
Launcher 
S/F 
Payload 
Mass orbited 
14 
A / Vostok 
S 
Kosmos
4 (Zenit) 
4,610 kg 


F 
Kosmos
(Zenit) 
(4,610 kg) 


S 
Kosmos
7 (Zenit) 
4,610 kg 


S 
Vostok
3 
4,722 kg 


S 
Vostok
4 
4,728 kg 


F* 
Venera
('Sputnik 19') 
1,097 kg
I,890 kg) 


F* 
Venera
('Sputnik 20) 
1,100 kg
6,500 kg) 


F* 
Venera
('Sputnik 21') 
1,100 kg
(6500 km) 


S 
Kosmos
9 (Zenit) 
4,700 kg 


S 
Kosmos
10 (Zenit) 
4,700 kg 


F* 
Mars
('Sputnik 22') 
(900 kg)
6,500 kg) 


S 
Mars
1
('Sputnik 23') 
893.5 kg 


F* 
Mars
('Sputnik 24') 
(890 kg) 


S 
Kosmos
12 (Zenit) 
4,700 kg 
8 
B / Kosmos 
S 
Kosmos
1 (DS2) 
315 kg 


S 
Kosmos
2 (1MS) 
285 kg 


S 
Kosmos
3 (2MS) 
330 kg 


S 
Kosmos
5 (2MS) 
280 kg 


S 
Kosmos
6 (DSP1) 
355 kg 


S 
Kosmos
8 (DSK) 
337 kg 


S 
Kosmos
11 (DSA1) 
315 kg 


F 
Kosmos
(1MS) 
(unknown) 
F*: Although these five launches failed, the rocket had deliverred its
payload into Earth orbit. (These launchers failed to deliver their payload
toward Venus and Mars.)
Keys: 
F = launch failure
S = launch success
brakets () = mass not counted 


Launcher 
S/F 
Payload 
Mass orbited 
29 
Thor 
F 
Discoverer 37 
(1,150 kg) 


F 
Solrad 4A / GRAB 4
Lofti2
Injun 2
Secor 1A
Surcal 1A 
(18 kg)
(98.5? kg)
(98.5? kg)
(98.5? kg)
(98.5? kg) 


S 
Ferret 1 
1,500 kg 


S 
Discoverer 38 
1,150 kg 


S 
Discoverer 39 
1,150 kg 


S 
Discoverer 40 
1,150 kg 


F 
ANNA 1A 
(160 kg) 


S 
Discoverer 41 
1,150 kg 


S 
Discoverer 42 
1,150 kg 


S 
Discoverer 43
OSCAR II 
1,150 kg
10 kg 


S 
Ferret 2 
1,500 kg 


S 
Discoverer 44 
1,150 kg 


S 
Discoverer 45 
1,150 kg 


S 
Discoverer 46 
1,150 kg 


S 
Discoverer 47 
1,150 kg 


S 
Discoverer 48 
1,150 kg 


S 
Discoverer 49 
1,150 kg 


S 
Discoverer 50 
1,150 kg 


S 
Discoverer 51
ERS 2 / TRS 1 
1,150 kg
91 kg 


S 
Alouette 1
TAVE 
146 kg
unknown 


S 
Discoverer 52 
1,150 kg 


S 
Discoverer 53 
1,150 kg 


S 
Starad 1 
1,100 kg 


S 
ANNA 1B 
161 kg 


S 
Discoverer 54 
1,150 kg 


S 
Discoverer 55 
1,150 kg 


S 
Discoverer 56 
1,150 kg 


S 
Black Sphere
Injun 3
Surcal 2
Surcal 1B
Calsphere 1 
23 kg
52 kg
3 kg
32 kg
28 kg 


S 
Discoverer 57 
1,150 kg 
16 
Atlas 
S 
Ranger 3 
327 kg 


S 
Mercury 6 
1,352 kg 


S 
Samos 6 
1,860 kg 


S 
Midas 5
Westford 
1,860 kg
[30?] kg 


S 
Ranger 4 
331 kg 


S 
Samos 7 
1,588 kg 


S 
Mercury 7 
1,349.5 kg 


S 
Samos 8 
1,860 kg 


S 
Samos 9 
1,860 kg 


F 
Mariner 1 
(203 kg) 


S 
Samos 10 
1,860 kg 


S 
Mariner 2 
204 kg 


S 
Mercury 8 
1,374 kg 


S 
Ranger 5 
242 kg 


S 
Samos 11
TRS 1 / ERS 1 
1,860 kg
(unkonwn) 


F 
Midas 6
TRS 3 / ERS 3
TRS 4 / ERS 4 
2,000 kg
101 kg
(unknown) 
9 
Delta 
S 
Tiros
4 
129 kg 


S 
OSO
1 
208 kg 


S 
Ariel
1 / UK 1 
62 kg 


S 
Tiros
5 
129 kg 


S 
Telstar
1 
171 kg 


S 
Tiros
6 
127.5 kg 


S 
Explorer
14 
40 kg 


S 
Explorer
15 
44 kg 


S 
Relay
1 
170 kg 
5 
Scout 
F 
Solrad
4B / GRAB 4B 
(91 kg) 


S 
P351 / DAPP 1 
91 kg 


S 
P352
/ DAPP 2 
91 kg 


S 
Explorer
16 
101 kg 


S 
Transit
5A1 
61 kg 
