Soyuz ASTP in Orbit Credit: NASA |
AKA: 11F615A12;7K-TM/F/;Soyuz M. Status: Operational 1974. First Launch: 1974-04-03. Last Launch: 1975-07-15. Number: 4 . Thrust: 4.09 kN (919 lbf). Gross mass: 6,680 kg (14,720 lb). Unfuelled mass: 6,180 kg (13,620 lb). Specific impulse: 282 s. Height: 7.48 m (24.54 ft). Span: 8.37 m (27.46 ft).
The spacecraft included some systems developed for the cancelled Soyuz S, including a new launch escape tower. Other changes included new lightweight solar panels to increase endurance; an androgynous universal docking mechanism in place of standard Soyuz male mechanism; unique radio aerials for common communications; optical docking targets for manual docking with Apollo; and modifications to the environmental control system to lower the cabin pressure to 0.68 atmospheres prior to docking with Apollo..
Crew Size: 2. Orbital Storage: 7.00 days. Habitable Volume: 9.00 m3. Spacecraft delta v: 215 m/s (705 ft/sec). Electric System: 8.00 kWh. Electric System: 0.50 average kW.
Soyuz ASTP Unusual 1972 illustration of Soyuz ASTP without solar panels. Credit: NASA |
Soyuz ASTP Credit: © Mark Wade |
Soyuz ASTP SA Cutaway of Soyuz re-entry capsule. |
Soyuz ASTP PO Cutaway of Soyuz equipment / propulsion module. |
Soyuz ASTP in Orbit Soyuz ASTP in Orbit 3 Credit: NASA |
Soyuz ASTP BO Cutaway of Soyuz orbital module. |
Soyuz ASTP Credit: © Mark Wade |
Soyuz ASTP Credit: © Mark Wade |
Soyuz ASTP in Orbit Soyuz ASTP in Orbit 4 Credit: NASA |
Soyuz ASTP Cutaway |
APAS-75 docking unit APAS-75 docking unit as used in ASTP project. Credit: Andy Salmon |
Panel Soyuz 7K-OK Control panel of the initial earth orbit version of Soyuz. Credit: © Mark Wade |
Soyuz 16 Credit: Manufacturer Image |
Soyuz OM Detailed cutaway of standard Soyuz orbital module, as flown on ASTP mission. Credit: © Mark Wade |
Communist Party Meeting at the cosmonaut centre. Keldysh calls later. Six specialists are to be sent to the United States to discuss design of a common USA/USSR docking system. Kamanin yet again goes through the correct answers and prepared speeches to be given to the press by Nikolayev and Sevastyanov on their visit to West Germany.
TsKBEM was given a completely new structure as a result of the findings of the expert commissions on the disasters for the previous year, Mishin remained as the Chief Designer for the organisation, but each programme now had its own chief designer:
Unmanned Soyuz test flight. Recovered April 13, 1974 5:05 GMT. Soyuz ASTP Test.
Maneuver Summary:
190km X 309km orbit to 190km X 266km orbit. Delta V: 12 m/s
190km X 266km orbit to 240km X 300km orbit. Delta V: 23 m/s
240km X 300km orbit to 258km X 274km orbit. Delta V: 12 m/s
Total Delta V: 47 m/s.
Officially: Investigation of the upper atmosphere and outer space.
ASTP precursor. Recovered August 18, 1974 5:02 GMT. Soyuz ASTP test.
Maneuver Summary:
195km X 305km orbit to 195km X 221km orbit. Delta V: 24 m/s
195km X 221km orbit to 223km X 223km orbit. Delta V: 8 m/s
231km X 231km orbit to 231km X 231km orbit. Delta V: 1 m/s
223km X 223km orbit to 231km X 231km orbit. Delta V: 4 m/s
231km X 231km orbit to 227km X 237km orbit. Delta V: 2 m/s
Total Delta V: 39 m/s.
Officially: Investigation of the upper atmosphere and outer space.
ASTP Manned Test Flight. Check-out of the Soyuz space craft's on-board systems which had been modernized to meet the requirements of the 1975 joint flight in accordance with the programme of the Soviet-United States experiment; conduct of scientific and technical investigations.
Soyuz 19 initial orbital parameters were 220.8 by 185.07 kilometres, at the desired inclination of 51.80°, while the period of the first orbit was 88.6 minutes. On 17 July the two spacecraft docked. The crew members rotated between the two spacecraft and conducted various mainly ceremonial activities. Leonov was on the American side for 5 hours, 43 minutes, while Kubasov spent 4:57 in the command and docking modules.
After being docked for nearly 44 hours, Apollo and Soyuz parted for the first time and were station-keeping at a range of 50 meters. The Apollo crew placed its craft between Soyuz and the sun so that the diameter of the service module formed a disk which blocked out the sun. After this experiment Apollo moved towards Soyuz for the second docking.
Three hours later Apollo and Soyuz undocked for the second and final time. The spacecraft moved to a 40 m station-keeping distance so that an ultraviolet absorption experiment could be performed. With all the joint flight activities completed, the ships went on their separate ways.