Official name SL-4 R/B
Alternative name Blok-I (Soyuz-2-1A)
Cospar ID 2021-119B
Norad ID 49923
Launch date 2021-12-08
Launch site TTMTR
Launch vehicle Soyuz-2-1a
RCS size LARGE
Decay date 2021-12-11
Shape Cyl
Mass (kg) 2350
Diameter (m) 2.66
Height (m) 8.99
Span (m^2) 8.99