Calculate L-sub-S (Ls) for Mars
Described in "Enumeration of Mars Years and Seasons since the Beginning of Telescopic Exploration" Piqueux et al., Icarus: in press
Download IDL code for the Ls function
Methods document
Valid date range: -143416.09 to 52351.501 (days of 86400 seconds since UT noon January 1, 2000 - valid for years 1607 to 2143)
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