Re: UNID

Rainer Kracht (r.kracht@elmshorn.netsurf.de)
Tue, 7 Sep 1999 20:00:21 +2

> While looking for another object, I saw what has proved to be an UNID.  The
> unknown object has a flash period of about 4.9 seconds and is in a
> high-altitude orbit.  Observed magnitude was perhaps +6 -> inv, and the maxima
> grew fainter as the object moved north.  As best I am able to determine at
> this time, these were two positions (UTC; first position less certain than
> second; using Tirion's "Bright Star Atlas 2000.0"):
> 
> 1999-09-07, 2:21:45-22:10, RA 20:30-50, Dec +10 - +11 
> 1999-09-07, 2:26:45, RA 21:10-15, Dec +21
> 
> Location: 30.314N, 97.866W, 280m
> 
> If I'd have known it would be a possibly significant UNID, I would have tried
> to fight off "binocular neck" a bit longer....
> 
    1
   30.3140   97.8660      920.    
UNK990907     
1 90907U          99250.08740308  .00000000  00000-0  00000+0 0    02
2 90907  57.9288 284.4979 0000010    .0000    .0677  6.05282527    07
  1 99  9  7  2 21 57.5  20 40.00  10.500 2000
  1 99  9  7  2 26 45.0  21 12.50  21.000 2000
  0  0

 1250  221 57.5    .2 20 40.01 10.497 20 40.00 10.500 -.003  .003  .004
 1250  226 45.0    .2 21 12.51 20.998 21 12.50 21.000 -.002  .002  .003

    1
   30.3140   97.8660      920.    
UNK990907     e & n set
1 90907U          99250.08740308  .00000000  00000-0  00000+0 0    02
2 90907  53.5944 280.1612 3400000 254.0108  64.7894  8.47000000    01
  1 99  9  7  2 21 57.5  20 40.00  10.500 2000
  1 99  9  7  2 26 45.0  21 12.50  21.000 2000
  0  0

 1250  221 57.5    .2 20 40.01 10.497 20 40.00 10.500 -.003  .003  .004
 1250  226 45.0    .2 21 12.51 20.998 21 12.50 21.000 -.002  .002  .003

    1
   30.3140   97.8660      920.    
UNK990907     e & n set
1 90907U          99250.08740308  .00000000  00000-0  00000+0 0    02
2 90907  49.3269 278.2608 7000000 307.4638   5.8093  2.00600000    04
  1 99  9  7  2 21 57.5  20 40.00  10.500 2000
  1 99  9  7  2 26 45.0  21 12.50  21.000 2000
  0  0

 1250  221 57.5    .1 20 40.01 10.497 20 40.00 10.500 -.004  .003  .004
 1250  226 45.0    .2 21 12.51 20.998 21 12.50 21.000 -.002  .002  .003

 Rainer