[amsat-bb] BY70-1

PY5LF py5lf at falautomation.com.br
Fri Dec 30 13:42:52 UTC 2016

Thank you for the explanation.
I got the fresh Tles from Celestrack today, but looks not correct.

2016-12-30 11:14 GMT-02:00 Nico Janssen <hamsat at xs4all.nl>:

> If you are still using yesterday's TLE set, then you will indeed find
> that BY70-1 is now about half a minute earlier. The problem is that
> the TLEs for this satellite are not stable yet in the first days after the
> launch. The right value for e.g. the decay rate has not yet been
> established. So for the time being you need to make sure you use the
> most recent TLE set that is available.
> By the way, the two SuperView satellites are now using their own
> propulsion system to increase their altitude, preventing an early decay.
> As BY70-1 does not have any propulsion, it is stuck in its low orbit.
> 73,
> Nico PA0DLO
> On 30-12-16 13:42, PY5LF wrote:
>> Hi
>> We had a low pass over here minutes ago and i felt the keps BY70-1 are
>> wrong .
>> I start to hear 25 seconds before . Does anyone feels the same ?
>> 73
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