Vanguard 1

GPTKB entity

Statements (83)
Predicate Object
gptkbp:instance_of gptkb:satellite
gptkbp:circular_orbit not a circular orbit
gptkbp:collection temperature data
orbital parameters
radiation measurements
collected data on atmospheric density
collected data on solar radiation
collected data on temperature variations
gptkbp:contact gptkb:1964
gptkbp:contribution data on cosmic rays
data on Earth's atmosphere
helped in understanding satellite orbits
provided data on Earth's shape
data on solar radiation
gptkbp:country gptkb:United_States
gptkbp:country_of_origin gptkb:United_States
gptkbp:cultural_impact symbol of the space race
gptkbp:cultural_significance first satellite to be powered by solar energy
gptkbp:current_orbit geocentric
gptkbp:data_transmission radio signals
gptkbp:decayed 1970s
gptkbp:design gptkb:NASA
spherical
gptkbp:diameter 16.5 cm
gptkbp:dimensions 16.5 cm diameter
gptkbp:discovery Earth's shape and size
gptkbp:eccentricity 0.9999
gptkbp:historical_significance first successful US satellite
https://www.w3.org/2000/01/rdf-schema#label Vanguard 1
gptkbp:impact Earth's atmosphere
influenced satellite technology
gptkbp:influenced future satellite designs
gptkbp:inspiration inspired the design of future satellites
gptkbp:is_aplace_for 3,969 km
3,960 km
gptkbp:launch_context part of the International Geophysical Year
gptkbp:launch_date March 17, 1958
gptkbp:launch_event successful
gptkbp:launch_site gptkb:Cape_Canaveral
gptkbp:launch_vehicle gptkb:Vanguard_rocket
gptkb:Juno_I
gptkbp:launched gptkb:United_States
gptkbp:legacy paved the way for future satellites
pioneering satellite technology
gptkbp:manufacturer gptkb:NASA
gptkbp:mass 1.47 kg
gptkbp:mission gptkb:1964
gptkbp:mission_duration approximately 6 years
gptkbp:mission_type gptkb:Earth_observation
scientific
gptkbp:notable_achievement gptkb:first_solar-powered_satellite
longest-lasting artificial satellite at the time
gptkbp:operational_use 6 years
gptkbp:orbital_altitude elliptical
gptkbp:orbital_decay_rate slow
gptkbp:orbital_inclination 34.3 degrees
34.2 degrees
gptkbp:orbital_period yes
due to atmospheric drag
132.9 minutes
134.5 minutes
due to gravitational perturbations
about 132.9 minutes
gptkbp:orbital_tracking still tracked by amateur radio operators
gptkbp:perigee 650 km
654 km
gptkbp:public_interest sparked interest in space exploration
gptkbp:reign over 58,000
2 hours 14 minutes
gptkbp:scientific_instruments gptkb:radio_station
gptkb:magnetometer
solar cells
gptkbp:service first object to be powered by solar energy in orbit
gptkbp:significance gptkb:first_solar-powered_satellite
gptkbp:speed not applicable
not yet reentered
gptkbp:status inactive
remains in orbit
gptkbp:successor gptkb:Explorer_1
gptkbp:track tracked by ground stations
gptkbp:weight 1.47 kg
gptkbp:bfsParent gptkb:Wallops_Flight_Facility
gptkbp:bfsLayer 4