USA 276 approaching ISS again

From: Marco Langbroek via Seesat-l <seesat-l_at_satobs.org>
Date: Wed, 12 Jul 2017 18:16:22 +0200
Hi all,

Tomorrow afternoon, USA 276 will again make a series of close approaches to the
ISS, perhaps to as close as 24 km.

The following predictions are based on this elset:

USA 276
1 42689U 17022A   17190.03474342 0.00004845  00000-0  65965-4 0    05
2 42689  50.0454 286.7139 0019557 288.5093  71.3751 15.56610866    05

...which I constructed from Alberto Rango's recent observations.

Close approaches to within 500 km:

DATE            UT              KM
7/13/2017	00:35:52	476.7
7/13/2017	01:24:02	480.8
7/13/2017	02:08:26	405.2
7/13/2017	02:56:18	409.8
7/13/2017	03:41:01	333.7
7/13/2017	04:28:35	338.8
7/13/2017	05:13:36	262.2
7/13/2017	06:00:53	267.8
7/13/2017	06:46:10	190.6
7/13/2017	07:33:11	196.8
7/13/2017	08:18:45	119.1
7/13/2017	09:05:30	126.1
7/13/2017	09:51:20	 47.6
7/13/2017	10:37:49	 56.2
7/13/2017	11:23:55	 24.1
7/13/2017	12:10:08	 23.7
7/13/2017	12:56:30	 95.6
7/13/2017	13:42:28	 90.0
7/13/2017	14:29:05	167.2
7/13/2017	15:14:49	160.5
7/13/2017	16:01:40	238.7
7/13/2017	16:47:09	231.5
7/13/2017	17:34:15	310.3
7/13/2017	18:19:31	302.6
7/13/2017	19:06:50	381.9
7/13/2017	19:51:52	373.7
7/13/2017	20:39:25	453.5
7/13/2017	21:24:14	444.9

There is some leeway in both time and approach distance, which can have an error
up to a factor 2.

European observers might be able to spot ISS and USA 276 simultaniously in the
sky in the early morning of the coming night 12-13 July.

- 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 Jul 12 2017 - 11:17:06 UTC

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