E29 Mardella Observatory

Last update: UTC 2026-02-24 07:28:02

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 3 0 0 0 2 0 0 0 1 0
2025 11 0 0 6 4 0 0 0 1 0
2024 1 0 0 0 1 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 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 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 2024-X309 DAILY ORBIT UPDATE (2024 December 12) 2024-12-12 12:07:00
2 MPEC 2025-A153 DAILY ORBIT UPDATE (2025 January 9) 2025-01-09 12:11:00
3 MPEC 2025-A169 DAILY ORBIT UPDATE (2025 January 13) 2025-01-13 12:18:00
4 MPEC 2025-A178 COMET C/2025 A3 (Tsuchinshan) 2025-01-15 19:10:00 Comet CATCH
5 MPEC 2025-N86 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2025-07-10 20:25:00 Comet CATCH
6 MPEC 2025-O159 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2025-07-31 18:52:00 Comet CATCH
7 MPEC 2025-P113 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2025-08-07 15:44:00 Comet CATCH
8 MPEC 2025-R69 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2025-09-09 19:18:00 Comet CATCH
9 MPEC 2025-S298 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2025-09-30 17:23:00 Comet CATCH
10 MPEC 2025-W75 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS 2025-11-21 21:16:00 Comet CATCH
11 MPEC 2025-W166 DAILY ORBIT UPDATE (2025 November 27) 2025-11-27 12:03:00
12 MPEC 2025-W198 DAILY ORBIT UPDATE (2025 November 29) 2025-11-29 12:05:00
13 MPEC 2026-D24 DAILY ORBIT UPDATE (2026 February 17) 2026-02-17 12:13:00
14 MPEC 2026-D67 2026 CX4 2026-02-20 18:47:00 NEA (H>22) CATCH
15 MPEC 2026-D82 DAILY ORBIT UPDATE (2026 February 21) 2026-02-21 12:17:00

Objects Observed by This Station

Object Observations Discoveries First Obs Last Obs Magnitude MPECs
02202 1888 0 2024-11-22 2024-11-23 18.1 236
0065P 1236 0 2025-07-24 2025-07-31 20.0 309
CK21G020 972 0 2025-07-10 2025-07-31 15.8 108
0240P 792 0 2025-08-12 2025-09-21 15.8 88
0048P 678 0 2025-08-12 2025-08-30 17.0 113
CK20V020 504 0 2025-07-24 2025-07-31 18.8 126
0047P 464 0 2025-08-30 2025-09-01 17.8 116
CK24J030 462 0 2025-07-14 2025-08-30 17.1 42
CK23R010 402 0 2025-07-31 2025-09-01 15.0 67
CK24L050 224 0 2025-07-14 2025-07-24 18.4 32
CK22N020 222 0 2025-08-12 2025-08-12 15.7 74
CK14UR1N 214 0 2025-08-12 2025-08-12 16.2 107
CK23T030 192 0 2025-07-09 2025-07-24 17.5 48
0013P 174 0 2025-07-31 2025-07-31 17.4 58
K23D02B 168 0 2025-01-08 2025-11-26 21.1 14
0210P 153 0 2025-08-30 2025-08-30 N/A 51
CK24T050 116 0 2025-08-30 2025-09-21 15.2 29
0024P 75 0 2025-11-15 2025-11-15 14.4 25
K26C04X 27 0 2026-02-18 2026-02-20 19.5 3
CK25A030 24 0 2025-01-12 2025-01-12 21.3 6
K26C03Q 24 0 2026-02-15 2026-02-15 N/A 8
K26C04W 9 0 2026-02-20 2026-02-20 19.8 3

List of Observers

Observer Group Total MPECs
Unknown 7
A.Pearce 6
J.-Y.Zhao 1
J.-Y.Zhao, P.Luckas 1
Individual Observer Total MPECs
Unknown 7
A.Pearce 6
J.-Y.Zhao 2
P.Luckas 1

List of Measurers

Measurer Group Total MPECs
Unknown 14
J.-Y.Zhao 1
Individual Measurer Total MPECs
Unknown 14
J.-Y.Zhao 1

List of Facilities

Facilities Count
1.0-m f/6 Corrected Dall-Kirkham + CCD 1
1.00-m f/6 Corrected Dall- Kirkham + CCD 1
1.00-m f/6.0 reflector + CCD 6
Unknown 7