N87 Nanshan Station, Xinjiang Observatory

Last update: UTC 2026-03-09 19:33:33

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 0 0 0 0 0 0 0 0 0 0
2025 3 0 0 0 1 0 0 0 1 1
2024 8 0 0 2 5 0 0 0 1 0
2023 12 0 2 2 6 0 0 0 1 1
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 2 0 0 0 2 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 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 2017-R05 DAILY ORBIT UPDATE (2017 SEPT. 1 UT) 2017-09-01 12:03:00
2 MPEC 2017-R26 DAILY ORBIT UPDATE (2017 SEPT. 3 UT) 2017-09-03 12:03:00
3 MPEC 2023-C144 DAILY ORBIT UPDATE (2023 February 14) 2023-02-14 12:13:00
4 MPEC 2023-C155 DAILY ORBIT UPDATE (2023 February 15) 2023-02-15 12:02:00
5 MPEC 2023-D41 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-02-22 07:38:00 Comet CATCH
6 MPEC 2023-E20 2023 DB2 2023-03-02 11:35:00 NEA (18>H>22) CATCH
7 MPEC 2023-K53 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2023-05-19 01:52:00 Comet CATCH
8 MPEC 2023-T91 DAILY ORBIT UPDATE (2023 October 8) 2023-10-08 12:44:00
9 MPEC 2023-T120 DAILY ORBIT UPDATE (2023 October 9) 2023-10-09 13:01:00
10 MPEC 2023-V74 2023 VB2 2023-11-06 23:24:00 NEA (H>22) CATCH
11 MPEC 2023-V97 2023 VX2 2023-11-07 14:20:00 NEA (H>22) CATCH
12 MPEC 2023-V127 DAILY ORBIT UPDATE (2023 November 9) 2023-11-09 12:23:00
13 MPEC 2023-W85 DAILY ORBIT UPDATE (2023 November 22) 2023-11-22 12:06:00
14 MPEC 2024-A74 DAILY ORBIT UPDATE (2024 January 8) 2024-01-08 12:09:00
15 MPEC 2024-E109 DAILY ORBIT UPDATE (2024 March 7) 2024-03-07 12:07:00
16 MPEC 2024-E157 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-03-12 19:32:00 Comet CATCH
17 MPEC 2024-G193 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-04-13 23:03:00 Comet CATCH
18 MPEC 2024-L04 COMET P/2024 FG9 (Nanshan-Hahn) 2024-06-01 04:41:00 Comet CATCH
19 MPEC 2024-Y98 DAILY ORBIT UPDATE (2024 December 25) 2024-12-25 12:24:00
20 MPEC 2024-Y132 DAILY ORBIT UPDATE (2024 December 27) 2024-12-27 12:29:00
21 MPEC 2024-Y217 DAILY ORBIT UPDATE (2024 December 30) 2024-12-30 12:09:00
22 MPEC 2025-K57 DAILY ORBIT UPDATE (2025 May 23) 2025-05-23 12:03:00
23 MPEC 2025-K116 2025 KU4 2025-05-28 10:59:00 NEA (18>H>22) CATCH

Objects Observed by This Station

Object Observations Discoveries First Obs Last Obs Magnitude MPECs
K23D02B 84 14 2023-02-26 2023-02-26 21.1 14
K23V02B 6 2 2023-11-05 2023-11-05 15.1 2
01943 2487 0 2023-11-18 2023-11-18 14.2 829
05693 1185 0 2024-03-04 2024-03-04 19.2 395
07753 1152 0 2023-02-12 2023-02-13 21.9 192
0065P 927 0 2024-04-07 2024-04-07 20.0 309
X1792 522 0 2024-01-04 2024-01-04 21.3 174
g0302 483 0 2024-01-05 2024-01-05 16.2 161
0032P 447 0 2024-03-05 2024-03-05 15.6 149
CK22L020 282 0 2023-05-10 2023-05-10 20.2 94
P6670 207 0 2024-12-19 2024-12-19 21.2 69
0402P 147 0 2023-02-13 2023-02-13 21.3 49
K12D61H 102 0 2024-12-26 2024-12-26 21.5 34
K17N06L 96 0 2017-08-30 2017-08-30 N/A 32
j5148 93 0 2023-11-07 2023-11-07 22.1 31
K25K04U 81 0 2025-05-25 2025-05-25 21.5 27
K22M01S 72 0 2023-10-07 2023-10-07 18.4 24
K17Q34V 60 0 2017-08-31 2017-08-31 N/A 30
K23N00F 51 0 2023-10-06 2023-10-06 21.2 17
K24Y01U 51 0 2024-12-28 2024-12-28 18.6 17
K24F02Z 33 0 2025-05-22 2025-05-22 21.5 11
w5185 33 0 2024-01-04 2024-01-04 21.3 11
K24U03F 30 0 2024-12-26 2024-12-26 20.8 10
PK24F09G 30 0 2024-03-08 2024-03-08 16.5 10
K17P26V 22 0 2017-08-31 2017-08-31 21.8 11
K23V02X 21 0 2023-11-05 2023-11-05 20.6 7

List of Observers

Observer Group Total MPECs
Unknown 14
G.-J.Feng, G.-Y.Sun, M.Zhang, U.Mahmut, X.Gao 2
A.Esamdin, C.H.Bai, G.J.Feng, G.Sun, L.Ma, L.Tang, M.Zhang, N.Wang, Q.Yin, W.Zhou, X.Gao, X.Liao, Z.Chen, Z.Yang 1
G.J.Feng, G.Sun, H.B.Niu, M.Zhang, X.Gao 1
G.J.Feng, G.Sun, M.Zhang, X.Gao, X.Zhang 1
A.Esamdin, A.Iskandar, C.-H.Bai, G.-J.Feng, G.-Y.Sun, L.-M.Tang, L.Ma, M.Zhang, N.Wang, W.-J.Zhou, X.Gao, X.Liao, Z.-S.Yang, Z.-Y.Chen 1
A.Iskandar, G.-J.Feng, G.-Y.Sun, M.Zhang, X.Gao 1
G.-J.Feng, G.-Y.Sun, M.Zhang, S.Yaqup, X.Gao 1
A.Esamdin, C.-H.Bai, G.-J.Feng, G.-Y.Sun, L.Ma, M.Zhang, N.Wang, S.Yaqup, X.Gao, X.Liao 1
Individual Observer Total MPECs
Unknown 14
M.Zhang 9
X.Gao 9
G.-J.Feng 6
G.-Y.Sun 6
A.Esamdin 3
G.J.Feng 3
G.Sun 3
L.Ma 3
N.Wang 3
X.Liao 3
A.Iskandar 2
C.-H.Bai 2
S.Yaqup 2
U.Mahmut 2
C.H.Bai 1
L.Tang 1
Q.Yin 1
W.Zhou 1
Z.Chen 1
Z.Yang 1
H.B.Niu 1
X.Zhang 1
L.-M.Tang 1
W.-J.Zhou 1
Z.-S.Yang 1
Z.-Y.Chen 1

List of Measurers

Measurer Group Total MPECs
Unknown 14
M.Zhang 2
M.Zhang, X.Liao 2
M.Zhang, X.Liao, Z.Yang 1
M.Zhang, X.Liao, Z.-S.Yang 1
M.Zhang, W.-J.Zhou, X.Liao, Z.-S.Yang 1
L.-M.Tang, M.Zhang, W.-J.Zhou, X.Liao, Z.-S.Yang, Z.-Y.Chen 1
G.Sun, M.Zhang, W.Zhou, Z.Yang 1
Individual Measurer Total MPECs
Unknown 14
M.Zhang 9
X.Liao 6
Z.-S.Yang 3
Z.Yang 2
W.-J.Zhou 2
L.-M.Tang 1
Z.-Y.Chen 1
G.Sun 1
W.Zhou 1

List of Facilities

Facilities Count
1.0-m f/2.2 reflector + CCD 8
1.00-m f/2.2 reflector + CCD 1
Unknown 14