Interball-2 launch
Agapov Vladimir (avm@kiam1.rssi.ru)
Fri, 23 Aug 1996 19:31:39 +0400
Hello,
My name is Vladimir Agapov and I'm working in the Ballistic Center of
Keldysh Institute of Applied Mathematics of the Russian Academy of Sciences,
Moscow.
I'm new SeeSat subscriber despite of I permanently have searched SeeSat
archives before.
I prepared some information concerning Interball-2 spacecraft scheduled for
launch on August 29. This information can be obtained from KIAM WWW-page
(www.kiam1.rssi.ru). Current information about Interball-1 state vectors
is also there.
Hope, it could be useful.
Vladimir.
____________________________________________________________________________
This information was used at preparing for launch of the spacecraft. It
partially extracted from the documents on the Interball-2 (Auroral Probe)
mission of NPO Lavochkin.
Launch 29.08.96 08:22:01.11 DMV (29.08.96 05:22:01.11 UTC)
30.08.96 08:16:29.46 DMV (30.08.96 05:16:29.46 UTC)
Launch window - 10 min
Launch site - Plesetsk, LC43
Launcher - Molniya-M (8K78M with 2BL-SM2 upper stage (4th stage))
Payload - Prognoz-M2 (SO-M2 N2513) (Russia)
+ Magion-5 (S2-A) (Czech Republic)
+ MU-SAT (Argentina)
Nominal mass of the upper stage (without mass of the shroud) -
6200 (+25...-35) kg
including
empty mass of the 2BL - 902 +-10 kg
mass of the BOZ block - 327.9 kg (BOZ - 'Blok obespecheniya
zapuska' on Russian or
'launching provision block')
mass of Prognoz-M2 + Magion-5 - 1370 +-30 kg
mass of MU-SAT - 31 +-2 kg
Mass of the shroud - 797.25 kg
Main engine of the Block 2BL - 11D33
Nominal launch profile:
Lift-off - T
Separation of the 1st stage (4 strap-ons) - T+120.18 s
Separation of the shroud - T+166.62 s
The 2nd stage's engines cut off - T+289.90 s
Separation of the 2nd stage - T+292.15 s
The 3rd stage's engine cut off - T+535.35 s
Separation of the upper stage with payload - T+538.65 s
Separation of MU-SAT satellite - T+540.650 +-1 s
Command on ignition of powder thrustors of
the BOZ block - T+3931.833 s
Command on ignition of the 11D33 engine - T+3951.833 +-0.022 s
75% level of the 11D33 engine's thrust,
separation of the BOZ block - T+3972.833 s
Command on the 2BL block's engine cut off - T+4129.240 s
Command on separation of the payload - T+4137.240 s
Separation of the payload from the 4th stage - T+4137.270 s
Point of separation : latitude - 32.989 S
longitude - 273.200 E
altitude - 1265.278 km
Pre-launch orbital vectors for transfer and main orbits that were
calculated in the KIAM Ballistic Center, presented below.
Pre-launch vectors at the time of separation of the 3rd stage
(T+538.65 s, transfer orbit)
Earth Fixed Greenwich Earth Centered Inertial (ECI)
EFG ECI J2000 ECI 1975.0
Date 1996/08/29 1996/08/29 1996/08/29
Time, UTC 05:30:59.76 05:30:59.760 05:30:59.760
x, km 1107.291 -2314.132 -2286.009
y, km 3283.450 2580.495 2593.352
z, km 5620.800 5620.176 5625.764
vx, km/s -5.314827 -7.436599 -7.453686
vy, km/s 5.321730 -2.173317 -2.131697
vz, km/s -2.087076 -2.089525 -2.071437
TLE derived from vectors above with VEC2TLE program :
1 96000U 96000A 96242.22985833 .00001782 00000-0 10000-4 0 10
2 96000 62.8136 8.2997 0668474 109.7078 357.4757 14.56420809 13
Pre-launch vectors at the time of separation Prognoz-M2 with Magion-5
from the 4th stage (T+4137.270 s, main orbit)
EFG ECI J2000 ECI 1975.0
Date 1996/08/29 1996/08/29 1996/08/29
Time,UTC 06:30:58.380 06:30:58.380 06:30:58.380
x, km 357.665 6283.779 6266.569
y, km -6395.942 -1251.495 -1286.574
z, km -4158.104 -4156.165 -4171.411 R = 7637.134 km
vx, km/s 4.599805 6.397037 6.429380 V = 8943.340 m/s
vy, km/s -5.327094 3.580887 3.545036
vz, km/s 5.120278 5.122457 5.106877
TLE derived from vectors above with VEC2TLE program :
1 96000U 96000A 96242.27150903 .00000001 00000-0 10000-4 0 10
2 96000 62.8073 8.1752 5621393 287.9609 8.3267 4.16008672 17
Elements of an osculating orbit at T+4137.270 s (main orbit)
Semimajor axis a 16335.822 km
Eccentricity e 0.56170
Argument of perigee w 287.977 deg
Inclination i 62.809 deg
RAAN 8.3 deg (J2000)
True anomaly 34.281 deg
Nodical period 5.77 h
Apogee height 781.82 km (above Earth's ellipsoid)
Perigee heihgt 19133.60 km