OOrb supports several different algorithms for asteroid orbit computation given astrometric algorithms. These include the following:

oorb --task=ranging --obs-in=OBSERVATIONFILE --orb-out=ORBITFILEOUT

where OBSERVATIONFILE (use of suffix, such as .mpc or.des, is mandatory!) contains the input astrometry and ORBITFILE contains the resulting sampled orbital-element probability-density function (PDF) in OOrb format. The orbits will be written to standard out if --orb-out= is omitted.

If astrometry of several different objects is included in OBSERVATIONFILE, then a command like

oorb --task=ranging --obs-in=OBSERVATIONFILE --separately

will process each object separately and write the output to a separate set of files. The separation into different objects is done using the numbers and/or designations. If both are specified for a line of astrometry, then the number overrides the designation.

oorb --task=lsl --obs-in=OBSERVATIONFILE --orb-in=ORBITFILEIN --orb-out=ORBITFILEOUT