Vanguard
| Status | Retired |
|---|---|
| Country | United States |
| Number of orbital launches | 11 |
| First launch | 1957-12-06 |
| Last launch | 1959-09-18 |
Launches by year:
Launches:
| Launch date | Launch site | Rocket / Variant | Payload | Notes | Status |
|---|---|---|---|---|---|
| 1959-09-18 | Cape Canaveral | Vanguard X-248 | Vanguard 20in Magnetometer | failure | |
| 1959-06-22 | Cape Canaveral | Vanguard | Vanguard 20in Radiation balance #1 | failure | |
Stage 2 propulsion malfunction. | |||||
| 1959-04-14 | Cape Canaveral | Vanguard | Vanguard 13in Magnetometer #1 / Vanguard Balloon | failure | |
Stage 2 damaged at seperation. | |||||
| 1959-02-17 | Cape Canaveral | Vanguard | Vanguard 2 (20in Cloud cover #2) | success | |
| 1958-09-26 | Cape Canaveral | Vanguard | Vanguard 20in Cloud cover #1 | failure | |
Insufficient 2nd stage thrust - unknown cause. | |||||
| 1958-06-26 | Cape Canaveral | Vanguard | Vanguard 20in Lyman-Alpha #2 | failure | |
Premature second stage cutoff. Unknown cause. | |||||
| 1958-05-28 | Cape Canaveral | Vanguard | Vanguard 20in Lyman-Alpha #1 | failure | |
Improper third stage trajectory - unknown cause. | |||||
| 1958-04-29 | Cape Canaveral | Vanguard | Vanguard 20in X-ray #1 | failure | |
Third Stage failed to ignite. | |||||
| 1958-03-17 | Cape Canaveral | Vanguard | Vanguard 1 (6.5in #3) | success | |
| 1958-02-05 | Cape Canaveral | Vanguard | Vanguard 6.5in #2 | failure | |
Control system malfunction - control lost after 57 sec. | |||||
| 1957-12-06 | Cape Canaveral | Vanguard | Vanguard 6.5in #1 | failure | |
First orbital launch attempt made by the US. Vehicle lost thrust and exploded after 2 seconds. | |||||
Variants:
(This section is under construction)Vanguard Base variant
| First launch | 1957-12-06 |
|---|---|
| Mass | 10.05 t |
| Height | 23 m |
Payload capacity:
| LEO | 9 kg to 200 km |
|---|
Vanguard X-248
| First launch | 1959-09-18 |
|---|