| 词条 | AMSAT-OSCAR 6 |
| 释义 |
| name = AMSAT-OSCAR 6 | image = | image_caption = | mission_type = Amateur radio | operator = AMSAT{{\\}}NASA | website = | COSPAR_ID = 1972-082B | SATCAT = 6236 | mission_duration = 4.5 years | spacecraft_bus = | manufacturer = | dry_mass = | launch_mass = {{Convert|18.2|kg|lb}} | dimensions = {{convert|16|x|30|x|44|cm|abbr=on}} | launch_date = 15 October 1972, 17:19 UTC | launch_rocket = Delta 300 575/D-91 | launch_site = Vandenberg SLC-2W | launch_contractor = | last_contact = {{end-date|21 June 1977}} | decay_date = | orbit_epoch = 15 November 1972[1] | orbit_reference = Geocentric | orbit_regime = Low Earth | orbit_periapsis = {{Convert|1448|km|mi}} | orbit_apoapsis = {{Convert|1457|km|mi}} | orbit_eccentricity = 0.00058 | orbit_inclination = 101.7 degrees | orbit_period = 114.93 minutes | apsis = gee | programme = OSCAR | previous_mission = OSCAR 5 | next_mission = OSCAR 7 }} AO-6 (a.k.a. AMSAT-OSCAR 6) was the first Phase 2 amateur radio satellite (P2-A) launched into Low Earth Orbit. It was also the first satellite constructed by the new AMSAT North America (AMSAT-NA) organization. The satellite was launched October 15, 1972, by a Delta 300 launcher from Vandenberg Air Force Base, Lompoc, California. AO-6 was launched piggyback with ITOS-D (NOAA 2). Weight 18.2 kg. Orbit 1450 x 1459 km. Inclination 101.7 degrees. Box shaped 430 x 300 x 150 mm. Quarter-wave monopole antennas (144 and 435 MHz) and half-wave dipole antenna (29 MHz). It remained operational for 4.5 years until a battery failure on June 21, 1977.[2][3] Equipped with solar panels powering NiCd batteries, AO-6 provided 24 V at 3.5 W power to three transponders. It carried a Mode A transponder (100 kHz wide at 1 W) and provided store-and-forward morse and teletype messages (named Codestore) for later transmission. Subsystems were built in the United States, Australia, and Germany.[4] AO-6 had a 1.3 watt transmitter into a half-wave dipole antenna. AO-6's receiver input sensitivity was approximately -100dbm (2 uv per meter) and had an AGC that provided up to 26 dB of gain reduction optimized for SSB modulation. The transceiver team consisted of Karl Meinzer DJ4ZC, Wallace Mercer W4RUD, Dick Daniels WA4DGU and Jan King W3GEY. FirstsAO-6 demonstrated several uses of new technologies and operations.[4]
See also{{Portal|Spaceflight}}
References1. ^{{cite web|url=http://planet4589.org/space/log/satcat.txt|title=Satellite Catalog|first=Jonathan|last=McDowell|work=Jonathan's Space Page|accessdate=16 June 2013}} {{Include-NASA}}{{Orbital launches in 1972}}{{OSCAR satellites}}2. ^{{cite web |url=http://space.skyrocket.de/doc_sdat/amsat-p2a.htm |title=AMSAT P2A |publisher=Gunter's Space Page |date=31 December 1999 |accessdate=12 February 2013 }} 3. ^{{cite web |url=http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1972-082B |title=Oscar 6 |publisher=NASA National Space Science Data Center |date=30 June 1977 |accessdate=11 February 2013}} 4. ^1 {{cite web|url=http://www.amsat.org/amsat-new/satellites/satInfo.php?satID=29&retURL=satellites/history.php |title=AMSAT-OSCAR 6 Satellite Summary |date=31 May 2003 |accessdate=11 February 2013 |publisher=AMSAT |deadurl=yes |archiveurl=https://web.archive.org/web/20100618020300/http://www.amsat.org/amsat-new/satellites/satInfo.php?satID=29&retURL=satellites%2Fhistory.php |archivedate=June 18, 2010 }} 5. ^{{cite web|url=http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=1451918|title=Intersatellite communication using the AMSAT-OSCAR 6 and AMSAT-OSCAR 7 radio amateur satellites|last=Klein |first=Perry |date=October 1975|accessdate=16 December 2009|publisher=IEEE}}
3 : Artificial satellites orbiting Earth|Amateur radio satellites|Spacecraft launched in 1972 |
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