Modificirovannaya yulianskaya data
Modificirovannaya yulianskaya data (MJD) svyazana s obychnoi yulianskoi datoi (JD) sleduyushim sootnosheniem:
MJD = JD - 2,400,000.5.
V otlichie ot yulianskih dnei, kotorye nachinayutsya v grinvichskii polden', nachalo modificirovannogo yulianskogo dnya prihoditsya na polnoch', chto sootvetstvuet prinyatomu segodnya deleniyu vremeni na sutki. Krome togo s 1859 po 2130 gody znacheniya MJD budut polozhitel'ny i dlya ih zapisi budet dostatochno pyati znachashih cifr (a ne semi, kak dlya JD).
Nachalo otscheta modificirovannyh yulianskih dnei (MJD=0) prihoditsya na polnoch' s 16 na 17 noyabrya 1858 goda po grigorianskomu kalendaryu.
Privedennoe vyshe opredelenie MJD utverzhdeno resheniem MAS.
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Publikacii s klyuchevymi slovami:
MJD - JD - usechennaya yulianskaya data - yulianskaya data - modificirovannaya yulianskaya data
Publikacii so slovami: MJD - JD - usechennaya yulianskaya data - yulianskaya data - modificirovannaya yulianskaya data |
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Sm. takzhe:
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