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Known time desc » History » Revision 11

Revision 10 (Anonymous, 07/07/2016 06:02 PM) → Revision 11/31 (Anonymous, 07/07/2016 06:20 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 |_.Type|_.VIRTUAL|_.nb of records|_.VAR_NOTES| 
 |Cluster FGM          |time_tags__CDFNAME       |ms                             |0                     |UT                   |Universal Time                 |Interval Time|Interval centred time tag                                      |CDF_EPOCH    |                       |normal                |field |CDF_EPOCH||normal|field missing| 
 |Cluster HIA            |time_tags__CDFNAME       |ms                             |0                     |UT                   |Center Time                            |Interval centred time tag                                      |CDF_EPOCH    |                       |normal                |field |CDF_EPOCH||normal|field missing| 
 |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 00:00:00|CDF_DOUBLE||normal|Unleaped seconds| 
 |Themis Efi              |VARNAME_epoch                         |field missing|0                                  |UT                   |Same as time var name|Unrelated                                                                |CDF_EPOCH    |true                |0                          |field |CDF_EPOCH|true|0|field missing| 
 |Themis Efi              |VARNAME_dot0_epoch0|msec               |EPOCH0      |VARNAME_dot0_epoch|msec|EPOCH0           |UT                   |Same as time var name|EPOCH of THEMIS time base                             |CDF_EPOCH    |                       |1                          |EPOCH |CDF_EPOCH|true|0|EPOCH of 01-Jan-1970 00:00:00| 
 |Themis Peer          |VARNAME_time                  |sec                   |TIME              |UT                   |Same as time var name|UTC, in seconds sinc 01-Jan-1970 00:00:00|CDF_DOUBLE|                       |> data                  |Unleaped seconds| 
 |Themis Peer          |VARNAME_epoch              |field missing |0                     |UT                   |Same as time var name|VARNAME                                                              |CDF_EPOCH    |                       |normal                |field missing| 
 |Themis Peer          |VARNAME_epoch0            |msec                |EPOCH0      |timebase        |Same as time var name|EPOCH of THEMIS time base                             |CDF_EPOCH    |                       |1                          |EPOCH of 01-Jan-1970 00:00:00| 
 |MMS fpi                  |Epoch (absent, Epoch_minus_var is present)            |s                   |0                     |Field missing                   | VARNAME|VARNAME                       |CDF_UINT1      |                       |1                           |VARNAME|