m |
m |
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: '''-f,''' '''--planet-file,''' '''--planet-files''' <ephem_file> [<...>] | : '''-f,''' '''--planet-file,''' '''--planet-files''' <ephem_file> [<...>] | ||
− | :: List of input ephemerides of planets that acts as a perturber in the Solar System. The list of files lasts up to the next command line argument (starting with a dash or double dash) or up to the end of the command line. Hence, one may safely use wildcard patterns in order to specify multiple | + | :: List of input ephemerides of planets that acts as a perturber in the Solar System. The list of files lasts up to the next command line argument (starting with a dash or double dash) or up to the end of the command line. Hence, one may safely use wildcard patterns in order to specify multiple perturbs simultaneously. |
: '''-b,''' '''--observer-file,''' '''--observer-files''' <ephem_file> [<...>] | : '''-b,''' '''--observer-file,''' '''--observer-files''' <ephem_file> [<...>] | ||
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: '''-l,''' '''--leap-file,''' '''--leap-seconds-file''' <file> | : '''-l,''' '''--leap-file,''' '''--leap-seconds-file''' <file> | ||
− | :: An IERS and IETF | + | :: An IERS and IETF compliant version of data file describing the announcements of leap seconds. One of such files can be https://www.ietf.org/timezones/data/leap-seconds.list. You may have to update this file regularly (once or twice per year). Predictions further than the last announced leap seconds are expected to have no insertions. Check the expire date of this file accordingly. |
=== Available commands: === | === Available commands: === | ||
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: query <RA>,<DEC> <radius> <time> | : query <RA>,<DEC> <radius> <time> | ||
− | :: Lists the objects with the respective ephemerides which has an apparent position within <radius> distance from the J2000 coordinate <RA>,<DEC>. <time> can either be an instance (in JDs) or an interval defined in the form of <JD_start>:<JD_end>. In the latter case, this command reports the JD when the object is (nearly) the closest to this point specified by <RA>,<DEC>. Currently, all of the angles (<RA>, <DEC> and <radius>) should be specified in | + | :: Lists the objects with the respective ephemerides which has an apparent position within <radius> distance from the J2000 coordinate <RA>,<DEC>. <time> can either be an instance (in JDs) or an interval defined in the form of <JD_start>:<JD_end>. In the latter case, this command reports the JD when the object is (nearly) the closest to this point specified by <RA>,<DEC>. Currently, all of the angles (<RA>, <DEC> and <radius>) should be specified in degrees. |