Launch Details

Launched	15 September 1988
Flight ended	–
Status	Non-operational
Launch site	Tyuratam Missile and Space Center, Kazakhstan (Also known as Baikonur Cosmodrome)
Owner	Commonwealth of Independent States (former USSR)
NORAD ID	19503
COSPAR ID	1988-085C
Alternative names	GLONASS GLONASS 31
Observing

Current orbital elements

Inclination	65.402°
Eccentricity	0.00057
RA ascending node	21.494 hr
Argument perigee	227.601°
Mean anomaly	135.959°
Orbital period	675.732 min
Epoch of osculation	06 Nov 2025, 22:48

See historical orbital elements »

Derived Quantities

Min Altitude	19122.4 km
Mean Altitude	19137.0 km
Peak Altitude	19151.6 km

Launched alongside

COSMOS 1970 COSMOS 1971 SL-12 R/B(1) SL-12 R/B(2) SL-12 R/B SL-12 R/B SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB SL-12 DEB