K2K-II: North Counter Hall GPS data error recovery log ------------------------------------------------------ updated November 27, 2004. mm-dd-yyyy HH:MM:SS-HH:MM:SS spill-spill #spills comment ========================================================================================================== 01-27-2003 07:06:45-07:07:14 53855-53868 14 GPS1 shifted by one spill => recovered from ttet data 02-07-2003 04:19:01-04:19:10 55037-55041 5 GPS1 shifted by one spill => recovered from ttet data 02-07-2003 04:22:07-04:23:28 55122-55159 38 GPS1 shifted by one spill => recovered from ttet data 02-07-2003 04:38:17-04:39:09 55564-55589 36 GPS1 shifted by one spill => recovered from ttet data 02-15-2003 23:24:37 02693 1 glitch in GPS1 data (ascii bit shift) => fixed 02-25-2003 06:57:20-06:57:59 13883-13901 19 GPS1 shifted + GPS2 gaps => recovered from ttet data 02-25-2003 06:58:19-06:58:32 13910-13916 7 GPS1 shifted + GPS2 gaps => recovered from ttet data 02-25-2003 07:14:06-07:14:49 14342-14361 20 GPS1 shifted badly + GPS2 gaps => recovered partially 02-25-2003 07:14:51-07:53:27 14362-14709 348 GPS data too scrambled to recover (DAQ/net frozen?) 03-12-2003 10:01:24-10:01:52 38286-38299 14 GPS1 shifted by one spill => recovered from ttet data 03-12-2003 10:16:00-10:34:36 38698-39197 500 GPS data too scrambled to recover (DAQ/net frozen?) 04-01-2003 10:28:14 00001 1 GPS1 incorrectly sorted => recovered from ttet data 04-04-2003 07:31:04 00001 1 GPS1 incorrectly sorted => recovered from ttet data 04-16-2003 18:02:27-18:03:17 05774-05798 25 GPS1 shifted + GPS2 gaps => recovered from ttet data 04-16-2003 22:14:45-22:16:08 12118-12156 39 GPS1 shifted + GPS2 gaps => recovered from ttet data ---------------------------------------------------------------------------------------------------------- 05-28-2003 05:53:45-05:53:48 15198-51201 4 GPS1 shifted + GPS2 gaps => recovered from ttet data 05-28-2003 05:56:29-05:56:43 15276-15287 12 GPS2 shifted + GPS1 gap => recovered by downshift 06-10-2003 02:31:03 00001 1 GPS1 incorrectly sorted => recovered from ttet data 06-11-2003 09:16:01-09:50:01 50529-00001 927 nubl01 frozen: data gaps then abrupt end; rebooted ---------------------------------------------------------------------------------------------------------- 10-03-2003 23:53:50-23:54:06 40614-40622 9 GPS1 shifted by one spill => recovered from ttet data 10-06-2003 07:37:03-07:42:18 49718-49863 146 GPS1 glitches/shifted => recovered from ttet/ltc6 data 11-18-2003 04:57:12-04:57:56 37690-37710 21 GPS1 offsync (sat. sync lost) by ~7.8 msec; GPS2 probably ok 11-23-2003 11:03:12 45628/45629 2 Double pulse! GPS1 shifted => recovered from ttet data 11-25-2003 09:55:26 36017/36018 2 Double pulse! GPS1 shifted => recovered from ttet data 11-26-2003 05:47:30-05:47:57 01255-01268 14 Double pulse causes GPS1/2 shift => recovered via backup 11-27-2003 01:17:04-01:17:15 33345-33351 7 Double pulse causes GPS1/2 shift => recovered via backup 11-27-2003 22:13:40-22:14:09 02222-02236 15 Double pulse causes GPS1/2 shift => recovered via backup 11-29-2003 09:09:02 59711/59712 2 Double pulse! GPS1 shifted => recovered from ttet data 11-29-2004 15:45:36-15:45:53 05056-05064 9 Double pulse causes GPS1/2 shift => recovered via backup 11-30-2003 12:56:43 39464/39465 2 Double pulse! GPS1 shifted => recovered from ttet data 11-30-2003 14:11:13 41509/41510 2 Double pulse! GPS1 shifted => recovered from ttet data 12-01-2003 09:33:36-09:33:54 62044-62054 11 Double pulse causes GPS1/2 shift => recovered via backup 12-10-2003 22:58:37-22:58:54 08538-08547 10 Double pulse causes GPS1/2 shift => recovered via backup ---------------------------------------------------------------------------------------------------------- 01-16-2004 06:41:59-07:18:36 11206-12230 1025 GPS data mostly bad or missing! Cannot be fixed! DAQ network problems? 01-16-2004 10:48:09-10:57:27 17817-18067 251 GPS data missing or bad! Cannot be fixed! DAQ network problems? 01-18-2004 02:25:36-02:27:23 15574-15624 51 Double pulse causes GPS1/2 shift => recovered via backup 02-02-2004 09:03:17-09:03:41 32850-32862 13 Double pulse causes GPS1/2 shift => recovered via backup 02-06-2004 23:44:06 53975/53976 2 Double pulse! GPS1 shifted => recovered from ttet data ---------------------------------------------------------------------------------------------------------- 10-01-2004 10:50:36-10:50:46 23285/23707 ?/burst GPS1/GPS2/TRG mismatched due to spill trigger burst (test?) 10-13-2004 12:11:55-12:12:02 53253-53256 5 Double pulse causes GPS1/2 shift => recovered via backup 11-01-2004 18:12:16 23632 1 Double pulse causes GPS1 shift => recovered via backup 11-02-2004 01:32:10-01:32:34 26735-26746 12 2 double pulses cause GPS1/2 shift => recovered via backup 11-02-2004 02:57:41-02:57:45 28827-28830 4 Double pulse causes GPS1/2 shift => recovered via backup 11-15-2004 09:12:12-09:15:35 00423-00472 50 Double pulses (lots!!) cause GPS1/GPS2 shifts => recovered via backup 11-15-2004 10:14:45 01334 1 Double pulse causes GPS1 shift => recovered via backup 11-15-2004 11:31:47 02262 1 Double pulse causes GPS1 shift => recovered via backup