I like space-track.org for this. You have to create an account but you can give it an object ID and a date range and it will give you the keps for that date range. Very convenient.
https://www.space-track.org/auth/login
On Sat, May 12, 2018 at 8:05 PM, Ray Hoad ray.hoad@mypbmail.com wrote:
I have every AMSAT TLE sent since October 8, 1993 on a backup hard drive.
Ray Hoad WA5QGD AMSAT-NA Orbital Elements Manager
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Armand SP3QFE Sent: Saturday, May 12, 2018 13:51 To: Andrew Glasbrenner glasbrenner@mindspring.com Cc: amsat-bb@amsat.org Subject: Re: [amsat-bb] when are TLE's too old to use?
Hello Everyone,
By the way... How to get the TLE from the past? eg. to check something form the past for some date in the past... such as 30 Apr. 2012?
73, Armand SP3QFE
On 2018-05-12 20:34, Andrew Glasbrenner wrote:
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@amsat.org On Behalf Of Ron VE8RT Sent: Saturday, May 12, 2018 1:03 PM To: amsat-bb@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@yknwt.ca _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb