Re: Estimated Orion EFT-1 Elements

From: daryl bahls via Seesat-l <seesat-l_at_satobs.org>
Date: Sun, 30 Nov 2014 16:12:34 -0500
Launch at end of window look angles for Greg.  I believe sunset is ~17:40 UTC.

EFT-1 Final Orbit (end of window launch)
1 99003U 14999A   14338.69732639 -.00000000  00000-0 -00000-4 0 00020
2 99003 028.8000 115.1198 3154860 140.3900 021.9900 09.73703000000020

Cape_Town-To-99003
-------------------------------------------------------------------
                        Time (UTCG)          Azimuth (deg)    Elevation (deg)     Range (km) 
                  -----------------------    -------------    ---------------    ------------
                  4 Dec 2014 16:50:19.231          306.771              0.000     3805.428672
                  4 Dec 2014 16:51:19.000          309.111              4.957     3524.910098
                  4 Dec 2014 16:52:19.000          311.892             10.410     3268.426088
                  4 Dec 2014 16:53:19.000          315.242             16.362     3042.012863
                  4 Dec 2014 16:54:19.000          319.342             22.784     2851.108692
                  4 Dec 2014 16:55:19.000          324.438             29.553     2701.279888
                  4 Dec 2014 16:56:19.000          330.854             36.419     2597.485491
                  4 Dec 2014 16:57:19.000          338.966             42.983     2543.090203
                  4 Dec 2014 16:58:19.000          349.101             48.721     2538.946686
                  4 Dec 2014 16:59:19.000            1.268             53.087     2582.995366
                  4 Dec 2014 17:00:19.000           14.806             55.689     2670.629949
                  4 Dec 2014 17:01:19.000           28.376             56.478     2795.648732
                  4 Dec 2014 17:02:19.000           40.617             55.765     2951.337246
                  4 Dec 2014 17:03:19.000           50.830             54.035     3131.304320
                  4 Dec 2014 17:04:19.000           58.997             51.733     3329.942020
                  4 Dec 2014 17:05:19.000           65.438             49.174     3542.578880
                  4 Dec 2014 17:06:19.000           70.529             46.548     3765.443927
                  4 Dec 2014 17:07:19.000           74.597             43.959     3995.546914
                  4 Dec 2014 17:08:19.000           77.891             41.462     4230.539726
                  4 Dec 2014 17:09:19.000           80.596             39.077     4468.584398
                  4 Dec 2014 17:10:19.000           82.848             36.811     4708.242669
                  4 Dec 2014 17:11:19.000           84.745             34.661     4948.387041
                  4 Dec 2014 17:12:19.000           86.362             32.621     5188.131229
                  4 Dec 2014 17:13:19.000           87.754             30.682     5426.776508
                  4 Dec 2014 17:14:19.000           88.962             28.835     5663.770552
                  4 Dec 2014 17:15:19.000           90.020             27.073     5898.675860
                  4 Dec 2014 17:16:19.000           90.952             25.386     6131.145523
                  4 Dec 2014 17:17:19.000           91.778             23.767     6360.904495
                  4 Dec 2014 17:18:19.000           92.515             22.211     6587.735078
                  4 Dec 2014 17:19:19.000           93.176             20.710     6811.465590
                  4 Dec 2014 17:20:19.000           93.770             19.259     7031.961468
                  4 Dec 2014 17:21:19.000           94.307             17.854     7249.118243
                  4 Dec 2014 17:22:19.000           94.795             16.491     7462.855934
                  4 Dec 2014 17:23:19.000           95.238             15.165     7673.114569
                  4 Dec 2014 17:24:19.000           95.643             13.873     7879.850605
                  4 Dec 2014 17:25:19.000           96.013             12.612     8083.033996
                  4 Dec 2014 17:26:19.000           96.352             11.379     8282.645817
                  4 Dec 2014 17:27:19.000           96.664             10.172     8478.676329
                  4 Dec 2014 17:28:19.000           96.951              8.989     8671.123191
                  4 Dec 2014 17:29:19.000           97.216              7.827     8859.990916
                  4 Dec 2014 17:30:19.000           97.461              6.684     9045.288613
                  4 Dec 2014 17:31:19.000           97.687              5.560     9227.029847
                  4 Dec 2014 17:32:19.000           97.896              4.452     9405.231707
                  4 Dec 2014 17:33:19.000           98.091              3.359     9579.914148
                  4 Dec 2014 17:34:19.000           98.271              2.279     9751.099455
                  4 Dec 2014 17:35:19.000           98.438              1.212     9918.811808
                  4 Dec 2014 17:36:19.000           98.594              0.156    10083.076887
                  4 Dec 2014 17:36:27.916           98.616              0.000    10107.192915

 

Daryl

 

-----Original Message-----
From: Greg Roberts <grr_at_telkomsa.net>
To: daryl bahls <bahlsd_at_aol.com>; SeeSat <seesat-l_at_satobs.org>
Sent: Sun, Nov 30, 2014 12:14 pm
Subject: Re: Estimated Orion EFT-1 Elements


          
    Many          thanks Daryl for the update.
          
          Yes the chances              of seeing it are pretty remote but I would kick myself if              it was
              going to do                  anything interesting !  Unfortunately programs like                      HEAVENSAT                          and
                          GUIDE                              will not produce predictions from the                              second set of elements  since                                  with
                                  a perigee of -23 miles                                      it says the                                          satellite has decayed. However other                                              prediction
                                              programs                                                  may                                                      work - I had the                                                      same problem with                                                      the re-entry                                                          of the recent
                                                          Chinese                                                          moon probe.                                                          It would                                                          appear that                                                          the second                                                          stage also                                                          does a
                                                          re-entry                                                          at about the                                                          same time as                                                          the ORION                                                          capsule - pity                                                          if it had                                                          stayed in
                                                          orbit                                                          another few                                                          orbits it                                                          would have                                                          been a                                                          worthwhile                                                          target. ( but                                                          then I
                                                          guess                                                          cloudy weather                                                          would be a                                                          certainty!)
                                                          Best                                                          wishes
                                                          Greg
                                                            

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Received on Sun Nov 30 2014 - 15:12:58 UTC

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