897 YGCO Chiyoda Station

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 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 5 0 0 5 0 0 0 0 0 0
2001 1 0 0 1 0 0 0 0 0 0
2000 0 0 0 0 0 0 0 0 0 0
1999 13 0 0 10 3 0 0 0 0 0
1998 13 0 0 5 0 0 0 0 7 1
1997 18 0 0 16 0 0 0 0 1 1
1996 18 0 0 14 0 0 0 0 1 3
1995 7 0 0 2 0 0 0 0 4 1
1994 2 0 0 1 0 0 0 0 0 1
1993 1 0 0 1 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 2002-Y14 COMET C/2002 X5 2002-12-16 20:52:00 Comet CATCH
2 MPEC 2002-H08 OBSERVATIONS OF COMETS 2002-04-16 18:46:00 Comet CATCH
3 MPEC 2002-F56 COMET C/2002 E2 (SNYDER-MURAKAMI) 2002-03-25 21:33:00 Comet CATCH
4 MPEC 2002-F55 COMET C/2002 C1 (IKEYA-ZHANG) 2002-03-25 21:12:00 Comet CATCH
5 MPEC 2002-F39 COMET C/2002 F1 (UTSUNOMIYA) 2002-03-21 17:12:00 Comet CATCH
6 MPEC 2001-M50 COMET C/2000 WM1 (LINEAR) 2001-06-28 17:10:00 Comet CATCH
7 MPEC 1999-Y28 COMET C/1999 Y1 (LINEAR) 1999-12-27 19:28:00 Comet CATCH
8 MPEC 1999-V29 COMET C/1999 V1 (CATALINA) 1999-11-09 19:32:00 Comet CATCH
9 MPEC 1999-V18 COMET 63P/WILD 1 1999-11-06 15:52:00 Comet CATCH
10 MPEC 1999-V17 COMET P/1999 U3 (LINEAR) 1999-11-06 14:20:00 Comet CATCH
11 MPEC 1999-U19 COMET C/1999 U1 (FERRIS) 1999-10-21 19:05:00 Comet CATCH
12 MPEC 1999-U14 COMET C/1999 S4 (LINEAR) 1999-10-19 18:09:00 Comet CATCH
13 MPEC 1999-T26 COMET C/1999 S4 (LINEAR) 1999-10-06 20:47:00 Comet CATCH
14 MPEC 1999-T25 COMET C/1999 S3 (LINEAR) 1999-10-06 20:23:00 Comet CATCH
15 MPEC 1999-S19 DAILY ORBIT UPDATE (1999 SEPT. 27 UT) 1999-09-27 06:08:00
16 MPEC 1999-S18 COMET C/1999 S3 (LINEAR) 1999-09-26 18:11:00 Comet CATCH
17 MPEC 1999-K21 DAILY ORBIT UPDATE (1999 MAY 22 UT) 1999-05-22 06:07:00
18 MPEC 1999-D25 COMET P/1999 D1 (HERMANN) 1999-02-26 23:20:00 Comet CATCH
19 MPEC 1999-A05 DAILY ORBIT UPDATE (1999 JAN. 4 UT) 1999-01-04 07:07:00
20 MPEC 1998-Y22 1998 YM4 1998-12-21 15:42:00 PHAg18 CATCH
21 MPEC 1998-W36 1998 WZ6 1998-11-25 20:53:00 PHAl18 CATCH
22 MPEC 1998-W35 COMET P/1998 W1 (SPAHR) 1998-11-25 16:02:00 Comet CATCH
23 MPEC 1998-W02 1998 VD31 1998-11-16 15:01:00 NEA (18>H>22) CATCH
24 MPEC 1998-U26 COMET C/1998 U3 (JAGER) 1998-10-27 18:57:00 Comet CATCH
25 MPEC 1998-O04 COMET C/1998 M5 (LINEAR) 1998-07-17 18:26:00 Comet CATCH
26 MPEC 1998-M31 COMET C/1998 M2 (LINEAR) 1998-06-29 17:09:00 Comet CATCH
27 MPEC 1998-F15 1998 FX2 1998-03-24 14:27:00 NEAl18 CATCH
28 MPEC 1998-E08 1998 EC3 1998-03-03 20:05:00 ✓ NEAl18 CATCH
29 MPEC 1998-B21 1998 BB10 1998-01-27 16:39:00 PHAg18 CATCH
30 MPEC 1998-B19 1998 BG9 1998-01-26 22:32:00 NEA (18>H>22) CATCH
31 MPEC 1998-B18 1998 BZ7 1998-01-26 16:42:00 NEAl18 CATCH
32 MPEC 1998-A13 1997 YL11 1998-01-09 16:06:00 Unusual CATCH
33 MPEC 1997-Y11 1997 XF11 1997-12-23 14:22:00 PHAl18 CATCH
34 MPEC 1997-V23 COMET P/1997 V1 (LARSEN) 1997-11-12 20:44:00 Comet CATCH
35 MPEC 1997-V18 1997 US9 1997-11-12 18:39:00 NEAl18 CATCH
36 MPEC 1997-V17 1997 UH9 1997-11-12 18:00:00 NEA (18>H>22) CATCH
37 MPEC 1997-V16 1997 UF9 1997-11-12 17:24:00 NEAl18 CATCH
38 MPEC 1997-R10 1997 RT 1997-09-07 18:56:00 NEA (18>H>22) CATCH
39 MPEC 1997-R02 1997 RT 1997-09-03 13:12:00 ✓ NEA (18>H>22) CATCH
40 MPEC 1997-P10 1997 PO 1997-08-11 19:32:00 Unusual CATCH
41 MPEC 1997-K05 COMET C/1997 J2 (MEUNIER-DUPOUY) 1997-05-17 16:19:00 Comet CATCH
42 MPEC 1997-K04 COMET C/1997 J1 (MUELLER) 1997-05-17 15:43:00 Comet CATCH
43 MPEC 1997-J01 1997 GD32 1997-05-01 13:55:00 PHAg18 CATCH
44 MPEC 1997-H07 1997 GL3 1997-04-19 18:56:00 PHAg18 CATCH
45 MPEC 1997-H06 1997 GH3 1997-04-19 18:36:00 NEAl18 CATCH
46 MPEC 1997-E01 COMET C/1997 D1 (MUELLER) 1997-03-03 18:52:00 Comet CATCH
47 MPEC 1997-D06 COMET P/1997 C1 (GEHRELS) 1997-02-19 14:12:00 Comet CATCH
48 MPEC 1997-D05 COMET P/1997 B1 (KOBAYASHI) 1997-02-19 13:51:00 Comet CATCH
49 MPEC 1997-C08 1997 CZ5 1997-02-11 17:19:00 Unusual CATCH
50 MPEC 1997-A03 COMET C/1997 A1 (NEAT) 1997-01-15 17:26:00 Comet CATCH
51 MPEC 1996-U04 1996 UK 1996-10-21 15:30:00 ✓ Unusual CATCH
52 MPEC 1996-U02 1996 TE11 1996-10-16 16:45:00 Unusual CATCH
53 MPEC 1996-R05 COMET C/1996 Q1 (TABUR) 1996-09-09 17:05:00 Comet CATCH
54 MPEC 1996-Q02 1996 PC1 1996-08-17 15:58:00 NEA (18>H>22) CATCH
55 MPEC 1996-N02 COMET C/1996 N1 (BREWINGTON) 1996-07-12 17:55:00 Comet CATCH
56 MPEC 1996-K10 1996 JG 1996-05-23 14:44:00 PHAg18 CATCH
57 MPEC 1996-K07 1996 JG 1996-05-19 15:19:00 PHAg18 CATCH
58 MPEC 1996-K02 COMET C/1996 J1 (EVANS-DRINKWATER) 1996-05-17 14:07:00 Comet CATCH
59 MPEC 1996-J07 1996 JG 1996-05-14 14:12:00 ✓ PHAg18 CATCH
60 MPEC 1996-F07 1996 FG3 1996-03-26 19:07:00 ✓ PHAl18 CATCH
61 MPEC 1996-F04 COMET C/1996 E1 (NEAT) 1996-03-21 22:20:00 Comet CATCH
62 MPEC 1996-F03 COMET C/1996 B2 (HYAKUTAKE) 1996-03-19 22:41:00 Comet CATCH
63 MPEC 1996-D03 1996 BZ3 1996-02-22 20:05:00 NEAl18 CATCH
64 MPEC 1996-C06 COMET C/1996 B2 (HYAKUTAKE) 1996-02-10 22:35:00 Comet CATCH
65 MPEC 1996-C03 COMET C/1996 B2 (HYAKUTAKE) 1996-02-07 18:30:00 Comet CATCH
66 MPEC 1996-C02 COMET C/1996 B1 (SZCZEPANSKI) 1996-02-07 14:41:00 Comet CATCH
67 MPEC 1996-B06 COMET C/1995 Y1 (HYAKUTAKE) 1996-01-22 22:00:00 Comet CATCH
68 MPEC 1996-B04 COMET P/1996 A1 (JEDICKE) 1996-01-22 00:17:00 Comet CATCH
69 MPEC 1995-Y05 1995 YA3 1995-12-30 16:44:00 NEAl18 CATCH
70 MPEC 1995-W06 1995 WQ5 1995-11-28 13:49:00 Unusual CATCH
71 MPEC 1995-R07 1995 QY2 1995-09-08 12:58:00 ✓ Unusual CATCH
72 MPEC 1995-P02 COMET C/1995 O1 (HALE-BOPP) 1995-08-02 22:04:00 Comet CATCH
73 MPEC 1995-P01 COMET C/1995 O1 (HALE-BOPP) 1995-08-01 14:57:00 Comet CATCH
74 MPEC 1995-G01 1995 FX 1995-04-02 19:39:00 NEA (18>H>22) CATCH
75 MPEC 1995-E15 1995 EK1 1995-03-13 18:36:00 NEAl18 CATCH
76 MPEC 1994-X06 1994 XL1 1994-12-11 16:48:00 PHAg18 CATCH
77 MPEC 1994-H01 1994 GY 1994-04-17 13:30:00 ✓ NEAl18 CATCH
78 MPEC 1993-Y02 PERIODIC COMET KUSHIDA-MURAMATSU (1993t) 1993-12-16 21:17:00 Comet CATCH

List of Observers

Observers Count
T. Kojima 342

List of Measurers

Measurers Count

List of Facilities

Facilities Count
0.25-m f/3.4 Wright- Schmidt camera + CCD 2
0.25-m f/3.4 Wright-Schmidt camera 3
0.25-m f/6.0 reflector + CCD 259
0.25-m f/6.0 reflector 74