Official name SL-4 R/B
Alternative name Blok-I (Soyuz-U)
Cospar ID 1979-076B
Norad ID 11497
Launch date 1979-08-21
Launch site PKMTR
Launch vehicle Soyuz-U
RCS size UNKNOWN
Decay date 1979-08-24
Shape Cyl
Mass (kg) 2378.59
Diameter (m) 2.66
Height (m) 6.7
Span (m^2) 6.7