JD2Marslsubs
Contents: Description, Arguments, Usage, Examples, Sub-Functions, Related Functions, Source Supported Under Version: > 1.18
Description Convert the input Julian date to a Martian LsubS
Arguments and Return Values Parameters: Julian date (in either J2000 or JD) Return Value: The corresponding solar longitude for mars
Usage Syntax: Jd2Marslsubs(JD [, J2000=BOOL]) The Julian Date (JD) is a continuous count of days since noon UTC on January 1, 4713 BCE in the proleptic Julian calendar. Coordinated Universal Time (UTC) is the basis for the time system used in everyday life. In order to keep UTC consistent with the Earth's slightly variable rate of rotation, leap seconds are occasionally inserted into UTC. Terrestrial Time (TT) is a time system with no leap seconds. Returns double-precision Julian Dates in Terrestrial Time. The returned values are as accurate as the input, although that accuracy may be further limited by uncertainty in Delta-T. See the function DeltaT for details. For more information, see http://heasarc.gsfc.nasa.gov/docs/xte/abc/time_tutorial.html and http://www.giss.nasa.gov/tools/mars24/help/algorithm.html. When JD2Marslsubs() is entered without any arguments, it prints its description, as shown below.
Examples dv> JD2Marslsubs() Convert a Julain data directly to Ls $1=Julian date J2000 = is date in J2000? (Default = 0) This function was modified from: giss.nasa.gov/tools/mars24 NOTE: This only works for JD > 2000 c.edwards dv> jd=JD(2012,4,1,0,0,0) 2456018.500 dv> JD2Marslsubs(jd) 90.80322946 |
DavinciWiki Mini-Nav Bar Contents
Contact Developers
All other topics
Recent Library Changes Created On: 04-04-2014 |