Flights of Vostok
SC unmanned modifications
(spacecraft-satellites) |
| SC |
Spacecraft mass,
kg |
Date
of
launch
|
Spacecraft
flight
duration
(DV) |
Orbit initial parameters |
Flight special features |
Perigee
altitude,
km |
Apogee
altitude,
km |
Incli-
nation,
deg. |
Period,
min |
First
spacecraft-
satellite |
4540 |
15 May
1960 |
--
|
312
|
369
|
65
|
91.2 |
Verification of SC structure and systems with a
cargo simulating a cosmonaut mass. SC was put into an off-design
orbit (following brake engine operation) because of a failure
of one of attitude control system devices. |
Second
spacecraft-
satellite |
4600 |
19 Aug
1960 |
27
|
306
|
339
|
64.95
|
90.7 |
Verification of the structure and systems, including
LSS. Performance of biomedical experiments with dogs and other
animals under test. DV returned to Earth on August 20, 1960.
|
Third
spacecraft-
satellite |
4563 |
01 Dec
1960 |
24
|
187
|
265
|
65
|
88.6 |
Verification of the structure and systems. Performance
of biomedical experiments with dogs and other animals under
test. It burnt in the upper atmosphere on December 02, 1960,
because of off-design descent. |
Fourth
spacecraft-
satellite |
4700 |
09 Mar
1961 |
1.92
|
183.5
|
248.8
|
64.93
|
88.4 |
Verification of the structure and systems. Performance
of biomedical experiments with dogs and other biological objects
under test. Return of SC with animals to the Earth. Ejection
and parachute landing of a dummy simulating an equipped cosmonaut.
|
Fifth
spacecraft-
satellite |
4695 |
25 Mar
1961 |
1.92
|
178
|
247
|
64.9
|
88.42 |
Verification of structures and systems designed
to support human vital functions during his flight in space
return to the Earth. Performance of biomedical experiments
with dogs and other biological objects under test. Return
of SC with animals to the Earth. |
