269 Magellan-Baade Telescope
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 41 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 20 |
| 2024 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2023 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2022 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| 2021 | 1 | 0 | 0 | 0 | 1 | 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 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 |
| 2013 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2012 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 1 |
| 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 2012-T05 2011 HM102 | 2012-10-02 16:41:00 | Unusual | CATCH | ||
| 2 | MPEC 2012-W25 2011 HZ102 | 2012-11-20 20:24:00 | TNO | CATCH | ||
| 3 | MPEC 2012-W26 2011 JW31 | 2012-11-20 20:30:00 | ✓ | TNO | CATCH | |
| 4 | MPEC 2012-X59 2011 JX31 | 2012-12-11 23:01:00 | TNO | CATCH | ||
| 5 | MPEC 2012-X60 2011 JY31 | 2012-12-11 23:08:00 | TNO | CATCH | ||
| 6 | MPEC 2014-E66 2011 HK103 | 2014-03-11 21:19:00 | TNO | CATCH | ||
| 7 | MPEC 2021-O35 DAILY ORBIT UPDATE (2021 July 21) | 2021-07-21 12:09:00 | ||||
| 8 | MPEC 2022-O13 DAILY ORBIT UPDATE (2022 July 20) | 2022-07-20 12:01:00 | ||||
| 9 | MPEC 2025-F13 2023 PW4 | 2025-03-19 14:16:00 | ✓ | TNO | CATCH | |
| 10 | MPEC 2025-F14 2023 PX4 | 2025-03-19 14:19:00 | ✓ | TNO | CATCH | |
| 11 | MPEC 2025-F108 2020 BT175 | 2025-03-24 15:05:00 | ✓ | TNO | CATCH | |
| 12 | MPEC 2025-F109 2020 BU175 | 2025-03-24 15:06:00 | ✓ | TNO | CATCH | |
| 13 | MPEC 2025-F110 2023 PY4 | 2025-03-24 15:12:00 | ✓ | Unusual | CATCH | |
| 14 | MPEC 2025-G14 2023 PZ4 | 2025-04-01 14:55:00 | ✓ | TNO | CATCH | |
| 15 | MPEC 2025-G15 2023 PA5 | 2025-04-01 14:56:00 | ✓ | TNO | CATCH | |
| 16 | MPEC 2025-G16 2023 PB5 | 2025-04-01 15:00:00 | ✓ | TNO | CATCH | |
| 17 | MPEC 2025-G17 2023 PC5 | 2025-04-01 15:01:00 | ✓ | TNO | CATCH | |
| 18 | MPEC 2025-G18 2023 PD5 | 2025-04-01 15:38:00 | ✓ | Unusual | CATCH | |
| 19 | MPEC 2025-G19 2023 PE5 | 2025-04-01 15:41:00 | ✓ | Unusual | CATCH | |
| 20 | MPEC 2025-G20 2023 PF5 | 2025-04-01 15:47:00 | ✓ | TNO | CATCH | |
| 21 | MPEC 2025-G21 2023 PG5 | 2025-04-01 15:48:00 | ✓ | TNO | CATCH | |
| 22 | MPEC 2025-L57 2025 LP | 2025-06-10 00:36:00 | ✓ | NEA (18>H>22) | CATCH | |
| 23 | MPEC 2025-M20 2024 FX26 | 2025-06-18 13:50:00 | ✓ | TNO | CATCH | |
| 24 | MPEC 2025-M21 2024 FY26 | 2025-06-18 15:15:00 | ✓ | TNO | CATCH | |
| 25 | MPEC 2025-M92 2024 FZ26 | 2025-06-24 19:25:00 | ✓ | TNO | CATCH | |
| 26 | MPEC 2025-P26 2021 LK54 | 2025-08-01 16:15:00 | ✓ | TNO | CATCH | |
| 27 | MPEC 2025-P27 2020 VQ40 | 2025-08-01 16:16:00 | ✓ | TNO | CATCH | |
| 28 | MPEC 2025-P28 2021 LL54 | 2025-08-01 16:23:00 | ✓ | TNO | CATCH | |
| 29 | MPEC 2025-T164 2025 SC79 | 2025-10-15 16:05:00 | NEA (18>H>22) | CATCH |
Objects Observed by This Station (29 total)
| Object | Observations | Discoveries | First Obs | Last Obs | Magnitude | MPECs |
|---|---|---|---|---|---|---|
| 65803 | 71238 | 0 | 2022-07-02 | 2022-07-02 | 17.4 | 383 |
| K20A02V | 155 | 0 | 2021-07-18 | 2021-07-19 | 17.7 | 31 |
| K11HA2M | 97 | 0 | 2011-06-30 | 2011-08-29 | N/A | 1 |
| K25S79C | 20 | 0 | 2025-10-04 | 2025-10-04 | N/A | 1 |
| K21L54K | 10 | 0 | 2022-05-28 | 2022-05-28 | 23.7 | 1 |
| K21L54L | 10 | 0 | 2022-05-29 | 2022-05-29 | 23.7 | 1 |
| K11J31X | 9 | 0 | 2011-06-30 | 2011-08-28 | N/A | 1 |
| K20BH5U | 9 | 0 | 2021-01-18 | 2025-03-03 | 25.6 | 1 |
| K24F26X | 9 | 0 | 2024-04-11 | 2025-05-01 | N/A | 1 |
| K20BH5T | 7 | 0 | 2020-12-16 | 2025-03-03 | 25.6 | 1 |
| K23P04W | 7 | 0 | 2023-09-13 | 2024-10-02 | N/A | 1 |
| K23P04X | 7 | 0 | 2023-09-13 | 2024-10-02 | N/A | 1 |
| K11HA2Z | 6 | 0 | 2011-06-30 | 2011-07-01 | N/A | 1 |
| K11HA3K | 6 | 0 | 2011-07-01 | 2011-07-02 | N/A | 1 |
| K11J31W | 6 | 0 | 2011-06-30 | 2011-07-01 | N/A | 1 |
| K11J31Y | 6 | 0 | 2011-06-30 | 2011-07-01 | N/A | 1 |
| K24F26Y | 6 | 0 | 2024-04-11 | 2025-05-01 | N/A | 1 |
| K25L00P | 6 | 0 | 2025-06-04 | 2025-06-04 | 20.4 | 3 |
| K20V40Q | 5 | 0 | 2021-11-26 | 2021-11-26 | 23.7 | 1 |
| K24F26Z | 5 | 0 | 2024-04-11 | 2025-03-04 | N/A | 1 |
| K23P04Y | 4 | 0 | 2023-09-14 | 2023-10-06 | N/A | 1 |
| K23P04Z | 4 | 0 | 2023-09-13 | 2023-10-06 | N/A | 1 |
| K23P05A | 4 | 0 | 2023-09-13 | 2023-10-06 | N/A | 1 |
| K23P05B | 4 | 0 | 2023-09-13 | 2023-10-06 | N/A | 1 |
| K23P05C | 4 | 0 | 2023-09-13 | 2023-10-06 | N/A | 1 |
| K23P05D | 4 | 0 | 2023-09-13 | 2023-10-06 | N/A | 1 |
| K23P05E | 4 | 0 | 2023-09-13 | 2023-10-06 | N/A | 1 |
| K23P05F | 4 | 0 | 2023-09-13 | 2024-10-02 | 24.8 | 1 |
| K23P05G | 4 | 0 | 2023-09-14 | 2024-10-03 | 25.2 | 1 |
List of Observers
| Observer Group | Total MPECs |
|---|---|
| S.S.Sheppard | 11 |
| D.J.Osip, S.S.Sheppard | 4 |
| R.E.Pike | 3 |
| C.Trujillo, K.A.Farrell, M.K.Frissell, S.S.Sheppard | 3 |
| A.H.Parker, D.J.Osip, M.J.Holman, S.S.Sheppard | 2 |
| C.Trujillo, K.Farrell, S.S.Sheppard | 2 |
| Unknown | 2 |
| B.Madore, K.Owens, S.S.Sheppard | 1 |
| D.Osip, M.D.Mora, S.S.Sheppard | 1 |
| Individual Observer | Total MPECs |
|---|---|
| S.S.Sheppard | 24 |
| D.J.Osip | 6 |
| C.Trujillo | 5 |
| R.E.Pike | 3 |
| K.A.Farrell | 3 |
| M.K.Frissell | 3 |
| A.H.Parker | 2 |
| M.J.Holman | 2 |
| K.Farrell | 2 |
| Unknown | 2 |
| B.Madore | 1 |
| K.Owens | 1 |
| D.Osip | 1 |
| M.D.Mora | 1 |
List of Measurers
| Measurer Group | Total MPECs |
|---|---|
| Unknown | 13 |
| A.H.Parker, D.M.Borncamp, M.W.Buie | 6 |
| C.Trujillo, S.S.Sheppard | 5 |
| C.Collyer, R.E.Pike | 3 |
| S.S.Sheppard | 2 |
| Individual Measurer | Total MPECs |
|---|---|
| Unknown | 13 |
| S.S.Sheppard | 7 |
| A.H.Parker | 6 |
| D.M.Borncamp | 6 |
| M.W.Buie | 6 |
| C.Trujillo | 5 |
| C.Collyer | 3 |
| R.E.Pike | 3 |
List of Facilities
| Facilities | Count |
|---|---|
| 6.5-m Magellan-Baade telescope + CCD | 18 |
| 6.5-m f/4.3 reflector + 2048pix x 4096pix x 8ccd CCD | 3 |
| Unknown | 8 |