867 Saji Observatory

Last update: UTC 2026-03-10 08:36:35

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 3 0 0 3 0 0 0 0 0 0
2025 2 0 0 2 0 0 0 0 0 0
2024 6 0 0 5 0 0 0 0 1 0
2023 7 0 0 4 3 0 0 0 0 0
2022 9 0 0 7 0 0 0 0 2 0
2021 4 0 0 4 0 0 0 0 0 0
2020 0 0 0 0 0 0 0 0 0 0
2019 2 0 0 1 0 0 0 0 1 0
2018 0 0 0 0 0 0 0 0 0 0
2017 0 0 0 0 0 0 0 0 0 0
2016 3 0 0 3 0 0 0 0 0 0
2015 4 0 0 4 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 4 0 0 3 1 0 0 0 0 0
2001 2 0 0 0 2 0 0 0 0 0
2000 1 0 0 1 0 0 0 0 0 0
1999 2 0 0 1 1 0 0 0 0 0
1998 5 0 0 3 0 0 0 0 2 0
1997 8 0 0 8 0 0 0 0 0 0
1996 5 0 0 3 0 0 0 0 1 1
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 1996-C03 COMET C/1996 B2 (HYAKUTAKE) 1996-02-07 18:30:00 Comet CATCH
2 MPEC 1996-K02 COMET C/1996 J1 (EVANS-DRINKWATER) 1996-05-17 14:07:00 Comet CATCH
3 MPEC 1996-Q03 1996 PW 1996-08-21 20:04:00 Unusual CATCH
4 MPEC 1996-X05 1996 XX14 1996-12-12 17:50:00 ✓ NEA (18>H>22) CATCH
5 MPEC 1997-A03 COMET C/1997 A1 (NEAT) 1997-01-15 17:26:00 Comet CATCH
6 MPEC 1997-H05 1997 GF3 1997-04-19 18:16:00 Unusual CATCH
7 MPEC 1997-K04 COMET C/1997 J1 (MUELLER) 1997-05-17 15:43:00 Comet CATCH
8 MPEC 1997-K05 COMET C/1997 J2 (MEUNIER-DUPOUY) 1997-05-17 16:19:00 Comet CATCH
9 MPEC 1997-L03 COMET C/1997 L1 (XINGLONG) 1997-06-12 21:32:00 Comet CATCH
10 MPEC 1997-R10 1997 RT 1997-09-07 18:56:00 NEA (18>H>22) CATCH
11 MPEC 1997-U08 COMET P/1997 T3 1997-10-22 18:49:00 Comet CATCH
12 MPEC 1997-V23 COMET P/1997 V1 (LARSEN) 1997-11-12 20:44:00 Comet CATCH
13 MPEC 1998-E08 1998 EC3 1998-03-03 20:05:00 NEAl18 CATCH
14 MPEC 1998-H29 COMET C/1998 H1 (STONEHOUSE) 1998-04-27 21:14:00 Comet CATCH
15 MPEC 1998-O05 COMET C/1998 M6 (MONTANI) 1998-07-17 19:49:00 Comet CATCH
16 MPEC 1998-U26 COMET C/1998 U3 (JAGER) 1998-10-27 18:57:00 Comet CATCH
17 MPEC 1998-Y22 1998 YM4 1998-12-21 15:42:00 PHAg18 CATCH
18 MPEC 1999-A13 DAILY ORBIT UPDATE (1999 JAN. 10 UT) 1999-01-10 16:04:00
19 MPEC 1999-K08 COMET C/1999 J2 (SKIFF) 1999-05-18 00:26:00 Comet CATCH
20 MPEC 2000-T45 COMET P/1993 X1 = 2000 T2 (KUSHIDA-MURAMATSU) 2000-10-14 19:10:00 Comet CATCH
21 MPEC 2001-U74 DAILY ORBIT UPDATE (2001 OCT. 31 UT) 2001-10-31 07:08:00
22 MPEC 2001-W69 DAILY ORBIT UPDATE (2001 NOV. 27 UT) 2001-11-27 07:12:00
23 MPEC 2002-B39 DAILY ORBIT UPDATE (2002 JAN. 28 UT) 2002-01-28 07:11:00
24 MPEC 2002-C04 COMET C/2001 OG108 (LONEOS) 2002-02-02 18:54:00 Comet CATCH
25 MPEC 2002-C111 COMET C/2002 C1 (IKEYA-ZHANG) 2002-02-15 23:23:00 Comet CATCH
26 MPEC 2002-R69 COMET P/1986 A1 = 2002 R2 (SHOEMAKER 3) 2002-09-13 16:07:00 Comet CATCH
27 MPEC 2015-B177 OBSERVATIONS AND ORBITS OF COMETS 2015-01-31 19:42:00 Comet CATCH
28 MPEC 2015-G03 OBSERVATIONS AND ORBITS OF COMETS 2015-04-01 17:12:00 Comet CATCH
29 MPEC 2015-K84 OBSERVATIONS AND ORBITS OF COMETS 2015-05-24 18:42:00 Comet CATCH
30 MPEC 2015-M77 OBSERVATIONS AND ORBITS OF COMETS 2015-06-30 16:47:00 Comet CATCH
31 MPEC 2016-A36 COMET P/2010 V1-B (IKEYA-MURAKAMI) 2016-01-05 05:05:00 Comet CATCH
32 MPEC 2016-B77 COMET P/2010 V1 (Ikeya-Murakami) 2016-01-26 14:59:00 Comet CATCH
33 MPEC 2016-D32 OBSERVATIONS AND ORBITS OF COMETS 2016-02-20 14:42:00 Comet CATCH
34 MPEC 2019-J142 OBSERVATIONS AND ORBITS OF COMETS 2019-05-15 14:22:00 Comet CATCH
35 MPEC 2019-W179 COMET 289P/Blanpain 2019-11-30 02:05:00 Comet CATCH
36 MPEC 2021-F20 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2021-03-18 05:58:00 Comet CATCH
37 MPEC 2021-L04 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2021-06-01 05:18:00 Comet CATCH
38 MPEC 2021-N06 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2021-07-02 04:55:00 Comet CATCH
39 MPEC 2021-W31 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2021-11-21 03:00:00 Comet CATCH
40 MPEC 2022-C15 COMET C/2021 F1 (Lemmon-PANSTARRS) 2022-02-02 05:26:00 Comet CATCH
41 MPEC 2022-E133 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2022-03-09 03:16:00 Comet CATCH
42 MPEC 2022-F14 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2022-03-22 07:23:00 Comet CATCH
43 MPEC 2022-G109 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2022-04-08 08:02:00 Comet CATCH
44 MPEC 2022-H04 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2022-04-17 04:45:00 Comet CATCH
45 MPEC 2022-H122 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2022-04-30 09:05:00 Comet CATCH
46 MPEC 2022-J33 COMET C/2021 X1 (Maury-Attard) 2022-05-05 08:19:00 Comet CATCH
47 MPEC 2022-J42 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2022-05-06 07:24:00 Comet CATCH
48 MPEC 2022-L66 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2022-06-08 04:25:00 Comet CATCH
49 MPEC 2023-A18 DAILY ORBIT UPDATE (2023 January 8) 2023-01-08 12:01:00
50 MPEC 2023-C46 DAILY ORBIT UPDATE (2023 February 7) 2023-02-07 12:08:00
51 MPEC 2023-P25 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-08-07 00:38:00 Comet CATCH
52 MPEC 2023-Q150 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-08-28 08:03:00 Comet CATCH
53 MPEC 2023-R20 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-09-06 07:20:00 Comet CATCH
54 MPEC 2023-U124 DAILY ORBIT UPDATE (2023 October 20) 2023-10-20 12:03:00
55 MPEC 2023-X98 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-12-06 08:53:00 Comet CATCH
56 MPEC 2024-B57 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-01-20 07:23:00 Comet CATCH
57 MPEC 2024-B135 COMET P/2018 P3 = P/2023 V8 (PANSTARRS) 2024-01-26 07:59:00 Comet CATCH
58 MPEC 2024-D126 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-02-26 05:48:00 Comet CATCH
59 MPEC 2024-E07 COMET C/2019 O2 (PANSTARRS) 2024-03-02 01:18:00 Comet CATCH
60 MPEC 2024-J122 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-05-07 20:00:00 Comet CATCH
61 MPEC 2024-J304 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-05-14 19:08:00 Comet CATCH
62 MPEC 2025-N86 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2025-07-10 20:25:00 Comet CATCH
63 MPEC 2025-P122 COMET P/2010 U1 = P/2025 M4 (Boattini) 2025-08-08 21:12:00 Comet CATCH
64 MPEC 2026-A24 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2026-01-07 23:27:00 Comet CATCH
65 MPEC 2026-A90 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2026-01-12 22:05:00 Comet CATCH
66 MPEC 2026-C91 COMET 3I/ATLAS 2026-02-13 16:28:00 Comet CATCH

Objects Observed by This Station

Object Observations Discoveries First Obs Last Obs Magnitude MPECs
PK23V080 8 1 2023-11-15 2024-01-11 19.2 1
0012P 5304 0 2022-04-24 2024-03-13 16.4 78
03200 3411 0 2001-11-22 2001-11-22 19.0 1137
98943 2926 0 2023-01-06 2023-02-05 20.6 266
0029P 1755 0 2025-12-29 2025-12-29 13.8 585
CK23A030 1116 0 2024-02-12 2024-05-03 11.3 93
F5140 928 0 2023-10-17 2023-10-18 21.8 116
0022P 845 0 2014-12-27 2015-05-13 22.0 169
04015 816 0 2002-01-19 2002-01-19 21.0 272
0009P 728 0 2021-03-10 2021-03-10 21.0 182
CK21X010 552 0 2022-02-25 2022-02-27 N/A 69
0158P 504 0 2015-02-20 2015-02-20 20.3 126
0173P 462 0 2022-02-25 2022-03-02 N/A 66
0032P 447 0 2014-12-27 2014-12-27 15.6 149
0049P 441 0 2023-07-20 2023-07-20 19.3 147
0073P 441 0 2022-03-08 2022-04-20 24.1 63
0003I 440 0 2025-07-05 2026-01-18 18.6 40
CK11J020 436 0 2015-06-12 2015-06-12 22.2 109
CK21A010 400 0 2021-02-21 2021-05-03 18.2 25
K01OA8G 390 0 2001-09-22 2001-11-21 N/A 65
AK19O020 371 0 2022-04-24 2023-07-17 20.1 53
0240P 352 0 2026-01-09 2026-01-09 15.9 88
CK10U030 345 0 2014-12-27 2014-12-27 N/A 115
0440P 280 0 2022-02-25 2022-04-20 18.4 14
0062P 249 0 2024-02-12 2024-02-12 17.2 83
CK23P010 243 0 2023-08-20 2023-09-02 20.3 27
0070P 234 0 2014-12-27 2014-12-27 16.5 78
0308P 231 0 2015-11-04 2016-01-03 19.5 21
0053P 213 0 2014-12-27 2014-12-27 N/A 71
0180P 204 0 2014-12-27 2014-12-27 17.8 51
J98Y04M 144 0 1998-12-21 1999-01-05 N/A 24
0100P 140 0 2022-03-24 2022-03-24 17.0 35
0106P 140 0 2022-02-25 2022-02-25 N/A 35
CK19O020 140 0 2022-04-24 2023-07-17 20.6 20
PK20W05J 132 0 2023-07-17 2023-07-17 20.9 44
0269P 126 0 2014-12-27 2014-12-27 N/A 42
0292P 116 0 2015-02-20 2015-02-20 16.5 29
J98E03C 116 0 1998-03-02 1998-03-02 N/A 29
AK19T010 112 0 2022-04-24 2022-04-24 22.7 28
PK22D010 112 0 2022-03-24 2022-04-24 17.8 7
0040P 110 0 2014-12-27 2014-12-27 17.7 55
CK21F010 104 0 2021-05-03 2021-05-31 17.1 13
PK22C010 91 0 2022-03-08 2022-04-06 20.9 7
AK21X010 88 0 2022-02-25 2022-02-27 17.4 11
AK24U020 77 0 2026-01-14 2026-01-18 19.1 11
0024P 75 0 2025-12-29 2025-12-29 14.4 25
CK01OA8G 72 0 2002-02-01 2002-02-01 17.0 18
PK21C020 72 0 2021-03-10 2021-06-08 19.9 6
PK22C020 72 0 2022-04-24 2022-04-24 18.2 18
AK21F010 64 0 2021-05-03 2021-05-31 16.7 8
PK23V020 63 0 2024-01-11 2024-01-11 21.7 21
0289P 56 0 2019-11-21 2019-11-21 23.7 14
PK18P030 55 0 2023-11-15 2023-11-15 N/A 11
PK21L020 49 0 2021-10-10 2021-10-27 20.8 7
0240P b 44 0 2026-01-09 2026-01-09 19.1 11
CK02C010 42 0 2002-02-06 2002-02-06 14.1 21
PK22C030 40 0 2022-04-24 2022-04-24 19.4 10
J97R00T 36 0 1997-09-02 1997-09-02 21.5 12
PK22E010 32 0 2022-04-24 2022-04-24 18.8 8
PK23T010 30 0 2024-01-11 2024-01-11 20.9 10
CK15F050 28 0 2015-05-13 2015-05-13 N/A 7
CJ99J020 24 0 1999-05-14 1999-05-14 20.1 8
PK10V01b 24 0 2016-01-02 2016-01-02 20.3 6
PK10V01a 20 0 2016-01-02 2016-01-02 17.1 5
AK22B030 18 0 2022-02-27 2022-02-27 24.5 6
J96P00W 18 0 1996-08-18 1996-08-19 19.6 3
0416P 16 0 2021-03-10 2021-03-10 20.0 4
PK15C010 16 0 2015-06-12 2015-06-12 20.0 8
PK15D050 16 0 2015-06-12 2015-06-12 21.4 8
PK15D060 16 0 2015-06-12 2015-06-12 22.9 8
PK25W040 16 0 2026-01-09 2026-01-09 20.3 4
CK18V010 15 0 2018-11-10 2018-11-10 9.1 5
CJ96B020 12 0 1996-02-03 1996-02-03 N/A 4
J97G03F 12 0 1997-04-11 1997-04-13 N/A 2
PK00T020 11 0 2000-09-26 2000-10-04 N/A 1
J96X14X 10 0 1996-12-12 1996-12-12 19.0 5
PK15K050 10 0 2015-06-12 2015-06-12 19.4 5
PK25M040 8 0 2025-07-24 2025-07-27 21.4 1
CJ97A010 6 0 1997-01-13 1997-01-13 19.8 2
CJ97J010 6 0 1997-05-09 1997-05-09 N/A 2
CJ97J020 6 0 1997-05-09 1997-05-09 13.0 2
CJ98H010 6 0 1998-04-26 1998-04-26 N/A 2
CJ96J010 4 0 1996-05-13 1996-05-13 16.0 1
CJ98M060 4 0 1998-07-03 1998-07-03 19.0 1
PK02R020 4 0 2002-09-09 2002-09-09 N/A 1
CJ97L010 3 0 1997-06-11 1997-06-11 N/A 1
CJ98U030 3 0 1998-10-25 1998-10-25 N/A 1
PJ97T030 3 0 1997-10-12 1997-10-12 N/A 1
PJ97V010 3 0 1997-11-06 1997-11-06 N/A 1

List of Observers

Observer Group Total MPECs
T.Oribe 40
A.Miyamoto, M.Aimoto, M.Yamanishi, T.Oribe 18
Unknown 7
A.Miyamoto, T.Oribe 1
Individual Observer Total MPECs
T.Oribe 59
A.Miyamoto 19
M.Aimoto 18
M.Yamanishi 18
Unknown 7

List of Measurers

Measurer Group Total MPECs
Unknown 65
T.Oribe 1
Individual Measurer Total MPECs
Unknown 65
T.Oribe 1

List of Facilities

Facilities Count
1.03-m f/4.2 reflector + CCD 2
1.03-m f/4.5 reflector + CCD 3
1.03-m f/4.6 reflector + CCD 19
1.03-m f/4.8 reflector 2
1.03-m f/4.8 reflector + CCD 18
1.03-m f/4.8 reflector + CMOS 2
1.03-m reflecter + CCD 1
1.03-m reflecter + CMOS 12
Unknown 7