Table 1. Space missions, Pioneer Program [1].
| Mission | Formulation Start (Fiscal Year) | Launch Date (Fiscal Year) | Fiscal Years of Development (inclusive) | Launch Date | Launch Vehicle | LV Cost (2021) | Type |
| Pioneer 10 | 1969 | 1972 | 4 | 3/3/1972 | Atlas Centaur | $112.60 | Jupiter Flyby |
| Pioneer 11 | 1969 | 1973 | 5 | 4/5/1973 | Atlas Centaur | $112.60 | Jupiter/Saturn Flyby |
| Pioneer Venus 1 | 1975 | 1978 | 4 | 5/20/1978 | Atlas Centaur | $89.50 | Venus Orbiter |
| Pioneer Venus 2 | 1975 | 1978 | 4 | 8/8/1978 | Atlas Centaur | $89.50 | Venus Probes |
[1]: Planetary Exploration Budget Dataset - The Planetary Society (Accessed 04/17/2022)