I11 Gemini South Observatory, Cerro Pachon

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
2024 4 0 0 4 0 0 0 0 0 0
2023 3 0 1 2 0 0 0 0 0 0
2022 4 0 0 2 1 0 0 0 1 0
2021 5 0 2 3 0 0 0 0 0 0
2020 1 0 0 0 0 0 0 0 1 0
2019 2 0 0 1 0 0 0 0 1 0
2018 5 0 0 0 1 0 0 0 4 0
2017 8 0 0 2 4 0 0 0 0 2
2016 17 0 0 2 4 0 0 0 8 3
2015 4 0 0 0 1 0 0 0 2 1
2014 10 0 0 0 4 0 0 0 5 1
2013 0 0 0 0 0 0 0 0 0 0
2012 0 0 0 0 0 0 0 0 0 0
2011 1 0 0 0 1 0 0 0 0 0
2010 7 0 0 1 2 0 0 0 0 4
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 2024-L140 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2024-06-14 22:23:00 Comet CATCH
2 MPEC 2024-K06 2016 PR38 2024-05-16 14:08:00 PHAg18 CATCH
3 MPEC 2024-H85 2017 JD3 2024-04-29 14:09:00 PHAg18 CATCH
4 MPEC 2024-E143 COMET P/2016 J1-B = P/2021 K5-B (PANSTARRS) 2024-03-11 08:00:00 ✓ Comet CATCH
5 MPEC 2023-O88 COMET P/2010 TO20 = P/2023 H6 (LINEAR-Grauer) 2023-07-27 02:57:00 ✓ Comet CATCH
6 MPEC 2023-E38 2015 NK13 2023-03-03 14:07:00 PHAg18 CATCH
7 MPEC 2022-W161 DAILY ORBIT UPDATE (2022 November 24) 2022-11-24 12:18:00
8 MPEC 2022-W32 2019 RC 2022-11-17 14:07:00 PHAg18 CATCH
9 MPEC 2022-P82 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2022-08-06 07:59:00 Comet CATCH
10 MPEC 2022-H04 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2022-04-17 04:45:00 Comet CATCH
11 MPEC 2021-P79 COMET P/2017 S5 = P/2021 L6 (ATLAS) 2021-08-08 04:22:00 ✓ Comet CATCH
12 MPEC 2021-P78 COMET P/2019 A7 = P/2021 K4 (PANSTARRS) 2021-08-08 00:04:00 ✓ Comet CATCH
13 MPEC 2021-F115 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2021-03-26 07:20:00 Comet CATCH
14 MPEC 2020-Q175 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2020-08-24 17:36:00 Comet CATCH
15 MPEC 2019-Q135 OBSERVATIONS AND ORBITS OF COMETS 2019-08-30 13:34:00 Comet CATCH
16 MPEC 2019-Q09 COMET 39P/Oterma 2019-08-17 00:02:00 Comet CATCH
17 MPEC 2018-L53 COMET C/2018 EN4 (NEOWISE) 2018-06-11 14:52:00 Comet CATCH
18 MPEC 2018-L30 2018 LK2 2018-06-08 18:18:00 NEA (18>H>22) CATCH
19 MPEC 2018-G01 DAILY ORBIT UPDATE (2018 APR. 1 UT) 2018-04-01 12:01:00
20 MPEC 2018-E84 2015 FW403 2018-03-13 20:47:00 TNO CATCH
21 MPEC 2018-E26 2018 EB 2018-03-07 15:47:00 PHAg18 CATCH
22 MPEC 2017-Q115 COMET P/2012 T1 = 2017 O3 (PANSTARRS) 2017-08-25 13:27:00 Comet CATCH
23 MPEC 2017-Q01 2017 OP68 2017-08-16 02:00:00 ✓ PHAg18 CATCH
24 MPEC 2017-O30 DAILY ORBIT UPDATE (2017 JULY 22 UT) 2017-07-22 11:59:00
25 MPEC 2017-O01 2017 MD9 2017-07-16 10:53:00 ✓ NEA (18>H>22) CATCH
26 MPEC 2017-L52 OBSERVATIONS AND ORBITS OF COMETS 2017-06-06 22:36:00 Comet CATCH
27 MPEC 2017-L01 DAILY ORBIT UPDATE (2017 JUNE 1 UT) 2017-06-01 12:02:00
28 MPEC 2017-G86 DAILY ORBIT UPDATE (2017 APR. 12 UT) 2017-04-12 12:02:00
29 MPEC 2017-E98 DAILY ORBIT UPDATE (2017 MAR. 15 UT) 2017-03-15 12:03:00
30 MPEC 2016-Y80 2016 YF8 2016-12-29 14:35:00 NEA (H>22) CATCH
31 MPEC 2016-T22 2016 SA36 2016-10-03 13:24:00 Unusual CATCH
32 MPEC 2016-R33 DAILY ORBIT UPDATE (2016 SEPT. 3 UT) 2016-09-03 12:03:00
33 MPEC 2016-Q79 2014 FM72 2016-08-31 03:46:00 TNO CATCH
34 MPEC 2016-Q78 2013 UK15 2016-08-31 03:44:00 ✓ TNO CATCH
35 MPEC 2016-Q73 2014 FL72 2016-08-31 02:58:00 TNO CATCH
36 MPEC 2016-Q71 2014 FJ72 2016-08-31 02:52:00 TNO CATCH
37 MPEC 2016-Q67 2013 UJ15 2016-08-31 02:43:00 ✓ TNO CATCH
38 MPEC 2016-Q48 2014 FL70 2016-08-29 15:52:00 TNO CATCH
39 MPEC 2016-Q43 2014 FE72 2016-08-29 13:43:00 TNO CATCH
40 MPEC 2016-Q40 2013 UH15 2016-08-29 13:37:00 ✓ TNO CATCH
41 MPEC 2016-P31 2016 OY2 2016-08-05 02:37:00 NEA (18>H>22) CATCH
42 MPEC 2016-L71 2015 GP50 2016-06-07 20:03:00 TNO CATCH
43 MPEC 2016-K35 DAILY ORBIT UPDATE (2016 MAY 29 UT) 2016-05-29 12:02:00
44 MPEC 2016-H25 DAILY ORBIT UPDATE (2016 APR. 19 UT) 2016-04-19 12:04:00
45 MPEC 2016-D44 DAILY ORBIT UPDATE (2016 FEB. 25 UT) 2016-02-25 13:03:00
46 MPEC 2016-B63 COMET C/2016 B1 (NEOWISE) 2016-01-22 19:20:00 Comet CATCH
47 MPEC 2015-O47 DAILY ORBIT UPDATE (2015 JULY 24 UT) 2015-07-24 12:03:00
48 MPEC 2015-L10 2015 KL157 2015-06-04 18:32:00 ✓ PHAg18 CATCH
49 MPEC 2015-H13 2015 FT344 2015-04-17 17:35:00 NEA (18>H>22) CATCH
50 MPEC 2015-C52 2014 FC69 2015-02-11 16:26:00 TNO CATCH
51 MPEC 2014-V53 2014 UH210 2014-11-14 04:00:00 NEA (18>H>22) CATCH
52 MPEC 2014-U27 DAILY ORBIT UPDATE (2014 OCT. 21 UT) 2014-10-21 12:04:00
53 MPEC 2014-U19 2014 TJ64 2014-10-18 16:53:00 NEA (18>H>22) CATCH
54 MPEC 2014-T49 2014 SR339 2014-10-07 14:04:00 PHAl18 CATCH
55 MPEC 2014-P58 2014 OT392 2014-08-13 22:08:00 NEA (H>22) CATCH
56 MPEC 2014-K11 DAILY ORBIT UPDATE (2014 MAY 18 UT) 2014-05-18 12:01:00
57 MPEC 2014-H67 2014 HQ124 2014-04-28 18:01:00 PHAg18 CATCH
58 MPEC 2014-E83 2014 EN45 2014-03-14 02:14:00 ✓ NEA (18>H>22) CATCH
59 MPEC 2014-C21 DAILY ORBIT UPDATE (2014 FEB. 7 UT) 2014-02-07 14:03:00
60 MPEC 2014-C12 DAILY ORBIT UPDATE (2014 FEB. 5 UT) 2014-02-05 14:02:00
61 MPEC 2011-A29 DAILY ORBIT UPDATE (2011 JAN. 8 UT) 2011-01-08 07:10:00
62 MPEC 2010-Y11 DAILY ORBIT UPDATE (2010 DEC. 18 UT) 2010-12-18 07:08:00
63 MPEC 2010-Y06 2010 XP69 2010-12-16 16:14:00 ✓ PHAg18 CATCH
64 MPEC 2010-S42 DAILY ORBIT UPDATE (2010 SEPT. 25 UT) 2010-09-25 06:09:00
65 MPEC 2010-P22 2009 MG10 2010-08-04 23:23:00 ✓ TNO CATCH
66 MPEC 2010-N47 2009 MF10 2010-07-10 18:52:00 ✓ TNO CATCH
67 MPEC 2010-N33 2009 ME10 2010-07-08 14:53:00 ✓ Unusual CATCH
68 MPEC 2010-G114 OBSERVATIONS OF COMETS 2010-04-14 20:57:00 Comet CATCH

List of Observers

Observers Count
L. Barrera, P. Nowajewski 9
A. Udalski, S. S. Sheppard, M. Szymanski, C. Trujillo 3
S. S. Sheppard, A. Udalski, C. Trujillo, K. Ulaczyk 3
C. Trujillo, A. Udalski, S. S. Sheppard, I. Soszynski 3
J. Masiero, S. Margheim 12
J. Masiero, G. Gimeno 4
J. Masiero, D. Krogsrud 4
A. Cardwell, D. Krogsrud, M. Schirmer, J. Masiero 1
J. Masiero, P. Prado, L. Magill 3
J. Masiero, A. Cardwell, E. Wenderoth 4
J. Masiero, P. Hibon 4
S. S. Sheppard, C. Trujillo 4
J. Masiero, S. Walsh, J. Fuentes 4
J. Masiero, M. Schirmer, P. Prado, E. Wenderoth, J. Madrid, J. Fuentes 8
J. Masiero, A. Shugart, L. Magill, A. Lopez, M. Gomez 4
C. Trujillo, S. S. Sheppard 21
J. Masiero, J. Chavez, P. Prado 4
J. Masiero, L. Magill, E. Marin 4
J. Masiero, D. Sanmartim, E. Marin 4
H. H. Heish, J. Chavez 14
J. Masiero, J. Chavez, J. Fuentes 4
J. Masiero, A. Shugart, P. Candia, J. Fuentes 8
H. H. Hsieh, J. Chavez, L. Magill, K. Silva 10
J. Masiero, M. Andersen, M. Gomez 4
S. S. Sheppard, C. Trujillo, D. J. Tholen 2
J. Masiero, V. Firpo, P. Prado 3
J. Masiero, J. Chavez, M. Gomez 4
C. Schambeau, Y. Fernandez, M. De Pra, L. Woodney, S. Ieva 14
M. Gomez, A. Shugart 6
H. H. Hsieh, Y. Kang, A. Garcia 5
H. H. Hsieh, J. Chavez 3
H. H. Hsieh, S. Margheim, L. Magill 10
H. H. Hsieh, K. Silva, R. Carrasco, R. Ruiz 19
H. H. Hsieh, V. Firpo, A. Garcia, L. Magill, K. Silva 27
K. W. Wierzchos, J. E. Heo, L. Magill 3
K. Silva, P. Prado, R. Angeloni, R. Ruiz 4
C. Schambeau 11
H. H. Hsieh, L. Magill 2
J. Chavez, L. Magill, D. May, K. W. Wierzchos 5
V. Kalari, R. Ruiz, K. W. Wierzchos 2
H. H. Hsieh, D. May, A. Cikota, J. Chavez, P. Prado 13

List of Measurers

Measurers Count
C. Snodgrass 9
J. Masiero 82
M. Schirmer, J. Masiero 1
M. Micheli, H. H. Hsieh 23
M. Micheli 111
E. J. Christensen, D. Fay, J. B. Fazekas, D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Groeller, J. K. Hogan, R. A. Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C. Shelly, K. W. Wierzchos 7
D. Rankin, D. Parrott, K. W. Wierzchos 7

List of Facilities

Facilities Count
4.1-m reflector + CCD, 9
8.0-m reflector 71
8.10-m Gemini North reflector + CCD 2
8.1-m reflector + CCD 19
8.1-m Gemini South + CCD 67
8.1-m reflector + 3x2Kx4K mosaic CCD 3
8.1-m f/16.0 reflector + 3x2Kx4K mosaic CCD 4
8.10-m f/16.0 reflector + CCD 7