N55 Corona Borealis Observatory, Ngari, Tibet

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 6 0 0 3 0 0 0 0 3 0
2019 28 0 0 6 1 0 0 0 20 1
2018 7 0 0 3 0 0 0 0 4 0
2017 2 0 0 2 0 0 0 0 0 0
2016 1 0 0 1 0 0 0 0 0 0
2015 5 0 0 3 0 0 0 0 1 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 2020-K134 COMET P/2019 LD2 (ATLAS) 2020-05-23 01:02:00 Comet CATCH
2 MPEC 2020-K131 Comet C/2019 Y4 (ATLAS) 2020-05-22 20:52:00 Comet CATCH
3 MPEC 2020-J16 COMET C/2019 Y4 (ATLAS) 2020-05-01 22:19:00 Comet CATCH
4 MPEC 2020-H235 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2020-04-30 05:25:00 Comet CATCH
5 MPEC 2020-H67 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2020-04-21 06:11:00 Comet CATCH
6 MPEC 2020-H06 COMET P/2020 G1 (Pimentel) 2020-04-17 04:22:00 Comet CATCH
7 MPEC 2019-X100 2019 XW2 2019-12-09 21:08:00 NEA (18>H>22) CATCH
8 MPEC 2019-X49 DAILY ORBIT UPDATE (2019 December 4) 2019-12-04 12:03:00
9 MPEC 2019-V116 Observations and orbits of comets 2019-11-07 18:07:00 Comet CATCH
10 MPEC 2019-V34 COMET 2I/Borisov 2019-11-03 21:18:00 Comet CATCH
11 MPEC 2019-V08 2019 UO13 2019-11-01 15:42:00 NEA (H>22) CATCH
12 MPEC 2019-U289 2019 UD13 2019-10-31 21:56:00 NEA (H>22) CATCH
13 MPEC 2019-U163 COMET P/2006 W1 = 2019 U1 (Gibbs) 2019-10-25 19:36:00 Comet CATCH
14 MPEC 2019-U10 COMET C/2019 T3 (ATLAS) 2019-10-16 19:37:00 Comet CATCH
15 MPEC 2019-T99 COMET C/2018 DO4 (Lemmon) 2019-10-06 20:45:00 Comet CATCH
16 MPEC 2019-R106 COMET C/2019 Q4 (Borisov) 2019-09-11 20:40:00 Comet CATCH
17 MPEC 2019-R84 COMET P/2007 T4 = 2019 R2 (Gibbs) 2019-09-09 15:12:00 Comet CATCH
18 MPEC 2019-R83 COMET P/2008 Y1 = 2019 R1 (Boattini) 2019-09-09 14:54:00 Comet CATCH
19 MPEC 2019-Q135 OBSERVATIONS AND ORBITS OF COMETS 2019-08-30 13:34:00 Comet CATCH
20 MPEC 2019-N13 C/2019 K8 2019-07-01 21:17:00 ✓ Comet CATCH
21 MPEC 2019-N12 C/2019 K7 2019-07-01 20:42:00 Comet CATCH
22 MPEC 2019-N11 C/2019 L3 2019-07-01 20:01:00 Comet CATCH
23 MPEC 2019-M111 2019 MV1 2019-06-29 21:00:00 NEA (18>H>22) CATCH
24 MPEC 2019-M93 C/2019 L2 2019-06-28 16:46:00 Comet CATCH
25 MPEC 2019-M86 C/2019 K5 2019-06-27 21:51:00 Comet CATCH
26 MPEC 2019-M78 2019 KE7 2019-06-26 19:56:00 Unusual CATCH
27 MPEC 2019-M70 COMET C/2019 K4 2019-06-24 19:02:00 Comet CATCH
28 MPEC 2019-M14 2019 LZ4 2019-06-17 11:14:00 NEA (H>22) CATCH
29 MPEC 2019-L24 OBSERVATIONS AND ORBITS OF COMETS 2019-06-02 18:58:00 Comet CATCH
30 MPEC 2019-K14 COMET C/2019 J3 (ATLAS) 2019-05-23 18:24:00 Comet CATCH
31 MPEC 2019-K13 COMET C/2019 K1 (ATLAS) 2019-05-23 17:50:00 Comet CATCH
32 MPEC 2019-J142 OBSERVATIONS AND ORBITS OF COMETS 2019-05-15 14:22:00 Comet CATCH
33 MPEC 2019-J123 COMET C/2019 J2 (Palomar) 2019-05-13 00:16:00 Comet CATCH
34 MPEC 2019-J122 COMET C/2019 J1 (Lemmon) 2019-05-12 23:11:00 Comet CATCH
35 MPEC 2018-W59 COMET 46P/Wirtanen 2018-11-27 18:12:00 Comet CATCH
36 MPEC 2018-W46 COMET C/2018 V1 (Machholz-Fujikawa-Iwamoto) 2018-11-20 19:33:00 Comet CATCH
37 MPEC 2018-W03 COMET C/2018 V1 (Machholz-Fujikawa-Iwamoto) 2018-11-16 21:56:00 Comet CATCH
38 MPEC 2018-V151 COMET C/2018 V1 (Machholz-Fujikawa-Iwamoto) 2018-11-11 16:35:00 Comet CATCH
39 MPEC 2018-N31 2018 NV 2018-07-09 02:20:00 NEA (H>22) CATCH
40 MPEC 2018-N18 COMET C/2018 N1 (NEOWISE) 2018-07-06 00:54:00 Comet CATCH
41 MPEC 2018-N05 COMET C/2018 M1 (Catalina) 2018-07-02 01:23:00 Comet CATCH
42 MPEC 2017-X08 OBSERVATIONS AND ORBITS OF COMETS 2017-12-03 00:40:00 Comet CATCH
43 MPEC 2017-J52 OBSERVATIONS AND ORBITS OF COMETS 2017-05-07 04:08:00 Comet CATCH
44 MPEC 2016-U66 OBSERVATIONS AND ORBITS OF COMETS 2016-10-25 19:39:00 Comet CATCH
45 MPEC 2015-S04 COMET P/2015 Q1 (SCOTTI) 2015-09-16 11:43:00 Comet CATCH
46 MPEC 2015-R12 COMET 141P-H/Machholz 2015-09-06 19:48:00 Comet CATCH
47 MPEC 2015-Q71 OBSERVATIONS AND ORBITS OF COMETS 2015-08-27 21:49:00 Comet CATCH
48 MPEC 2015-Q41 2015 QN3 2015-08-21 21:33:00 NEA (18>H>22) CATCH
49 MPEC 2015-O51 2015 OA26 2015-07-25 14:10:00 ✓ NEA (H>22) CATCH
50 MPEC 2014-X44 OBSERVATIONS AND ORBITS OF COMETS 2014-12-07 23:59:00 Comet CATCH
51 MPEC 2014-W99 2014 WQ201 2014-11-25 20:02:00 NEA (H>22) CATCH
52 MPEC 2014-W77 2014 WZ120 2014-11-23 14:39:00 PHAg18 CATCH
53 MPEC 2014-W55 COMET C/2014 W2 (PANSTARRS) 2014-11-21 04:25:00 Comet CATCH
54 MPEC 2014-W05 OBSERVATIONS AND ORBITS OF COMETS 2014-11-16 22:06:00 Comet CATCH

List of Observers

Observers Count
T. Chen, J. Liu 39
T. Chen 161
T. Chen, L. K. Ming 9
T. Chen, K. M. Lau 47
P. Sun, T. Chen 17
T. Chen, P. Sun 78
T. Chen, P. Sun, D. W. E. Green 144
P. Sun, T. Chen, D. W. E. Green 29
J. Liu, P. Sun, T. Chen 3
T. Chen, P. Sun, J. Liu 121
P. Sun, T. Chen, D. W. E. Green, J. Liu 147
T. Chen, D. W. E. Green 15

List of Measurers

Measurers Count
P. Sun 20
T. Chen, P. Sun, D. W. E. Green 8
T. Chen 19
P. Sun, T. Chen 26
D. W. E. Green 208
P. Sun, T. Chen, D. W. E. Green 147
D. W. E. Green, T. Chen 16
D. W. E 4

List of Facilities

Facilities Count
0.3-m astrograph + CCD 129
0.3-m astrograph + CCD, 0.3-m f/9.9 Ritchey-Chretien + CCD 7
0.3-m f/4 reflector + CCD 3
0.3-m f/7.2 reflector + CCD 668
0.4-m f/3.8 reflector + CCD 3