W97 Atacama Desert Observatory, San Pedro de Atacama

Last update: UTC 2026-11-13 13:49:56

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 115 0 0 2 8 0 0 0 57 48
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 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 8 0 0 8 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 2017-C79 COMET 73P-BT/Schwassmann-Wachmann 2017-02-11 23:58:00 Comet CATCH
2 MPEC 2017-E18 COMET C/2017 A3 (ELENIN) 2017-03-02 21:09:00 Comet CATCH
3 MPEC 2017-E59 OBSERVATIONS AND ORBITS OF COMETS 2017-03-08 23:15:00 Comet CATCH
4 MPEC 2017-E85 COMET C/2017 E3 (PANSTARRS) 2017-03-13 18:45:00 Comet CATCH
5 MPEC 2017-H02 COMET C/2017 E1 (Borisov) 2017-04-16 02:44:00 Comet CATCH
6 MPEC 2017-J52 OBSERVATIONS AND ORBITS OF COMETS 2017-05-07 04:08:00 Comet CATCH
7 MPEC 2017-N58 OBSERVATIONS AND ORBITS OF COMETS 2017-07-06 18:55:00 Comet CATCH
8 MPEC 2017-T14 OBSERVATIONS AND ORBITS OF COMETS 2017-10-03 16:54:00 Comet CATCH
9 MPEC 2026-F40 DAILY ORBIT UPDATE (2026 March 18) 2026-03-18 12:23:00
10 MPEC 2026-F49 2026 FS 2026-03-18 20:56:00 ✓ NEA (H>22) CATCH
11 MPEC 2026-F147 2026 FQ3 2026-03-22 09:51:00 ✓ NEA (H>22) CATCH
12 MPEC 2026-F161 2026 FB4 2026-03-24 00:46:00 ✓ NEA (H>22) CATCH
13 MPEC 2026-F193 2026 FK5 2026-03-25 17:10:00 ✓ NEA (H>22) CATCH
14 MPEC 2026-F194 2026 FL5 2026-03-25 17:13:00 ✓ NEA (H>22) CATCH
15 MPEC 2026-F201 2026 FR5 2026-03-26 03:10:00 NEA (H>22) CATCH
16 MPEC 2026-F209 2026 FZ5 2026-03-26 07:26:00 ✓ NEA (H>22) CATCH
17 MPEC 2026-G25 2026 GD 2026-04-07 07:12:00 ✓ NEA (H>22) CATCH
18 MPEC 2026-G54 2026 GM 2026-04-09 04:30:00 NEA (H>22) CATCH
19 MPEC 2026-G124 2026 GZ1 2026-04-13 10:16:00 ✓ NEA (H>22) CATCH
20 MPEC 2026-G131 2026 GC2 2026-04-14 06:34:00 ✓ NEA (H>22) CATCH
21 MPEC 2026-H63 2026 HQ1 2026-04-20 01:06:00 ✓ NEA (H>22) CATCH
22 MPEC 2026-H70 DAILY ORBIT UPDATE (2026 April 20) 2026-04-20 12:03:00
23 MPEC 2026-H91 2026 HM2 2026-04-21 19:46:00 ✓ NEA (H>22) CATCH
24 MPEC 2026-H93 2026 HO2 2026-04-22 02:47:00 ✓ NEA (H>22) CATCH
25 MPEC 2026-H97 2017 HX 2026-04-22 08:16:00 PHAg18 CATCH
26 MPEC 2026-H98 2026 HR2 2026-04-22 11:36:00 ✓ NEA (H>22) CATCH
27 MPEC 2026-H131 2026 HX3 2026-04-24 21:06:00 ✓ NEA (H>22) CATCH
28 MPEC 2026-J110 2026 JK3 2026-05-13 22:16:00 ✓ NEA (H>22) CATCH
29 MPEC 2026-J140 2026 JL4 2026-05-15 20:36:00 NEA (18>H>22) CATCH
30 MPEC 2026-K02 DAILY ORBIT UPDATE (2026 May 16) 2026-05-16 12:13:00
31 MPEC 2026-K10 2026 JU4 2026-05-17 03:10:00 ✓ NEA (H>22) CATCH
32 MPEC 2026-K95 2026 KT2 2026-05-25 20:36:00 NEA (H>22) CATCH
33 MPEC 2026-L22 2026 LK 2026-06-06 23:36:00 ✓ NEA (H>22) CATCH
34 MPEC 2026-L35 DAILY ORBIT UPDATE (2026 June 8) 2026-06-08 12:20:00
35 MPEC 2026-P35 2023 OY5 2026-08-06 11:33:00 ✓ NEA (H>22) CATCH
36 MPEC 2026-P54 2026 OQ4 2026-08-07 18:37:00 NEA (H>22) CATCH
37 MPEC 2026-P82 2014 QS168 2026-08-10 21:47:00 NEA (H>22) CATCH
38 MPEC 2026-P103 2026 PB6 2026-08-12 16:38:00 ✓ PHAg18 CATCH
39 MPEC 2026-P113 2026 PH6 2026-08-13 13:58:00 ✓ NEA (H>22) CATCH
40 MPEC 2026-Q02 2026 PB9 2026-08-16 04:38:00 ✓ NEA (H>22) CATCH
41 MPEC 2026-Q17 2026 QC 2026-08-17 22:06:00 NEA (H>22) CATCH
42 MPEC 2026-Q19 2026 PR9 2026-08-17 22:32:00 ✓ NEA (H>22) CATCH
43 MPEC 2026-Q24 2026 PY9 2026-08-17 23:56:00 ✓ NEA (H>22) CATCH
44 MPEC 2026-Q52 2026 QS 2026-08-20 19:10:00 ✓ NEA (H>22) CATCH
45 MPEC 2026-Q78 2026 QY1 2026-08-24 00:39:00 ✓ NEA (H>22) CATCH
46 MPEC 2026-Q83 2026 QC2 2026-08-24 11:21:00 ✓ NEA (H>22) CATCH
47 MPEC 2026-Q89 2026 QQ2 2026-08-24 21:37:00 ✓ NEA (H>22) CATCH
48 MPEC 2026-R19 2026 RH 2026-09-04 02:40:00 ✓ NEA (H>22) CATCH
49 MPEC 2026-R39 2026 RZ 2026-09-05 15:38:00 ✓ NEA (H>22) CATCH
50 MPEC 2026-R120 2026 RY3 2026-09-09 22:07:00 ✓ NEA (H>22) CATCH
51 MPEC 2026-R151 2026 RO10 2026-09-12 00:44:00 ✓ NEA (H>22) CATCH
52 MPEC 2026-R168 DAILY ORBIT UPDATE (2026 September 13) 2026-09-13 12:13:00
53 MPEC 2026-R174 2026 RO15 2026-09-13 20:26:00 NEA (H>22) CATCH
54 MPEC 2026-S02 2026 RF39 2026-09-16 00:39:00 ✓ NEA (H>22) CATCH
55 MPEC 2026-S09 2026 RR39 2026-09-16 11:37:00 ✓ NEA (H>22) CATCH
56 MPEC 2026-S26 2026 RF50 2026-09-17 08:07:00 ✓ NEA (H>22) CATCH
57 MPEC 2026-S29 2026 RD51 2026-09-17 21:57:00 ✓ NEA (18>H>22) CATCH
58 MPEC 2026-T04 2026 TA 2026-10-01 20:19:00 ✓ NEA (H>22) CATCH
59 MPEC 2026-T132 2015 TM238 2026-10-07 18:10:00 ✓ NEA (H>22) CATCH
60 MPEC 2026-T168 DAILY ORBIT UPDATE (2026 October 9) 2026-10-09 12:23:00
61 MPEC 2026-T181 2026 TT7 2026-10-09 15:59:00 ✓ NEA (18>H>22) CATCH
62 MPEC 2026-U39 2026 UJ 2026-10-18 16:20:00 ✓ NEA (H>22) CATCH
63 MPEC 2026-V26 2026 VP 2026-11-04 05:10:00 NEA (H>22) CATCH
64 MPEC 2026-V105 2026 VL3 2026-11-05 18:16:00 ✓ NEA (18>H>22) CATCH
65 MPEC 2026-V122 2026 VY3 2026-11-06 04:07:00 ✓ NEA (H>22) CATCH
66 MPEC 2026-V162 2026 VK5 2026-11-07 10:41:00 ✓ NEA (H>22) CATCH
67 MPEC 2026-V163 DAILY ORBIT UPDATE (2026 November 7) 2026-11-07 12:27:00
68 MPEC 2026-V175 2026 VV5 2026-11-08 03:41:00 ✓ NEA (H>22) CATCH
69 MPEC 2026-V193 2026 VC7 2026-11-09 05:44:00 ✓ NEA (H>22) CATCH
70 MPEC 2026-V194 2026 VF7 2026-11-09 06:37:00 ✓ NEA (H>22) CATCH
71 MPEC 2026-V215 2026 VE8 2026-11-10 07:07:00 ✓ NEA (H>22) CATCH
72 MPEC 2026-V216 DAILY ORBIT UPDATE (2026 November 10) 2026-11-10 14:35:00
73 MPEC 2026-V232 2026 VY8 2026-11-11 02:38:00 NEA (H>22) CATCH
74 MPEC 2026-V234 2026 VC9 2026-11-11 03:10:00 ✓ NEA (H>22) CATCH
75 MPEC 2026-V260 2026 VO11 2026-11-12 01:11:00 ✓ NEA (H>22) CATCH

Objects Observed by This Station

Object Observations Discoveries First Obs Last Obs Magnitude MPECs
0029P 3020 0 2017-06-22 2017-06-24 17.5 604
0065P 2576 0 2017-02-03 2017-06-21 19.7 322
0002P 1917 0 2017-04-14 2017-06-22 17.5 213
0071P 1469 0 2017-01-30 2017-06-21 22.4 113
0073P 1197 0 2017-02-03 2017-04-14 24.1 63
0041P 368 0 2017-01-20 2017-06-21 20.1 46
0043P 320 0 2017-03-03 2017-03-03 17.5 160
CK15E61R 250 0 2017-01-20 2017-04-16 15.5 25
CK13X010 220 0 2017-04-14 2017-04-16 13.5 44
K26R51D 207 0 2026-09-14 2026-09-14 19.1 23
0217P 190 0 2017-05-05 2017-05-05 16.3 95
CK16A010 150 0 2017-01-28 2017-02-02 18.1 30
K26J04L 135 0 2026-05-11 2026-05-16 21.0 5
K26R15O 120 0 2026-09-12 2026-09-13 22.3 10
CK15V62L 114 0 2017-06-20 2017-08-04 16.9 19
0073P bt 98 0 2017-02-10 2017-03-03 17.6 7
0213P 96 0 2017-06-20 2017-06-20 19.2 48
CK15V020 96 0 2017-06-19 2017-06-19 20.9 32
K26T07T 96 0 2026-10-07 2026-10-07 21.2 16
K26H01Q 90 0 2026-04-18 2026-04-20 N/A 15
0045P 88 0 2017-02-10 2017-02-10 10.7 44
CK15O010 74 0 2017-06-21 2017-06-21 20.1 37
K15TN8M 72 0 2026-10-07 2026-10-07 20.9 24
K26L00K 72 0 2026-06-06 2026-06-06 22.5 12
CK17E030 63 0 2017-03-10 2017-03-10 21.3 21
K26Q00S 63 0 2026-08-19 2026-08-20 N/A 7
K23O05Y 54 0 2026-08-04 2026-08-04 19.9 9
K26K02T 54 0 2026-05-24 2026-05-24 14.1 6
K26P06B 54 0 2026-08-09 2026-08-09 18.8 9
K26R39F 54 0 2026-09-12 2026-09-12 22.2 9
K14QG8S 48 0 2026-08-09 2026-08-09 22.7 16
K26F03Q 48 0 2026-03-21 2026-03-21 21.5 8
K26F05L 45 0 2026-03-22 2026-03-22 20.1 5
K26R50F 45 0 2026-09-15 2026-09-16 22.2 5
K26V03L 45 0 2026-11-04 2026-11-05 21.0 5
K26F05Z 42 0 2026-03-24 2026-03-24 21.8 7
K26H03X 36 0 2026-04-24 2026-04-24 19.5 6
K26G00M 33 0 2026-04-07 2026-04-07 23.0 11
K26F05R 30 0 2026-03-24 2026-03-24 21.7 10
K26R00H 30 0 2026-09-02 2026-09-02 20.5 5
K26T00A 30 0 2026-10-01 2026-10-01 18.5 5
K26T03A 30 0 2026-10-07 2026-10-07 22.2 5
K26V03Y 30 0 2026-11-04 2026-11-05 20.6 5
K26P09Y 27 0 2026-08-15 2026-08-15 19.2 9
K26R00Z 27 0 2026-09-04 2026-09-04 22.3 3
K26G00D 24 0 2026-04-06 2026-04-06 17.6 8
K26L00M 24 0 2026-06-08 2026-06-08 N/A 8
K26Q02Q 24 0 2026-08-22 2026-08-23 22.0 4
K26V03E 24 0 2026-11-06 2026-11-06 20.9 8
CK17A030 20 0 2017-01-29 2017-02-01 N/A 5
CK17E010 18 0 2017-04-07 2017-04-07 15.8 6
K26J04U 18 0 2026-05-15 2026-05-15 21.4 6
K26P09R 18 0 2026-08-07 2026-08-08 21.5 1
K26Q01Y 18 0 2026-08-22 2026-08-22 19.3 2
K26Q02C 18 0 2026-08-20 2026-08-21 18.5 3
K26R39R 18 0 2026-09-14 2026-09-15 21.9 3
K26V08E 18 0 2026-11-09 2026-11-10 20.1 3
K17H00X 15 0 2026-04-21 2026-04-21 21.1 5
K26F05K 15 0 2026-03-22 2026-03-22 22.1 5
K26G01Z 15 0 2026-04-11 2026-04-11 18.7 5
K26R10O 15 0 2026-09-09 2026-09-10 19.4 1
K26P06H 12 0 2026-08-09 2026-08-09 19.5 2
K26P09B 12 0 2026-08-15 2026-08-15 18.5 4
K26Q00C 12 0 2026-08-16 2026-08-16 22.3 4
K26V05K 12 0 2026-11-05 2026-11-07 20.8 2
K26V05V 12 0 2026-11-06 2026-11-07 N/A 2
K26V07F 12 0 2026-11-08 2026-11-08 17.7 4
K26V09C 12 0 2026-11-09 2026-11-10 20.4 2
K26F04B 9 0 2026-03-23 2026-03-23 18.5 0
K26H02M 6 0 2026-04-20 2026-04-20 N/A 2
K26H02O 6 0 2026-04-20 2026-04-20 20.5 2
K26H02R 6 0 2026-04-21 2026-04-21 16.3 2
K26J03K 6 0 2026-05-11 2026-05-11 19.7 1
K26O04Q 6 0 2026-08-07 2026-08-07 20.6 2
K26U00J 6 0 2026-10-17 2026-10-17 21.5 2
K26V00P 6 0 2026-11-01 2026-11-01 20.8 2
K26V07C 6 0 2026-11-08 2026-11-08 19.6 2
K26V08Y 6 0 2026-11-09 2026-11-09 21.5 2
K26E02O 3 0 2026-03-11 2026-03-11 18.8 0
K26F00S 3 0 2026-03-17 2026-03-17 16.2 0
K26G02C 3 0 2026-04-10 2026-04-10 22.0 1
K26R03Y 3 0 2026-09-08 2026-09-08 20.2 1
K26V11O 3 0 2026-11-09 2026-11-10 19.4 1

List of Observers

Observer Group Total MPECs
A.Maury, F.Signoret, G.Attard 59
Unknown 8
A.Maury, B.Sandness, T.Noel 7
A.Maur y B.Sandness, A.Maury, B.Sandness, J.-F.Soulier, T.Noel 1
Individual Observer Total MPECs
A.Maury 67
F.Signoret 59
G.Attard 59
B.Sandness 8
T.Noel 8
Unknown 8
A.Maur y B.Sandness 1
J.-F.Soulier 1

List of Measurers

Measurer Group Total MPECs
A.Maury, D.Parrott, F.Signoret, G.Attard 59
Unknown 8
T.Noel 7
J.-F.Soulier, T.Noel 1
Individual Measurer Total MPECs
A.Maury 59
D.Parrott 59
F.Signoret 59
G.Attard 59
T.Noel 8
Unknown 8
J.-F.Soulier 1

List of Facilities

Facilities Count
0.38-m f/3.9 reflector + CCD 59
0.38-m f/4.6 Newtonian reflector + CCD 8
Unknown 8