Mount Analysis

Here we utilize the PHD2 software to create and review a baseline analysis of mounts

 

References

Mount: iOptron CEM60EC

More information on this mount can be found here.

PHD2 Debug Log (2020-11-11)

PHD2 Guide Log (2020-11-11)

PHD2 Log Viewer Analysis

Calibration (2020-11-11)

Observations

Can't complain on this calibration.

Guiding Assistant (2020-11-11) - 52 Minutes

Observations

Got some drift going on here in the RA axis, but I don't think its horrible:

RA Drift = +0.35"/min, DEC Drift = -0.09"/min

Polar Alignment Error: 0.3'

Tracking  (2020-11-11) - 46 minutes

Observations

Real issues with the RA axes. Drift in the guiding assistant (above) would indicate PHD is fighting with the mount to keep the star on track.  For imaging at FL of 2800, I'll need to have about 0.75 RMS, Not happening on the RA axes. here is the numbers:

RA:     RMS=0.33", Peak = -1.08"

DEC:   RMS=0.33", Peak =  1.10"

Total: = 0.46"

 

Under these conditions I could image at FL of 2800 and get good images.

 

 

 

 

 

 

Mount: LOSMANDY G11-G

More information on this mount can be found here.  This is the condition when purchased.  We are definitely having guiding issues.  Looks like RA is were we need to focus.  I Took the scope out the next night to get more data, and noticed that the RA motor gets hot and sometimes makes noises.  Also getting "RA axis Drag" notification.  Looks like some adjustments are needed here.

PHD2 Debug Log (2020-11-09)

PHD2 Guide Log (2020-11-09)

PHD2 Log Viewer Analysis

Calibration (2020-11-11)

Observations

Our DEC seems to be pulling to the left here.

Guiding Assistant (2020-11-11) - 52 Minutes

Observations

Got some significant drift going on here in the RA axis:

RA Drift = +2.0"/min (YIKES!), DEC Drift = +0.06"/min

Polar Alignment Error: 0.2'

Tracking  (2020-11-11) - 46 minutes

Observations

Real issues with the RA axes. Drift in the guiding assistant (above) would indicate PHD is fighting with the mount to keep the star on track.  For imaging at FL of 2800, I'll need to have about 0.75 RMS, Not happening on the RA axes. here is the numbers:

RA RMS=2.20", Peak = -13.80"

DEC RMS=0.59", Peak = 2.25"

Total = 2.28"

 

Got some issues with RA I'll need to work-out.

 

 

Astronomy

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