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Question
photon-noize
I tried Ascom dithering during two night, but without much success. My idea was to use dithering without guiding for wide fields with a camera lens. My mount is an AZ EQ6, using the Ascom Celestron driver (not Eqmod!).
I enabled Ascom dithering in BYE, which happily shows the ditthering between exposures. But the result is that the mount moves in somewhat constant steps of ~+30 ... +40s in RA. See below for an excerpt of the log file. The "Dither settled to ..." values don't seem to be correct, the new mount position as shown on the control display and in BYE is the one shown in the log as "Current ..." of the next dithering step.
Same thing in 3.1.8 and 3.1.11 (.11 BTW is *way* slower in starting the program!). Any ideas?
Martin
2017-06-17 00:03:40,160 [5] INFO - ASCOM dithering... 2017-06-17 00:03:40,160 [5] INFO - ASCOM Dither is starting... 2017-06-17 00:03:40,338 [5] INFO - Current RA(18h42m28s) DEC(38°56'19") [...] 2017-06-17 00:03:50,055 [5] INFO - Dither settled to RA(18h42m20s) DEC(38°55'17") 2017-06-17 00:03:50,071 [5] INFO - Difference of RA(-0h0m8s) DEC(-00°01'02") [...] 2017-06-17 00:06:11,743 [5] INFO - ASCOM dithering... 2017-06-17 00:06:11,743 [5] INFO - ASCOM Dither is starting... 2017-06-17 00:06:13,564 [5] INFO - Current RA(18h42m59s) DEC(38°56'22") [...] 2017-06-17 00:06:23,413 [5] INFO - Dither settled to RA(18h42m59s) DEC(38°56'39") 2017-06-17 00:06:23,429 [5] INFO - Difference of RA(+0h0m0s) DEC(+00°00'17") [...] 2017-06-17 00:08:45,651 [5] INFO - ASCOM dithering... 2017-06-17 00:08:45,651 [5] INFO - ASCOM Dither is starting... 2017-06-17 00:08:45,967 [5] INFO - Current RA(18h43m37s) DEC(38°57'44") [...] 2017-06-17 00:08:55,448 [5] INFO - Dither settled to RA(18h43m28s) DEC(38°58'04") 2017-06-17 00:08:55,464 [5] INFO - Difference of RA(-0h0m9s) DEC(+00°00'20") [...] 2017-06-17 00:11:15,734 [5] INFO - ASCOM dithering... 2017-06-17 00:11:15,734 [5] INFO - ASCOM Dither is starting... 2017-06-17 00:11:15,987 [5] INFO - Current RA(18h44m8s) DEC(38°59'10") [...] 2017-06-17 00:11:25,744 [5] INFO - Dither settled to RA(18h44m9s) DEC(38°59'14") 2017-06-17 00:11:25,759 [5] INFO - Difference of RA(+0h0m1s) DEC(+00°00'04") [...] 2017-06-17 00:13:45,808 [5] INFO - ASCOM dithering... 2017-06-17 00:13:45,808 [5] INFO - ASCOM Dither is starting... 2017-06-17 00:13:46,078 [5] INFO - Current RA(18h44m48s) DEC(39°00'21") [...] 2017-06-17 00:13:55,923 [5] INFO - Dither settled to RA(18h44m46s) DEC(38°58'43") 2017-06-17 00:13:55,938 [5] INFO - Difference of RA(-0h0m2s) DEC(-00°01'38") [...] 2017-06-17 00:16:46,637 [10] INFO - ASCOM dithering... 2017-06-17 00:16:46,637 [10] INFO - ASCOM Dither is starting... 2017-06-17 00:16:46,890 [10] INFO - Current RA(18h45m25s) DEC(38°59'51") [...] 2017-06-17 00:16:56,445 [10] INFO - Dither settled to RA(18h45m24s) DEC(38°59'58") 2017-06-17 00:16:56,461 [10] INFO - Difference of RA(-0h0m1s) DEC(+00°00'07") [...] 2017-06-17 00:18:22,785 [10] INFO - ASCOM dithering... 2017-06-17 00:18:22,785 [10] INFO - ASCOM Dither is starting... 2017-06-17 00:18:23,054 [10] INFO - Current RA(18h46m4s) DEC(39°01'07") [...] 2017-06-17 00:18:32,730 [10] INFO - Dither settled to RA(18h46m6s) DEC(39°01'06") 2017-06-17 00:18:32,730 [10] INFO - Difference of RA(+0h0m2s) DEC(-00°00'01")
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