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last chance for Mir !!






---------------------- Forwarded by Eric Rosenberg/OCCVA on 2001-02-12 10:11
---------------------------





Walter Nissen <wnissen@freenet.tlh.fl.us> on 2001-02-11 10:39:49
                                                              
                                                              
                                                              
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 Subject: last chance for Mir !!                              
                                                              







Two fine opportunities to see the Mir Space Station are Monday and
Tuesday morning before dawn.  Possibly, the last two.  Possibly, weather
will mean there are none left.  Both the meteorological and orbital
calculations are pretty uncertain beyond a few days, so it is hard to
tell.  There may be a good pass on the evening of March 11, if Mir is
then still in orbit.

On Monday morning, Mir will exit the shadow of Earth about 6:12 am, (I'm
not fudging this, so be early!), about 13 degrees up at azimuth 320,
moving up to the right.  She will arc over Polaris, the North Star,
culminate 127 seconds later at 51 degrees over 35, and then pass midway
between Vega and Deneb, the 2 northernmost stars of the Summer Triangle,
then pass very near Altair, its Southern star.  Brightness is hard to
predict, anything from mag 0 to -4 would be unsurprising.

A group led by space pioneer Bob Citron is planning to observe the
reentry next month from a jetliner about 3 Mm (= 3000 km) South of
Tahiti:  http://www.mirreentry.com

Cheers.

---

For details about SeeSat-L, the satellite observers' mailing list, and
other information about visual observing, consult the Visual Satellite
Observers Home Page,
http://www2.satellite.eu.org/sat/vsohp/satintro.html.

---

Here is some raw data:
  39.000  77.000    0.    DC  <---------------- 1950 17.5 15 F F F F F

***  2001 Feb  12  *** Times are UT ***  2328 1114
 H  M  S  TIM AL AZI C   U  MAG   REVS  HGT SHD  RNG  EW PHS  R A   DEC
16609 Mir Complex                       .1  -3
11 14 15   .1 51  35 C 124 -1.1   36.3  298 219  379 3.2  97 19 4  62.7

***  2001 Feb  12  *** Times are UT ***  2329 1113
26603 SOYUZ-TM 31
23 48  6   .2 12 342 C  72 22.4   39.9  356 230 1205 1.1  98 1836  58.7
26698 STS-98
23 49 57   .1 12 342 C  72 22.4   34.0  359 225 1218 1.1  98 1835  58.8

***  2001 Feb  13  *** Times are UT ***  2329 1113
11 17  8   .2 65 218 C 128 -1.8   52.4  298 205  328 3.9  69 1436  17.9

***  2001 Feb  14  *** Times are UT ***  2330 1112
11 19 40   .4 26 223 C 132  -.2   68.4  297 178  616 1.8  56 1312 -13.2


***  2001 Feb  23  *** Times are UT ***  2340 11 1
 0 30 58  3.8 25 247    49   .8  205.0  272  23  586 1.4 127  148   -.7

***  2001 Feb  24  *** Times are UT ***  2341 1059
 0 31 33  4.4 27 300    56   .7  221.0  271  18  562 1.6 127 2359  38.4

***  2001 Feb  25  *** Times are UT ***  2342 1058
 0 31 41  5.2 18 327    62  1.4  237.0  271  21  760 1.5 115 2154  54.1

Higher ALtitudes are better.

The shuttle will be moving left to right, and this may require
recalculation due to maneuver(s); if you plan to observe and need my
assistance with that, please contact me.

---

Here are the two-line element sets used as a guide in generating these
indications of visibility:
MIR            oig
1 16609U 86017A   01041.19901507  .00148944  19959-4  35457-3 0  5464
2 16609  51.6422 110.2135 0016233 349.1180  44.2184 15.96102853856718
SOYUZ-TM 31
1 26603U 00070A   01041.49893053  .00155325  00000-0  11897-2 0  1015
2 26603  51.5744   8.1784 0009347  90.5386 269.9014 15.71057574 16052
STS-98         DOCK kene weav
1 26698U 01006A   01041.83576620  .00088000  00000-0  11500-3 0   10x
2 26698  51.5735   6.4522 0009043  81.3724  24.7174 15.70535496   469

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