Kosmos 1687
Kosmos 1687 ( meaning "Cosmos 1687") is a Soviet US-K missile early warning satellite which was launched in 1985 as part of the Soviet military's Oko programme. The satellite is designed to identify missile launches using optical telescopes and infrared sensors.

Kosmos 1687 was launched from Site 16/2 at Plesetsk Cosmodrome in the Russian SSR. A Molniya-M carrier rocket with a 2BL upper stage was used to perform the launch, which took place at 19:23 UTC on 30 September 1985. The launch successfully placed the satellite into a molniya orbit. It subsequently received its Kosmos designation, and the international designator 1985-088A. The United States Space Command assigned it the Satellite Catalog Number 16103.
Q7865636
US-K
MISC
Q5326904
early warning
Concept
Q26540
satellite
Concept
Q2017382
Oko
MISC
Q35273
optical telescope
Concept
Q581851
infrared sensor
Concept
Q7204630
Site 16/2
LOC
Q15778
Plesetsk Cosmodrome
LOC
Q2155073
Molniya-M
MISC
Q4927389
2BL
Concept
Q1063974
molniya orbit
Concept
Q147802
Kosmos
MISC
Q54228
international designator
ORG
Q7892209
United States Space Command
ORG
Q913832
Satellite Catalog Number
UNK
Q3398232
Kosmos 1687
MISC
Q3398232
Kosmos 1687
MISC
1687-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1687
DATE
1687-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1687
DATE
1985-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1985
DATE
1687-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1687
DATE
1985-09-30T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
30 September 1985
DATE
1985-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1985
DATE
+16^^http://www.w3.org/2001/XMLSchema#decimal
16
NUMBER
+2^^http://www.w3.org/2001/XMLSchema#decimal
2
NUMBER
+2^^http://www.w3.org/2001/XMLSchema#decimal
2
NUMBER
+19^^http://www.w3.org/2001/XMLSchema#decimal
19
NUMBER
+23^^http://www.w3.org/2001/XMLSchema#decimal
23
NUMBER
-088^^http://www.w3.org/2001/XMLSchema#decimal
-088
NUMBER
instance of
start point
space launch vehicle
UTC date of spacecraft launch
part of