Official name SL-4 R/B
Alternative name Blok-I (Soyuz-U)
Cospar ID 1989-095B
Norad ID 20351
Launch date 1989-11-30
Launch site PKMTR
Launch vehicle Soyuz-U
RCS size LARGE
Decay date 1989-12-03
Shape Cyl
Mass (kg) 2378.59
Diameter (m) 2.66
Height (m) 6.7
Span (m^2) 6.7