RADUGA Launch Re-Entry
Bill Bard (wtba@eci-esyst.com)
21 Jun 1996 07:28:21 -0400
This is a re-post from the amsat list.
Bill Bard
wtba@eci-esyst.com
RADUGA Launch Re-Entry
----------------------
by James Miller G3RUH
1996 Jun 20
A couple of months ago, Richard Limebear drew our attention to the =
keplerian
elements of part "D" of a RADUGA launch which had gone sour, and remarked =
on
their similarity to Oscar-13's elements:
Satellite OSCAR-13 96010D
Epoch Date 1996 Jun 15 1996 Jun 16
Inclination 57 48 deg
R.A.A.N. 111 250 deg
Eccentricity 0.7426 0.7334 -
Arg perigee 42 29 deg
Mean motion 2.098212 2.262156 rev/d
Decay 7.1E-6 8.0E-4 rev/d/d
Revolution 6129 264 -
Semi major axis 25773 24500 km
I have been collecting the elements since then, and have plugged them in =
to
my program that numerically integrates the equations of motion for AO-13.
After adjusting the mass/area ratio (which is about 2x larger than =
AO-13's)
so that predicted and Norad keplerian elements agree over 2 months, I =
find
that re-entry for 96010D is predicted for 1996 Jul 17 [Wed], which is =
four
weeks hence.
This event is a sort of rehearsal for AO-13's demise, and should be
interesting, if only to practice your chicken-little technique.
--
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D
James R Miller E-mail: g3ruh@amsat.org
Cambridge England Stardate: 1996 Jun 20 [Thu] 1525 =
utc
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D