| 词条 | Explorer 34 |
| 释义 |
| name = Explorer 34 | image = Explorer-34 IMP-F.jpg | image_alt = 250px | image_caption = Image of the satellite Explorer 34. | mission_type = Space research | operator = NASA | COSPAR_ID = 1967-051A[1] | SATCAT = 2817 | mission_duration = | spacecraft_bus = | manufacturer = | dry_mass = | launch_mass = {{convert|163|kg|lb|abbr=on}} | power = | launch_date = {{start-date|24 May 1967, 14:05:54}} UTC[2] | launch_rocket = Delta E 486/D49 | launch_site = Vandenberg SLC-2E[3] | last_contact = | decay_date = {{end-date|May 3, 1969}}[4] | orbit_epoch = 24 May 1967[1] | orbit_reference = Geocentric | orbit_regime = Highly Elliptical | orbit_periapsis = {{convert|2,031|km|abbr=on}}[1] | orbit_apoapsis = {{convert|209,242|km|abbr=on}}[1] | orbit_inclination = 68.5°[1] | orbit_semimajor = | orbit_eccentricity = 0.92489[1] | orbit_period = 6,218.3 minutes[1] | orbit_RAAN = | orbit_arg_periapsis = | orbit_mean_anomaly = | orbit_mean_motion = | orbit_rev_number = | apsis = gee | instruments ={{infobox spaceflight/Instruments | name1 = Low-Energy Solid-State Telescope | name2 = Ion Chamber | name3 = Cosmic-Ray Proton | name4 = Low-Energy Proton and Electron Differential Energy Analyzer | name5 = Cosmic-Ray Anisotropy | name6 = Spherical Electrostatic Analyzer | name7 = Solar Proton Monitoring Experiment | name8 = Electrostatic Analyzer | name9 = Low-Energy Proton and Alpha Detector | name10 = Cosmic-Ray Energy vs Energy Loss | name11 = Triaxial Fluxgate Magnetometer }} | programme = Explorers | previous_mission = Explorer 33 | next_mission = Explorer 35 }}Explorer 34, also called IMP-4 and Interplanetary Monitoring Platform IMP-F, was an American satellite launched as part of Explorers program. Explorer 34 as launched on 24 May 1967 on Vandenberg Air Force Base, California, United States, with Delta rocket. Explorer 34 was the fourth satellite of the Interplanetary Monitoring Platform.[5] MissionExplorer 34 was placed into a high-inclination, highly eccentric earth orbit. The apogee point was located near the ecliptic plane and had an initial local time of about 1,900 hours. The spacecraft was spin-stabilized and had an initial spin period of 2.6 seconds. The spin vector was approximately perpendicular to the ecliptic plane. Like the earlier IMPs, this spacecraft was instrumented to study interplanetary magnetic fields, energetic particles, and plasma. The spacecraft optical aspect system failed on 4 March 1969. Otherwise, useful data were acquired until just before spacecraft reentry, which occurred on 3 May 1969.[1] See also
References1. ^1 2 3 4 5 6 7 {{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1967-051A|title=IMP-F|work=NSSDCA|publisher=NASA Goddard Space Flight Center|accessdate=16 June 2018}} {{PD-notice}} {{Portal|Spaceflight}}{{Explorers program}}{{Orbital launches in 1967}}{{US-spacecraft-stub}}2. ^{{cite web|url=http://www.planet4589.org/space/log/launchlog.txt|title=Launch Log|work=Jonathan's Space Page|publisher=Jonathan McDowell|accessdate=16 June 2018}} 3. ^{{cite web|url=http://www.astronautix.com/i/imp.html|title=IMP|work=Encyclopedia Astronautica|publisher=Mark Wade|accessdate=16 June 2018}} 4. ^{{cite web|url=http://www.n2yo.com/satellite/?s=2817|title=EXPLORER 34|publisher=n2yo.com|accessdate=16 June 2018}} 5. ^{{cite web|url=http://claudelafleur.qc.ca/Spacecrafts-1967.html#Explorer-34|title=Explorer 34/IMP-4|work=Spacecraft Encyclopedia|publisher=Claude Lafleur|accessdate=16 June 2018}} 3 : 1967 in spaceflight|Explorers program (NASA)|Spacecraft launched by Delta rockets |
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