Q14 Goto Astronomical Observatory in Yatsugatake
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 | 10 | 0 | 0 | 7 | 2 | 0 | 0 | 0 | 1 | 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 | 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 2025-P110 DAILY ORBIT UPDATE (2025 August 7) | 2025-08-07 12:11:00 | ||||
| 2 | MPEC 2025-P138 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS | 2025-08-12 16:13:00 | Comet | CATCH | ||
| 3 | MPEC 2025-R63 Comet 3I/ATLAS | 2025-09-08 19:24:00 | Comet | CATCH | ||
| 4 | MPEC 2025-R64 Comet C/2023 RS61 (PANSTARRS) | 2025-09-08 19:44:00 | Comet | CATCH | ||
| 5 | MPEC 2025-R69 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS | 2025-09-09 19:18:00 | Comet | CATCH | ||
| 6 | MPEC 2025-S35 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS | 2025-09-16 19:04:00 | Comet | CATCH | ||
| 7 | MPEC 2025-S298 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS | 2025-09-30 17:23:00 | Comet | CATCH | ||
| 8 | MPEC 2025-T42 DAILY ORBIT UPDATE (2025 October 2) | 2025-10-02 12:06:00 | ||||
| 9 | MPEC 2025-T80 OBSERVATIONS AND ORBITS OF COMETS AND A/ OBJECTS | 2025-10-03 21:21:00 | Comet | CATCH | ||
| 10 | MPEC 2025-T165 COMET C/2025 Q3 (ATLAS) | 2025-10-15 21:30:00 | Comet | CATCH |
Objects Observed by This Station (50 total)
| Object | Observations | Discoveries | First Obs | Last Obs | Magnitude | MPECs |
|---|---|---|---|---|---|---|
| 0065P | 13320 | 0 | 2025-09-26 | 2025-09-26 | 18.4 | 333 |
| 0047P | 9460 | 0 | 2025-07-20 | 2025-09-25 | 15.8 | 110 |
| CK17K020 | 7120 | 0 | 2025-09-25 | 2025-09-25 | 19.2 | 178 |
| 0078P | 7084 | 0 | 2025-07-22 | 2025-09-21 | 17.6 | 161 |
| 0240P | 6966 | 0 | 2025-07-25 | 2025-09-25 | 15.2 | 81 |
| CK23A030 | 6966 | 0 | 2025-07-20 | 2025-09-23 | 18.4 | 86 |
| CK24E010 | 5580 | 0 | 2025-07-20 | 2025-09-24 | 14.7 | 45 |
| 0048P | 5198 | 0 | 2025-07-20 | 2025-09-21 | 19.3 | 113 |
| CK21G020 | 5014 | 0 | 2025-07-20 | 2025-09-26 | 16.9 | 109 |
| CK21S030 | 5000 | 0 | 2025-09-21 | 2025-09-21 | 21.0 | 125 |
| CK23R010 | 4872 | 0 | 2025-08-26 | 2025-09-24 | 16.7 | 58 |
| CK22E020 | 4400 | 0 | 2025-07-20 | 2025-09-21 | 15.1 | 100 |
| CK24J030 | 3024 | 0 | 2025-08-27 | 2025-09-24 | 16.6 | 36 |
| CK23C020 | 2684 | 0 | 2025-07-20 | 2025-09-21 | 16.5 | 61 |
| 35107 | 2584 | 0 | 2025-07-23 | 2025-07-25 | 16.6 | 646 |
| K25F22A | 2200 | 0 | 2025-09-25 | 2025-09-25 | 18.9 | 55 |
| 03752 | 2144 | 0 | 2025-07-22 | 2025-07-23 | 18.2 | 536 |
| CK23H050 | 2040 | 0 | 2025-09-21 | 2025-09-21 | 17.6 | 51 |
| 0105P | 1960 | 0 | 2025-09-24 | 2025-09-24 | 19.9 | 49 |
| 0302P | 1840 | 0 | 2025-09-21 | 2025-09-21 | 17.1 | 46 |
| 0131P | 1720 | 0 | 2025-09-21 | 2025-09-21 | 19.7 | 43 |
| CK24A010 | 1680 | 0 | 2025-09-25 | 2025-09-25 | 17.1 | 42 |
| CK25A060 | 1660 | 0 | 2025-08-27 | 2025-09-26 | 10.9 | 10 |
| CK24N030 | 1584 | 0 | 2025-07-20 | 2025-09-21 | 17.9 | 36 |
| 0145P | 1386 | 0 | 2025-08-27 | 2025-09-25 | 17.6 | 33 |
| 0486P | 984 | 0 | 2025-07-25 | 2025-09-25 | 17.8 | 12 |
| CK24G040 | 924 | 0 | 2025-08-29 | 2025-09-21 | 19.0 | 22 |
| CK24G060 | 924 | 0 | 2025-08-29 | 2025-09-26 | 18.1 | 22 |
| 0493P | 882 | 0 | 2025-07-25 | 2025-09-25 | 17.5 | 21 |
| 0024P | 560 | 0 | 2025-09-25 | 2025-09-25 | 18.2 | 14 |
| 0491P | 560 | 0 | 2025-09-26 | 2025-09-26 | 18.9 | 14 |
| 0351P | 462 | 0 | 2025-08-27 | 2025-09-24 | 18.4 | 11 |
| 85953 | 458 | 0 | 2025-04-03 | 2025-04-03 | 14.7 | 229 |
| 0502P | 360 | 0 | 2025-09-24 | 2025-09-24 | 19.8 | 9 |
| CK25J010 | 360 | 0 | 2025-09-21 | 2025-09-21 | 18.3 | 9 |
| CK22N020 | 252 | 0 | 2025-07-23 | 2025-07-25 | 15.0 | 63 |
| CK25R010 | 240 | 0 | 2025-09-21 | 2025-09-21 | 18.6 | 6 |
| 0003I | 200 | 0 | 2025-07-20 | 2025-08-29 | 12.7 | 25 |
| CK25R030 | 160 | 0 | 2025-09-25 | 2025-09-25 | 19.9 | 4 |
| 0188P | 106 | 0 | 2025-08-27 | 2025-08-27 | 19.0 | 53 |
| CK25K010 | 96 | 0 | 2025-07-22 | 2025-08-29 | 14.8 | 12 |
| 0210P | 86 | 0 | 2025-08-27 | 2025-08-27 | 18.5 | 43 |
| CK23H010 | 62 | 0 | 2025-08-27 | 2025-08-27 | 17.8 | 31 |
| CK23X020 | 52 | 0 | 2025-08-26 | 2025-08-26 | 18.1 | 26 |
| 0243P | 46 | 0 | 2025-08-28 | 2025-08-28 | 19.6 | 23 |
| CK25Q030 | 36 | 0 | 2025-08-27 | 2025-09-25 | 18.4 | 1 |
| CK23R03N | 34 | 0 | 2025-08-29 | 2025-08-29 | 19.7 | 17 |
| CK25L020 | 26 | 0 | 2025-07-25 | 2025-07-25 | 18.3 | 13 |
| CK23R61S | 18 | 0 | 2025-08-27 | 2025-08-27 | 19.8 | 9 |
| PK16P050 | 16 | 0 | 2025-09-26 | 2025-09-26 | 20.5 | 8 |
List of Observers
| Observer Group | Total MPECs |
|---|---|
| K.Shima | 7 |
| Unknown | 3 |
| Individual Observer | Total MPECs |
|---|---|
| K.Shima | 7 |
| Unknown | 3 |
List of Measurers
| Measurer Group | Total MPECs |
|---|---|
| Unknown | 10 |
| Individual Measurer | Total MPECs |
|---|---|
| Unknown | 10 |
List of Facilities
| Facilities | Count |
|---|---|
| 0.4-m f/6.5 Ritchey-Chretien + CCD | 7 |
| Unknown | 3 |