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Holography history from RxH2 data

Errors do not include the systematic errors from the holography system itself, or from imperfections of the panels such as surface roughness and scalloping.
Datehologr.#rms (ls)rms (ss) rms (ls+ss)Comments
Apr 5 02RxH3 20.1 37.5 42.1 -
Jan 20 02RxH3 27.7 43.5 50.7 no adjustment
Jan 1 02RxH3 17.2 36.1 40.3 26.8 micron without the outer ring. Dish adjusted on Feb 1.
Dec 4 01RxH3 35.3 37.9 51.440.6 micron without the outer ring. Dish adjusted on Dec 28.
Sept 7 0149132.124.3 39.9But no improvement??? Is being investigated
Aug 14 0149032.228.4 40.9Dish adjusted 5 Sept. 2001 (except for about 60 broken motors).
Jul 15 0047713.017.0 20.0No adjustments made.
Nov 5 9947610.014.0 16.0No adjustments made.
Oct 7 994758.513.4 14.9No misaligned panels.
July 14 9945210.013.4 15.0No misaligned panels.
May 18 994497.212.4 13.2No misaligned panels.
Nov 15 9843512.015.8 18.3No misaligned panels.
Oct 9 9843310.015.0 18.0No misaligned panels. Temperature not stable during holography, resulting in non optimal flat surface
Sept 20 984249.011.0 15.0Surface OK. Some minor cosmetic errors in sector #5 due to phase board malfunctioning
Sept 4 9841613.019.0 22.81 panel in Sector 3 misaligned
Aug 15 9841530.523.0 37.01 panel in Sector 3 misaligned. Result from misaligned transmitter is evident
Aug 13 9840713.516.5  Severe astigmatism introduced by misaligned holography transmitter
July 6 9840120.526.0 35.5Bad surface 1st half of 1998

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Contact: Jan Wouterloot. Updated: Tue Jun 20 14:37:59 HST 2006

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