[amsat-bb] Re: Epoch time of Keplerian elements.

[Franklin Antonio]

At 01:56 PM 5/22/2007, HEYLER YESID LEDEZMA LEUDO wrote:
>¿The epoch time calculated in Keplerian Elements 
>is a Julian date or is a Gregorian date?. I 
>think than is a Greogorian date, but I am not sure.

I understand your confusion.  The date is 
specified using the Gregorian calendar.  The Julian calendar is obsolete.

Dates used in astronomical calculations are often 
referred to as "Julian Dates", but this does not 
refer to the Julian calendar.  Instead, this 
simply means a number that indicates the number 
of days since some agreed-upon time.