| 词条 | Explorer 14 |
| 释义 |
| name = Explorer 14 | image = Explorer 14 mock-up.jpg | image_caption = | mission_type = Earth science | operator = NASA | Harvard_designation = 1962 Beta Gamma 1 | SATCAT = 432 | mission_duration = 10 months | spacecraft_bus = | manufacturer = Goddard Space Flight Center | dry_mass = | launch_mass = {{convert|40|kg|lb}} | power = | launch_date = {{start-date|October 2, 1962, 22:11:30|timezone=yes}} UTC | launch_rocket = Delta A | launch_site = Cape Canaveral LC-17B | last_contact = {{end-date|August 11, 1963}} | decay_date = May 25, 1988 | orbit_epoch = 16 April 1965, 20:39:58 UTC | orbit_reference = Geocentric | orbit_regime = Highly elliptical | orbit_periapsis = {{convert|2601.0|km|mi|sp=us}} | orbit_apoapsis = {{convert|96189.0|km|mi|sp=us}} | orbit_inclination = 42.80 degrees | orbit_semimajor = {{convert|78707|km}} | orbit_eccentricity = 0.8389330 | orbit_period = 2184.60 minutes | orbit_RAAN = 212.21 degrees | orbit_arg_perigee = 141.02 degrees | orbit_mean_anomaly = 333.98 degrees | orbit_mean_motion = 0.6673 | orbit_rev_number = 122 | apsis = gee | programme = Explorers | previous_mission = Explorer 13 | next_mission = Explorer 15 }}Explorer 14 was a spin-stabilized, solar-cell-powered spacecraft instrumented to measure cosmic-ray particles, trapped particles, solar wind protons, and magnetospheric and interplanetary magnetic fields. A 16-channel PFM/PM time-division multiplexed telemeter was used. The time required to sample the 16 channels (one frame period) was 0.323 s. Half of the channels were used to convey eight-level digital information, and the others were used for analog information. During ground processing of the telemetered data, the analog information was digitized with an accuracy of 1/100 of full scale. One analog channel was subcommutated in a 16-frame-long pattern and was used to telemeter spacecraft temperatures, power system voltages, currents, etc. A digital solar aspect sensor measured the spin period and phase, digitized to 0.041 s, and the angle between the spin axis and sun direction to about 3-degree intervals.[1][2] ExperimentsThere were eight experiments done on the Explorer 14 during its mission.[3]
References{{Include-NASA}}1. ^[https://history.nasa.gov/SP-4312/ch1.htm NASA:SP-4312 Dreams, Hopes, Realities-Chapter 1:Goddard's First Forty: The Quest to Learn] 2. ^NSSDC:Explorer 14 3. ^http://nssdc.gsfc.nasa.gov/nmc/experimentSearch.do?spacecraft=Explorer%2014 External links{{Portal|Spaceflight}}
3 : Explorers program (NASA)|Spacecraft launched in 1962|Artificial satellites formerly orbiting Earth |
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