| 词条 | Explorer 13 |
| 释义 |
| name = Explorer 13 | image = Explorer-13.jpg | image_caption = Explorer 13 (S-55A) | mission_type = | operator = NASA | website = 1961-022A[1] | Harvard_designation = 1961 χ1 | SATCAT = 180 | mission_duration = 3 days | spacecraft_bus = | manufacturer = GSFC | dry_mass = | launch_mass = {{convert|86|kg|lb|abbr=on}} | power = | launch_date = {{start-date|August 25, 1961, 19:26}} UTC[2] | launch_rocket = Scout X-1 | launch_site = Wallops LA-3 | last_contact = {{end-date|August 28, 1961}} | decay_date = | orbit_epoch = August 25, 1961[1] | orbit_reference = Geocentric | orbit_regime = Low Earth | orbit_periapsis = {{convert|125|km|abbr=on}}[1] | orbit_apoapsis = {{convert|1,164|km|abbr=on}}[1] | orbit_inclination = 37.7°[1] | orbit_semimajor = | orbit_eccentricity = 0.07392[1] | orbit_period = 97.5 minutes[1] | orbit_RAAN = | orbit_arg_periapsis = | orbit_mean_anomaly = | orbit_mean_motion = | orbit_rev_number = | apsis = gee | instruments ={{infobox spaceflight/Instruments | name1 = Cadmium Sulfide Cell Micrometeorite Detector | name2 = Copper Wire Micrometeroite Detector | name3 = Pressurized Cell Micrometeorite Detector | name4 = Impact Detection | name5 = Grid Detectors }} | programme = Explorers | previous_mission = Explorer 12 | next_mission = Explorer 14 }} Explorer 13 (also called S-55A) was an American satellite launched as part of Explorers program. Was launched on August 25, 1961 from Wallops Flight Facility, Virginia, U.S.. MissionExplorer 13 was injected into a geocentric orbit of moderate eccentricity using a Scout launch vehicle. The objectives of the flight were to test vehicle performance and guidance and to investigate the nature and effects of micrometeoroids on the spacecraft systems. The scientific instrumentation consisted of cadmium sulfide-cell, wire-grid, piezoelectric, pressurized-cell, and foil-type micrometeoroid detectors. The spacecraft was a {{convert|1.93|x|0.61|m|ft|abbr=on}} cylinder. The orbit was lower than planned, and the spacecraft reentered the atmosphere on August 28, 1961, after only slightly more than 2 days in orbit. No penetrations were recorded by this satellite during experiment operations. This aided in determination of useful flux limits for subsequent experiment design. References1. ^1 2 3 4 5 6 {{cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1961-022A|title=S 55A|work=NSSDC Master Catalog|publisher=NASA Goddard Space Flight Center}} {{PD-notice}} {{Explorers program}}{{Orbital launches in 1961}}{{satellite-stub}}2. ^{{cite web|url=http://www.planet4589.org/space/log/launchlog.txt|title=Jonathan's Space Page}} 3 : 1961 in spaceflight|Explorers program (NASA)|Spacecraft launched in 1961 |
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