[amsat-bb] when are TLE's too old to use?

[Andrew Glasbrenner]

For everything other than the ISS and lower, weeks. For sats in 600km and
higher, probably months if you are manual tuning and pointing.

YMMV.

73, Drew KO4MA

-----Original Message-----
From: AMSAT-BB <amsat-bb-bounces at amsat.org> On Behalf Of Ron VE8RT
Sent: Saturday, May 12, 2018 1:03 PM
To: amsat-bb at amsat.org
Subject: [amsat-bb] when are TLE's too old to use?

I understand that there won't be a good answer for how old can TLE's be
before they're of no use.  If you were going to be offline for an extended
period, roughly, for a LEO, how long would you go before they're worthless?

   Ron VE8RT

--
Ron VE8RT <ve8rt at yknwt.ca>
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