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Time Formats

JMARS has many fields where users can either input or display a time. The acceptable time formats are listed below, with the "#" symbol representing a single digit (0-9).

  1. Ephemeris Time (et)

et:#########   (ex: et:239719865) 

  1. Spacecraft Clock (sclk)

sclk:##########  (ex: sclk:0870915330)
sclk:#/##########   (ex: sclk:2/0870915330)

  1. Orbit

orbit:#####   (ex: orbit:25040)
orbit:#####+hh:mm:ss   (ex: orbit:25040+1:35:00)

  1. Coordinated Universal Time (UTC)

utc:yyyy-dddThh:mm:ss   (ex: utc:2007-218T19:45:00)
utc:yyyy-ddd//hh:mm:ss   (ex: utc:2007-218//19:45:00)
yyyy/mm/dd-hh:mm:ss   (ex: utc:2007/08/06-19:45:00)
yyyy MMM dd hh:mm:ss   (ex: utc:2007 aug 06 19:45:00) 

JMARS users in the Mars Space Flight Facility can run the showtime_themis script to translate a time in one of the acceptable formats into all other acceptable formats. For example, entering "orbit: 25000" will give the following result:

> showtime_themis orbit:25000
UTC:  2007-215 // 17:47:30.172
UTC:  2007 AUG 03 17:47:30.172
ET:   239435314.354880
SCLK:  2/0870630778.171
ORBIT:  25000+0:00:00.000000