San Marco 1
| Mission type | Ionospheric Earth science Astrophysics | 
|---|---|
| Operator | CNR | 
| COSPAR ID | 1964-084A | 
| SATCAT no. | 00957 | 
| Mission duration | ~272 days | 
| Spacecraft properties | |
| Launch mass | 115.2 kilograms (254 lb) | 
| Start of mission | |
| Launch date | 15 December 1964, 20:24:00 UTC | 
| Rocket | Scout X-4 | 
| Launch site | Wallops LA-3A | 
| End of mission | |
| Decay date | 13 September 1965 | 
| Orbital parameters | |
| Reference system | Geocentric | 
| Regime | Low Earth | 
| Eccentricity | 0.0469 | 
| Perigee altitude | 198.0 kilometres (123.0 mi) | 
| Apogee altitude | 846.0 kilometres (525.7 mi) | 
| Inclination | 37.80 degrees | 
| Period | 94.9 minutes | 
| Epoch | 15 December 1964 20:24:00 UTC | 
San Marco 1, also known as San Marco A, was the first Italian satellite. Built in-house by the Italian Space Research Commission (Italian: Commissione per le Ricerche Spaziali, CRS) on behalf of the National Research Council, it was the first of five as part of the Italian-US San Marco programme.
The name of the spacecraft series comes from the San Marco platform, a Jackup barge used as an offshore launch pad for the main phase of the project. San Marco (English: Saint Mark) is the patron saint of Venice, often depicted as aiding Venetian sailors.