| 词条 | PharmaSat |
| 释义 |
| name = PharmaSat | image = 330070main PreSat Assembly 428-321.jpg | image_caption = PharmaSat undergoing preflight testing | mission_type = {{nowrap|Biological research}} | operator = NASA | website = {{url|http://www.nasa.gov/mission_pages/smallsats/pharmasat.html|PharmaSat}} | COSPAR_ID = 2009-028B | SATCAT = 35002 | mission_duration = > 21 Days 96 hr Main Experiment. | spacecraft_bus = | manufacturer = NASA | dry_mass = | launch_mass = {{convert|5.5|kg|lb}} | power = | launch_date = {{start-date|May 19, 2009, 23:55|timezone=yes}} UTC[1][2] | launch_rocket = Minotaur I | launch_site = MARS LP-0B | launch_contractor = Orbital Sciences | last_contact = | decay_date = August 14, 2012 | orbit_epoch = May 22, 2009[3] | orbit_reference = Geocentric | orbit_regime = Low Earth | orbit_periapsis = {{convert|428|km|mi}} | orbit_apoapsis = {{convert|466|km|mi}} | orbit_inclination = 40.4 degrees | orbit_period = 93.52 minutes | apsis = gee }}PharmaSat was a nanosatellite developed by NASA Ames Research Center which measured the influence of microgravity upon yeast resistance to an antifungal agent. As a follow on to the GeneSat-1 mission, the Ames Small Spacecraft Division conducted the PharmaSat mission in collaboration with industry and local universities.[4] PharmaSat was the first nanosatellite to implement biological science guided by its Principal Investigator. The mission was designed to aid the development of medicines or techniques to enable long-term manned space travel and habitation. BackgroundThe PharmaSat mission builds upon technology demonstrated by GeneSat-1, which used a CubeSat to study microfluidics and optics in the space environment. It was designed to provide life-support, growth, monitoring, and analysis capabilities for microorganisms. Based, like GeneSat-1, around a three-unit CubeSat platform; PharmaSat was designed to accomplish five functions in an autonomous free-flying platform:[5]
OperationsPharmaSat was launched at 23:55 UTC on May 19, 2009 aboard a Minotaur I rocket from Pad 0B at the Mid-Atlantic Regional Spaceport on Wallops Island. PharmaSat was flown as a secondary payload co-manifested with the US Air Force Research Laboratory's TacSat-3 spacecraft. PharmaSat was successfully inserted into a low Earth orbit at approximately {{convert|285|mi|km|disp=flip}} above the Earth, following which it was activated and began transmitting radio signals to two ground control stations. The primary ground station at SRI International in Menlo Park, California, transmitted mission data from the satellite to its operators, while a second station was located at Santa Clara University, whose Robotic Systems Laboratory was responsible for operating the satellite. After establishing contact the satellite was commanded to initiate its experiment, which lasted 96 hours. Once the experiment began, PharmaSat relayed data in near real-time for up to six months.[6] PharmaSat also carried an amateur radio beacon, with a frequency of 437.465 megahertz, which broadcast spacecraft telemetry. Amateur radio operators were asked to collect data from the spacecraft and provide it to the operators via the Mission Dashboard website.[7] PharmaSat decayed from orbit and reentered the atmosphere on 14 August 2012. See also{{Portal|Spaceflight}}
References1. ^{{cite web|url=http://www.spacetoday.net/Summary/4574|title=spacetoday.net: Minotaur launch delayed again|accessdate=2009-05-11}} {{Orbital launches in 2009}}{{Use American English|date=January 2014}}2. ^{{cite web|url=http://planet4589.org/space/log/launchlog.txt|title=Launch Log|first=Jonathan|last=McDowell|work=Jonathan's Space Page|accessdate=3 January 2014}} 3. ^{{cite web|url=http://planet4589.org/space/log/satcat.txt|title=Satellite Catalog|first=Jonathan|last=McDowell|work=Jonathan's Space Page|accessdate=3 January 2014}} 4. ^http://microsatellitefreeflyer.arc.nasa.gov/docs/PharmaSat_1.pdf {{webarchive |url=https://web.archive.org/web/20090411050212/http://microsatellitefreeflyer.arc.nasa.gov/docs/PharmaSat_1.pdf |date=April 11, 2009 }} 5. ^[https://web.archive.org/web/20100716133216/http://microsatellitefreeflyer.arc.nasa.gov/pharmasat.html PharmaSat] 6. ^http://rsl.engr.scu.edu/ 7. ^{{cite web |url=http://pharmasat.engr.scu.edu/Dashboard/index.html |title=Archived copy |accessdate=2009-05-03 |deadurl=yes |archiveurl=https://web.archive.org/web/20090503091926/http://pharmasat.engr.scu.edu/Dashboard/index.html |archivedate=2009-05-03 |df= }} 4 : Spacecraft launched in 2009|CubeSats|Spacecraft launched by Minotaur rockets|Spacecraft which reentered in 2012 |
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