Error creating new dark library at 4.5s exposure.

[George Hart]

I encountered a problem building a new dark library for my ASi120mm mini (ASCOM driver) using v2.6.13

I set 1s - 6s as the exposure range and PHD2 would say it lost contact with the camera for 15s when it tried the 1st 4.5s exposure.

Breaking the dark library building into two ranges, 1s - 4s and 4.5s - 6.s worked fine.

Logs uploaded here: https://openphdguiding.org/logs/dl/PHD2_logs_7xi5.z

Regards, George

[Bruce Waddington]

This isn't a PHD2 problem, it's a timeout between the ZWO camera driver and the hardware.  It could be a one-time event.  Alternatively, if you're seeing a lot of camera timeout problems during guiding, you need to trouble-shoot that using the trouble-shooting section of the PHD2 User Guide.  You have several options at this point:

1.  Loop camera exposures for an extended period of time and see if you get additional timeouts.  If so, track down and eliminate that problem. Use the camera exposure time you normally would for guiding

2.  Determine that you probably can't afford the luxury of taking guide exposures longer than 4 seconds and just rebuild your dark library with a maximum exposure time of 4 sec.

2.  Upgrade to the latest version of your camera driver and the latest PHD2 2.6.13dev7 development release: https://openphdguiding.org/development-snapshots/  and try again.

Regards,

Bruce

[George Hart]

Thanks Bruce.