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Cargo spacecraft "Progress-20"


BRIEFLY ABOUT CARGO
Registration number 1984-038A / 14932
Time and date of launch (UTC) 08h.12m.    April 15, 1984
Launch site Baikonur, LC 31?
Launch vehicle Soyuz U2
Mass (kg) 7020
Orbital parameters:
   - inclination (degrees) 51.6
   - period (minutes) 89.0
   - perigee (km) 186
   - apogee (km) 260
Time and date of entry ignition (UTC) 08h.56m.    May 07, 1984
Duration 22d.00h.
Distance (km)
Number of revolutions around Earth 346
Summary Delivery of cargo to the orbital station "Salyut-7"  



TIMELINE
Date Time (UTC) Spaceship's revo-
lution number
Station's revo-
lution number
Explanation
Apr 15, 1984 08:12:53 1 Salyut-7:11502 Lift-off cargo "Progress-20" .
Apr 17, 1984 09:22 34 Salyut-7:11535 Docking of "Progress-20"   to aft (aggregative) unit of orbital complex "Salyut-7"   - "Soyuz-T11" .
Apr 23, 1984 04:31
Salyut-7:11627 Beginning of the 1st [of 6] PE-3 EVA ( Kizim,   Solovyov ); station "Salyut-7" .
Apr 23, 1984 08:46
Salyut-7:11630 Ending of EVA ( Kizim,   Solovyov ), duration 4:15; station "Salyut-7" .
Apr 26, 1984 02:40
Salyut-7:11673 Beginning of the 2nd [of 6] PE-3 EVA ( Kizim,   Solovyov ); station "Salyut-7" .
Apr 26, 1984 07:40
Salyut-7:11677 Ending of EVA ( Kizim,   Solovyov ), duration 5:00; station "Salyut-7" .
Apr 29, 1984 01:35
Salyut-7:11721 Beginning of the 3rd [of 6] PE-3 EVA ( Kizim,   Solovyov ); station "Salyut-7" .
Apr 29, 1984 04:20
Salyut-7:11722 Ending of EVA ( Kizim,   Solovyov ), duration 2:45; station "Salyut-7" .
May 03, 1984 23:15
Salyut-7:11799 Beginning of the 4th [of 6] PE-3 EVA ( Kizim,   Solovyov ); station "Salyut-7" .
May 04, 1984 02:00
Salyut-7:11800 Ending of EVA ( Kizim,   Solovyov ), duration 2:45; station "Salyut-7" .
May 06, 1984 17:46 342 Salyut-7:11843 Undocking of "Progress-20"   from aft (aggregative) unit of orbital complex "Salyut-7"   - "Soyuz-T11" .
May 07, 1984 08:56 346 Salyut-7:11848 Deorbit burn of "Progress-20" .
May 07, 1984 09:45? 347 Salyut-7:11848 End of existence of "Progress-20" .

Sources:
  Mission Control Center (TsUP) from 2007
  Alexander Zheleznyakov
  Spaceflight now
  journal "Novosti Kosmonavtiki" ("News of Cosmonautics") from 1993 till our time
  journal "Kosmonavtika, astronomiya" ("Cosmonautics, astronomy") 1983-1991 years
  book "Evolution of vehicle-creating and cosmonautics in the USSR" by Valentin P. Glushko, Moscow, 1987
  Jonathan's Space Report
  and many other people and editions
  


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