1995
2000
2005
2010
2015
2020
2025
0
0.5
1
1.5
2
2.5
3
3.5
4
MPECType
Editorial
Discovery
OrbitUpdate
DOU
ListUpdate
Retraction
Other
Followup
FirstFollowup
P36 ULTRA Observatory,Suzhou | Number and type of MPECs by year
Year
#MPECs
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