W97 Atacama Desert Observatory, San Pedro de Atacama
- Country: Chile
- State: Antofagasta Region
- County: Provincia de El Loa
- City: San Pedro de Atacama
- Observatory Type: optical
- Old Names: None
- Website:
- Where is this observatory?
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 |