Re: Fwd: YUNHAI 1-02 [44547, 2019-063A] Breakup?

From: JAY RESPLER via Seesat-l <seesat-l_at_satobs.org>
Date: Wed, 22 Dec 2021 20:24:26 -0500
Just got a chance to look for Yunhai.  Was steady for the half minute 
that I tracked it.

   40.330  74.445  170.   JAY RESPLER Monroe  NJ  2000  8.0 20 F F T T T

***  2021 Dec  22  Wed evening  *** Times are PM EST  ***  1729  623

  H  M  S Tim Azi El C Dir  Mag Dys F  Hgt Shd  Rng  EW Phs  R A Dec

44547 YUNHAI 1-02 19-63A    4.0
steady at mag 4.7
19 16 51     243 42    77  5.4   0 0  491 134  695 1.1 106 2234 9.7
19 16 59     247 42    80  5.3   0 0  491 133  688 1.0 106 2227 12.2
19 17 30     264 43 C  92  5.3   0 0  491 132  679 1.0 107 2158 22.5
-

Jay Respler
Monroe Township, New Jersey

------------------------------------------------------------------------
On 4/19/21 11:59 PM, Scott Tilley via Seesat-l wrote:
>
> Hi All
>
> Here's a Riddle in the Sky...
>
> Apparently YUNHAI 1-02 [44547, 2019-063A] experienced a breakup around 
> the Spring Equinox.
>
> The story gets more interesting...
>
> Via twitter, I was pinged by L-band weather band decoder buffs, that 
> YUNHAI 1-02 was claimed active on L-band on April 17. 2021. They are 
> decoding encrypted data from an object that appears to correlate to 
> YUNHAI 1-02 and that data recovery correlates to signals received 
> prior to the reported breakup.  I have received corroboration from 
> other decoder/observers that the data seen from this object is 
> consistent with YUNHAI 1-02.  Summary of report here:
>
> https://twitter.com/aang254/status/1383381305245585418
>
> Why do I trust the radio observation reports?  Tracking is required to 
> aim the fairly narrow beam antennas at the satellite to allow data 
> decoding to work over a prolonged period of the pass.  These are 
> experienced data receivers familiar with tracking a satellite 
> accurately within the requirements of their needs to decode the 
> signal. Therefore, the report should be followed up with other third 
> party observation to confirm claims.
>
> I haven't observed YUNHAI 1-02 myself on L-band or optically yet. If 
> anyone wants to have a look at YUNHAI 1-02 optically that would be 
> great.  Radio observations would be welcome too.  Both at the same 
> time, magical.
>
> Goals of observations should be to:
>
> 1 - Confirm object ID.
>
> 2 - Determine light curve.
>
> Some consideration to monitoring and analysis of the DEB objects may 
> be warranted.
>
> Regards,
>
> Scott Tilley
>
>
>
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Received on Wed Dec 22 2021 - 19:25:35 UTC

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