Friday, March 20, 2015

Filter Offsets from CCDAutopilot

Ran the wizard last night on Wasat to check offsets.

I'd like to rerun it sometime when the star would remain a bit higher in the sky.  Also would like to use shorter exposures than the ones I programmed.  I used 10 second exposures on Lum (LPS P2) and 20 seconds on RGB.  10 second samples on Ha, SII, OIII, and Ha Continuum show that I could use much shorter times to reduce the overall duration of the script.

Here's the output:

Start: 22:32 19 Mar 2015

Ambient temp: 13.7

Star altitude: 61°

Reference filter: LPR P2

Measurements/filter: 5

CFZ threshold: 0



Measurement 1

Red             21086

Green           21204

Blue            21335

LPR P2          21316

Ha              21120

SII             21090

OIII            21027

Ha Continuum    21073



Measurement 2

Red             21003

Green           21101

Blue            21216

LPR P2          21222

Ha              21032

SII             21080

OIII            20974

Ha Continuum    21042



Measurement 3

Red             20919

Green           20995

Blue            21143

LPR P2          21120

Ha              20974

SII             20945

OIII            20922

Ha Continuum    20953



Measurement 4

Red             20808

Green           21004

Blue            21121

LPR P2          21038

Ha              20876

SII             20885

OIII            20914

Ha Continuum    20938



Measurement 5

Red             20903

Green           20924

Blue            21023

LPR P2          21018

Ha              20907

SII             20892

OIII            20968

Ha Continuum    20872







Filter          Median,Mean Offset

Red             -201, -199

Green           -116, -97

Blue            23, 25

LPR P2          0, 0

Ha              -146, -161

SII             -175, -164

OIII            -152, -182

Ha Continuum    -167, -167

Star altitude: 20°

Ambient temp: 8.6

End: 02:05 20 Mar 2015