H23 Pear Tree Observatory, Valparaiso

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

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 2 0 0 1 1 0 0 0 0 0
2023 4 0 0 2 2 0 0 0 0 0
2022 0 0 0 0 0 0 0 0 0 0
2021 3 0 0 2 1 0 0 0 0 0
2020 1 0 0 0 1 0 0 0 0 0
2019 0 0 0 0 0 0 0 0 0 0
2018 1 0 0 0 1 0 0 0 0 0
2017 3 0 0 0 3 0 0 0 0 0
2016 0 0 0 0 0 0 0 0 0 0
2015 1 0 0 1 0 0 0 0 0 0
2014 0 0 0 0 0 0 0 0 0 0
2013 19 0 0 12 7 0 0 0 0 0
2012 45 0 0 15 30 0 0 0 0 0
2011 26 0 0 7 19 0 0 0 0 0
2010 32 0 0 14 18 0 0 0 0 0
2009 10 0 0 3 7 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 2024-G193 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-04-13 23:03:00 Comet CATCH
2 MPEC 2024-G134 DAILY ORBIT UPDATE (2024 April 10) 2024-04-10 12:17:00
3 MPEC 2023-S206 DAILY ORBIT UPDATE (2023 September 25) 2023-09-25 12:25:00
4 MPEC 2023-P20 DAILY ORBIT UPDATE (2023 August 5) 2023-08-05 12:01:00
5 MPEC 2023-F81 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-03-21 02:27:00 Comet CATCH
6 MPEC 2023-B57 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-01-21 09:44:00 Comet CATCH
7 MPEC 2021-Y10 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2021-12-17 09:49:00 Comet CATCH
8 MPEC 2021-G187 DAILY ORBIT UPDATE (2021 April 13) 2021-04-13 15:14:00
9 MPEC 2021-B143 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2021-01-31 04:56:00 Comet CATCH
10 MPEC 2020-E15 DAILY ORBIT UPDATE (2020 March 5) 2020-03-05 12:04:00
11 MPEC 2018-B81 DAILY ORBIT UPDATE (2018 JAN. 21 UT) 2018-01-21 13:05:00
12 MPEC 2017-Y27 DAILY ORBIT UPDATE (2017 DEC. 18 UT) 2017-12-18 13:05:00
13 MPEC 2017-S85 DAILY ORBIT UPDATE (2017 SEPT. 20 UT) 2017-09-20 12:04:00
14 MPEC 2017-E29 DAILY ORBIT UPDATE (2017 MAR. 3 UT) 2017-03-03 13:05:00
15 MPEC 2015-S97 OBSERVATIONS AND ORBITS OF COMETS 2015-09-28 10:17:00 Comet CATCH
16 MPEC 2013-Y16 DAILY ORBIT UPDATE (2013 DEC. 21 UT) 2013-12-21 14:02:00
17 MPEC 2013-X21 DAILY ORBIT UPDATE (2013 DEC. 3 UT) 2013-12-03 17:32:00
18 MPEC 2013-W01 OBSERVATIONS AND ORBITS OF COMETS 2013-11-16 06:59:00 Comet CATCH
19 MPEC 2013-V48 OBSERVATIONS AND ORBITS OF COMETS 2013-11-09 03:54:00 Comet CATCH
20 MPEC 2013-J25 OBSERVATIONS AND ORBITS OF COMETS 2013-05-07 22:36:00 Comet CATCH
21 MPEC 2013-H38 OBSERVATIONS AND ORBITS OF COMETS 2013-04-23 19:57:00 Comet CATCH
22 MPEC 2013-G35 DAILY ORBIT UPDATE (2013 APR. 10 UT) 2013-04-10 06:03:00
23 MPEC 2013-G31 OBSERVATIONS AND ORBITS OF COMETS 2013-04-09 00:40:00 Comet CATCH
24 MPEC 2013-F47 OBSERVATIONS AND ORBITS OF COMETS 2013-03-25 03:06:00 Comet CATCH
25 MPEC 2013-F40 DAILY ORBIT UPDATE (2013 MAR. 22 UT) 2013-03-22 06:06:00
26 MPEC 2013-F20 OBSERVATIONS AND ORBITS OF COMETS 2013-03-18 22:09:00 Comet CATCH
27 MPEC 2013-E40 OBSERVATIONS AND ORBITS OF COMETS 2013-03-09 22:21:00 Comet CATCH
28 MPEC 2013-E30 DAILY ORBIT UPDATE (2013 MAR. 8 UT) 2013-03-08 06:05:00
29 MPEC 2013-E20 DAILY ORBIT UPDATE (2013 MAR. 6 UT) 2013-03-06 06:05:00
30 MPEC 2013-E06 OBSERVATIONS AND ORBITS OF COMETS 2013-03-03 01:00:00 Comet CATCH
31 MPEC 2013-D50 OBSERVATIONS AND ORBITS OF COMETS 2013-02-23 13:31:00 Comet CATCH
32 MPEC 2013-D01 DAILY ORBIT UPDATE (2013 FEB. 16 UT) 2013-02-16 06:03:00
33 MPEC 2013-C52 OBSERVATIONS AND ORBITS OF COMETS 2013-02-12 02:17:00 Comet CATCH
34 MPEC 2013-A85 OBSERVATIONS AND ORBITS OF COMETS 2013-01-14 00:29:00 Comet CATCH
35 MPEC 2012-Y27 DAILY ORBIT UPDATE (2012 DEC. 24 UT) 2012-12-24 06:05:00
36 MPEC 2012-Y19 DAILY ORBIT UPDATE (2012 DEC. 22 UT) 2012-12-22 06:04:00
37 MPEC 2012-X89 DAILY ORBIT UPDATE (2012 DEC. 14 UT) 2012-12-14 06:04:00
38 MPEC 2012-X53 OBSERVATIONS AND ORBITS OF COMETS 2012-12-11 00:21:00 Comet CATCH
39 MPEC 2012-W54 OBSERVATIONS AND ORBITS OF COMETS 2012-11-27 21:00:00 Comet CATCH
40 MPEC 2012-W38 DAILY ORBIT UPDATE (2012 NOV. 23 UT) 2012-11-23 06:06:00
41 MPEC 2012-V101 OBSERVATIONS AND ORBITS OF COMETS 2012-11-15 22:38:00 Comet CATCH
42 MPEC 2012-V93 DAILY ORBIT UPDATE (2012 NOV. 15 UT) 2012-11-15 06:05:00
43 MPEC 2012-V04 DAILY ORBIT UPDATE (2012 NOV. 3 UT) 2012-11-03 06:02:00
44 MPEC 2012-U109 OBSERVATIONS AND ORBITS OF COMETS 2012-10-26 20:51:00 Comet CATCH
45 MPEC 2012-U103 DAILY ORBIT UPDATE (2012 OCT. 26 UT) 2012-10-26 06:09:00
46 MPEC 2012-U50 DAILY ORBIT UPDATE (2012 OCT. 20 UT) 2012-10-20 06:07:00 ✓
47 MPEC 2012-T73 OBSERVATIONS AND ORBITS OF COMETS 2012-10-12 21:36:00 Comet CATCH
48 MPEC 2012-T09 DAILY ORBIT UPDATE (2012 OCT. 4 UT) 2012-10-04 06:03:00
49 MPEC 2012-S31 OBSERVATIONS AND ORBITS OF COMETS 2012-09-18 20:22:00 Comet CATCH
50 MPEC 2012-R17 DAILY ORBIT UPDATE (2012 SEPT. 10 UT) 2012-09-10 06:02:00
51 MPEC 2012-R12 DAILY ORBIT UPDATE (2012 SEPT. 8 UT) 2012-09-08 06:02:00
52 MPEC 2012-N02 OBSERVATIONS AND ORBITS OF COMETS 2012-07-01 16:59:00 Comet CATCH
53 MPEC 2012-M33 OBSERVATIONS AND ORBITS OF COMETS 2012-06-22 16:34:00 Comet CATCH
54 MPEC 2012-M32 DAILY ORBIT UPDATE (2012 JUNE 22 UT) 2012-06-22 06:02:00
55 MPEC 2012-M12 DAILY ORBIT UPDATE (2012 JUNE 18 UT) 2012-06-18 06:02:00
56 MPEC 2012-L10 DAILY ORBIT UPDATE (2012 JUNE 4 UT) 2012-06-04 06:03:00
57 MPEC 2012-L04 OBSERVATIONS AND ORBITS OF COMETS 2012-06-02 04:38:00 Comet CATCH
58 MPEC 2012-K56 OBSERVATIONS AND ORBITS OF COMETS 2012-05-25 22:03:00 Comet CATCH
59 MPEC 2012-J18 DAILY ORBIT UPDATE (2012 MAY 6 UT) 2012-05-06 06:04:00
60 MPEC 2012-H90 OBSERVATIONS AND ORBITS OF COMETS 2012-04-29 20:07:00 Comet CATCH
61 MPEC 2012-H75 DAILY ORBIT UPDATE (2012 APR. 27 UT) 2012-04-27 06:03:00
62 MPEC 2012-H42 OBSERVATIONS AND ORBITS OF COMETS 2012-04-21 16:07:00 Comet CATCH
63 MPEC 2012-H36 DAILY ORBIT UPDATE (2012 APR. 21 UT) 2012-04-21 06:03:00
64 MPEC 2012-H01 DAILY ORBIT UPDATE (2012 APR. 16 UT) 2012-04-16 06:03:00
65 MPEC 2012-G45 OBSERVATIONS AND ORBITS OF COMETS 2012-04-14 20:04:00 Comet CATCH
66 MPEC 2012-G29 DAILY ORBIT UPDATE (2012 APR. 11 UT) 2012-04-11 06:02:00
67 MPEC 2012-G25 DAILY ORBIT UPDATE (2012 APR. 8 UT) 2012-04-08 06:01:00
68 MPEC 2012-G20 DAILY ORBIT UPDATE (2012 APR. 4 UT) 2012-04-04 06:03:00
69 MPEC 2012-G18 OBSERVATIONS AND ORBITS OF COMETS 2012-04-03 20:37:00 Comet CATCH
70 MPEC 2012-F105 DAILY ORBIT UPDATE (2012 MAR. 29 UT) 2012-03-29 06:03:00
71 MPEC 2012-F95 DAILY ORBIT UPDATE (2012 MAR. 28 UT) 2012-03-28 06:03:00
72 MPEC 2012-F93 DAILY ORBIT UPDATE (2012 MAR. 27 UT) 2012-03-27 06:03:00
73 MPEC 2012-F89 DAILY ORBIT UPDATE (2012 MAR. 26 UT) 2012-03-26 06:03:00
74 MPEC 2012-D44 DAILY ORBIT UPDATE (2012 FEB. 23 UT) 2012-02-23 06:03:00
75 MPEC 2012-D37 DAILY ORBIT UPDATE (2012 FEB. 21 UT) 2012-02-21 06:03:00
76 MPEC 2012-D09 OBSERVATIONS AND ORBITS OF COMETS 2012-02-17 18:06:00 Comet CATCH
77 MPEC 2012-B99 DAILY ORBIT UPDATE (2012 JAN. 30 UT) 2012-01-30 06:05:00
78 MPEC 2012-B32 DAILY ORBIT UPDATE (2012 JAN. 21 UT) 2012-01-21 06:04:00
79 MPEC 2012-B02 DAILY ORBIT UPDATE (2012 JAN. 17 UT) 2012-01-17 06:03:00
80 MPEC 2011-U61 DAILY ORBIT UPDATE (2011 OCT. 24 UT) 2011-10-24 06:03:00
81 MPEC 2011-U45 DAILY ORBIT UPDATE (2011 OCT. 23 UT) 2011-10-23 06:03:00
82 MPEC 2011-U42 OBSERVATIONS AND ORBITS OF COMETS 2011-10-21 16:51:00 Comet CATCH
83 MPEC 2011-U05 DAILY ORBIT UPDATE (2011 OCT. 17 UT) 2011-10-17 06:02:00
84 MPEC 2011-S107 OBSERVATIONS AND ORBITS OF COMETS 2011-09-30 18:37:00 Comet CATCH
85 MPEC 2011-S08 DAILY ORBIT UPDATE (2011 SEPT. 19 UT) 2011-09-19 06:02:00
86 MPEC 2011-R41 DAILY ORBIT UPDATE (2011 SEPT. 12 UT) 2011-09-12 06:07:00
87 MPEC 2011-R11 OBSERVATIONS AND ORBITS OF COMETS 2011-09-02 17:54:00 Comet CATCH
88 MPEC 2011-Q01 DAILY ORBIT UPDATE (2011 AUG. 16 UT) 2011-08-16 06:01:00
89 MPEC 2011-P23 OBSERVATIONS AND ORBITS OF COMETS 2011-08-05 17:04:00 Comet CATCH
90 MPEC 2011-P01 DAILY ORBIT UPDATE (2011 AUG. 1 UT) 2011-08-01 06:06:00
91 MPEC 2011-O27 DAILY ORBIT UPDATE (2011 JULY 24 UT) 2011-07-24 07:08:00
92 MPEC 2011-N38 DAILY ORBIT UPDATE (2011 JULY 10 UT) 2011-07-10 07:07:00
93 MPEC 2011-M15 DAILY ORBIT UPDATE (2011 JUNE 20 UT) 2011-06-20 07:05:00
94 MPEC 2011-L11 OBSERVATIONS AND ORBITS OF COMETS 2011-06-02 18:04:00 Comet CATCH
95 MPEC 2011-K13 OBSERVATIONS AND ORBITS OF COMETS 2011-05-21 16:00:00 Comet CATCH
96 MPEC 2011-K01 DAILY ORBIT UPDATE (2011 MAY 16 UT) 2011-05-16 07:09:00
97 MPEC 2011-J49 DAILY ORBIT UPDATE (2011 MAY 12 UT) 2011-05-12 07:09:00
98 MPEC 2011-J44 DAILY ORBIT UPDATE (2011 MAY 11 UT) 2011-05-11 07:10:00
99 MPEC 2011-J07 DAILY ORBIT UPDATE (2011 MAY 3 UT) 2011-05-03 07:07:00
100 MPEC 2011-H10 DAILY ORBIT UPDATE (2011 APR. 18 UT) 2011-04-18 07:10:00
101 MPEC 2011-G58 OBSERVATIONS AND ORBITS OF COMETS 2011-04-08 16:46:00 Comet CATCH
102 MPEC 2011-F19 DAILY ORBIT UPDATE (2011 MAR. 23 UT) 2011-03-23 07:07:00
103 MPEC 2011-E80 DAILY ORBIT UPDATE (2011 MAR. 14 UT) 2011-03-14 07:09:00
104 MPEC 2011-E21 DAILY ORBIT UPDATE (2011 MAR. 4 UT) 2011-03-04 07:07:00
105 MPEC 2011-D46 DAILY ORBIT UPDATE (2011 FEB. 27 UT) 2011-02-27 07:07:00
106 MPEC 2010-W22 COMET 103P/HARTLEY 2010-11-24 17:03:00 Comet CATCH
107 MPEC 2010-V139 DAILY ORBIT UPDATE (2010 NOV. 15 UT) 2010-11-15 07:12:00
108 MPEC 2010-V116 DAILY ORBIT UPDATE (2010 NOV. 12 UT) 2010-11-12 07:12:00
109 MPEC 2010-V94 DAILY ORBIT UPDATE (2010 NOV. 9 UT) 2010-11-09 07:11:00
110 MPEC 2010-V79 DAILY ORBIT UPDATE (2010 NOV. 8 UT) 2010-11-08 07:11:00
111 MPEC 2010-U67 DAILY ORBIT UPDATE (2010 OCT. 31 UT) 2010-10-31 06:09:00
112 MPEC 2010-U09 DAILY ORBIT UPDATE (2010 OCT. 17 UT) 2010-10-17 06:09:00
113 MPEC 2010-T35 OBSERVATIONS OF COMETS 2010-10-06 16:11:00 Comet CATCH
114 MPEC 2010-T01 DAILY ORBIT UPDATE (2010 OCT. 1 UT) 2010-10-01 06:06:00
115 MPEC 2010-S01 DAILY ORBIT UPDATE (2010 SEPT. 16 UT) 2010-09-16 06:10:00
116 MPEC 2010-R109 DAILY ORBIT UPDATE (2010 SEPT. 14 UT) 2010-09-14 06:10:00
117 MPEC 2010-R72 OBSERVATIONS OF COMETS 2010-09-08 15:05:00 Comet CATCH
118 MPEC 2010-P53 DAILY ORBIT UPDATE (2010 AUG. 12 UT) 2010-08-12 06:11:00
119 MPEC 2010-L88 DAILY ORBIT UPDATE (2010 JUNE 15 UT) 2010-06-15 06:10:00
120 MPEC 2010-L67 DAILY ORBIT UPDATE (2010 JUNE 14 UT) 2010-06-14 06:10:00
121 MPEC 2010-L53 DAILY ORBIT UPDATE (2010 JUNE 10 UT) 2010-06-10 06:09:00
122 MPEC 2010-K54 OBSERVATIONS OF COMETS 2010-05-24 17:21:00 Comet CATCH
123 MPEC 2010-J90 OBSERVATIONS OF COMETS 2010-05-13 22:37:00 Comet CATCH
124 MPEC 2010-J73 DAILY ORBIT UPDATE (2010 MAY 12 UT) 2010-05-12 06:09:00
125 MPEC 2010-J40 OBSERVATIONS OF COMETS 2010-05-08 15:01:00 Comet CATCH
126 MPEC 2010-H43 DAILY ORBIT UPDATE (2010 APR. 23 UT) 2010-04-23 06:11:00
127 MPEC 2010-H27 OBSERVATIONS OF COMETS 2010-04-19 18:01:00 Comet CATCH
128 MPEC 2010-G70 OBSERVATIONS OF COMETS 2010-04-09 18:29:00 Comet CATCH
129 MPEC 2010-G14 OBSERVATIONS OF COMETS 2010-04-03 15:13:00 Comet CATCH
130 MPEC 2010-F74 OBSERVATIONS OF COMETS 2010-03-23 16:12:00 Comet CATCH
131 MPEC 2010-E21 OBSERVATIONS OF COMETS 2010-03-06 16:30:00 Comet CATCH
132 MPEC 2010-D56 DAILY ORBIT UPDATE (2010 FEB. 20 UT) 2010-02-20 07:22:00
133 MPEC 2010-D15 OBSERVATIONS OF COMETS 2010-02-16 20:15:00 Comet CATCH
134 MPEC 2010-D13 COMET C/2010 B1 (CARDINAL) 2010-02-16 19:26:00 Comet CATCH
135 MPEC 2010-C33 COMET C/2010 B1 (CARDINAL) 2010-02-09 22:00:00 Comet CATCH
136 MPEC 2010-A60 DAILY ORBIT UPDATE (2010 JAN. 12 UT) 2010-01-12 07:11:00
137 MPEC 2010-A14 DAILY ORBIT UPDATE (2010 JAN. 5 UT) 2010-01-05 07:09:00
138 MPEC 2009-Y45 DAILY ORBIT UPDATE (2009 DEC. 23 UT) 2009-12-23 07:12:00
139 MPEC 2009-Y43 OBSERVATIONS OF COMETS 2009-12-22 21:50:00 Comet CATCH
140 MPEC 2009-Y34 DAILY ORBIT UPDATE (2009 DEC. 21 UT) 2009-12-21 07:16:00
141 MPEC 2009-W96 COMET P/2009 T2 (LA SAGRA) 2009-11-24 17:17:00 Comet CATCH
142 MPEC 2009-W63 DAILY ORBIT UPDATE (2009 NOV. 22 UT) 2009-11-22 07:12:00
143 MPEC 2009-W20 COMET P/2009 T2 (LA SAGRA) 2009-11-18 15:42:00 Comet CATCH
144 MPEC 2009-W01 DAILY ORBIT UPDATE (2009 NOV. 16 UT) 2009-11-16 07:09:00
145 MPEC 2009-V67 DAILY ORBIT UPDATE (2009 NOV. 14 UT) 2009-11-14 07:09:00
146 MPEC 2009-Q57 DAILY ORBIT UPDATE (2009 AUG. 27 UT) 2009-08-27 06:07:00
147 MPEC 2009-Q55 DAILY ORBIT UPDATE (2009 AUG. 26 UT) 2009-08-26 06:08:00

List of Observers

Observers Count
T. Haugh 279

List of Measurers

Measurers Count

List of Facilities

Facilities Count
0.25-m f/5.4 Newtonian reflector + CCD 258
0.32-m f/6.7 Newtonian reflector + CCD 3
0.32-m f/5.8 Newtonian reflector + CCD 9
0.32-m f/5.8 Newtonian + CCD 9