Re: ZQ-3 R/B near re-entry

From: Marco Langbroek via Seesat-l <seesat-l_at_lists.seesatmail.org>
Date: Mon, 2 Feb 2026 15:02:08 +0100
Op 1-2-2026 om 18:56 schreef Marco Langbroek via Seesat-l:

> I so far have trouble getting results with breakup during or just before the
> 12:39 UTC first TIP. It requires significant masses separating well before the
> TIP time, and then the modelled reentry of the R/B no longer fits well with the
> TIP.

But within error margins of the modelling it might perhaps still be possible.


> Assuming a solid steel sphere, a 7.9 kg (12.4 cm diameter) object separating
> from the R/B at the previous perigee around 11:24 UTC at an altitude of about
> 109.5 km, does indeed survive the next perigee where the R/B reenters at 12:39
> UTC (first TIP), and reenters around 13:43 UTC near 5 S, 62 E, values close to
> the second TIP.

Facetious added note, inspired by the frivolities of certain US CEO's: I am
suddenly having hilarious visions of the dummy payload being a solid steel
bobble-head statue of the Chinese LandSpace CEO, with the head coming off....

- Marco


-----
Dr Marco Langbroek  -  SatTrackCam Leiden, the Netherlands.
e-mail: sattrackcam_at_langbroek.org

launchtower:    http://launchtower.langbroek.org
Station (b)log: http://sattrackcam.blogspot.com
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Received on Mon Feb 02 2026 - 06:02:27 UTC

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