Observations match for location if the specified position is estimated to be on the plate. Observations match for time if they are within the specified delta of the input time.
Positions may be entered as target names or RA/Dec (J2000) positions in sexigesimal format with the RA and Dec separated by a comma or the sign of the declination. Times should be entered in ISO-style format (yyyy-mm-dd hh:mm:ss).