0 0
2008 1 0 0 0 1 0 0 0 0 0
2007 5 0 0 0 3 0 0 0 1 1
2006 0 0 0 0 0 0 0 0 0 0
2005 0 0 0 0 0 0 0 0 0 0
2004 1 0 0 0 1 0 0 0 0 0
2003 3 0 0 0 3 0 0 0 0 0
2002 3 0 0 0 3 0 0 0 0 0
2001 1 0 0 0 1 0 0 0 0 0
2000 1 0 0 0 1 0 0 0 0 0
1999 1 0 0 0 1 0 0 0 0 0
1998 4 0 0 0 4 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 1 0 0 0 0 0 0 0 0 1
1994 0 0 0 0 0 0 0 0 0 0
1993 0 0 0 0 0 0 0 0 0 0

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List of Individual MPECs

Index Name Date/Time Discoverer First-responding Confirmer Object Type Search Archival Image
1 MPEC 2014-M44 DAILY ORBIT UPDATE (2014 JUNE 26 UT) 2014-06-26 12:02:00
2 MPEC 2014-L37 DAILY ORBIT UPDATE (2014 JUNE 7 UT) 2014-06-07 12:02:00
3 MPEC 2012-O25 OBSERVATIONS AND ORBITS OF COMETS 2012-07-23 01:21:00 Comet CATCH
4 MPEC 2012-O15 DAILY ORBIT UPDATE (2012 JULY 21 UT) 2012-07-21 06:02:00
5 MPEC 2011-K10 DAILY ORBIT UPDATE (2011 MAY 20 UT) 2011-05-20 07:06:00
6 MPEC 2009-X20 DAILY ORBIT UPDATE (2009 DEC. 8 UT) 2009-12-08 07:08:00
7 MPEC 2009-T40 DAILY ORBIT UPDATE (2009 OCT. 13 UT) 2009-10-13 06:08:00
8 MPEC 2009-R01 DAILY ORBIT UPDATE (2009 SEPT. 1 UT) 2009-09-01 06:08:00
9 MPEC 2009-P49 DAILY ORBIT UPDATE (2009 AUG. 15 UT) 2009-08-15 06:06:00
10 MPEC 2009-P03 DAILY ORBIT UPDATE (2009 AUG. 1 UT) 2009-08-01 06:08:00
11 MPEC 2009-D34 DAILY ORBIT UPDATE (2009 FEB. 20 UT) 2009-02-20 07:07:00
12 MPEC 2008-M21 DAILY ORBIT UPDATE (2008 JUNE 20 UT) 2008-06-20 06:06:00
13 MPEC 2007-W42 DAILY ORBIT UPDATE (2007 NOV. 20 UT) 2007-11-20 07:10:00
14 MPEC 2007-W41 2007 WY3 2007-11-19 18:12:00 ✓ NEAl18 CATCH
15 MPEC 2007-W21 2007 VW266 2007-11-19 12:13:00 Unusual CATCH
16 MPEC 2007-W19 DAILY ORBIT UPDATE (2007 NOV. 19 UT) 2007-11-19 07:15:00
17 MPEC 2007-W18 DAILY ORBIT UPDATE (2007 NOV. 18 UT) 2007-11-18 07:15:00
18 MPEC 2004-T01 DAILY ORBIT UPDATE (2004 OCT. 1 UT) 2004-10-01 06:10:00
19 MPEC 2003-T08 DAILY ORBIT UPDATE (2003 OCT. 2 UT) 2003-10-02 06:07:00
20 MPEC 2003-E10 DAILY ORBIT UPDATE (2003 MAR. 4 UT) 2003-03-04 07:07:00
21 MPEC 2003-B04 DAILY ORBIT UPDATE (2003 JAN. 17 UT) 2003-01-17 07:10:00
22 MPEC 2002-Q42 DAILY ORBIT UPDATE (2002 AUG. 29 UT) 2002-08-29 06:07:00
23 MPEC 2002-O36 DAILY ORBIT UPDATE (2002 JULY 23 UT) 2002-07-23 06:07:00
24 MPEC 2002-B09 DAILY ORBIT UPDATE (2002 JAN. 18 UT) 2002-01-18 07:10:00
25 MPEC 2001-F27 DAILY ORBIT UPDATE (2001 MAR. 22 UT) 2001-03-22 07:18:00
26 MPEC 2000-F08 DAILY ORBIT UPDATE (2000 MAR. 17 UT) 2000-03-17 07:16:00
27 MPEC 1999-A12 DAILY ORBIT UPDATE (1999 JAN. 9 UT) 1999-01-09 06:59:00
28 MPEC 1998-Y36 DAILY ORBIT UPDATE (1998 DEC. 29 UT) 1998-12-29 07:06:00
29 MPEC 1998-U32 DAILY ORBIT UPDATE (1998 OCT. 31 UT) 1998-10-31 07:09:00
30 MPEC 1998-R22 DAILY ORBIT UPDATE (1998 SEPT. 11 UT) 1998-09-11 06:00:00
31 MPEC 1998-O22 DAILY ORBIT UPDATE (1998 JULY 29 UT) 1998-07-29 06:07:00
32 MPEC 1995-E11 1994 TB 1995-03-10 15:47:00 ✓ Unusual CATCH

List of Observers

Observers Count
C. Dahn 6
C. E. Albert, J. Munn 6
H. Harris, T. Tilleman 229

List of Measurers

Measurers Count
A. Monet, H. Harris 6
E. E. Arthur, N. A. Bailey, J. L. Carlson, A. P. Haviland, J. A. Larsen, W. C. Navarro, J. N. Rosa, A. Zarco 3
J. A. Larsen, E. E. Arthur, N. A. Bailey, J. L. Carlson, A. P. Haviland, W. C. Navarro, J. N. Rosa, A. Zarco 3
H. Harris 229
Facilities Count
1.5-m astrometric reflector 6
1.55-m f/9.8 reflector + CCD 6
1.55-m f/10.0 reflector + CCD 229