Cargo spacecraft Cosmos 1686

CIS

Launch, orbit & landing data:

Designation	16095 / 85086A
Launch date - time	27 Sep 1985 - 08:41:42 UT
Launch site	Baikonur, LC200/39
Launch vehicle	Proton-K (#331-01)
Satellite type	TKS Merkur #4
OKB name - S/Nº	TKS-M nº 16501
Mass (kg)	20000
Total cargo mass (kg)
Initial orbit:
- Perigee / Apogee	172 x 301 km
- Inclination	51.62°
- Period	89.18 min

Docking date - time	02 Oct 1985 - 10:16 UT
Target spacecraft/port	Salyut-7 / aft unit
Docking orbit:
- Perigee / Apogee	km
- Inclination	°
- Period	min
Undocking date - time
Deorbit burn date - time
Descent date - time	07 Feb 1991 - 03:47 UT
Flight Duration (dd:hh:min)	1958d 19h
Nbr orbits

Spacecraft data:

Prime contractor
Mass at launch	around 20 tonnes
Dry Mass	kg
Dimension	length 13 m, dia(max) 4.15 m
Basic shape	Cylinder
Solar array	two panels
Stabilization
DC power

Mission details:

Carrying of supplies to, and enlargement of, the Salyut 7 station.
Orbital station "Salyut-7", with the help of Transport Logistics Spacecraft "Cosmos-1686", was transported to more high orbit (500 km).
Cosmos 1686 docked with Salyut′s forward hatch at 09:16, 02 Oct 1985.
Orbit: Initally 172 x 301 km, 89.18 min, 51.62°, then by way of a transfer orbit of 284 x 318 km, 90.49 min, 51.63° to a docking with Salyut at 336 x 353 km, 91.37 min, 51.63°.
It finished fly after uncontrolled descent in February, 1991.

Astrophilately covers:

Cosmos 1686

Launch cancel Baikonur, send registered.

Cosmos 1686

Docking cancel Baikonur, send registered.

Ref.: #1, #3(SD188), #7, #21, #210 - update: 23.12.18