Vela 5A (also known Vela 9 and OPS 6909) was an American reconnaissance satellite to detect explosions and nuclear tests on land and in space. It was released together with Vela 5B, OV5 5, OV5 6 and OV5 9.
Instruments 2 optical bhangmeters observing the planet 12 external X-ray detectors 18 internal neutron and gamma-ray detectors
See also Vela (satellite)
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