| 词条 | Miranda (satellite) |
| 释义 |
| name = Miranda | image = | image_caption = | mission_type = | operator = | website = | COSPAR_ID = 1974-013A | SATCAT = 07213[1] | mission_duration = | spacecraft_bus = | manufacturer = Hawker Siddeley Dynamics | dry_mass = | launch_mass = {{convert|92|kg|lb}}[2] | dimensions = | power = 2 deployable solar arrays | launch_date = {{start-date|9 March 1974, 02:22:00|timezone=yes}} UTC | launch_rocket = Scout D-1 | launch_site = Vandenberg SLC-5 | launch_contractor = | disposal_type = | deactivated = | last_contact = | decay_date = | orbit_epoch = 8 March 1974, 08:22:00 UTC [3] | orbit_reference = Geocentric | orbit_regime = Low Earth Orbit | orbit_eccentricity = 0.01403 | orbit_periapsis = {{convert|714|km|mi}} | orbit_apoapsis = {{convert|916|km|mi}} | orbit_inclination = 97.8 degrees | orbit_period = 101.2 minutes | apsis = gee }}Miranda, also known as X-4, is a British satellite in low Earth orbit. The satellite was launched in March 1974 as an engineering test bed of technologies in orbit.[2] LaunchMiranda was due to be launched by a British Black Arrow rocket, but due to the project's cancellation the payload was instead launched on a NASA-owned rocket.[2] MissionDesigned as an engineering test bed for various technologies in orbit, Miranda carried various sensors and detectors.[2] Current StatusThe satellite is now non-active, but remains in low Earth orbit. Miranda is part of the vast amounts of space junk in orbit around the Earth and will decay into the atmosphere some time in the future. {{Clear}}See also{{Portal|Spaceflight}}
References1. ^{{cite web|title=Sat Cat |url=http://celestrak.com/satcat/ |publisher=Celestrak |accessdate=25 June 2012 }}{{dead link|date=June 2017 |bot=InternetArchiveBot |fix-attempted=yes }} {{Orbital launches in 1974}}{{UK-spacecraft-stub}}2. ^1 2 3 {{cite web|title=Miranda (X 4)|url=http://space.skyrocket.de/doc_sdat/miranda.htm|publisher=Gunter's Space Page|accessdate=25 June 2012}} 3. ^{{Cite web|url=https://nssdc.gsfc.nasa.gov/nmc/spacecraftOrbit.do?id=1974-013A|title=NASA - NSSDCA - Spacecraft - Trajectory Details|website=nssdc.gsfc.nasa.gov|access-date=2018-04-30}} 5 : Spacecraft launched in 1974|Artificial satellites orbiting Earth|Science and technology in the United Kingdom|Space programme of the United Kingdom|Satellites of the United Kingdom |
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