W97 Atacama Desert Observatory, San Pedro de Atacama

Last update: UTC 2026-05-11 06:30:41

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 33 0 0 1 2 0 0 0 16 14
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

Objects Observed by This Station

Object Observations Discoveries First Obs Last Obs Magnitude MPECs
0029P 2965 0 2017-06-22 2017-06-24 16.5 593
0065P 2472 0 2017-02-03 2017-06-21 20.0 309
0002P 1728 0 2017-04-14 2017-06-22 N/A 192
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 312 0 2017-03-03 2017-03-03 19.2 156
CK15E61R 250 0 2017-01-20 2017-04-16 15.5 25
CK13X010 220 0 2017-04-14 2017-04-16 13.5 44
0217P 188 0 2017-05-05 2017-05-05 20.9 94
CK16A010 150 0 2017-01-28 2017-02-02 18.1 30
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 93 0 2017-06-19 2017-06-19 17.2 31
0045P 88 0 2017-02-10 2017-02-10 10.7 44
CK15O010 74 0 2017-06-21 2017-06-21 20.1 37
CK17E030 60 0 2017-03-10 2017-03-10 19.2 20
K26H01Q 48 0 2026-04-18 2026-04-20 19.4 8
K26F05L 45 0 2026-03-22 2026-03-22 20.1 5
K26F03Q 42 0 2026-03-21 2026-03-21 22.0 7
K26F05Z 42 0 2026-03-24 2026-03-24 21.8 7
K26G00M 33 0 2026-04-07 2026-04-07 23.0 11
K26F05R 30 0 2026-03-24 2026-03-24 21.7 10
K26G00D 24 0 2026-04-06 2026-04-06 17.6 8
K26H03X 24 0 2026-04-24 2026-04-24 18.9 4
CK17A030 20 0 2017-01-29 2017-02-01 N/A 5
CK17E010 18 0 2017-04-07 2017-04-07 15.8 6
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
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
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

List of Observers

Observer Group Total MPECs
A.Maury, F.Signoret, G.Attard 17
A.Maury, B.Sandness, T.Noel 7
Unknown 2
A.Maur y B.Sandness, A.Maury, B.Sandness, J.-F.Soulier, T.Noel 1
Individual Observer Total MPECs
A.Maury 25
F.Signoret 17
G.Attard 17
B.Sandness 8
T.Noel 8
Unknown 2
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 17
T.Noel 7
Unknown 2
J.-F.Soulier, T.Noel 1
Individual Measurer Total MPECs
A.Maury 17
D.Parrott 17
F.Signoret 17
G.Attard 17
T.Noel 8
Unknown 2
J.-F.Soulier 1

List of Facilities

Facilities Count
0.38-m f/3.9 reflector + CCD 17
0.38-m f/4.6 Newtonian reflector + CCD 8
Unknown 2