327 Peking Observatory, Xinglong 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 Orbit Update DOU List Update Retraction Other Follow-Up First Follow-Up
2025 0 0 0 0 0 0 0 0 0 0
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 2 0 0 2 0 0 0 0 0 0
2001 2 0 0 0 2 0 0 0 0 0
2000 8 0 0 1 2 0 0 0 4 1
1999 24 0 0 5 7 0 0 0 9 3
1998 23 0 5 3 9 0 0 0 5 1
1997 19 0 2 12 0 0 0 0 3 2
1996 2 0 0 2 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 1996-A07 1995 YA3 = 1995 VB19 1996-01-05 17:34:00 NEAl18 CATCH
2 MPEC 1996-C03 COMET C/1996 B2 (HYAKUTAKE) 1996-02-07 18:30:00 Comet CATCH
3 MPEC 1997-A03 COMET C/1997 A1 (NEAT) 1997-01-15 17:26:00 Comet CATCH
4 MPEC 1997-B12 1997 BQ 1997-01-22 19:06:00 ✓ PHAl18 CATCH
5 MPEC 1997-B13 1997 BR 1997-01-25 14:16:00 ✓ PHAl18 CATCH
6 MPEC 1997-B16 1997 BR 1997-01-29 22:06:00 PHAl18 CATCH
7 MPEC 1997-D01 1997 CZ5 1997-02-18 15:35:00 Unusual CATCH
8 MPEC 1997-D03 1997 CO5 1997-02-18 16:06:00 Unusual CATCH
9 MPEC 1997-D04 1997 BR 1997-02-18 16:17:00 PHAl18 CATCH
10 MPEC 1997-D05 COMET P/1997 B1 (KOBAYASHI) 1997-02-19 13:51:00 Comet CATCH
11 MPEC 1997-D06 COMET P/1997 C1 (GEHRELS) 1997-02-19 14:12:00 Comet CATCH
12 MPEC 1997-D11 1997 CU26 1997-02-24 22:14:00 ✓ Unusual CATCH
13 MPEC 1997-E01 COMET C/1997 D1 (MUELLER) 1997-03-03 18:52:00 Comet CATCH
14 MPEC 1997-H05 1997 GF3 1997-04-19 18:16:00 Unusual CATCH
15 MPEC 1997-H13 1997 GD32 1997-04-25 13:01:00 PHAg18 CATCH
16 MPEC 1997-L03 COMET C/1997 L1 (XINGLONG) 1997-06-12 21:32:00 Comet CATCH
17 MPEC 1997-R02 1997 RT 1997-09-03 13:12:00 NEA (18>H>22) CATCH
18 MPEC 1997-U05 1997 TT25 1997-10-21 19:22:00 ✓ NEA (18>H>22) CATCH
19 MPEC 1997-V23 COMET P/1997 V1 (LARSEN) 1997-11-12 20:44:00 Comet CATCH
20 MPEC 1998-A08 1997 YM3 1998-01-07 01:27:00 ✓ NEAl18 CATCH
21 MPEC 1998-A10 1997 YX3 1998-01-07 20:02:00 ✓ Unusual CATCH
22 MPEC 1998-C27 1998 CS1 1998-02-13 15:36:00 ✓ PHAl18 CATCH
23 MPEC 1998-E07 1998 CS1 1998-03-03 16:45:00 PHAl18 CATCH
24 MPEC 1998-E08 1998 EC3 1998-03-03 20:05:00 NEAl18 CATCH
25 MPEC 1998-F06 1998 EC3 1998-03-19 15:56:00 NEAl18 CATCH
26 MPEC 1998-H30 DAILY ORBIT UPDATE (1998 APR. 28 UT) 1998-04-28 06:07:00
27 MPEC 1998-L17 DAILY ORBIT UPDATE (1998 JUNE 9 UT) 1998-06-09 07:06:00
28 MPEC 1998-S20 1998 SD4 1998-09-22 17:38:00 ✓ Unusual CATCH
29 MPEC 1998-T08 DAILY ORBIT UPDATE (1998 OCT. 5 UT) 1998-10-05 06:05:00
30 MPEC 1998-X10 1998 WT24 1998-12-04 15:42:00 PHAl18 CATCH
31 MPEC 1998-X11 1998 WU24 1998-12-04 16:34:00 Unusual CATCH
32 MPEC 1998-X20 1998 XB 1998-12-05 17:17:00 ✓ NEAl18 CATCH
33 MPEC 1998-X22 DAILY ORBIT UPDATE (1998 DEC. 7 UT) 1998-12-07 07:08:00
34 MPEC 1998-X30 DAILY ORBIT UPDATE (1998 DEC. 11 UT) 1998-12-11 06:59:00
35 MPEC 1998-X35 DAILY ORBIT UPDATE (1998 DEC. 13 UT) 1998-12-13 07:04:00
36 MPEC 1998-X39 1998 XZ4 1998-12-14 16:30:00 ✓ NEAl18 CATCH
37 MPEC 1998-X40 1998 XA5 1998-12-14 16:37:00 NEA (18>H>22) CATCH
38 MPEC 1998-Y04 DAILY ORBIT UPDATE (1998 DEC. 17 UT) 1998-12-17 07:06:00
39 MPEC 1998-Y25 DAILY ORBIT UPDATE (1998 DEC. 23 UT) 1998-12-23 07:06:00
40 MPEC 1998-Y33 DAILY ORBIT UPDATE (1998 DEC. 28 UT) 1998-12-28 07:06:00
41 MPEC 1998-Y41 COMET P/1998 Y2 (LI) 1998-12-30 16:48:00 Comet CATCH
42 MPEC 1999-B01 DAILY ORBIT UPDATE (1999 JAN. 16 UT) 1999-01-16 07:06:00
43 MPEC 1999-B28 DAILY ORBIT UPDATE (1999 JAN. 29 UT) 1999-01-29 07:06:00
44 MPEC 1999-F18 DAILY ORBIT UPDATE (1999 MAR. 21 UT) 1999-03-21 07:07:00
45 MPEC 1999-F34 1999 FJ21 1999-03-27 18:10:00 NEA (18>H>22) CATCH
46 MPEC 1999-F35 1999 FK21 1999-03-27 18:21:00 NEA (18>H>22) CATCH
47 MPEC 1999-H05 DAILY ORBIT UPDATE (1999 APR. 18 UT) 1999-04-18 06:07:00
48 MPEC 1999-H13 1999 GT6 1999-04-21 21:18:00 ✓ NEAl18 CATCH
49 MPEC 1999-H27 DAILY ORBIT UPDATE (1999 APR. 25 UT) 1999-04-25 06:07:00
50 MPEC 1999-H29 COMET C/1999 H3 (LINEAR) 1999-04-25 19:03:00 Comet CATCH
51 MPEC 1999-H31 1999 HX2 1999-04-26 20:22:00 Unusual CATCH
52 MPEC 1999-K22 COMET C/1999 K2 (FERRIS) 1999-05-22 14:58:00 Comet CATCH
53 MPEC 1999-K28 1999 KW4 1999-05-22 16:56:00 ✓ PHAl18 CATCH
54 MPEC 1999-K29 1999 KX4 1999-05-22 17:10:00 ✓ NEAl18 CATCH
55 MPEC 1999-N05 DAILY ORBIT UPDATE (1999 JULY 3 UT) 1999-07-03 06:06:00
56 MPEC 1999-S14 DAILY ORBIT UPDATE (1999 SEPT. 23 UT) 1999-09-23 06:07:00
57 MPEC 1999-S18 COMET C/1999 S3 (LINEAR) 1999-09-26 18:11:00 Comet CATCH
58 MPEC 1999-T15 1999 SG10 1999-10-04 14:45:00 PHAg18 CATCH
59 MPEC 1999-T16 1999 SH10 1999-10-04 14:55:00 NEA (H>22) CATCH
60 MPEC 1999-T18 1999 SK10 1999-10-04 15:02:00 NEA (18>H>22) CATCH
61 MPEC 1999-T26 COMET C/1999 S4 (LINEAR) 1999-10-06 20:47:00 Comet CATCH
62 MPEC 1999-V29 COMET C/1999 V1 (CATALINA) 1999-11-09 19:32:00 Comet CATCH
63 MPEC 2000-A41 1999 JB, 1999 RG33, 1999 VL12 2000-01-11 17:36:00 NEAl18 CATCH
64 MPEC 2000-R35 DAILY ORBIT UPDATE (2000 SEPT. 8 UT) 2000-09-08 06:25:00
65 MPEC 2000-U33 DAILY ORBIT UPDATE (2000 OCT. 29 UT) 2000-10-29 06:08:00
66 MPEC 2000-U34 2000 UV13 2000-10-29 19:10:00 NEAl18 CATCH
67 MPEC 2000-V12 2000 VM2 2000-11-03 13:40:00 NEAl18 CATCH
68 MPEC 2000-Y08 2000 XH47 2000-12-19 01:21:00 NEA (18>H>22) CATCH
69 MPEC 2000-Y09 2000 XK47 2000-12-19 01:38:00 ✓ PHAg18 CATCH
70 MPEC 2001-B35 DAILY ORBIT UPDATE (2001 JAN. 24 UT) 2001-01-24 07:20:00
71 MPEC 2001-T27 DAILY ORBIT UPDATE (2001 OCT. 10 UT) 2001-10-10 06:47:00
72 MPEC 2002-C03 COMET C/2002 C1 (IKEYA-ZHANG) 2002-02-02 18:14:00 Comet CATCH
73 MPEC 2002-M29 2002 LJ3 2002-06-24 16:31:00 NEA (18>H>22) CATCH

Objects Observed by This Station (61 total)

Object Observations Discoveries First Obs Last Obs Magnitude MPECs
J98X00B 9702 147 1998-12-01 1999-01-21 15.8 147
J98C01S 187 17 1998-02-09 1998-02-15 20.7 17
J97Y03M 204 12 1997-12-20 1998-01-06 20.8 12
J97B00R 140 4 1997-01-20 1997-02-13 N/A 4
J97T25T 42 3 1997-10-12 1997-10-21 22.2 3
J98S04D 14 1 1998-09-17 1998-09-21 18.6 1
J97Y03X 9 1 1997-12-22 1998-01-04 N/A 1
J95V19B 6 1 1995-11-07 1995-11-11 N/A 1
J99S10K 369 0 1999-10-02 1999-10-02 19.8 123
J99K04W 309 0 1999-05-21 1999-05-21 17.7 103
J99K04X 282 0 1999-05-21 1999-05-21 17.5 94
J98E03C 279 0 1998-03-01 1998-03-08 N/A 31
K00DA7P 240 0 2000-10-04 2000-10-04 19.6 80
J98Q52S 224 0 1998-09-25 1998-09-25 20.0 56
J99F21J 156 0 1999-03-26 1999-03-26 18.4 52
K02L03J 156 0 1998-03-02 1998-03-02 N/A 26
K00Q07W 153 0 2000-10-04 2000-10-04 N/A 51
J99F00A 152 0 1999-03-19 1999-03-19 N/A 38
J98X05A 144 0 1998-12-13 1998-12-13 N/A 36
J99F21K 144 0 1999-03-26 1999-03-26 N/A 48
K00X47K 140 0 2000-12-16 2000-12-19 18.9 20
J98W24T 138 0 1998-12-02 1998-12-02 16.4 46
J98X04Z 108 0 1998-12-13 1998-12-13 17.3 27
K00U13V 108 0 2000-10-28 2000-10-28 N/A 27
K00X47H 100 0 2000-12-16 2000-12-16 18.7 25
K00Q01J 87 0 1998-07-20 1998-07-20 19.1 29
J99H02A 81 0 1999-04-24 1999-04-24 18.3 27
J99G06T 78 0 1999-04-17 1999-04-17 19.2 26
J98H03L 72 0 1998-04-24 1998-04-24 20.5 24
J99R36Q 72 0 1999-09-19 1999-09-19 25.0 24
K00C33L 70 0 1995-09-28 1995-10-17 N/A 10
CK02C010 69 0 2002-02-02 2002-02-02 14.1 23
J99M00M 69 0 1999-06-26 1999-06-26 21.8 23
J98K26Y 57 0 1998-06-04 1998-06-04 20.3 19
J99S10H 54 0 1999-10-02 1999-10-02 N/A 18
J97B00Q 48 0 1997-01-20 1997-01-20 21.3 12
J99S10G 48 0 1999-10-02 1999-10-02 N/A 16
J99G05Y 42 0 1999-04-17 1999-04-17 22.5 14
J97R00T 33 0 1997-09-02 1997-09-02 21.5 11
K00V02M 30 0 2000-11-02 2000-11-02 21.8 10
J97C05O 16 0 1997-02-12 1997-02-12 N/A 4
PJ97C010 16 0 1997-02-02 1997-02-04 19.4 2
CJ97L010 9 0 1997-06-03 1997-06-09 N/A 1
J97C05Z 9 0 1997-02-12 1997-02-12 15.4 3
J97C26U 9 0 1997-02-17 1997-02-17 N/A 3
CJ97A010 8 0 1997-01-11 1997-01-11 19.8 2
CJ99V010 7 0 1999-11-07 1999-11-08 18.0 1
CJ99S040 6 0 1999-10-01 1999-10-01 N/A 6
J97G03F 6 0 1997-04-06 1997-04-06 N/A 2
J97G32D 6 0 1997-04-17 1997-04-17 N/A 3
J99R33G 6 0 1997-04-13 1997-04-13 N/A 2
PJ98Y020 6 0 1998-12-29 1998-12-29 18.4 2
CJ97D010 5 0 1997-02-20 1997-02-20 15.5 1
CJ96B020 4 0 1996-02-02 1996-02-02 N/A 4
CJ99H030 4 0 1999-04-24 1999-04-24 17.3 2
CJ99S030 4 0 1999-09-25 1999-09-25 13.6 2
PJ97B010 4 0 1997-02-04 1997-02-04 N/A 1
CJ99K020 3 0 1999-05-21 1999-05-21 16.8 1
J98W24U 3 0 1998-12-02 1998-12-02 18.1 1
J99H02X 3 0 1999-04-24 1999-04-24 16.8 1
PJ97V010 3 0 1997-11-04 1997-11-04 N/A 1

List of Observers

Observer Group Total MPECs
Unknown 20
J.Zhu, X.M.Teng 10
J.Zhu, X.Y.Li 6
J.Zhu, L.J.Ma 4
C.H.Liu, J.Zhu 3
C.M.Ma, H.J.Yan 2
J.Zhu, Y.J.Chen 2
B.Zhao, X.Y.Li 1
C.M.Ma.Y.J.Chen, H.J.Yan, X.Y.Li 1
H.J.Yan, X.Y.Li 1
C.M.Ma, J.Zhu 1
C.H.Liu, H.Wu, J.Zhu, R.Wang, S.L.Kong 1
J.Zhu, L.C.Deng, L.J.Ma, R.Chen 1
J.Zhu, L.J.Ma, Y.J.Chen, Z.Y.Zheng 1
J.Zhu, S.L.Kong 1
C.M.Ma, H.J.Yan, J.Yan, J.Zhu, L.C.Deng, T.G.Wang, W.Xu, X.Zhou, Y.J.Chen, Y.P.Li, Z.H.Shang 1
J.Zhu, X.M.Teng, X.Y.Li 1
J.Zhu, X.Y.Li, Y.J.Chen 1
J.Zhu, Y.J.Chen, Z.Y.Zheng 1
C.M.Ma, L.C.Deng, R.Chen, X.Y.Li, X.Zhou, Y.J.Chen 1
B.Zhao, J.Zhu, L.C.Deng, R.Chen, X.M.Teng, X.Y.Li, X.Zhou, Y.J.Chen 1
B.Zhao, J.Zhu, L.C.Deng, R.Chen, X.M.Teng, X.Y.Li, X.Zhou, Y.J.Chen, Z.Zheng 1
C.M.Ma, H.J.Yan, J.Zhu, L.J.Ma, R.Chen, X.Y.Li, Y.J.Chen 1
J.Zhu, R.Chen, X.Y.Li 1
J.Zhu, X.M.Teng, X.S.Liu 1
J.Zhu, X.Y.Li, X.Zhou 1
J.Zhu, R.H.Liu, X.Y.Li, X.Zhou, Y.K.Kim 1
X.Zhou, Y.J.Chen 1
H.T.Zhang, J.Zhu, X.M.Teng, Y.J.Chen, Z.Y.Zheng 1
Q.Qiao, Y.Qiu 1
C.M.Ma, H.J.Yan, J.Zhu, X.Y.Li, Y.J.Chen, Z.Y.Zheng 1
B.Zhao, R.Chen, X.M.Teng, X.Y.Li, X.Zhou, Y.J.Chen, Z.Y.Zheng 1
Y.J.Chen, Z.Y.Zheng 1
Individual Observer Total MPECs
J.Zhu 43
X.Y.Li 20
Unknown 20
X.M.Teng 16
Y.J.Chen 15
X.Zhou 8
C.M.Ma 7
H.J.Yan 7
L.J.Ma 7
R.Chen 7
Z.Y.Zheng 6
L.C.Deng 5
B.Zhao 4
C.H.Liu 4
S.L.Kong 2
C.M.Ma.Y.J.Chen 1
H.Wu 1
R.Wang 1
J.Yan 1
T.G.Wang 1
W.Xu 1
Y.P.Li 1
Z.H.Shang 1
Z.Zheng 1
X.S.Liu 1
R.H.Liu 1
Y.K.Kim 1
H.T.Zhang 1
Q.Qiao 1
Y.Qiu 1

List of Measurers

Measurer Group Total MPECs
Unknown 47
X.Y.Li, Y.J.Chen 4
J.Zhu, X.M.Teng, X.Y.Li 3
Y.J.Chen 3
C.M.Ma 2
J.Zhu, X.M.Teng, X.Y.Li, Y.J.Chen 2
J.Zhu, Y.J.Chen 2
C.M.Ma, J.Zhu, X.Y.Li 1
C.M.Ma, X.Y.Li 1
C.Y.Li 1
J.Zhu 1
J.Zhu, X.M.Teng 1
C.M.Ma, L.J.Ma, X.Y.Li, Y.J.Chen 1
X.M.Teng, X.Y.Li, Y.J.Chen 1
C.M.Ma, Y.J.Chen 1
C.M.Ma, J.Zhu, X.Y.Li, Y.J.Chen 1
C.M.Ma, J.L.Wang, J.Zhu, R.H.Liu, Y.J.Chen, Y.P.Li, Z.H.Shang 1
Individual Measurer Total MPECs
Unknown 47
Y.J.Chen 16
X.Y.Li 14
J.Zhu 12
C.M.Ma 8
X.M.Teng 7
C.Y.Li 1
L.J.Ma 1
J.L.Wang 1
R.H.Liu 1
Y.P.Li 1
Z.H.Shang 1

List of Facilities

Facilities Count
0.6-m Schmidt + CCD 51
0.60-m Schmidt 1
0.60-m Schmidt + CCD 1
Unknown 20