NASA Logo, National Aeronautics and Space Administration
CDAWeb
+ FEEDBACK
CDAWeb banner

Wind 2014 Update

Wind Data Notice - Data between 2014 Oct. 26 and Nov. 7 were lost due to single event upsets in the command and attitude processor. Data from 2014 Nov. 7-21 have incorrect attitude and time values and partial data loss; scientific use is discouraged. SWE operations were fully restored 2014 Dec. 1. Data from 2014 Nov. 6 to 2015 Jan. 30 have transmission errors on the order of 1 bit every 1250 bytes, so use with caution. Wind returned to full operations after 2015 Jan. 30 17:50.

Short Timeline for Spacecraft Attitude and Clock Issues
================================================================================
  - 2014 Oct. 26 to Nov. 7:  No data due to single event upsets in the command and attitude processor (CAP1)
  - 2014 Nov. 7-20: partial coverage, CAP2 clock way behind real time and slewing towards true time by Nov. 20
  - 2014 Nov. 21:  error encoding disabled on CAP2
  - 2014 Oct. 26 to Nov. 26:  No SWE data
  - 2014 Nov. 26 to Dec. 1:  Only HK SWE data
  - 2014 Dec.  1:  SWE returned to full functionality
  - 2015 Jan. 21 ~22:30:20-23:36:00: attitude/telemetry info invalid
  - 2015 Jan. 28 ~20:16:00-21:44:00: attitude/telemetry info invalid
  - 2015 Jan. 29 ~22:59:00-23:47:00: attitude/telemetry info invalid
  - 2015 Jan. 30 ~16:28:00-17:50:00: attitude/telemetry info invalid
  - 2015 Jan. 30 17:50: return to full operations on CAP1

Data from 2014 Nov. 6 to 2015 Jan. 30 have transmission errors on the order of 1 bit every 1250 bytes, so use with caution. Use of data for 2014 Nov. 7-21 requires extensive analysis and correction and is discouraged.

NASA Logo -
	    nasa.gov