O49 Purple Mountain Observatory, Yaoan Station

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Graphs

Yearly Breakdown of MPEC Types

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 13 0 0 1 8 0 0 0 3 1
2022 1 0 0 0 0 0 0 0 1 0
2021 2 0 0 0 1 0 0 0 1 0
2020 4 0 0 1 1 0 0 0 2 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 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

Download as csv

List of Individual MPECs

Index Name Date/Time Discoverer First-responding Confirmer Object Type Search Archival Image
1 MPEC 2023-W105 2023 WO2 2023-11-23 14:14:00 NEA (H>22) CATCH
2 MPEC 2023-K125 DAILY ORBIT UPDATE (2023 May 24) 2023-05-24 13:08:00
3 MPEC 2023-K115 DAILY ORBIT UPDATE (2023 May 23) 2023-05-23 13:07:00
4 MPEC 2023-H166 DAILY ORBIT UPDATE (2023 April 24) 2023-04-24 12:25:00
5 MPEC 2023-H109 DAILY ORBIT UPDATE (2023 April 20) 2023-04-20 12:18:00
6 MPEC 2023-F140 2023 FA4 2023-03-26 06:01:00 ✓ NEA (18>H>22) CATCH
7 MPEC 2023-F134 DAILY ORBIT UPDATE (2023 March 25) 2023-03-25 12:02:00
8 MPEC 2023-F123 2018 RW6 2023-03-24 12:49:00 NEA (18>H>22) CATCH
9 MPEC 2023-F116 DAILY ORBIT UPDATE (2023 March 23) 2023-03-23 12:46:00
10 MPEC 2023-F72 DAILY ORBIT UPDATE (2023 March 20) 2023-03-20 12:27:00
11 MPEC 2023-F08 2023 EJ2 2023-03-16 02:34:00 NEA (18>H>22) CATCH
12 MPEC 2023-E59 COMET C/2023 E1 (ATLAS) 2023-03-12 03:18:00 Comet CATCH
13 MPEC 2023-E34 DAILY ORBIT UPDATE (2023 March 3) 2023-03-03 12:36:00
14 MPEC 2022-A05 2022 AA 2022-01-02 21:12:00 PHAg18 CATCH
15 MPEC 2021-Y79 2021 YS 2021-12-31 18:59:00 NEA (18>H>22) CATCH
16 MPEC 2021-V274 DAILY ORBIT UPDATE (2021 November 12) 2021-11-12 12:29:00
17 MPEC 2020-Q141 2020 QK3 2020-08-21 02:36:00 Unusual CATCH
18 MPEC 2020-K117 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2020-05-22 05:55:00 Comet CATCH
19 MPEC 2020-E28 DAILY ORBIT UPDATE (2020 March 7) 2020-03-07 12:05:00
20 MPEC 2020-D143 2020 DM4 2020-02-29 18:57:00 PHAg18 CATCH

List of Observers

Observers Count
F. Li, Y. Yuan, J. Chen, A. Zhu, Y. Fu 25
F. Li, Y. Yuan, J. Chen, A. Zhu, Y. N. Fu 15

List of Measurers

Measurers Count
B. Li, H. B. Zhao 40
Facilities Count
0.8-m f/10 Ritchey-Chretien + 2048 CCD 2
0.8-m f/10 Ritchey- Chretien + 2048 CCD 23
0.8-m f/10 Ritchey- Chretien +2048 CCD 15