Zuma and USA 276

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Thu, 16 Nov 2017 01:34:55 +0100
Hi all,

I would like to draw attention to the fact that if the Zuma launch coming Friday
happens in the first 15-20 minutes or so of the launch window opening (Area
Warnings are for a window between 0:55 UT - 3:37 UT, Nov 17), this would mean
that Zuma would end up very close to USA 276 after orbit insertion.

Any launch moment between say 1:00 UT and 1:15 UT would be very interesting for
that reason.

USA 276 makes a pass right over Cape Canaveral around 1:08 UT on Nov 17 (not
just the orbital plane, but the actual satellite does).

Launch of Zuma near 1:02 UT would almost have the two satellites meet at orbit
insertion, assuming insertion at a similar orbital altitude. I pressume that
would be a bit too much and will not happen, but it wouldn't surprise me if the
launch nevertheless occurs in the first 15-20 minutes of the window, with the
two satellites ending up in very similar orbits and actually not too far distant
from each other.

I readily admit, this all to a high degree remains speculation and wishful
thinking of course. We'll see what happens. But I found it curious enough to
draw attention to it.

- Marco

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

Cospar 4353 (Leiden):     52.15412 N, 4.49081 E (WGS84), +0 m ASL
Cospar 4355 (Cronesteyn): 52.13878 N, 4.49937 E (WGS84), -2 m ASL
Station (b)log: http://sattrackcam.blogspot.com
Twitter: _at_Marco_Langbroek
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Received on Wed Nov 15 2017 - 18:35:43 UTC

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