R: USA 276 approaching ISS again

From: Alberto Rango via Seesat-l <seesat-l_at_satobs.org>
Date: Thu, 13 Jul 2017 14:34:06 +0200
Hi Marco,

this morning,  two  o' clock zulu I was there,  at  my site 4542,
waiting for ISS  and  USA 276,  predicted transits respectively
culm.  02:12:00 23/342 (Kelso elset 17194.5287) and culm.
02:13:02  26/346  (Mike elset 17194.0788).
Well,  good seeing,  clear sky, temperature 24C.
Nice pass of ISS bright as usual and USA 276 particularly 
faint, mg+6.5.
I succeed in getting some points.

25544 98 067A   4542 F 20170713021206620 17 25 1300100+663800 18
25544 98 067A   4542 F 20170713021225050 17 25 1136047+691938 37
42689 17 022A   4542 F 20170713021305760 17 25 1320755+690613 37
 
Roma 4542  41.9683N   012.4545E  80 mt.

Regards,
 
Alberto.





> 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
>  -----
>  _______________________________________________
>  Seesat-l mailing list
>  http://mailman.satobs.org/mailman/listinfo/seesat-l



_______________________________________________
Seesat-l mailing list
http://mailman.satobs.org/mailman/listinfo/seesat-l
Received on Thu Jul 13 2017 - 07:34:56 UTC

This archive was generated by hypermail 2.3.0 : Thu Jul 13 2017 - 12:34:56 UTC