Ray,
When you find a method of determining an EB minimum or short period pulsating variable maximum with an error of about 3.5 seconds, please let me know what it is.
To directly convert between different time standards, you could use “Coordinate Converter” from AstroImageJ:
Enter a time into any of the fields and press ENTER. Other time fields will be populated with the converted values.
Of course, you should provide the object’s coordinates and the coordinates of your observatory (select “Custom Lon, Lat and Alt Entry” to enter them or add your observatory in the observatories.txt file in the AstroImageJ directory (and set the parameters .coords.useCustomObservatoryList=true and .dpcoords.useCustomObservatoryList=true in AIJ_Prefs.txt))
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I don’t calcuate minimum, maybe someday. Just stating my worst case timing error. It gets worse when I forget to check that it is working.
Ray
Is your GPS mechanism a GPS pod that is readable by the computer with some software. Does it synchronize the computer clock? Just wondering how your system works.
Ray
Of course, Ray, it synchronizes system clock.
I use GPS for asteroid occultations, and optionally - for confident extremums timing.
Nice. I should get one of those.
Next, what software do you use to capture images?
Does the timestamp from the GPS pod get put into the FITS header of your images?
Does the GPS pod correct your computer time and then the imaging software use the computer time to timestamp the images FITs header?
For me, MaxIM timestamps images from the computer clock and the computer clock is corrected every minute ( every 60 seconds ) by Dimension-4 that gets time from the internet.
Ray
Of course, software (SharpCap in my case) uses system time.
QHY 174 is only in dreams 