[amsat-bb] Re: Keps! new cubesats...

Mark L. Hammond marklhammond at gmail.com
Mon Oct 31 07:50:32 PDT 2011


To show you how uncertain this whole thing is---this morning I went to Space-Track and got a set of keps for these birds.   Most were dated with "day 304".   

Just now, I went for another "fresh" set--they had gone back to "day 303" and when compared to the previous set from early this morning, and all the AOS times are about 2-3 minutes different!  

Heh.

73,

Mark N8MH 

At 09:25 AM 10/31/2011 -0400, James Cutler wrote:
>We suspect RAX-2 to be Object E.   Our ground station rotators though are failing so we're having difficulty tracking.  Our new Alfa Spids should arrive this week so we can fix.  
>
>The Utah team tracked objects B and D and they were able to communicate with their satellites.  Since they are using high gain, narrow beam antenna, there is little doubt that these objects are antyhing else. 
>
>--Jamie
>
>----
>James W. Cutler, Assistant Professor
>University of Michigan
>Department of Aerospace Engineering
>1320 Beal Avenue
>3013 FXB Building
>Ann Arbor, MI 48109-2140
>Ph: 734-615-7238
>Fax: 734-763-0578
><http://www.umich.edu/~jwcutler/>http://www.umich.edu/~jwcutler/
>
>
>On Sun, Oct 30, 2011 at 2:32 PM, Mark L. Hammond <<mailto:marklhammond at gmail.com>marklhammond at gmail.com> wrote:
>Carl,
>
>James Cutler "is" RAX-2...he's the faculty advisor to the students who built it.
>
>The website is most certainly behind, because we are just now getting KEPS via SpaceTrack.
>
>RAX-2 is probably one of the objects C, D, E, F, G listed below--but most likely NOT A, B, or H.
>
>Here they are again--grabbed just now:
>
>
>OBJECT A
>1 37849U 11061A   11302.66421759 +.00000178 +00000-0 +10000-3 0 00099
>2 37849 098.7116 238.9909 0001984 118.3667 333.6358 14.22213241000181
>OBJECT B
>1 37850U 11061B   11302.62545336 +.00000480 +00000-0 +51357-4 0 00069
>2 37850 101.6952 233.0228 0253352 289.9995 191.7441 14.77439893000169
>OBJECT C
>1 37851U 11061C   11302.94063822 +.00148715 +00000-0 +11864-1 0 00048
>2 37851 101.7071 233.4846 0255164 289.2247 068.1438 14.77565457000225
>OBJECT D
>1 37852U 11061D   11302.94064686 +.00001317 +00000-0 +11875-3 0 00172
>2 37852 101.7026 233.4847 0255574 288.8425 068.5226 14.77447189000225
>OBJECT E
>1 37853U 11061E   11302.94060934 +.00035908 +00000-0 +29140-2 0 00036
>2 37853 101.6965 233.4869 0254859 289.2129 068.1595 14.77516832000229
>OBJECT F
>1 37854U 11061F   11303.54982327  .00014649  00000-0  11859-2 0    30
>2 37854 101.6986 234.3636 0256120 286.9239 070.4027 14.77691305   296
>OBJECT G
>1 37855U 11061G   11302.87272701  .00005061  00000-0  41578-3 0    34
>2 37855 101.7081 233.4066 0257546 289.0631 068.2617 14.77654712   194
>OBJECT H
>1 37856U 11061H   11303.53330434  .00817553  77249-5  81830-3 0    44
>2 37856 107.3170 237.6855 0390613 329.7694 028.1472 15.39999395   318
>
>
>
>Mark N8MH
>
>At 02:18 PM 10/30/2011 -0400, Carl Rimmer W8KRF wrote:
>>None of these are RAX-2.  At least, not if the RAX-2 website is right.  There are people tracking RAX-2, so would you please share the keps you are using?
>>
>>Thanks,
>>
>>==========================================================================
>>Message: 4
>>Date: Sat, 29 Oct 2011 19:59:23 -0400
>>From: "Mark L. Hammond"<<mailto:marklhammond at gmail.com>marklhammond at gmail.com>
>>To: James Cutler<<mailto:jwcutler at umich.edu>jwcutler at umich.edu>,<mailto:amsat-bb at amsat.org>amsat-bb at amsat.org
>>Subject: [amsat-bb] Keps! new cubesats...
>>Message-ID:<<mailto:qnzP1h0094ltuWb05nzQRs at gmail.com>qnzP1h0094ltuWb05nzQRs at gmail.com>
>>Content-Type: text/plain; charset="us-ascii"
>>
>>Let the lottery begin...
>>
>>
>>OBJECT C
>>1 37851U 11061C   11302.87290423  .00363180  00000-0  28380-1 0    23
>>2 37851 101.7088 233.3889 0254268 289.0505 068.2827 14.77654778   204
>>OBJECT D
>>No Record
>>OBJECT E
>>1 37853U 11061E   11302.87289146  .00054233  00000-0  43824-2 0    22
>>2 37853 101.6952 233.3891 0255073 289.4018 067.9690 14.77521204   207
>>OBJECT F
>>1 37854U 11061F   11302.87272970  .00031269  00000-0  25123-2 0    26
>>2 37854 101.6987 233.3835 0256260 288.7205 068.6394 14.77687338   191
>>OBJECT G
>>1 37855U 11061G   11302.87272701  .00005061  00000-0  41578-3 0    34
>>2 37855 101.7081 233.4066 0257546 289.0631 068.2617 14.77654712   194
>>
>>
>>
>>
>>Mark L. Hammond  [N8MH]
>>======================================================================
>>
>>--
>>*Carl W8KRF*
>>_______________________________________________
>>Sent via <mailto:AMSAT-BB at amsat.org>AMSAT-BB at amsat.org. Opinions expressed are those of the author.
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>_______________________________________________
>Sent via <mailto:AMSAT-BB at amsat.org>AMSAT-BB at amsat.org. Opinions expressed are those of the author.
>Not an AMSAT-NA member? Join now to support the amateur satellite program!
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