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Known time desc » History » Revision 10

Revision 9 (Anonymous, 07/07/2016 05:54 PM) → Revision 10/31 (Anonymous, 07/07/2016 06:02 PM)

h1. Known time description 

 h2. Double Time ranges : date from 01/01/1970 to 01/01/2100 

 * seconds from 01/01/1970 00:00:00    :                                                   0            to              4 102 488 000 
 * milliseconds from 01/01/1970 00:00:00    :                                            0            to      4 102 488 000 000      (ambiguity for the first 48days of 1970 with previous time format) 
 * seconds from 01/01/0000 00:00:00    :                         62 168 472 000            to            66 270 960 000 (no ambiguity) 
 * milliseconds from 01/01/0000 00:00:00 :          62 168 472 000 000             to 66 270 960 000 000 (no ambiguity) 
 * seconds from 01/01/2000 00:00:00    :                            - 946 728 000            to              3 155 760 000 ( ambiguity with first time format for time before 2000) 
 * milliseconds from 01/01/2000 00:00:00    :             - 946 728 000 000            to      3 155 760 000 000 (ambiguity for both time from 1970 and 2000) 


 h2. Known time description 


 |_.Mission Name |_.time var name                 |_. units |_.DEPEND |_.LABLAXIS|_.FIELDNAM      |_.CATDESC |_.Type|_.VIRTUAL|_.nb of records|_.VAR_NOTES| |_.Type|_.VIRTUAL| 
 |Cluster FGM          |time_tags__CDFNAME |ms           |0                     |UT                   |Universal Time|Interval centred time tag |CDF_EPOCH||normal|field missing| |CDF_EPOCH|| 
 |Cluster HIA            |time_tags__CDFNAME |ms           |0                     |UT                   |Center Time       |Interval centred time tag |CDF_EPOCH||normal|field missing| |CDF_EPOCH|| 
 |Themis Efi              |VARNAME_time               |sec          |TIME              |UT                   |Same as time var name|UTC, in seconds sinc 01-Jan-1970 00:00:00|CDF_DOUBLE||normal|Unleaped seconds| 00:00:00|CDF_DOUBLE|| 
 |Themis Efi              |VARNAME_epoch           |field missing|0              |UT                   |Same as time var name|Unrelated |CDF_EPOCH|true|0|field missing| 
 |Themis Efi              |VARNAME_dot0_epoch|msec|EPOCH0           |UT                   |Same as time var name|EPOCH of THEMIS time base |CDF_EPOCH|true|0|EPOCH of 01-Jan-1970 00:00:00| |CDF_EPOCH|true|