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ASTERIA - 版本历史
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<p><b>新页面</b></p><div>{{Infobox spaceflight<br />
| name = ASTERIA <br />
| names_list = ExoplanetSat (2011)<br />
<br />
<!--image of the spacecraft/mission--><br />
| image = ASTERIA CubeSat space telescope.jpg<br />
| image_caption = ASTERIA during testing. It is a 6U CubeSat space telescope for the detection of exoplanets<br />
<br />
<!--Basic details--><br />
| mission_type = 技術演示<br />
| operator = [[NASA]]<br />
| COSPAR_ID = 1998-067NH<br />
| SATCAT = 43020<br />
| website = {{url|https://www.jpl.nasa.gov/cubesat/missions/asteria.php}}<!--Homepage of the craft/mission, OFFICIAL PAGES ONLY--><br />
| mission_duration = Nominal: 90 days<br> Extension: up to 1 year <br> Achieved: {{time interval|20 November 2017|5 December 2019|show=ymd|sep=,}}<br />
| orbits_completed = <!--number of times the spacecraft orbited the Earth - see below for spacecraft beyond Earth orbit--><br />
<br />
<!--Spacecraft properties--><br />
| spacecraft = ASTERIA<br />
| spacecraft_bus = 6U [[立方衛星]]<br />
| manufacturer = [[JPL]]、[[MIT]]<br />
| launch_mass = {{convert|12|kg|lb|abbr=on}}<br />
| dimensions = {{convert|10|×|20|×|30|cm|ft|abbr=on}}<br />
| power = <!--in watts--><br />
<br />
<!--Launch details--><br />
| launch_date = {{start date|2017|08|14}}, 16:31 UTC<br/>deployed: 20 November 2017<br />
| launch_rocket = [[獵鷹9號運載火箭]] <br />
| launch_site = [[甘迺迪太空中心]] <br />
| launch_contractor = [[SpaceX]]<br />
<br />
<!--end of mission--><br />
| disposal_type = <!--Whether the spacecraft was deorbited, decommissioned, placed in a graveyard orbit, etc--><br />
| declared = <!--when the operator/agency officially ended the mission--><br />
| deactivated = <!--when craft was decommissioned--><br />
| destroyed = <!--when craft was destroyed (if other than by re-entry)--><br />
| last_contact = 2019年12月5日<br />
| recovery_by = <!--recovered by--><br />
| decay_date = 2020年4月24日<!--when craft re-entered the atmosphere, not needed if it landed--><br />
<br />
<!--orbit parameters--><br />
| orbit_reference = [[地心軌道]]<br />
| orbit_regime = [[低軌道]]<br />
| orbit_apoapsis = {{convert|406.7|km|mi|abbr=off}}<br />
| orbit_periapsis = {{convert|402.7|km|mi|abbr=off}}<br />
| orbit_period = 92.5分<br />
| orbit_inclination = 51.6°<br />
| apsis = gee<br />
<br />
<!--Telescope parameters--><br />
| instrument_type = <!--converts telescope fields to suit a camera or other similar instrument--><br />
| telescope_name = <!--name, if different to the satellite--><br />
| telescope_type = <!--type of telescope, mirror arrangement, etc--> <br />
| telescope_diameter = <!--diameter of telescope--><br />
| telescope_focal_length= <br />
| telescope_area = <!--wrong units or not the area: 83 mm --><br />
| telescope_wavelength = [[可見光]]: 390–700 nm <br />
| telescope_resolution = <br />
| instruments = <!--a list of instruments on the satellite--><br />
<br />
<!--transponder parameters--><br />
| trans_band = <!--Transponder frequency bands--><br />
| trans_frequency = <!--specific frequencies--><br />
| trans_bandwidth = <!--bandwidth--><br />
| trans_capacity = <!--capacity of the transponders--><br />
| trans_coverage = <!--area covered--><br />
| trans_TWTA = <!--TWTA output power--><br />
| trans_EIRP = <!--equivalent isotropic power--><br />
| trans_HPBW = <!--half-power beam width--><br />
<br />
<!--mission insignia or patch--><br />
| insignia = <!--omit the "file" prefix--><br />
| insignia_caption = <!--image caption--><br />
}}<br />
'''ASTERIA'''（Arcsecond Space Telescope Enabling Research In Astrophysics）是一項微型[[太空望遠鏡]]技術演示和機會性科學任務，旨在使用[[立方衛星]]進行[[天文物理]]測量。<br />
<br />
ASTERIA由[[麻省理工學院]]和[[美國太空總署]][[噴射推進實驗室]]合作設計的。ASTERIA 是第一顆由噴射推進實驗室建造並在太空中成功運行的立方衛星。ASTERIA最初設想是一個培訓早期職業科學家和工程師的項目，其技術目標是實現角秒級的視線指向誤差和高度穩定的焦平面溫度控制。這些技術對於精確光度測定（即隨時間測量恆星亮度）非常重要。精密光度測定法為研究[[恆星]]活動、[[系外行星]]凌日和其他天文物理現象提供了一種方法。<br />
<br />
2017年8月14日，ASTERIA發射升空，並於2017年11月20日從[[國際太空站]]部署到近地軌道<ref name='JPL Asteria'>[https://www.jpl.nasa.gov/cubesat/missions/asteria.php Arcsecond Space Telescope Enabling Research in Astrophysics (ASTERIA)]. Jon Nelson, Jet Propulsion Laboratory, NASA.</ref>。主要任務持續90天，但衛星透過三次延長任務繼續運行745天，直到2019年12月5日最後一次成功通訊<ref name='Asteria EOL'>{{cite web|url=https://www.jpl.nasa.gov/news/news.php?feature=7568|title=Tiny Satellite for Studying Distant Planets Goes Quiet|publisher=JPL}}</ref>。ASTERIA於2020年4月24日墜入大氣層。ASTERIA首席研究員是[[加拿大]]裔美國[[天文學家]]和[[行星科學家]][[莎拉·西格爾]]<ref>Seager, Sara (Jan/Feb. 2021). "[https://wp.technologyreview.com/wp-content/uploads/2020/12/MIT-NEWS-2021-01-1.pdf My satellite would fit in a small suitcase. But it could help us find other worlds]" (excerpt from book ''The Smallest Lights in the Universe'' (2020).) ''MIT News'', pp. 12-17. Retrieved 20 May 2023.</ref>。<br />
<br />
== 參考資料 ==<br />
<br />
{{Reflist|1}}<br />
<br />
{{Space telescopes}}<br />
{{Exoplanet search projects}}<br />
[[Category:卫星]]<br />
<br />
[[Category:空间望远镜]]</div>
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