Updated: Friday, 13-Jan-2023 22:07:35 EST
Source: ObsD.csv -- This is number observations and discoveries per given year processed by the MPC (starting from 1975).
Plot of the number of observations and discoveries per given year.
Source: ObsCodesYrs.csv -- This is number of observatory_codes per given year (starting from 1975). Usually the observatory_code uniquely identifies the location of the observatory.
Plot of the number of observatory_codes per given year.
For a given year (2021, for example) and for a given observatory_code (F51, for instance), it provides the total number of observations (#Obs), the total number of discoveries (#Disc), and two big categories: itemized objects and itemized observations.
An object is a unique body (minor planet, comet, asteroid...). It could be multiple observations of the unique body. For example, for the year 2021 the F51 observatory_code had 100+ observations of the comet 7P.
Each itemized category (objects and observations) are divided by the same set of sub-categories: