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JCMT Pointing Reports - 2007

JCMT Pointing Reports - 2007

  • Jan 03 - HARP array-centred pointing
  • Jan 11 - HARP array-centred pointing - analysis for optimal (xo yo x' y')
  • Jan 13 - RxA pointing run
  • Jan 31 - CW inclinometry - substantial changes since November
  • Feb 06 - RxA pointing run - performance unimproved
  • Feb 10 - CW/CCW inclinometry
  • Feb 21 - RxA pointing run : new model installed 20070226, should yield (dS,dZ) = (2.0",2.2")
  • Feb 26 - CW inclinometry OK
  • Feb 28 - RxA pointing run : new model confirmed
  • Mar 01 - Analysis of fake, perfect, pointing data
  • Mar 04 - CW/CCW inclinometry OK
  • Mar 06 - HARP pointing - optimal (xo yo x' y' x2 y2) = (0 0 0 0 0 0) ?
  • Mar 14 - Further Analysis of fake, perfect, pointing data : 7 model parameters set to ( 0 0 0 0 0 0 0 )
  • Mar 18 - CW/CCW inclinometry OK
  • Apr 08 - CW/CCW inclinometry OK
  • Apr 09 - Pointing performance update
  • Apr 10 - Focus performance update
  • Apr 12 - RxA pointing run : model update
  • Apr 17 - HARP pointing
  • Apr 26 - HARP pointing update
  • May 02 - HARP FIVEPOINT-ing
  • May 06 - HARP pointing run - a solution for 4 k-mirror terms ?
  • May 11 - HARP pointing update
  • May 14 - HARP pointing - receptor position change
  • May 20 - CW/CCW inclinometry shows 8.8deg signature
  • May 22 - CW/CCW inclinometry OK
  • May 23 - Pointing & focus update
  • May 27 - CW/CCW inclinometry OK (Ch6 temperatures no good)
  • Jun 07 - HARP pointing tests - data seemingly unuseable
  • Jun 11 - CW/CCW inclinometry OK
  • Jun 24 - CW/CCW inclinometry OK
  • Jun 25 - K-mirror terms derived
  • Jun 29 - HARP & K-mirror pointing tests
  • Jul 02 - K-mirror terms applied to recent pointing runs
  • Jul 05 - Slicker derivation of K-mirror terms
  • Jul 13 - Tests of the new K-mirror parameter values
  • Jul 20 - All-sky HARP pointing incorporating K-mirror parameter values
  • Jul 21 - Fake pointing data : Ptest 3
  • Jul 22 - CW/CCW inclinometry OK - strain gauge data restored.
  • Jul 26 - RxA Pointing & Focus analysis : June & July 2007
  • Jul 27 - AZ/EL & RA/Dec pointing w/HARP - updated 20070801
  • Jul 29 - CW/CCW inclinometry OK
  • Aug 04 - The sign of the K-mirror corrections
  • Aug 07 - Elevation drive adjustment : impact on elevation excursions & HARP pointing
  • Aug 20 - recent HARP pointing statistics
  • Aug 23 - Assessment of Central Bearing Race Defect
  • Aug 23 - RA-Dec pointing with HARP : K-mirror terms toggled
  • Aug 30 - HARP pointing during August nights
  • Sep 03 - CW/CCW inclinometry OK
  • Sep 05 - HARP pointing during August nights - continued
  • Sep 09 - CW/CCW inclinometry OK
  • Sep 14 - Fake pointing data : Ptest 4 & 5
  • Sep 15 - CW/CCW inclinometry OK
  • Sep 19 - Tests of new K-mirror parameters
  • Sep 20 - The HARP M5 fore-optics mirror was turned around today
  • Sep 26 - Fake pointing data : Ptest 6 - 'near-constant' humidity is not enough
  • Sep 26 - A two-pronged approach to solving for the K-mirror parameters
  • Sep 27 - RxA pointing model still working well
  • Sep 28 - CW/CCW inclinometry OK
  • Oct 05 - Tests of latest K-mirror parameters
  • Oct 12 - Further analysis of pointing arcs - no case for extra flexure term or retention of (x2,y2)
  • Oct 14 - CW inclinometry OK
  • Oct 16 - Pointing & Focus analysis : Sep & Oct 2007
  • Nov 07 - 20070823 revisted : all-sky pointing analysis
  • Nov 16 - SMU & Telescope adjustments
  • Nov 18 - CW & CCW inclinometry - not used (spike !)
  • Nov 19 - CW inclinometry OK, model not updated
  • Nov 25 - CW & CCW inclinometry OK
  • Dec 14 - SMU & Telescope adjustments; historical trends of CA IA and NPAE
  • Dec 19 - Recent pointing with HARP
  • Dec 20 - RxA pointing model OK - rms's in (az,el) = (1.6",2.0")
  • Dec 20 - Further adjustments to zero-points of SMU tables & Telescope pointing
  • Dec 23 - CW & CCW inclinometry OK


Older reports         POINTING home page

Contact: Iain Coulson. Updated: Sun Dec 30 09:26:09 HST 2007

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