Re: TLE format after Dec 31

Bjoern Gimle (
Wed, 29 Dec 1999 07:39:34 +0100

>the following Y2K elest, though _now_ in error, suggest the TLE format
>will remain the same.  The epoch date provided is January 2, 2000
>DMSP F15 (USA 147)
>1 25991U          00002.43559332  .00000457  00000-0  26148-3 0    27
>2 25991  98.8960  60.4417 0009248 269.1536  90.4266 14.14475454  2924
>Programs should have inserted routines which id such dates now as future
>epochs.  And will accept them as valid epochs (within limits--with or
>without the leading zeros) when 2000 arrives. Note the absence of the
>cospar (int'l launch id number) which is another factor programs should
QuickSat accepts the zero-filled Epoch, but complains 'Year>2099'
for blank-filled. (2.14B tested)

Predictions appear correct over New Year, and over Feb.29, and output
is correctly sorted.

00ddd epochs are determined to be more recent elsets than 99ddd epochs.

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