In the UARS report http://umpgal.gsfc.nasa.gov/www_root/homepage/uars-science/Weekly_Status/Weekly_Status_092305.htmlit is stated that on Sep 19 the thrusters were fired for calibration. APPENDIX A REAL-TIME COMMAND SHEETS Week ending 16 September 2005ORBIT AOS NO. SUBSYS REASON----- --- --- ------ ------76694 257/1255 05-324 MACS ENGINEERING BURN (STEP 1)76694 257/1411 05-324 MACS ENGINEERING BURN (STEP 3,5,6)76695 257/1447 05-324 MACS ENGINEERING BURN (STEP 7-24)AOS 257/1255 is the day in the year (sep 19) and the time (in UT??)***********UARS DE-BOOST ACTIVITY***********The first 18-minute thruster burn (first of 6 or 7 burns tolower the UARS orbit), was originally planned for 29 September2005. It is now being delayed until 4 October 2005.Greetings and clear, dark skiesLeo Barhorst, Medemblik NLCospar 4252 52.76350 N 5.09114 E 2 m ASLhttp://www! .home.versatel.nl/leobarhorst/index.html ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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