Poyekhali! (Yuri Gagarin)

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Cargo spacecraft "Progress M-4"

Registration number 1990-072A / 20752
Time and date of launch (UTC) 04h.00m.41s.   August 15, 1990
Launch site Baikonur, LC 1
Launch vehicle Soyuz U2
Mass (kg) 7250
Orbital parameters:
   - inclination (degrees) 51.6
   - period (minutes) 88.5
   - perigee (km) 184
   - apogee (km) 219
Time and date of entry ignition (UTC) 11h.04m.27s.   September 20, 1990
Duration 36d.07h.
Distance (km)
Number of revolutions around Earth 568
Summary Delivery of cargo to the orbital station "Mir"  

Date Time (UTC) Spaceship's revo-
lution number
Station's revo-
lution number
Aug 15, 1990 04:00:41 1 Mir:25733 Lift-off cargo "Progress M-4" .
Aug 17, 1990 05:26:13 34 Mir:25765 Docking of "Progress M-4"   to fore (transitional) unit of orbital complex "Mir"   - "Soyuz-TM10" .
Sep 17, 1990 12:42:43 523 Mir:26254 Undocking of "Progress M-4"   from fore (transitional) unit of orbital complex "Mir"   - "Soyuz-TM10" .
Sep 20, 1990 11:04:27 568 Mir:26299 Deorbit burn of "Progress M-4" .
Sep 20, 1990 11:42:49 569 Mir:26300 End of existence of "Progress M-4" .

  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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