JCMT Pointing Reports - 1998

• 980112 - Pointing, before and after the Track Upgrades
• 980113 - tweak to pointing model.
• 980126 - Monitoring of central bearing problem.
• 980127 - track model update
• 980131 - track model update
• 980210 - Efficacy of empirical correction to the central bearing problem
• 980211 - daz -vs- az and the q5-q1 inclinometry difference
• 980217 - New track model installed
• 980223 - New track model installed
• 980301 - Radial arm inclinometry
• 980315 - Monitoring of central bearing problem.
• 980327 - Fourier transform analysis of radial arm inclinometry.
• 980408 - Analysis of tracking data of 980225
• 980411 - Monitoring of central bearing problem.
• 980412 - New track and pointing models installed, ripple measured
• 980419 - Monitoring of central bearing problem.
• 980426 - New radial arm inclinometry of rear right wheel
• 980501 - Monitoring of central bearing problem.
• 980502 - Monitoring of central bearing problem.
• 980504 - New track measurements obtained but not employed
• 980507 - Monitoring of central bearing problem.
• 980509 - New track model installed
• 980511 - Ian Pain's dial gauge measurements of the central bearing defect
• 980513 - Ripple in inclinometry no longer a cause for concern ?
• 980517 - New track model installed
• 980524 - New inclinometry
• 980601 - Monitoring of central bearing problem.
• 980608 - New inclinometry
• 980609 - Leg temperatures : rank -vs- mean temperature
• 980610 - New inclinometry, central bearing check, new pointing model
• 980621 - New track model
• 980622 - Central bearing check - using new SCUBA mapping method
• 980623 - Change to value of temp_slope
• 980627 - New track model
• 980702 - New inclinometry, central bearing check
• 980703 - Central bearing check
• 980705 - Remo's update on the Central bearing problem - amplitude = 11", phase shift, DREAM data.
• 980706 - Central bearing check
• 980717 - Central bearing check
• 980719 - Daz pointing errors a function of track model parameters (F1,F2) ?
• 980721 - New track model installed
• 980731 - Central bearing check
• 980809 - Central bearing check
• 980812 - Change to pointing model
• 980813 - Analysis of 'no-track' tracking data of 980809
• 980815 - New inclinometry and track model - large changes from last weekend
• 980819 - Analysis of 'no-track' tracking data of 980816
• 980820 - New CW & CCW inclinometry - and the benefit of a hybrid model
• 980821 - ITI - another dud
• 980825 - Link between central bearing problem & inclinometry non-repeatability (ip)
• 980828 - The track model - What is going on ?
• 980831 - Central bearing check
• 980904 - Central bearing check
• 980911 - LVDT measures of CB (IP)
• 980921 - Central bearing check
• 980925 - Inclinometry tests - Interim report by Ian Pain
• 980926 - New track model installed
• 980927 - Two Central bearing checks
• 980928 - repeated tracking across the same azimuth range
• 981002 - partial inclinometry runs of 980909, 980925
• 981006 - The effect of variable cryogenic weight upon inclinometry
• 981007 - Tracking experiment
• 981009 - Inclinometry tests
• 981012 - Antenna wheel loading measurements of 981009 (ip/dc)
• 981014 - Central bearing check no good
• 981015 - Afternoon inclinometry - an interim report
• 981016 - Reversion to the track model of 980517 ?
• 981023 - Response to pointing problems during interferometry last night
• 981025 - Track model updated
• 981026 - Central bearing check - no good
• 981027 - Central Bearing Load Adjustment and Recovery
• 981102 - Weekend inclinometry and central bearing measurement
• 981103 - Afternoon inclinometry since the CBA
• 981107 - Inclinometry between 981107 & 981112 shows loss of 'symmetry'
• 981110 - Inclinometry tests - elevation slews, wait-&-integrate
• 981115 - Central bearing measurement
• 981115 - Inclinometry with 'Spare' inclinometer on Left A-frame
• 981116 - Effects of putting weights on the antenna platform
• 981118 - Cold inclinometry restores symmetry
• 981118 - Static Inclinometry with 'Spare' inclinometer on Left A-frame
• 981119 - Report of meeting
• 981120 - Inclinometry with 'Spare' securely mounted inclinometer on Left A-frame
• 981122 - Update to report of 981120
• 981123 - Re-analysis of the repeated tracking experiment of 980923-27
• 981124 - Where on the track to put a possible calibration step
• 981124 - Investigations into inclinometry data for 1998 (RJSG)
• 981204 - Track model differences 1995 - 1998
• 981207 - Left- and Spare- Inclinometers detect 2-3" spikes
• 981208 - Spike sizes displayed -vs- time since 1995
• 981210 - Slippage in azimuth mimics inclinometry spikes
• 981213 - Central bearing measurement
• 981213 - Pointing model update - including data from 981215 with new model
• 981215 - Further Left- + Spare- Inclinometry
• 981215 - Report of meeting
• 981216 - Analysis of trends in the "difference" and "spike" time histories. (by RJSG)
• 981231 - Study of the detailed features of inclinometry datasets 1 (by RJSG)
• 981231 - Study of the detailed features of inclinometry datasets 2 (by RJSG)
• 981231 - Study of the detailed features of inclinometry datasets /cont

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