INTERBALL-1 [1995-039A]  - востовой зонд
[Трасса падения]
[Pre-launch information]
[Orbital State Vectors]
[Orbital Elements]
[673rd day]


INTERBALL-2 [1996-050C]  - авроральный зонд
[Pre-launch information]
[Information about launch]
[Orbital State Vectors]
[Orbital Elements]
[281rd day]

INTERBALL-1 Launch 

August 03, 1995

Prognoz-M2 for  the  Interball-Tail  mission  with  Magion-4 subsatellite 
was successfully launched at 02:59:10.702 DMV on Aug 03 (23:59:10.702 UTC
on Aug 02) from LC43 of  Plesetsk  cosmodrome  by  the  8K78M (Molniya-M)
launcher.  For  details  of  the nominal  launch  profile  see Pre-launch
information page. 



At  00:08:07UTC  spacecrafts   were  inserted  into transfer orbit. After 
processing  of range  measurements  received  from  Vorkuta,  Kolpashevo, 
Yeniseisk and  Ulan-Ude  tracking  stations  following orbital vector was 
obtained for the transfer orbit.

Earth Fixed Greenwich (true equator, true equinox)

Epoch Date       1995 Aug 02
Epoch Time, UTC  23:41:05.912
X, km            4916.95818
Y, km           -4969.24493
Z, km               0.00000
XDOT, km/s       1.85823710
YDOT, km/s       2.26519769
ZDOT, km/s       6.66933460
B, m*s^2/kg      0.025

Parameters of the transfer orbit were:

Nodal period, min          95.0027
Inclination, deg           62.8249
Min height, km            239.6466   *
Max height, km            826.9502   *
RAAN, deg                 314.6970
ECI 1950.0 RAAN, deg      261.0626
Argument of perigee, deg  109.7367
Eccentricity             0.0423505
Semimajor axis, km       6903.1011

* - height above Earth's reference ellipsoide

At 01:04:15UTC spacecrafts were placed into main orbit.

 

Range and two-way Doppler measurements  were  received  from  Yevpatoriya 
tracking  center  in  03:40 - 08:50 UTC  time  frame.  Measurements  were 
carried out with P-400P and RT-70 aerials.
The first state vector  was  obtained  at 09:30UTC. 
The vector  was  in  good  agreement  with another one obtained in Flight 
Control Center, Kaliningrad.

After  receiving  additional  portion  of  trajectory  measurements  from 
Yevpatoriya the  final state vector of the 1st flight 
day was calculated.

INTERBALL-1 [1995-039A]
16 октября 2000 г. 17:05:30 МДВ
КА выведен из группировки. КА коснулся поверхности Атлантического океана
в точке -10°36'23" широты и -0°10'02" долготы 

[Трасса падения]