Mariner 5

Mariner 5
Mission typeVenus flyby
OperatorNASA / JPL
COSPAR ID1967-060A Edit this at Wikidata
SATCAT no.2845
Mission duration1 year, 4 months and 22 days
Spacecraft properties
ManufacturerJet Propulsion Laboratory
Launch mass244.9 kilograms (540 lb)[1]
Power170 W
Start of mission
Launch dateJune 14, 1967, 06:01:00 (1967-06-14UTC06:01Z) UTC
RocketAtlas-SLV3 Agena-D
Launch siteCape Canaveral LC-12
End of mission
Last contactDecember 4, 1967
Loss of contact
October 14, 1968
Briefly regained[2][3]
Flyby of Venus
Closest approachOctober 19, 1967
Distance3,990 kilometers (2,480 miles)
Instruments
Ultraviolet Photometer
Two-Frequency Beacon Receiver
S-Band Occultation
Helium-Vector Magnetometer
Solar-Plasma Probe
Trapped Radiation Detector
Launch of Mariner 5

Mariner 5 (Mariner V or Mariner Venus 1967) was a spacecraft of the Mariner program that carried a complement of experiments to probe Venus' atmosphere by radio occultation, measure the hydrogen Lyman-alpha (hard ultraviolet) spectrum, and sample the solar particles and magnetic field fluctuations above the planet. Its goals were to measure interplanetary and Venusian magnetic fields, charged particles, plasma, radio refractivity and UV emissions of the Venusian atmosphere.

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