Space Launch CalendarHome › 1971 › Thor Delta E1
Isis B on Thor Delta E1, 1971-04-01 (Success)
ResultSuccess
Date1971-04-01 02:57 UTC
VehicleThor Delta E1Thor Delta E1
Thor Delta E1 flight no.12success rate so far 100%
No. in 197126 / 126orbital attempts
Agency countryUnited StatesGSFC
| Item | Value |
|---|---|
| Launch site | Vandenberg AFB, California |
| Payload | Isis B |
| GCAT launch tag | 1971-024 |
| Mass to orbit | 0.3 t |
Neighbouring Thor Delta E1 launches
| Date | Payload | Vehicle | Site | Result |
|---|---|---|---|---|
| 1968-01-11 | Geos B | Thor Delta E1 | V | Success |
| 1968-12-05 | HEOS A1 | Thor Delta E1 | CC | Success |
| 1969-01-30 | Isis A | Thor Delta E1 | V | Success |
| 1969-02-26 | TOS G | Thor Delta E1 | CC | Success |
| 1969-06-21 | IMP G | Thor Delta E1 | V | Success |
| 1971-04-01 | Isis B | Thor Delta E1 | V | Success |
Thor Delta E1 launches per year
Counts orbital launch attempts (successes and failures); suborbital flights excluded. Countries are those of the launching agency.