MJD-OBS

Concept · http://ontology.oais.info/fits/keyword/MJD-OBS

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Properties

definition Modified Julian Date (JD - 2,400,000.5) of the observation, whose value corresponds (by default) to the start of the observation, unless another interpretation is explained in the comment field. No specific time system (e.g. UTC, TAI, etc.) is defined for this or any of the other timerelated keywords. It is recommended that the TIMESYS keyword, as defined in Sect. 9.2.1 be used to specify the time system.
label MJD-OBS
notation MJD-OBS
prefLabel MJD-OBS
scopeNote Defined in section 8.3 of the FITS Standard 4.0; its value is floating point; default: DATE-OBS if given, otherwise no default.

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