Couplers and Worm Error - Losmandy GM8


Equipment TeleVue 101 Refractor, SBIG ST7E, Losmandy GM8, MaxIm DL
Coupler Stock couplers and driver discs, slight mis-alignment between driver shaft and worm
shaft as discovered when I took the mount back to the factory
Data 8:29 total guide time in 73 samples (3 sec. exposures)
Scale 9 micron pixel, 3.54 arc-secs/pixel
RMS X 4.00 pixel, (14.16 arc sec.)
RMS Y 3.93 pixel, (13.91 arc sec.)



Equipment TeleVue 101 Refractor, SBIG ST7E, Losmandy GM8, MaxIm DL
Coupler Stock coupler, stock drive disc, best align, TriFlow lubricant
Data 5:38 total guide time in 73 data points (3 sec. exposures)
Scale 9 micron pixel, 3.54 arc-secs/pixel
RMS X 1.72 pixel, (6.09 arc sec.)
RMS Y 4.00 pixel, (14.16 arc sec.)



Equipment TeleVue 101 Refractor, SBIG ST7E, Losmandy GM8, MaxIm DL
Coupler Stock coupler, stock driver disc, molly lubricant
Data 5:29 total guide time in 73 data points (3 sec. exposures)
Scale 9 micron pixel, 3.54 arc-secs/pixel
RMS X 1.02 pixel, (3.61 arc sec.)
RMS Y 2.83 pixel, (10.02 arc sec.)



Equipment TeleVue 101 Refractor, SBIG ST7E, Losmandy GM8, MaxIm DL
Coupler Stock coupler, loose nylon driver discs, molly lubricant
Data 5:29 total guide time in 73 data points (3 sec. exposures)
Scale 9 micron pixel, 3.54 arc-secs/pixel
RMS X 1.46 pixel, (5.17 arc sec.)
RMS Y 1.75 pixel, (6.20 arc sec.)



Equipment TeleVue 101 Refractor, SBIG ST7E, Losmandy GM8, MaxIm DL
Coupler Beam coupler
Data 5:17 total guide time in 73 data points (3 sec. exposures)
Scale 9 micron pixel, 3.54 arc-secs/pixel
RMS X 1.21 pixel, (4.28 arc sec.)
RMS Y 1.83 pixel, (6.48 arc sec.)

 



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