| 词条 | Pegasus 3 |
| 释义 |
| name = Pegasus 3 | image = Pegasus satellite.jpg | image_caption = A Pegasus satellite in orbit | mission_type = | operator = NASA | website = | COSPAR_ID = 1965-060A | SATCAT = | mission_duration = 1 year (design) 3 years (achieved) | spacecraft_type = Pegasus | manufacturer = Fairchild Hiller | dry_mass = | launch_mass = {{convert|10323|kg}} | payload_mass = {{convert|1450|kg}} | power = | launch_date = {{start-date|30 July 1965, 13:00:00|timezone=yes}} UTC | launch_rocket = Saturn I SA-10 | launch_site = Cape Canaveral LC-37B | launch_contractor = | disposal_type = Decommissioned | deactivated = {{end-date|29 August 1968}} | decay_date = 4 August 1969 | orbit_epoch = 3 September 1965 | orbit_reference = Geocentric | orbit_regime = Low Earth | orbit_periapsis = {{convert|516|km|mi|sp=us}} | orbit_apoapsis = {{convert|536|km|mi|sp=us}} | orbit_inclination = 28.8 degrees | orbit_period = 95.15 minutes | apsis = gee }}{{Distinguish|text = Pegasus (spyware) version 3}} Pegasus 3 or III, also known as Pegasus C before launch, was an American satellite which was launched in 1965 to study micrometeoroid impacts in Low Earth orbit. It was the last of three Pegasus satellites to be launched, the previous two having been launched earlier the same year. It was manufactured by Fairchild Hiller, and operated by NASA. SpacecraftPegasus 3 was a Pegasus spacecraft, consisting of {{convert|1450|kg}} of instruments, attached to the S-IV upper stage of the carrier rocket which had placed it into orbit.[1] It had a total mass of {{convert|10323|kg}},[2] and was equipped with two sets of micrometeoroid detection panels, and a radio for tracking and returning data.[1] The panels were {{convert|29|m}} long, and equipped with 116 individual detectors.[3] LaunchPegasus 3 was launched atop a Saturn I rocket, serial number SA-10,[4] flying from Launch Complex 37B at the Cape Kennedy Air Force Station. The launch occurred at 13:00:00 UTC on 30 July 1965.[5] Following launch, Pegasus 3 was given the COSPAR designation 1965-060A, whilst NORAD assigned it the Satellite Catalog Number 01467.[6] Pegasus 3 was a secondary payload on the carrier rocket, which was carrying a boilerplate Apollo spacecraft, Apollo 105 or BP-9A,[5] as part of a series of configuration tests for the Apollo program. The Apollo boilerplate acted as a payload fairing for the Pegasus spacecraft, which was stored inside what would have been the Service Module of a functional spacecraft. Upon reaching orbit, the boilerplate Command and Service modules were jettisoned.[1] OperationsPegasus 3 was operated in a low Earth orbit. On 3 September 1965 it was catalogued as being in an orbit with a perigee of {{convert|516|km|nmi|sp=us}} and an apogee of {{convert|536|km|nmi|sp=us}}, inclined at 51.6 degrees to the equator and with a period of 95.15 minutes.[7] Once in orbit, the panels were deployed to detect micrometeoroid impacts. Experiment results were returned to Earth by radio.[1] The spacecraft operated until 29 August 1968, and subsequently remained in orbit until it decayed and reentered the atmosphere on 4 August 1969.[7] It had originally only been expected to operate for 720 days. See also{{Portal|Spaceflight}}
References1. ^1 2 3 {{cite web|url=http://space.skyrocket.de/doc_sdat/pegasus.htm |title=Pegasus 1, 2, 3|first=Gunter|last=Krebs|work=Gunter's Space Page|accessdate=20 December 2010}} {{Orbital launches in 1965}}2. ^{{cite web|url=http://www.spacesecurity.org/files/WorldCivilSats2006.xls|title=World Civil Satellites 1957-2006|publisher=Space Security Index|work=|accessdate=20 December 2010|deadurl=yes|archiveurl=https://web.archive.org/web/20110718022840/http://www.spacesecurity.org/files/WorldCivilSats2006.xls|archivedate=18 July 2011|df=}} 3. ^{{cite web|url=http://www.astronautix.com/craft/pegasus.htm|title=Pegasus|first=Mark|last=Wade|work=Encyclopedia Astronautica|accessdate=20 December 2010}} 4. ^{{cite web|url=http://planet4589.org/space/lvdb/list2.html|title=Launch List|publisher=Jonathan's Space Page|work=Launch Vehicle Database|first=Jonathan|last=McDowell|accessdate=20 December 2010}} 5. ^1 {{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|publisher=Jonathan's Space Page|first=Jonathan|last=McDowell|accessdate=20 December 2010}} 6. ^{{cite web|url=http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1965-060A|title=Pegasus 3|publisher=US National Space Science Data Center|work=NSSDC Master Catalog|accessdate=20 December 2010}} 7. ^1 {{cite web|url=http://www.planet4589.org/space/log/satcat.txt|title=Satellite Catalog|last=McDowell|first=Jonathan|publisher=Jonathan's Space Page|accessdate=20 December 2010}} 2 : Spacecraft launched in 1965|Spacecraft launched by Saturn rockets |
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