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Old 09-07-2010, 02:30 PM
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wasyoungonce (Brendan)
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wasyoungonce is offline
 
Join Date: Jul 2006
Location: Mexico city (Melb), Australia
Posts: 2,359
G11 DEC errors

Just jumping on this thread for advice guiding advice, G11/PHD.

My G11 is really behaving & guiding nicely in RA but DEC guiding starts off with an awful error~14 to 11 arc sec's. I noticed some slight elongation in my stars and I'm attributing this to my DEC.

I noticed that the error is large at the start of guiding but smooths down quickly to acceptable level. I only wait a few seconds between PHD "starts guiding" before starting exposures...maybe 5 seconds at best. Should I wait longer?

Anyway any ideas on cause of the DEC issue?

All graphs on 05/06 Jul and I changed from 3.0s guiding iterations to 3.5 sec's on the 06 jul. RA graphs are corrected for declination angle.
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Click for full-size image (dec 06 jul small.jpg)
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Click for full-size image (RA 05 Jul small.jpg)
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Click for full-size image (RA for 06 Jul small.jpg)
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Click for full-size image (dec 05 jul small.jpg)
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