Date: Tue, 13 Apr 2004 16:27:32 -0400 (EDT)
From: jegunn
Subject: Re: Last night's boresightless scanStripe
Excellent sleuthing, Dan. Can you file a change request PR??
Scot, can we get this on the approved list??
thanks
--jim
On Tue, 13 Apr 2004, Dan Long wrote:
>      Here are several excerpts from the TCC log and murmur log for
> last night showing that one scanStripe doesn't have a boresight
> offset.  Skip to the end for the punchline if you don't want to wade
> through the details.
>
>
>
>       Here is a list of scanStripe commands shown in the murmur log.
>
> 2004-04-13 03:05:48Z sdsshost   IDA 70911  TEXTONLY trace 1, 0 jcb
> original: {scanStripe 24 N -67.5}
> 2004-04-13 03:21:56Z sdsshost   IDA 70911  TEXTONLY trace 1, 0 jcb
> original: {scanStripe 24 N -67.5}
> 2004-04-13 04:26:08Z sdsshost   IDA 70911  TEXTONLY trace 1, 0 jcb
> original: {scanStripe 24 N -25.5}
> 2004-04-13 05:33:52Z sdsshost   IDA 70911  TEXTONLY trace 1, 0 jcb
> original: {scanStripe 24 N -12.2}
> 2004-04-13 05:39:35Z sdsshost   IDA 70911  TEXTONLY trace 1, 0 jcb
> original: {scanStripe 24 N -14.7}
>
>
>
>       Here is a list of the night's scanStripe tracks and boreSight offsets
>       sent to the TCC.
>
>
> 2004-04-13 03:05:49.700Z 2 6 > Started; Cmd="track
> 113.74227414,12.67956155 FK5 /rotty=obj /rota=0 /rotwrap=MID
> /azwrap=MID
> /ScanVelocity=(0.0035080251234941816,0.0022693674576484148)
> /Name=\\\"stripe 24-N\\\""
> 2004-04-13 03:21:57.270Z 4 6 > Started; Cmd="track
> 113.74227414,12.67956155 FK5 /rotty=obj /rota=0 /rotwrap=MID
> /azwrap=MID
> /ScanVelocity=(0.0035080251234941816,0.0022693674576484148)
> /Name=\\\"stripe 24-N\\\""
> 2004-04-13 04:26:09.540Z 18 6 > Started; Cmd="track
> 154.78862932,31.17820867 FK5 /rotty=obj /rota=0 /rotwrap=MID
> /azwrap=MID
> /ScanVelocity=(0.0040002684821292302,0.0012058693941648521)
> /Name=\\\"stripe 24-N\\\""
> 2004-04-13 05:33:53.524Z 28 6 > Started; Cmd="track
> 170.21449288,34.09887430 FK5 /rotty=obj /rota=0 /rotwrap=MID
> /azwrap=MID
> /ScanVelocity=(0.0041330672582772917,0.00061157498596348299)
> /Name=\\\"stripe 24-N\\\""
> 2004-04-13 05:39:36.733Z 32 6 > Started; Cmd="track
> 167.24159705,33.69707747 FK5 /rotty=obj /rota=0 /rotwrap=MID
> /azwrap=MID
> /ScanVelocity=(0.0041136380884219687,0.00073092448473426725)
> /Name=\\\"stripe 24-N\\\""
>
>
> -bash-2.05b$ cat current.log |grep "offset bore"
> 2004-04-13 03:07:07.123Z 3 6 > Started; Cmd="offset boresight
> 0.10483333333333333,0.,0.,0. /PAbsolute /Wait /Computed"
> 2004-04-13 04:26:53.969Z 19 6 > Started; Cmd="offset boresight
> 0.10483333333333333,0.,0.,0. /PAbsolute /Wait /Computed"
> 2004-04-13 05:34:18.715Z 29 6 > Started; Cmd="offset boresight
> 0.10483333333333333,0.,0.,0. /PAbsolute /Wait /Computed"
> 2004-04-13 05:39:58.171Z 33 6 > Started; Cmd="offset boresight
> 0.10483333333333333,0.,0.,0. /PAbsolute /Wait /Computed"
>
>       Note 5 scanStripe commands, 5 track commands, but only 4
> boresight offsets.
>       There is no boresight offset associated with the second scanStripe/track.
>
>
>
>
>       First track command:
>
> 2004-04-13 03:05:49.700Z 2 6 > Started; Cmd="track
> 113.74227414,12.67956155 FK5 /rotty=obj /rota=0 /rotwrap=MID
> /azwrap=MID
> /ScanVelocity=(0.0035080251234941816,0.0022693674576484148)
> /Name=\\\"stripe 24-N\\\""
>  .
>  .
>  .
> 2004-04-13 03:07:06.573Z 2 6 : MoveItems="YYYYYYYYY"; SlewEnd
>  .
>  .
>       Associated boresight offset:
>  .
>  .
> 2004-04-13 03:07:07.025Z 0 0 I TCCStatus="SSS","NNN";
> TCCPos=-59.30,57.18,9.13; AxePos=-59.30,57.18,9.13
> 2004-04-13 03:07:07.118Z 0 0 I AxisErrCode="OK","OK","OK"
> 2004-04-13 03:07:07.119Z 0 0 I CurrArcOff = 0.293974, 0.003509,
> 4588542465.50496, 0.190174, 0.002270, 4588542465.50496
> 2004-04-13 03:07:07.120Z 0 0 I ObjNetPos = 114.043822, 0.003602,
> 4588542465.50496, 12.869565, 0.002266, 4588542465.50496
> 2004-04-13 03:07:07.121Z 0 0 I ObjInstAng = 57.167550, 0.000802,
> 4588542465.50496
> 2004-04-13 03:07:07.122Z 0 0 I SpiderInstAng = 9.348536, -0.002261,
> 4588542465.50496
> 2004-04-13 03:07:07.123Z 3 6 > Started; Cmd="offset boresight
> 0.10483333333333333,0.,0.,0. /PAbsolute /Wait /Computed"
> 2004-04-13 03:07:08.225Z 0 0 I TCCStatus="TTT","NNN";
> TCCPos=-59.30,57.18,9.13; AxePos=-59.30,57.18,9.13
> 2004-04-13 03:07:08.318Z 0 0 I AxisErrCode="OK","OK","OK"
> 2004-04-13 03:07:08.319Z 0 0 I CurrArcOff = 0.271290, 0.003509,
> 4588542459.04000, 0.175500, 0.002270, 4588542459.04000
> 2004-04-13 03:07:08.320Z 0 0 I ObjNetPos = 114.020538, 0.003601,
> 4588542459.04000, 12.854916, 0.002266, 4588542459.04000
> 2004-04-13 03:07:08.321Z 0 0 I ObjInstAng = 57.162366, 0.000801,
> 4588542459.04000
> 2004-04-13 03:07:08.322Z 0 0 I SpiderInstAng = 9.202434, -0.002270,
> 4588542459.04000
> 2004-04-13 03:07:09.984Z 0 0 I TrackAdvTime=4.48
> 2004-04-13 03:07:10.078Z 3 6 I MoveItems="NNNNNYNNN";
> SlewBeg=4588542469.40; SlewDuration=7.48
> 2004-04-13 03:07:10.079Z 3 6 I Boresight = 0.104833, 0.000000,
> 4588542466.40000, 0.000000, 0.000000, 4588542466.40000
> 2004-04-13 03:07:10.465Z 0 0 I TCCStatus="SSS","NNN";
> TCCPos=-59.51,57.20,8.96; AxePos=-59.31,57.18,9.12
> 2004-04-13 03:07:10.558Z 0 0 I AxisErrCode="OK","OK","OK"
>  .
>  .
>  .
> 2004-04-13 03:07:16.465Z 0 0 I TCCStatus="SSS","NNN";
> TCCPos=-59.53,57.21,8.95; AxePos=-59.53,57.21,8.95
> 2004-04-13 03:07:16.558Z 0 0 I AxisErrCode="OK","OK","OK"
> 2004-04-13 03:07:16.559Z 0 0 I CurrArcOff = 0.332201, 0.003509,
> 4588542476.40000, 0.214903, 0.002270, 4588542476.40000
> 2004-04-13 03:07:16.560Z 0 0 I ObjNetPos = 114.083068, 0.003603,
> 4588542476.40000, 12.894247, 0.002265, 4588542476.40000
> 2004-04-13 03:07:16.561Z 0 0 I ObjInstAng = 57.176299, 0.000804,
> 4588542476.40000
> 2004-04-13 03:07:16.562Z 0 0 I SpiderInstAng = 9.163039, -0.002269,
> 4588542476.40000
> 2004-04-13 03:07:17.462Z 3 6 : MoveItems="NNNNNYNNN"; SlewEnd
>  .
>  .
>       Second track command:
>  .
>  .
> 2004-04-13 03:21:57.270Z 4 6 > Started; Cmd="track
> 113.74227414,12.67956155 FK5 /rotty=obj /rota=0 /rotwrap=MID
> /azwrap=MID
> /ScanVelocity=(0.0035080251234941816,0.0022693674576484148)
> /Name=\\\"stripe 24-N\\\""
> 2004-04-13 03:21:58.949Z 0 0 I TCCStatus="TTT","NNN";
> TCCPos=296.41,54.12,6.41; AxePos=-62.90,58.14,6.97
>  .
>  .
>       A TCC connection is closed a suspicious 3 minutes after the track
>       command was issued.  Does anyone remember seeing the TCC connection
>       closed and restarted from the iop which issued the scanStripe?
>  .
>  .
> 2004-04-13 03:24:59.163Z 0 6 : UserNum=6; UserDeleted
> 2004-04-13 03:24:59.257Z 0 0 I UserNum=6; Text="User deleted from message hub"
>  .
>  .
>  .
> 2004-04-13 03:25:08.519Z 0 0 I UserNum=6; Text="User added to message hub"
> 2004-04-13 03:25:08.617Z 0 6 : UserNum=6; UserAdded
>  .
>  .
>       The slew ends a few seconds after the connection is reestablished.
>  .
>  .
> 2004-04-13 03:25:13.906Z 4 6 : MoveItems="YYYYYYYYY"; SlewEnd
> 2004-04-13 03:25:14.310Z 0 0 I TCCStatus="SSS","NNN";
> TCCPos=295.70,54.31,6.02; AxePos=295.70,54.31,6.02
>
>       No boresight offset is ever sent to the TCC for this track.
>
>       It appears iop (particularly tccPutAndWait in tccHandler.tcl) has a
>       180 second timeout on waiting for a response from the TCC.  The
>       second track command ended up unwrapping the azimuth resulting in a
>       slew in azimuth of nearly 360 degrees, which at 2 degrees per second
>       takes about 3 minutes.  The timeout causes iop to lose track of where
>       it is in the scanStripe command and so it never sends the boresight
>       offset once the connection is reestablished.
>
>       This timeout needs to be increased 30 seconds or so to allow a little
>       leeway in the timing of a slew that really does take 3 minutes.
>
>
> 				Cheers,
>
> 				  Dan
>
>
>
>
>
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