Under the hood
Nobody's word but the catalogues'.
Every verdict rests on a public catalogue or a published method, named on the line that used it.
K Known objects
The MPC's own orbit files (1.58 million orbits) through kete; IMCCE's SkyBoT as a second opinion; the MPC's WAMO for rows it already holds.
A Artificial satellites
SGP4 on CelesTrak's element sets and Project Pluto's TLEs: place and motion, from your station, at your times.
S Stars
ESA's Gaia DR3 at every row, carried to your date by proper motion.
M Motion and orbit
One great circle at a smooth rate, with your station's parallax; one orbit through every night by Project Pluto's Find_Orb.
C Class and desk
The MPC's digest2; the MPC's own rules for the ACK phrase, the object type, ADES and the test door.
>_ Agents and scripts
The MCP link · the API · the verdict's JSON Schema · llms.txt.