900 Moriyama

• Country: Japan
• State:
• County:
• City: Moriyama
• Observatory Type: optical
• Old Names: None
• Website:
• Where is this observatory?

Last update: UTC 2026-02-24 06:53:03

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	60	0	0	5	8	0	0	0	44	3
2025	263	0	0	31	39	0	0	0	178	15
2024	225	0	0	37	57	0	0	0	112	19
2023	152	0	0	30	40	0	0	0	72	10
2022	154	0	0	33	30	0	0	0	77	14
2021	115	0	0	17	23	0	0	0	66	9
2020	9	0	0	1	0	0	0	0	7	1
2019	14	0	0	2	1	0	0	0	11	0
2018	18	0	0	1	1	0	0	0	16	0
2017	34	0	0	11	1	0	0	0	21	1
2016	60	0	0	20	2	0	0	0	33	5
2015	80	0	0	19	6	0	0	0	50	5
2014	117	0	0	33	8	0	0	0	60	16
2013	76	0	0	33	11	0	0	0	29	3
2012	86	0	0	31	4	0	0	0	45	6
2011	39	0	0	19	3	0	0	0	15	2
2010	128	0	0	86	9	0	0	0	28	5
2009	197	0	0	152	16	0	0	0	27	2
2008	146	0	0	128	7	0	0	0	8	3
2007	17	0	0	15	2	0	0	0	0	0
2006	0	0	0	0	0	0	0	0	0	0
2005	3	0	0	2	1	0	0	0	0	0
2004	22	0	0	21	0	0	0	0	1	0
2003	45	0	0	40	1	0	0	0	3	1
2002	0	0	0	0	0	0	0	0	0	0
2001	9	0	0	2	2	0	0	0	5	0
2000	48	0	0	2	24	0	0	0	22	0
1999	30	0	0	5	19	0	0	0	6	0
1998	29	0	0	11	9	0	0	0	9	0
1997	15	0	0	12	0	0	0	0	3	0
1996	15	0	0	14	0	0	0	0	1	0
1995	0	0	0	0	0	0	0	0	0	0
1994	2	0	0	2	0	0	0	0	0	0
1993	0	0	0	0	0	0	0	0	0	0