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|
|
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1 |
Dec. 1961 |
Vehicle test |
- |
- |
2 |
June 1962 |
Vehicle test |
- |
- |
3 |
Oct. 1962 |
Vehicle test |
- |
- |
4 |
Dec. 1962 |
Vehicle test |
24-hr, 30° |
45 |
5 |
Feb. 1963 |
Vehicle test |
24-hr, 30° |
113 |
6 |
Apr. 1963 |
Vehicle test |
24-hr, 30° |
113 |
7 |
June 1963 |
Vehicle test |
Escape |
Surveyor, 340 |
8 |
Aug. 1963 |
Vehicle test |
24-hr, 30° |
Advent, 299 |
9 |
Sept. 1963 |
Spacecraft |
Escape |
Mariner, 544 |
10 |
Oct. 1963 |
Vehicle test |
24-hr, 30° |
Advent, 299 |
11 |
Nov. 1963 |
Spacecraft |
Escape |
Surveyor, 340+ |
12 |
Dec. 1963 |
Vehicle test |
24-hr, 30° |
Advent, 299 |
13 |
Feb, 1964 |
Mariner |
Venus |
544 |
14 |
Feb. 1964 |
Mariner |
Venus |
544 |
15 |
Mar. 1964 |
Advent |
24-hr equatorial |
227 |
16 |
Apr. 1964 |
Surveyor |
lunar landing |
952 |
17 |
May 1964 |
Advent |
24-hr equatorial |
227 |
18 |
June 1964 |
Surveyor |
lunar landing |
952 |
19 |
July 1964 |
Advent |
24-hr equatorial |
227 |
20 |
Aug. 1964 |
Surveyor |
lunar landing |
952 |
21 |
Sept. 1964 |
Advent |
24-hr equatorial |
227 |
22 |
Oct. 1964 |
Mariner |
Mars |
635 (?) |
23 |
Nov. 1964 |
Mariner |
Mars |
635 (?) |
24 |
Dec. 1964 |
Surveyor |
Lunar orbit |
726 |
[40] In its political desire to beat the Soviet Union to a planetary shot, the United States wanted to launch probes to the planets in 1962 if at all possible and chose Venus as the most likely target, since flights to Earth's closest neighbor would require less powerful rockets. On 28 August 1961, JPL proposed a 1962 Venus mission based on an Atlas-Agena launch vehicle, using hybrid spacecraft that combined features of JPL's lunar Ranger and Mariner A. This proposed spacecraft, called Mariner R, could carry about 11 kilograms of instruments. The 1962 project would not have a significant influence on the schedule for lunar Rangers, but a reallocation of launch vehicles would be required. 33
P[robe]-37 |
Mariner R [Mariner 1] |
1962 Venus Mission |
P-38 |
Mariner R [Mariner 2] |
1962 Venus Mission |
Mariner R |
1964 Venus Mission | |
P-41 |
Mariner R |
1964 Venus Mission |
P-39 |
Mariner B |
1st quarter 1964 test flight |
P-70 |
Mariner B |
1964 Mars Mission |
P-71 |
Mariner B |
1964 Mars Mission |
P-72 |
Mariner B |
2nd quarter 1965 test flight |
P-73 |
Mariner B |
1965 Venus Mission |
P-74 |
Mariner B |
1965 Venus Mission |