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Goal: obtain slow azimuth scans with inclinometer data to derive a new track map following the azimuth track refurbishment

Note: Data taken from Sep 3, 2007 through noon Sep 20, 2007 have the Antenna manager bug which causes the OBSC_EL column in the Antenna FITS file to be uncorrected for refraction.

Operator: Kevin

Observer: Todd

Weather: clear skies, temperature range from start to end of az scans = 12.7 to 9.4C

UTC   Event
04:08    Started scan 578 = AzScansCW (from -3 to +363 deg)     2007_09_04_04:09:08.fits    end = 06:35:22 
         starting T=12.7C, wind=1.1m/s, P=929mBar, DP=12.5C,    MJD = 54347.1730092593 to 54347.2746759259 (Antenna sample 1 to 87841)
06:36    Finished;  T=10.0C, wind=1.1m/s, P=982mBar, DP=9.8C
06:36:33 Started scan 579 = AzScansCCW (from +363 to -85 deg)   2007_09_04_06:37:14.fits    end = 09:36:26
09:36:32 Finished;  T=9.4C, wind =0.7m/s, P=928mBar, DP=9.2     MJD = 54347.2758564815 to 54347.4003009259
                wind1 hourly average during az scans: 0.20 to 0.85, wind3: 0.04 to 0.84 m/s

09:42    Enable AS FEM+Zernike, begin all-sky pointing at azim=0, first scan=580
10:48    Daybreak.  Mostly clear above, but some fog in the valley.
23:59    Sunset, clear skies, T=21C, wind=1.0m/s, P=927mBar, DP=16.7C
         Final scan = 1299.  Pointing ran all day.

The analysis page is located at this link. Plots of the inclinometer results are attached below. The wear plate joint locations are labelled in plots attached here.

-- ToddHunter - 04 Sep 2007

Attachment: sort Action: Size: Date: Who: Comment:
before_after.pdf action 2192581 01 Oct 2007 - 16:34 ToddHunter old track vs. new track (inclinometer sum & diff)
newtrackrepeatsum.pdf action 82785 01 Oct 2007 - 16:35 ToddHunter repeatability of cw vs ccw scan of new track
before_after1.pdf action 607710 01 Oct 2007 - 16:35 ToddHunter simpler plot showing just the inclinometer sum

Topic TPTCSPNT_070904 . { Edit | Attach | Ref-By | Printable | Diffs | r1.12 | > | r1.11 | > | r1.10 | More }
Revision r1.12 - 08 Sep 2008 - 19:35 GMT - ToddHunter
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