Observing conditions
16 décember 2023 - ZWO FF 80/600 - ASI462 - Sloan r' filter - PemPro - 0.5 s exposure - one measurement every 1.7 s
Star : Algenib, near local meridian
Gear period = 360 s
Observing conditions
20 décember 2024 - ZWO FF 80/600 - PlayerOne IMX533 - Astronomik red filter - Prism - 0.25 ms exposure - 4 fps
Graphs are 1 s moving average
Measurement near local meridian - Delta = 0°
Mount polar axis pointed to north pole to better than 1 arcmin
Gear period = 360 s
alpha rms = 1.1 arsec (1s moving average)
delta rms = 0.9 arsec (1s moving average)
Accuracy of polar aligment with iOptron iPolar Electronic Scope is better than 1 arcmin :
Observing conditions
24 March 2024 - ZWO FF 80/600 - PlayerOne IMX533 - Astrodon Sloan r' - Prism - 0.25 ms exposure - 4 fps
Measurement near local meridian - Procyon delta = 5°
Mount polar axis pointed to north pole to better than 1 arcmin
Gear period = 360 s
24 March 2024 - ZWO FF 80/600 - PlayerOne IMX533 - Astrodon Sloan r' - Prism - 0.25 ms exposure - 4 fps
Measurement near local meridian - Procyon delta = 5°
Mount polar axis pointed to north pole to better than 1 arcmin
Gear period = 360 s
Return to measurements of periodic error
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