About the TLE sets, from my experience, if you keep the TLE set of the ISS the moment of the deployment it can be useful from a 3-4 days to 1-3 weeks depending on several factors like the size of the cubesat or the height of ISS at the deployment time.
By useful I mean that you will be able to spot the signal of the satellite in a waterfall but not exactly in the expected frequency, especially when the TLE set is too old.
If you are interested and you want to perform an analysis on real data let me know and I'll point you to the data and some tools to analyze them.
73, fredy
On 6/21/23 01:23, Brian Wilkins via AMSAT-BB wrote:
I recently became interested in learning about how the ISS launches the cubesats that arrive on the NanoRacks.
Where do they launch the cubesats from on the ISS?
Also, when a cubesat leaves the ISS, and it likely has no propulsion to prevent orbital decay, how long are the ISS TLEs relevant to the CubeSats position? Days weeks? -- 73, ko4aqf@gmail.com mailto:ko4aqf@gmail.com
Sent via AMSAT-BB(a)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. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/amsat-bb@amsat.org To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org