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Conversion of MS 64bit timestamps to JD [message #93861]

Thu, 10 November 2016 18:23

andrewcool777
Messages: 27
Registered: November 2012

Junior Member

Hi All,

I'm converting some astronomical files from SER format to FITS.

The SER format contains timestamps as Micrsoft 64bit integer, described as :-

“Holds IEEE 64-bit (8-byte) values that represent dates ranging from January 1 of the year 0001 through December 31 of the year 9999, and times from 12:00:00 AM (midnight) through 11:59:59.9999999 PM. Each increment represents 100 nanoseconds of elapsed time since the beginning of January 1 of the year 1 in the Gregorian calendar. The maximum value represents 100 nanoseconds before the beginning of January 1 of the year 10000.”

Does anyone have a prebuilt function to convert these 64bit integers to Julian Day?

Andrew

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[Message index]

		Conversion of MS 64bit timestamps to JD By: andrewcool777 on Thu, 10 November 2016 18:23
		Re: Conversion of MS 64bit timestamps to JD By: Dick Jackson on Fri, 11 November 2016 18:35
		Re: Conversion of MS 64bit timestamps to JD By: andrewcool777 on Sat, 12 November 2016 15:25
		Re: Conversion of MS 64bit timestamps to JD By: andrewcool777 on Sun, 13 November 2016 03:48
		Re: Conversion of MS 64bit timestamps to JD By: Dick Jackson on Mon, 14 November 2016 08:09

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