San Marco 1

San Marco 1
Mission typeIonospheric
Earth science
Astrophysics
OperatorCNR
COSPAR ID1964-084A
SATCAT no.00957
Mission duration~272 days
Spacecraft properties
Launch mass115.2 kilograms (254 lb)
Start of mission
Launch date15 December 1964, 20:24:00 (1964-12-15UTC20:24Z) UTC
RocketScout X-4
Launch siteWallops LA-3A
End of mission
Decay date13 September 1965
Orbital parameters
Reference systemGeocentric
RegimeLow Earth
Eccentricity0.0469
Perigee altitude198.0 kilometres (123.0 mi)
Apogee altitude846.0 kilometres (525.7 mi)
Inclination37.80 degrees
Period94.9 minutes
Epoch15 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.