N55 Corona Borealis Observatory, Ngari, Tibet

Last update: UTC 2026-02-27 07:57:57

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 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 6 0 0 3 0 0 0 0 3 0
2019 26 0 0 5 1 0 0 0 19 1
2018 4 0 0 3 0 0 0 0 1 0
2017 2 0 0 2 0 0 0 0 0 0
2016 1 0 0 1 0 0 0 0 0 0
2015 6 0 0 3 0 0 0 0 2 1
2014 5 0 0 3 0 0 0 0 2 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 2014-W05 OBSERVATIONS AND ORBITS OF COMETS 2014-11-16 22:06:00 Comet CATCH
2 MPEC 2014-W55 COMET C/2014 W2 (PANSTARRS) 2014-11-21 04:25:00 Comet CATCH
3 MPEC 2014-W77 2014 WZ120 2014-11-23 14:39:00 PHAg18 CATCH
4 MPEC 2014-W99 2014 WQ201 2014-11-25 20:02:00 NEA (H>22) CATCH
5 MPEC 2014-X44 OBSERVATIONS AND ORBITS OF COMETS 2014-12-07 23:59:00 Comet CATCH
6 MPEC 2015-O51 2015 OA26 2015-07-25 14:10:00 NEA (H>22) CATCH
7 MPEC 2015-Q41 2015 QN3 2015-08-21 21:33:00 NEA (18>H>22) CATCH
8 MPEC 2015-Q71 OBSERVATIONS AND ORBITS OF COMETS 2015-08-27 21:49:00 Comet CATCH
9 MPEC 2015-R12 COMET 141P-H/Machholz 2015-09-06 19:48:00 Comet CATCH
10 MPEC 2015-S04 COMET P/2015 Q1 (SCOTTI) 2015-09-16 11:43:00 Comet CATCH
11 MPEC 2016-U66 OBSERVATIONS AND ORBITS OF COMETS 2016-10-25 19:39:00 Comet CATCH
12 MPEC 2017-J52 OBSERVATIONS AND ORBITS OF COMETS 2017-05-07 04:08:00 Comet CATCH
13 MPEC 2017-X08 OBSERVATIONS AND ORBITS OF COMETS 2017-12-03 00:40:00 Comet CATCH
14 MPEC 2018-V151 COMET C/2018 V1 (Machholz-Fujikawa-Iwamoto) 2018-11-11 16:35:00 Comet CATCH
15 MPEC 2018-W03 COMET C/2018 V1 (Machholz-Fujikawa-Iwamoto) 2018-11-16 21:56:00 Comet CATCH
16 MPEC 2018-W46 COMET C/2018 V1 (Machholz-Fujikawa-Iwamoto) 2018-11-20 19:33:00 Comet CATCH
17 MPEC 2018-W59 COMET 46P/Wirtanen 2018-11-27 18:12:00 Comet CATCH
18 MPEC 2019-J122 COMET C/2019 J1 (Lemmon) 2019-05-12 23:11:00 Comet CATCH
19 MPEC 2019-J123 COMET C/2019 J2 (Palomar) 2019-05-13 00:16:00 Comet CATCH
20 MPEC 2019-J142 OBSERVATIONS AND ORBITS OF COMETS 2019-05-15 14:22:00 Comet CATCH
21 MPEC 2019-K13 COMET C/2019 K1 (ATLAS) 2019-05-23 17:50:00 Comet CATCH
22 MPEC 2019-K14 COMET C/2019 J3 (ATLAS) 2019-05-23 18:24:00 Comet CATCH
23 MPEC 2019-L24 OBSERVATIONS AND ORBITS OF COMETS 2019-06-02 18:58:00 Comet CATCH
24 MPEC 2019-M14 2019 LZ4 2019-06-17 11:14:00 NEA (H>22) CATCH
25 MPEC 2019-M70 COMET C/2019 K4 2019-06-24 19:02:00 Comet CATCH
26 MPEC 2019-M78 2019 KE7 2019-06-26 19:56:00 Unusual CATCH
27 MPEC 2019-M86 C/2019 K5 2019-06-27 21:51:00 Comet CATCH
28 MPEC 2019-M93 C/2019 L2 2019-06-28 16:46:00 Comet CATCH
29 MPEC 2019-M111 2019 MV1 2019-06-29 21:00:00 NEA (18>H>22) CATCH
30 MPEC 2019-N11 C/2019 L3 2019-07-01 20:01:00 Comet CATCH
31 MPEC 2019-N12 C/2019 K7 2019-07-01 20:42:00 Comet CATCH
32 MPEC 2019-N13 C/2019 K8 2019-07-01 21:17:00 Comet CATCH
33 MPEC 2019-Q135 OBSERVATIONS AND ORBITS OF COMETS 2019-08-30 13:34:00 Comet CATCH
34 MPEC 2019-R83 COMET P/2008 Y1 = 2019 R1 (Boattini) 2019-09-09 14:54:00 Comet CATCH
35 MPEC 2019-R84 COMET P/2007 T4 = 2019 R2 (Gibbs) 2019-09-09 15:12:00 Comet CATCH
36 MPEC 2019-R106 COMET C/2019 Q4 (Borisov) 2019-09-11 20:40:00 Comet CATCH
37 MPEC 2019-T99 COMET C/2018 DO4 (Lemmon) 2019-10-06 20:45:00 Comet CATCH
38 MPEC 2019-V08 2019 UO13 2019-11-01 15:42:00 NEA (H>22) CATCH
39 MPEC 2019-V34 COMET 2I/Borisov 2019-11-03 21:18:00 Comet CATCH
40 MPEC 2019-V116 Observations and orbits of comets 2019-11-07 18:07:00 Comet CATCH
41 MPEC 2019-X49 DAILY ORBIT UPDATE (2019 December 4) 2019-12-04 12:03:00
42 MPEC 2019-X100 2019 XW2 2019-12-09 21:08:00 PHAg18 CATCH
43 MPEC 2020-H06 COMET P/2020 G1 (Pimentel) 2020-04-17 04:22:00 Comet CATCH
44 MPEC 2020-H67 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2020-04-21 06:11:00 Comet CATCH
45 MPEC 2020-H235 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2020-04-30 05:25:00 Comet CATCH
46 MPEC 2020-J16 COMET C/2019 Y4 (ATLAS) 2020-05-01 22:19:00 Comet CATCH
47 MPEC 2020-K131 Comet C/2019 Y4 (ATLAS) 2020-05-22 20:52:00 Comet CATCH
48 MPEC 2020-K134 COMET P/2019 LD2 (ATLAS) 2020-05-23 01:02:00 Comet CATCH

Objects Observed by This Station

Object Observations Discoveries First Obs Last Obs Magnitude MPECs
CK19K070 3886 0 2019-06-01 2019-06-14 20.4 67
0123P 2646 0 2019-04-05 2019-04-08 19.0 98
0046P 1700 0 2018-11-16 2018-11-16 10.5 85
CK11J020 1199 0 2014-11-14 2015-07-25 22.2 109
0110P 980 0 2014-11-25 2014-11-25 21.2 98
0017P 954 0 2014-11-25 2014-11-25 18.0 159
CK19L030 702 0 2019-06-26 2019-06-26 18.4 117
CK19K050 684 0 2019-05-25 2019-06-14 20.0 9
0060P 624 0 2018-11-18 2019-04-08 N/A 39
CK19K080 600 0 2019-05-27 2019-06-09 17.8 10
CK14Q020 560 0 2015-07-25 2015-08-24 11.0 40
CK18V010 540 0 2018-11-08 2018-11-19 9.1 5
0108P 528 0 2014-11-11 2014-11-25 18.6 48
0002I 480 0 2019-10-14 2019-10-31 17.3 24
0032P 447 0 2014-11-05 2014-11-05 15.6 149
CK19K010 420 0 2019-05-18 2019-05-22 19.8 14
K19X02W 343 0 2019-12-07 2019-12-07 22.8 49
CK14W020 310 0 2014-11-18 2014-11-18 16.9 31
CK13V040 290 0 2014-11-02 2014-11-02 20.1 58
K15Q03N 260 0 2015-08-20 2015-08-20 21.8 20
CK19K040 240 0 2019-06-02 2019-06-09 16.6 8
0038P 195 0 2018-11-18 2019-04-08 18.3 13
CK15F040 190 0 2015-07-25 2015-08-24 23.6 19
CK18D04O 187 0 2019-09-04 2019-09-09 23.6 11
PK19L02D 162 0 2019-06-13 2019-06-14 18.6 27
PK20G010 152 0 2020-04-16 2020-04-25 21.0 8
CK19J010 144 0 2019-05-08 2019-05-12 18.8 9
CK19J020 140 0 2019-05-11 2019-05-18 15.8 7
0041P 138 0 2017-04-26 2017-04-26 20.1 46
CK19J030 132 0 2019-05-16 2019-05-21 18.5 6
K14WC0Z 130 0 2014-11-22 2014-11-22 N/A 13
0226P 129 0 2016-10-24 2016-10-24 18.0 43
K19M01V 115 0 2019-06-27 2019-06-27 20.6 23
CK19Q040 112 0 2019-09-05 2019-09-10 18.2 7
CK15V020 93 0 2017-04-26 2017-04-26 17.2 31
K14WK1Q 85 0 2014-11-25 2014-11-25 19.0 17
K19U13O 80 0 2019-10-31 2019-10-31 18.5 20
PK15Q010 77 0 2015-08-26 2015-08-27 19.0 11
CK16T030 52 0 2016-10-17 2016-10-17 N/A 13
CK17O010 48 0 2017-11-23 2017-11-23 14.1 16
CK19Y04a 48 0 2020-04-14 2020-04-14 16.5 4
PK07T040 42 0 2019-09-06 2019-09-08 18.5 6
0141P h 27 0 2015-08-24 2015-08-27 19.6 3
K15O26A 21 0 2015-07-23 2015-07-23 18.9 7
K19L04Z 15 0 2019-06-10 2019-06-10 19.4 5
PK19R010 13 0 2019-09-04 2019-09-08 16.7 1
CK19L020 12 0 2019-06-13 2019-06-13 19.3 2
PK19U010 4 0 2019-10-24 2019-10-24 17.2 1
K19K07E 3 0 2019-05-30 2019-05-30 N/A 1

List of Observers

Observer Group Total MPECs
T.Chen 17
P.Sun, T.Chen 8
J.Liu, P.Sun, T.Chen 7
D.W.E.Green, P.Sun, T.Chen 5
K.M.Lau, T.Chen 3
D.W.E.Green, T.Chen 2
J.Liu, T.Chen 2
Unknown 2
D.W.E.Green, J.Liu, P.Sun, T.Chen 1
L.K.Ming, T.Chen 1
Individual Observer Total MPECs
T.Chen 46
P.Sun 21
J.Liu 10
D.W.E.Green 8
K.M.Lau 3
Unknown 2
L.K.Ming 1

List of Measurers

Measurer Group Total MPECs
Unknown 21
D.W.E.Green 15
P.Sun 3
T.Chen 3
P.Sun, T.Chen 2
D.W.E.Green, P.Sun, T.Chen 2
D.W.E 1
D.W.E.Green, T.Chen 1
Individual Measurer Total MPECs
Unknown 21
D.W.E.Green 18
T.Chen 8
P.Sun 7
D.W.E 1

List of Facilities

Facilities Count
0.3-m astrograph + CCD 11
0.3-m astrograph + CCD, 0.3-m f/9.9 Ritchey-Chretien + CCD 1
0.3-m f/4 reflector + CCD 1
0.3-m f/7.2 reflector + CCD 33
Unknown 2