CATALOG OF PRECISELY REDUCED OBSERVATIONS

摘要

Each catalog includes all precisely reduced observations made during that period that have been checked and found to be without significant errors.nThese observations can be independently checked by determining their residuals from the best obtainable orbits. In practice, however, this is not so simple since the best orbits can be obtained only by the use of the same observations that are being checked. Thus we compute orbits regularly from only the precisely reduced observations, and evaluate those that deviate considerably from the orbits. Then, the positions are used again to test whether or not their new residuals meet standards for publication.