Re: Two related satellites observed again...

Ed Cannon (ecannon@mail.utexas.edu)
Thu, 29 Oct 1998 04:06:39 -0500

Leo (Leo.Wikholm@canon.fi) wrote on behalf of Timo Kinnunen:

> Two related satellites observed
> -------------------------------
> 
> ... Objects appeared diagonally relative to direction of motion.
> Retained a separation of 20 arcmin.
> 
> Position:  RA  16h 30m  (Epoch 2000)
>           dec +40
> 
> Accurate to only 5 degrees.
> 
> Observer location: +60 14 29 N
>                     24 48 58 E
>                    +35m
> 
> Date: 1998 October 27
> Time (UT): 16.43.00 (accuracy 5 seconds)
> 
> Moved relatively fast (in a low orbit).
> Direction SW-NE, uncertain.

I get what looks like a pretty good match on the NOSS 2-2 trio.  I'm
pretty sure that one of the three is brighter than the other two. 
Note RA & Dec in the two right-most columns.  There's a six-second
uncertainty on 91-76E:

  60.241 335.184  110.   Finland                  2000  7.5 40 F F T F T

***  1998 Oct  27  Tue evening  *** Times are PM UTC  ***  1558  411

 H  M  S  Tim Al Azi C Dir  Mag Dys F  Hgt  Shd  Rng  EW Phs  R A   Dec

21809 NOSS 2-2 (E)   91 76E   3.0             4.4 c 4.0 
16 42 14   .1 43 271    21  6.3  15 2 1110 1057 1504  .6 121 1621  37.0
16 42 25   .1 46 273    22  6.2  15 2 1111 1049 1457  .6 118 1626  39.5
16 42 37   .1 48 274    23  6.0  15 2 1112 1040 1414  .6 115 1630  42.1
16 42 48   .1 51 276    25  5.9  15 2 1113 1030 1372  .6 113 1636  44.8
16 43  0   .1 54 278    27  5.7  15 2 1115 1019 1334  .7 110 1642  47.7
16 43 12   .1 56 281    29  5.6  15 2 1116 1008 1299  .7 107 1649  50.7

21799 NOSS 2-2 (C)   91 76C   3.0             4.4 c 4.0 
16 42 14   .0 43 271    21  6.3   9 2 1083 1027 1466  .6 120 1623  36.9
16 42 26   .0 46 272    22  6.1   9 2 1084 1019 1421  .6 118 1627  39.4
16 42 37   .0 48 274    23  6.0   9 2 1085 1010 1378  .6 115 1632  42.0
16 42 48   .0 51 276    24  5.8   9 2 1086 1000 1338  .6 113 1637  44.7
16 42 59   .0 54 278    27  5.7   9 2 1088  989 1301  .7 110 1643  47.6
16 43 10   .0 56 280    29  5.6   9 2 1089  978 1267  .7 107 1651  50.6

21808 NOSS 2-2 (D)   91 76D   3.0             4.4 c 4.0 
16 42 11   .0 41 270    20  6.4   9 2 1082 1034 1513  .6 123 1619  34.6
16 42 22   .0 43 271    21  6.3   9 2 1083 1027 1466  .6 120 1623  37.0
16 42 33   .0 46 272    22  6.1   9 2 1084 1018 1421  .6 118 1627  39.4
16 42 44   .0 48 274    24  6.0   9 2 1085 1009 1378  .6 115 1632  42.0
16 42 55   .0 51 276    25  5.8   9 2 1086 1000 1338  .6 113 1637  44.8
16 43  6   .0 54 278    27  5.7   9 2 1087  989 1301  .7 110 1643  47.6

Ed Cannon - ecannon@mail.utexas.edu - Austin, Texas, USA