Mir during eclipse

Edward S Light (light@argoscomp.com)
Fri, 21 Jul 1995 08:38:28 -0400

In answer to Russell Eberst's question (whereabouts of Mir on
1991 July 11 1915-1935 Z), a simple but reliable program of mine
gives the following approximate positions from the elements:
    86 17 A 91192.67613487 .00028107
    51.6022 164.3632 0004334  88.6695 271.5055 15.58757240

  1991 Jul 11 19:10.0 Z, Lat North= -24.60, Long West= 74.22
  1991 Jul 11 19:11.0 Z, Lat North= -21.73, Long West= 71.61
  1991 Jul 11 19:12.0 Z, Lat North= -18.80, Long West= 69.11
  1991 Jul 11 19:13.0 Z, Lat North= -15.84, Long West= 66.70
  1991 Jul 11 19:14.0 Z, Lat North= -12.85, Long West= 64.38
  1991 Jul 11 19:15.0 Z, Lat North=  -9.83, Long West= 62.11
  1991 Jul 11 19:16.0 Z, Lat North=  -6.80, Long West= 59.89
  1991 Jul 11 19:17.0 Z, Lat North=  -3.75, Long West= 57.70
  1991 Jul 11 19:18.0 Z, Lat North=  -0.70, Long West= 55.53
  1991 Jul 11 19:19.0 Z, Lat North=   2.36, Long West= 53.36
  1991 Jul 11 19:20.0 Z, Lat North=   5.41, Long West= 51.18
  1991 Jul 11 19:21.0 Z, Lat North=   8.45, Long West= 48.98
  1991 Jul 11 19:22.0 Z, Lat North=  11.48, Long West= 46.73
  1991 Jul 11 19:23.0 Z, Lat North=  14.48, Long West= 44.43
  1991 Jul 11 19:24.0 Z, Lat North=  17.46, Long West= 42.08
  1991 Jul 11 19:25.0 Z, Lat North=  20.40, Long West= 39.61
  1991 Jul 11 19:26.0 Z, Lat North=  23.30, Long West= 37.06
  1991 Jul 11 19:27.0 Z, Lat North=  26.14, Long West= 34.37
  1991 Jul 11 19:28.0 Z, Lat North=  28.92, Long West= 31.56
  1991 Jul 11 19:29.0 Z, Lat North=  31.63, Long West= 28.55
  1991 Jul 11 19:30.0 Z, Lat North=  34.25, Long West= 25.36
  1991 Jul 11 19:31.0 Z, Lat North=  36.77, Long West= 21.96
  1991 Jul 11 19:32.0 Z, Lat North=  39.17, Long West= 18.31
  1991 Jul 11 19:33.0 Z, Lat North=  41.43, Long West= 14.40
  1991 Jul 11 19:34.0 Z, Lat North=  43.53, Long West= 10.20
  1991 Jul 11 19:35.0 Z, Lat North=  45.45, Long West=  5.69
  1991 Jul 11 19:36.0 Z, Lat North=  47.15, Long West=  0.86
  1991 Jul 11 19:37.0 Z, Lat North=  48.61, Long West=355.73
  1991 Jul 11 19:38.0 Z, Lat North=  49.81, Long West=350.30
  1991 Jul 11 19:39.0 Z, Lat North=  50.72, Long West=344.62

(A circular orbit is assumed - maximum in-plane error is 0.05 degrees )

Incidentally, some other positions for earlier that day are:
  1991 Jul 11 10:05.0 Z, Lat North=  2.11, Long West=272.75
  1991 Jul 11 10:15.0 Z, Lat North= 31.41, Long West=248.01
  1991 Jul 11 10:25.0 Z, Lat North= 50.66, Long West=204.30
  1991 Jul 11 10:35.0 Z, Lat North= 42.92, Long West=149.51