1995
2000
2005
2010
2015
2020
2025
0
50
100
150
200
250
300
350
MPECType
Editorial
Discovery
OrbitUpdate
DOU
ListUpdate
Retraction
Other
Followup
FirstFollowup
474 Mount John Observatory, Lake Tekapo | Number and type of MPECs by year
Year
#MPECs
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