P13 Baihuashan Observatory, Beijing

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
2025 45 0 0 1 4 0 0 0 39 1
2024 131 0 0 3 14 0 0 0 99 15
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 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 2025-D44 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2025-02-20 21:36:00 Comet CATCH
2 MPEC 2025-D28 DAILY ORBIT UPDATE (2025 February 19) 2025-02-19 12:09:00
3 MPEC 2025-D09 2025 DB 2025-02-17 21:56:00 NEA (H>22) CATCH
4 MPEC 2025-C174 2025 CJ4 2025-02-15 16:50:00 NEA (H>22) CATCH
5 MPEC 2025-C168 2025 CH4 2025-02-14 11:58:00 PHAg18 CATCH
6 MPEC 2025-C158 COMET P/2025 C1 (ATLAS) 2025-02-10 16:56:00 Comet CATCH
7 MPEC 2025-C143 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2025-02-08 19:17:00 Comet CATCH
8 MPEC 2025-C49 2025 CJ1 2025-02-05 08:46:00 NEA (H>22) CATCH
9 MPEC 2025-C41 2025 CB1 2025-02-04 21:21:00 NEA (H>22) CATCH
10 MPEC 2025-C40 2025 CA1 2025-02-04 20:42:00 NEA (H>22) CATCH
11 MPEC 2025-C28 2025 CQ 2025-02-03 22:49:00 NEA (H>22) CATCH
12 MPEC 2025-C22 DAILY ORBIT UPDATE (2025 February 3) 2025-02-03 12:27:00
13 MPEC 2025-C21 2025 CM 2025-02-03 11:33:00 NEA (H>22) CATCH
14 MPEC 2025-C18 2025 CJ 2025-02-03 03:36:00 NEA (H>22) CATCH
15 MPEC 2025-C17 2025 CH 2025-02-03 03:35:00 NEA (H>22) CATCH
16 MPEC 2025-C15 2025 CF 2025-02-03 03:32:00 NEA (H>22) CATCH
17 MPEC 2025-C11 2025 CB 2025-02-02 21:16:00 NEA (H>22) CATCH
18 MPEC 2025-B184 2025 BQ7 2025-01-30 21:46:00 NEA (H>22) CATCH
19 MPEC 2025-B174 DAILY ORBIT UPDATE (2025 January 29) 2025-01-29 12:23:00
20 MPEC 2025-B169 2025 BN6 2025-01-29 00:36:00 NEA (H>22) CATCH
21 MPEC 2025-B118 2025 BC4 2025-01-25 23:34:00 NEA (H>22) CATCH
22 MPEC 2025-B103 2025 BE3 2025-01-24 21:52:00 NEA (18>H>22) CATCH
23 MPEC 2025-B75 2025 BG2 2025-01-23 15:06:00 NEA (H>22) CATCH
24 MPEC 2025-B59 2025 BO1 2025-01-22 16:12:00 NEA (H>22) CATCH
25 MPEC 2025-B54 DAILY ORBIT UPDATE (2025 January 22) 2025-01-22 12:09:00
26 MPEC 2025-B22 2025 BK 2025-01-20 06:17:00 NEA (H>22) CATCH
27 MPEC 2025-B21 2025 BJ 2025-01-19 21:44:00 NEA (H>22) CATCH
28 MPEC 2025-B20 2025 BH 2025-01-19 17:24:00 NEA (H>22) CATCH
29 MPEC 2025-B19 2025 BG 2025-01-19 17:22:00 NEA (18>H>22) CATCH
30 MPEC 2025-B18 2025 BF 2025-01-19 14:53:00 NEA (H>22) CATCH
31 MPEC 2025-B17 2025 BE 2025-01-19 14:51:00 NEA (H>22) CATCH
32 MPEC 2025-B10 2025 BD 2025-01-18 16:44:00 NEA (H>22) CATCH
33 MPEC 2025-B09 2025 BC 2025-01-18 13:07:00 NEA (H>22) CATCH
34 MPEC 2025-B07 2025 BB 2025-01-17 23:44:00 NEA (18>H>22) CATCH
35 MPEC 2025-B03 2025 BA 2025-01-17 13:10:00 NEA (H>22) CATCH
36 MPEC 2025-A165 2025 AU3 2025-01-11 15:18:00 NEA (H>22) CATCH
37 MPEC 2025-A88 2025 AN1 2025-01-05 18:06:00 NEA (H>22) CATCH
38 MPEC 2025-A85 2025 AL1 2025-01-05 09:46:00 NEA (H>22) CATCH
39 MPEC 2025-A82 2025 AH1 2025-01-04 23:33:00 NEA (H>22) CATCH
40 MPEC 2025-A81 2025 AG1 2025-01-04 23:31:00 NEA (H>22) CATCH
41 MPEC 2025-A39 2025 AG 2025-01-03 00:06:00 NEA (H>22) CATCH
42 MPEC 2025-A16 2024 YX12 2025-01-02 02:36:00 NEA (18>H>22) CATCH
43 MPEC 2025-A13 2024 YM12 2025-01-01 22:47:00 NEA (H>22) CATCH
44 MPEC 2025-A12 2024 YR11 2025-01-01 20:57:00 NEA (H>22) CATCH
45 MPEC 2025-A10 2024 YJ11 2025-01-01 16:15:00 NEA (H>22) CATCH
46 MPEC 2024-Y227 2024 YX8 2024-12-30 19:59:00 NEA (H>22) CATCH
47 MPEC 2024-Y197 2024 YH7 2024-12-29 18:16:00 NEA (H>22) CATCH
48 MPEC 2024-Y149 2024 YY4 2024-12-28 00:06:00 NEA (H>22) CATCH
49 MPEC 2024-Y117 2024 YZ3 2024-12-26 13:17:00 NEA (H>22) CATCH
50 MPEC 2024-Y104 2024 YJ3 2024-12-25 23:28:00 NEA (18>H>22) CATCH
51 MPEC 2024-Y85 2024 YM2 2024-12-24 14:19:00 NEA (H>22) CATCH
52 MPEC 2024-Y82 2024 YJ2 2024-12-24 14:16:00 NEA (H>22) CATCH
53 MPEC 2024-Y64 2024 YU1 2024-12-23 20:46:00 NEA (H>22) CATCH
54 MPEC 2024-Y44 2024 YA1 2024-12-22 18:20:00 NEA (H>22) CATCH
55 MPEC 2024-Y28 2014 AA53 2024-12-21 14:12:00 NEA (18>H>22) CATCH
56 MPEC 2024-Y17 2024 YD 2024-12-20 15:21:00 NEA (H>22) CATCH
57 MPEC 2024-Y16 2024 YC 2024-12-20 15:20:00 NEA (H>22) CATCH
58 MPEC 2024-X313 2024 XB17 2024-12-13 04:16:00 NEA (H>22) CATCH
59 MPEC 2024-X311 2021 XB6 2024-12-12 17:23:00 NEA (H>22) CATCH
60 MPEC 2024-X309 DAILY ORBIT UPDATE (2024 December 12) 2024-12-12 12:07:00
61 MPEC 2024-X303 2024 XS16 2024-12-12 06:14:00 NEA (H>22) CATCH
62 MPEC 2024-X302 2024 XR16 2024-12-12 06:14:00 NEA (H>22) CATCH
63 MPEC 2024-X300 2024 XP16 2024-12-11 21:04:00 NEA (H>22) CATCH
64 MPEC 2024-X284 2024 XZ15 2024-12-11 02:58:00 NEA (H>22) CATCH
65 MPEC 2024-X278 2024 XR15 2024-12-10 18:48:00 NEA (H>22) CATCH
66 MPEC 2024-X216 2024 WV51 2024-12-08 02:52:00 NEA (H>22) CATCH
67 MPEC 2024-X171 2024 XA6 2024-12-06 21:06:00 NEA (H>22) CATCH
68 MPEC 2024-X61 DAILY ORBIT UPDATE (2024 December 3) 2024-12-03 12:30:00
69 MPEC 2024-X43 2024 XH 2024-12-02 20:31:00 NEA (H>22) CATCH
70 MPEC 2024-W200 2024 WX13 2024-11-30 21:00:00 NEA (H>22) CATCH
71 MPEC 2024-W189 2024 WG12 2024-11-30 13:10:00 NEA (H>22) CATCH
72 MPEC 2024-W180 2024 WL6 2024-11-29 14:26:00 NEA (H>22) CATCH
73 MPEC 2024-W108 2024 WQ2 2024-11-24 21:20:00 NEA (H>22) CATCH
74 MPEC 2024-W101 2024 WK2 2024-11-24 18:48:00 NEA (18>H>22) CATCH
75 MPEC 2024-W85 2024 WP1 2024-11-23 15:11:00 NEA (H>22) CATCH
76 MPEC 2024-W67 2024 WC1 2024-11-23 00:45:00 NEA (18>H>22) CATCH
77 MPEC 2024-W62 2024 WY 2024-11-22 15:36:00 NEA (H>22) CATCH
78 MPEC 2024-W56 2024 WU 2024-11-22 09:39:00 NEA (H>22) CATCH
79 MPEC 2024-W55 2024 WT 2024-11-22 09:38:00 NEA (H>22) CATCH
80 MPEC 2024-W50 2024 WO 2024-11-22 04:43:00 NEA (H>22) CATCH
81 MPEC 2024-W49 2024 WN 2024-11-22 04:40:00 NEA (H>22) CATCH
82 MPEC 2024-W30 2024 WC 2024-11-20 16:49:00 NEA (H>22) CATCH
83 MPEC 2024-W13 2024 WA 2024-11-19 02:06:00 NEA (H>22) CATCH
84 MPEC 2024-V142 2024 VB3 2024-11-11 13:41:00 NEA (H>22) CATCH
85 MPEC 2024-V92 DAILY ORBIT UPDATE (2024 November 7) 2024-11-07 12:15:00
86 MPEC 2024-V40 2024 VJ 2024-11-03 01:55:00 NEA (H>22) CATCH
87 MPEC 2024-V22 2024 VD 2024-11-01 23:28:00 NEA (H>22) CATCH
88 MPEC 2024-V20 2024 VB 2024-11-01 22:25:00 NEA (H>22) CATCH
89 MPEC 2024-V19 2024 VA 2024-11-01 22:22:00 NEA (H>22) CATCH
90 MPEC 2024-U223 2024 UV7 2024-10-30 01:14:00 NEA (H>22) CATCH
91 MPEC 2024-U216 2024 UB7 2024-10-29 13:56:00 NEA (H>22) CATCH
92 MPEC 2024-U92 2024 UF2 2024-10-25 11:56:00 NEA (H>22) CATCH
93 MPEC 2024-U53 2024 UU 2024-10-23 21:36:00 NEA (H>22) CATCH
94 MPEC 2024-U51 2024 US 2024-10-23 21:34:00 NEA (H>22) CATCH
95 MPEC 2024-U48 2024 UP 2024-10-23 15:10:00 NEA (H>22) CATCH
96 MPEC 2024-U26 2024 UF 2024-10-21 00:06:00 NEA (H>22) CATCH
97 MPEC 2024-T259 COMET P/2024 S2 (Rankin) 2024-10-12 03:13:00 Comet CATCH
98 MPEC 2024-T220 2024 TM8 2024-10-10 01:36:00 NEA (H>22) CATCH
99 MPEC 2024-T216 2024 TD7 2024-10-09 15:06:00 NEA (H>22) CATCH
100 MPEC 2024-T197 2024 TD6 2024-10-08 18:15:00 NEA (H>22) CATCH
101 MPEC 2024-T196 2024 TY5 2024-10-08 16:45:00 NEA (H>22) CATCH
102 MPEC 2024-T195 2024 TX5 2024-10-08 16:15:00 NEA (H>22) CATCH
103 MPEC 2024-T153 DAILY ORBIT UPDATE (2024 October 6) 2024-10-06 12:37:00
104 MPEC 2024-T147 2024 TJ3 2024-10-06 11:01:00 NEA (H>22) CATCH
105 MPEC 2024-T120 2024 TK2 2024-10-05 19:47:00 NEA (H>22) CATCH
106 MPEC 2024-T117 2024 TH2 2024-10-05 16:17:00 NEA (18>H>22) CATCH
107 MPEC 2024-T101 2024 TY1 2024-10-05 11:07:00 NEA (H>22) CATCH
108 MPEC 2024-T89 2024 TN1 2024-10-04 21:53:00 PHAg18 CATCH
109 MPEC 2024-T78 DAILY ORBIT UPDATE (2024 October 4) 2024-10-04 12:30:00
110 MPEC 2024-T50 2024 TH 2024-10-03 01:16:00 NEA (H>22) CATCH
111 MPEC 2024-T13 2024 SY6 2024-10-01 11:37:00 NEA (H>22) CATCH
112 MPEC 2024-S65 2024 SC1 2024-09-25 23:39:00 NEA (H>22) CATCH
113 MPEC 2024-S52 2024 SR 2024-09-25 02:45:00 NEA (H>22) CATCH
114 MPEC 2024-S42 2024 RH45 2024-09-24 02:31:00 NEA (H>22) CATCH
115 MPEC 2024-S41 2024 SH 2024-09-24 02:30:00 NEA (H>22) CATCH
116 MPEC 2024-R345 2024 RB22 2024-09-14 05:55:00 NEA (H>22) CATCH
117 MPEC 2024-R294 2024 RA14 2024-09-12 15:47:00 NEA (H>22) CATCH
118 MPEC 2024-R56 2024 RM1 2024-09-04 05:42:00 NEA (H>22) CATCH
119 MPEC 2024-R28 2024 RK 2024-09-03 04:40:00 NEA (H>22) CATCH
120 MPEC 2024-R23 2024 RE 2024-09-02 16:17:00 NEA (H>22) CATCH
121 MPEC 2024-Q87 COMET P/2024 Q1 (PANSTARRS) 2024-08-31 04:43:00 Comet CATCH
122 MPEC 2024-Q59 2024 QU 2024-08-28 22:24:00 NEA (H>22) CATCH
123 MPEC 2024-Q53 2024 QS 2024-08-28 06:01:00 NEA (H>22) CATCH
124 MPEC 2024-P169 2024 PS5 2024-08-14 22:26:00 NEA (H>22) CATCH
125 MPEC 2024-P167 2024 PQ5 2024-08-14 21:16:00 NEA (H>22) CATCH
126 MPEC 2024-P166 2024 PP5 2024-08-14 21:06:00 NEA (H>22) CATCH
127 MPEC 2024-P164 2024 PR4 2024-08-14 13:56:00 NEA (H>22) CATCH
128 MPEC 2024-P111 DAILY ORBIT UPDATE (2024 August 9) 2024-08-09 12:09:00
129 MPEC 2024-O41 COMET C/2024 N4 (Sarneczky) 2024-07-24 00:04:00 Comet CATCH
130 MPEC 2024-O12 DAILY ORBIT UPDATE (2024 July 18) 2024-07-18 12:04:00
131 MPEC 2024-M29 2024 MH 2024-06-19 14:22:00 NEA (18>H>22) CATCH
132 MPEC 2024-M11 DAILY ORBIT UPDATE (2024 June 17) 2024-06-17 12:11:00
133 MPEC 2024-L118 DAILY ORBIT UPDATE (2024 June 11) 2024-06-11 12:07:00
134 MPEC 2024-L87 2024 LZ1 2024-06-08 11:13:00 NEA (H>22) CATCH
135 MPEC 2024-L72 2024 LJ1 2024-06-06 22:33:00 NEA (H>22) CATCH
136 MPEC 2024-L63 2024 LE1 2024-06-06 11:45:00 NEA (H>22) CATCH
137 MPEC 2024-L60 2024 LC1 2024-06-06 09:16:00 PHAg18 CATCH
138 MPEC 2024-L24 2024 LC 2024-06-02 16:16:00 NEA (H>22) CATCH
139 MPEC 2024-K148 2024 KL1 2024-05-31 11:44:00 NEA (H>22) CATCH
140 MPEC 2024-K128 COMET C/2024 J4 (Lemmon) 2024-05-30 01:25:00 Comet CATCH
141 MPEC 2024-K114 2024 KQ 2024-05-29 00:18:00 NEA (H>22) CATCH
142 MPEC 2024-K113 2024 KP 2024-05-28 23:56:00 NEA (H>22) CATCH
143 MPEC 2024-K99 2024 KG 2024-05-27 23:52:00 NEA (H>22) CATCH
144 MPEC 2024-K09 2024 JX17 2024-05-17 04:36:00 PHAg18 CATCH
145 MPEC 2024-J311 DAILY ORBIT UPDATE (2024 May 15) 2024-05-15 12:04:00
146 MPEC 2024-J310 2024 JK17 2024-05-15 11:42:00 NEA (H>22) CATCH
147 MPEC 2024-J309 2024 JJ17 2024-05-15 11:42:00 NEA (H>22) CATCH
148 MPEC 2024-J305 2024 JF17 2024-05-14 23:26:00 NEA (H>22) CATCH
149 MPEC 2024-J301 2024 JB17 2024-05-14 07:36:00 NEA (H>22) CATCH
150 MPEC 2024-J299 2024 JY16 2024-05-13 23:46:00 NEA (H>22) CATCH
151 MPEC 2024-J296 DAILY ORBIT UPDATE (2024 May 13) 2024-05-13 12:03:00
152 MPEC 2024-J245 2024 JX8 2024-05-10 11:55:00 NEA (H>22) CATCH
153 MPEC 2024-J167 2024 JT3 2024-05-08 15:47:00 NEA (H>22) CATCH
154 MPEC 2024-J149 2024 JN3 2024-05-08 10:55:00 NEA (H>22) CATCH
155 MPEC 2024-J146 2024 JL3 2024-05-08 10:52:00 NEA (H>22) CATCH
156 MPEC 2024-J122 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-05-07 20:00:00 Comet CATCH
157 MPEC 2024-J84 2024 JW1 2024-05-05 17:03:00 NEA (18>H>22) CATCH
158 MPEC 2024-J50 2024 JV 2024-05-03 17:44:00 NEA (H>22) CATCH
159 MPEC 2024-J30 2024 JE 2024-05-02 23:26:00 NEA (H>22) CATCH
160 MPEC 2024-H96 2024 HV1 2024-04-29 23:57:00 NEA (H>22) CATCH
161 MPEC 2024-H95 2024 HU1 2024-04-29 23:56:00 NEA (H>22) CATCH
162 MPEC 2024-H01 2024 GG6 2024-04-16 02:34:00 NEA (H>22) CATCH
163 MPEC 2024-G01 2024 FR3 2024-04-01 00:00:00 NEA (H>22) CATCH
164 MPEC 2024-F121 2024 ED6 2024-03-31 23:02:00 NEA (H>22) CATCH
165 MPEC 2024-F112 2024 FK3 2024-03-31 12:50:00 NEA (18>H>22) CATCH
166 MPEC 2024-F101 2024 FZ2 2024-03-29 23:04:00 NEA (H>22) CATCH
167 MPEC 2024-F15 2024 FD 2024-03-18 13:07:00 NEA (H>22) CATCH
168 MPEC 2024-E188 2024 EJ4 2024-03-14 22:06:00 NEA (H>22) CATCH
169 MPEC 2024-E186 2024 EG4 2024-03-14 21:43:00 NEA (H>22) CATCH
170 MPEC 2024-E159 2024 EJ3 2024-03-12 20:58:00 NEA (H>22) CATCH
171 MPEC 2024-E158 2024 EH3 2024-03-12 20:57:00 NEA (H>22) CATCH
172 MPEC 2024-E149 2024 ED3 2024-03-12 00:56:00 NEA (H>22) CATCH
173 MPEC 2024-E146 2024 EA3 2024-03-11 19:26:00 NEA (H>22) CATCH
174 MPEC 2024-E140 DAILY ORBIT UPDATE (2024 March 10) 2024-03-10 12:09:00
175 MPEC 2024-E123 DAILY ORBIT UPDATE (2024 March 8) 2024-03-08 12:10:00
176 MPEC 2024-E109 DAILY ORBIT UPDATE (2024 March 7) 2024-03-07 12:07:00

List of Observers

Observers Count
Z. Wang, B. Liu 608

List of Measurers

Measurers Count
Z. Wang 608

List of Facilities

Facilities Count
0.28-m f/2.2 reflector + CMO 608