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 <<O>>  Difference Topic AGBT08A_056_04 (r1.4 - 27 Feb 2008 - ToddHunter)
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  • Fast 8' Crab Nebula box scan: 2008_02_15_01:53:42
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  • Notes:
    • in the following plots, the "commanded" values were extracted from: /home/gbtlogs/Antenna-AntennaManager-azElCommands
    • and the "actual" values were extracted from /home/gbtlogs/ServoMonitor-ServoMonitor-Az_El_50Hz
  • Fastest 8' Crab Nebula box scan: 2008_02_15_01:53:42.fits (scan 22)
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  • More modest 7' box scan: 2008_02_15_02:05:58
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  • 2 degree lunar daisy scan: scan #57 = 2008_02_15_04:18:07
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  • 2 degree lunar daisy scan: scan #57 = 2008_02_15_04:18:07.fits
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%META:FILEATTACHMENT{name="boxazimaccel.pdf" attr="" comment="Crab Nebula box scan acceleration command vs time" date="1203992410" path="boxazimaccel.pdf" size="218835" user="ToddHunter" version="1.2"}%

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%META:FILEATTACHMENT{name="boxazimvel.pdf" attr="" comment="Crab Nebula box scan velocity command vs time" date="1203992663" path="boxazimvel.pdf" size="203183" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="boxazimaccelzoom.pdf" attr="" comment="Zoom of Crab N. box scan accel. command vs time" date="1203992995" path="boxazimaccelzoom.pdf" size="30591" user="ToddHunter" version="1.1"}%

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%META:FILEATTACHMENT{name="boxazimvel.pdf" attr="" comment="Crab Nebula box scan velocity command vs time" date="1204154842" path="boxazimvel.pdf" size="202942" user="ToddHunter" version="1.2"}% %META:FILEATTACHMENT{name="boxazimaccelzoom.pdf" attr="" comment="Zoom of Crab N. box scan accel. command vs time" date="1204154882" path="boxazimaccelzoom.pdf" size="30514" user="ToddHunter" version="1.2"}% %META:FILEATTACHMENT{name="fastcrabpos.pdf" attr="" comment="fast Crab Nebula boxscan: command position vs time" date="1204152008" path="fastcrabpos.pdf" size="199896" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="orionpos.pdf" attr="" comment="Orion Nebula box scan: commanded position vs. time" date="1204152148" path="orionpos.pdf" size="192031" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="boxpos.pdf" attr="" comment="Crab Nebula box scan: commanded position vs. time" date="1204152310" path="boxpos.pdf" size="184979" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="scan25pos.pdf" attr="" comment="Scan 25 box scan: commanded position vs. time" date="1204152929" path="scan25pos.pdf" size="189698" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="scan25vel.pdf" attr="" comment="Scan 25 box scan: commanded velocity vs. time" date="1204152947" path="scan25vel.pdf" size="207095" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="scan25accel.pdf" attr="" comment="Scan 25 box scan: commanded acceleration vs. time" date="1204152978" path="scan25accel.pdf" size="218043" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="drawscan25.pdf" attr="" comment="Scan 25 box scan: azimuth vs. elevation pattern" date="1204153130" path="drawscan25.pdf" size="50574" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="drawscan23.pdf" attr="" comment="Scan 23 box scan: azimuth vs. elevation pattern" date="1204153603" path="drawscan23.pdf" size="48883" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="scan23pos.pdf" attr="" comment="Scan 23 box scan: commanded position vs. time" date="1204153635" path="scan23pos.pdf" size="191044" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="scan23vel.pdf" attr="" comment="Scan 23 box scan: commanded velocity vs. time" date="1204153740" path="scan23vel.pdf" size="208370" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="scan23accel.pdf" attr="" comment="Scan 23 box scan: commanded acceleration vs. time" date="1204153763" path="scan23accel.pdf" size="219668" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="scan24accel.pdf" attr="" comment="Crab Nebula box scan: acceleration command vs time" date="1204154663" path="scan24accel.pdf" size="219454" user="ToddHunter" version="1.1"}%


 <<O>>  Difference Topic AGBT08A_056_04 (r1.3 - 26 Feb 2008 - ToddHunter)
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%META:FILEATTACHMENT{name="fastcrabaccel.pdf" attr="" comment="fast Crab Nebula box scan acceleration vs. time" date="1203992326" path="fastcrabaccel.pdf" size="212944" user="ToddHunter" version="1.2"}% %META:FILEATTACHMENT{name="orionaccel.pdf" attr="" comment="Orion Nebula box scan acceleration command vs time" date="1203992363" path="orionaccel.pdf" size="155923" user="ToddHunter" version="1.2"}% %META:FILEATTACHMENT{name="boxazimaccel.pdf" attr="" comment="Crab Nebula box scan acceleration command vs time" date="1203992410" path="boxazimaccel.pdf" size="218835" user="ToddHunter" version="1.2"}% %META:FILEATTACHMENT{name="fastcrabvel.pdf" attr="" comment="fast Crab Nebula box scan velocity command vs time" date="1203992532" path="fastcrabvel.pdf" size="211414" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="orionvel.pdf" attr="" comment="Orion Nebula box scan velocity command vs time" date="1203992624" path="orionvel.pdf" size="155367" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="boxazimvel.pdf" attr="" comment="Crab Nebula box scan velocity command vs time" date="1203992663" path="boxazimvel.pdf" size="203183" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="boxazimaccelzoom.pdf" attr="" comment="Zoom of Crab N. box scan accel. command vs time" date="1203992995" path="boxazimaccelzoom.pdf" size="30591" user="ToddHunter" version="1.1"}%


 <<O>>  Difference Topic AGBT08A_056_04 (r1.2 - 21 Feb 2008 - ToddHunter)
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  • 2 degree lunar daisy scan: 2008_02_15_04:18:07
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  • 2 degree lunar daisy scan: scan #57 = 2008_02_15_04:18:07
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    • Az,El at scan midpoint: 277.3449, 36.18737
    • MJD at scan midpoint = 54511.1805092593 = 04:19:56 UT
    • parallactic angle at scan midpoint = 60.3 deg (from Todd's VERIFY program)

 <<O>>  Difference Topic AGBT08A_056_04 (r1.1 - 15 Feb 2008 - ToddHunter)
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%META:TOPICINFO{author="ToddHunter" date="1203106320" format="1.0" version="1.1"}% %META:TOPICPARENT{name="CommissioningHistory"}%

Mustang science run AGBT08A_056_04

Some of the scans of interest to PTCS

  • Fast 8' Crab Nebula box scan: 2008_02_15_01:53:42
    • huge azimuth following error: >1 arcminute; tens of arcsec on QD
    • Az/El pattern (black = command, red = actual)
    • following error (black = cross-elevation, red = elevation)
  • More modest 7' box scan: 2008_02_15_02:05:58
  • Orion box scan: 2008_02_15_02:57:05
  • 2 degree lunar daisy scan: 2008_02_15_04:18:07
    • Analogous to Q-band scans obtained in 2005 and 2007
    • Will be useful to analyze and compare to Q-band results in PN51 and PN59 (soon to be updated)
    • Here is the lunar ephemeris table from JPL Horizons
Date__(UT)__HR:MN:SS R.A._(ICRF/J2000.0)_DEC APmag S-brt Illu% Ang-diam
2008-Feb-15 04:18:07 04 23 59.19 +26 34 19.6 -10.70 4.96 61.193 1954.382
2008-Feb-15 04:19:07 04 24 01.40 +26 34 19.9 -10.70 4.96 61.199 1954.291
2008-Feb-15 04:20:07 04 24 03.63 +26 34 20.1 -10.70 4.96 61.206 1954.200
2008-Feb-15 04:21:07 04 24 05.85 +26 34 20.3 -10.70 4.96 61.212 1954.109
2008-Feb-15 04:22:07 04 24 08.08 +26 34 20.5 -10.70 4.95 61.219 1954.018
2008-Feb-15 04:23:07 04 24 10.31 +26 34 20.7 -10.70 4.95 61.225 1953.926

-- ToddHunter - 15 Feb 2008 %META:FILEATTACHMENT{name="drawcrab.pdf" attr="" comment="fast Crab Nebula box scan trajectory (8' diameter)" date="1203104703" path="drawcrab.pdf" size="51152" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="drawboxacf.pdf" attr="" comment="Crab Nebula box scan trajectory (7' diameter)" date="1203104791" path="drawboxacf.pdf" size="44482" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="draworionbox.pdf" attr="" comment="Orion box scan trajectory" date="1203104818" path="draworionbox.pdf" size="45010" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="fastcrabcompare.pdf" attr="" comment="fast Crab Nebula box scan following errors" date="1203105688" path="fastcrabcompare.pdf" size="157296" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="crabcompare.pdf" attr="" comment="Crab Nebula box scan following errors" date="1203105727" path="crabcompare.pdf" size="155448" user="ToddHunter" version="1.1"}% %META:FILEATTACHMENT{name="boxorioncompare.pdf" attr="" comment="Orion Nebula box scan following errors" date="1203105831" path="boxorioncompare.pdf" size="156554" user="ToddHunter" version="1.1"}%


Topic AGBT08A_056_04 . { View | Diffs | r1.4 | > | r1.3 | > | r1.2 | More }
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