Aerogravity assist

An aerogravity assist, or AGA, is a theoretical spacecraft maneuver designed to change velocity when arriving at a body with an atmosphere. A pure gravity assist uses only the gravity of a body to change the direction of the spacecraft trajectory. The change in direction is limited by the mass of the body, and how closely it can be approached. An aerogravity assist uses a closer approach to the planet, dipping into the atmosphere, so the spacecraft can also use aerodynamic lift with upside-down wings to augment gravity and further curve the trajectory. This enables the spacecraft to deflect through a larger angle, resulting in a higher delta-v (change in velocity). This in turn allows a shorter travel time, a larger payload fraction of the spacecraft, or a smaller spacecraft for a given payload.

The related techniques of aerocapture, aerobraking, and atmospheric entry also attempt to use the body's atmosphere to help reduce propulsion requirements. In an aerogravity assist, however, the goal is not to use the atmosphere to slow the spacecraft down, but instead use it to achieve a larger change in direction.

While the use of an aerogravity assist has been proposed for a variety of missions, including the capture of a spacecraft into orbit about Saturn,[1] the technique has not yet been used in practice.

See also

References

  1. ^ James Lyne and Philip Ramsey (2006), Investigation of Titan Aerogravity Assist for Capture into Orbit about Saturn, Journal of Spacecraft and Rockets, Vol. 43, No. 1, pp. 231-233. DOI:10.2514/1.9274. https://www.researchgate.net/publication/245438177
  • McRonald, Angus D.; Randolph, James E. (Jan 8–11, 1990). "Hypersonic maneuvering to provide planetary gravity assist". AIAA-1990-539, 28th Aerospace Sciences Meeting. Reno, NV.
  • Sims, JA; Longuski, JM & Patel, MR (1995). "Aerogravity-assist trajectories to the outer planets". Acta Astronautica. 35. Pergamon Press: 297–306. Bibcode:1995AcAau..35..297S. doi:10.1016/0094-5765(94)00195-R.


Stub icon

This spacecraft or satellite related article is a stub. You can help Wikipedia by expanding it.

.

Read other articles:

Stereotip gender

Stereotip gender adalah kategori luas yang merefleksikan kesan dan keyakinan tentang apa perilaku yang tepat untuk pria dan wanita.[1] Semua stereotip, entah itu berhubungan dengan gender, etnis, atau kategori lainnya, mengacu pada citra dari anggota kategori tersebut.[1] Maskulin dan feminin mempunyai kumis masuk ke dalam kategori maskulin. Banyak stereotip bersifat umum sehingga menjadi ambigu, misalnya kategori maskulin dan feminin.[1] Memberi cap stereotip sebagai ...

 

Perumpamaan Yesus

Bagian dari seri tentang Pandangan Kristen Kristus Kristologi Nama dan Gelar Riwayat Hidup Injil Keselarasan Injil Petilasan Beribunda Perawan Kelahiran Pembaptisan Karya Pelayanan Khotbah di Bukit Mukjizat Perumpamaan Penistaan Penyaliban Penguburan Kebangkitan Kenaikan Ketaatan Bersemayam di Surga Perantaraan Kedatangan Ke-2 Relikui Isa (Pandangan Islam) Almasih Injil Maryam Hawariyun Wafat Almahdi Hari Kiamat Pusara Latar Belakang Latar Belakang Perjanjian Baru Bahasa Tutur Yesus Ras Yesus...

 

Perang Tiongkok-Prancis

Perang Tiongkok-PrancisPrancis merebut Bac Ninh tahun 1884.Tanggal1884-1885LokasiTiongkok tenggara, Taiwan, Vietnam UtaraHasil Kemenangan PrancisPerubahanwilayah Kedaulatan Prancis terhadap Tonkin dan Annam diyakinkan.Pihak terlibat Prancis Dinasti Qing Pasukan Bendera Hitam AnnamKekuatan 15.000 sampai 20.000 tentara 25.000 sampai 35.000 tentara (dari provinsi Guangdong, Guangxi, Fujian, Zhejiang dan Yunnan)Korban 2.100 tewas dan terluka 10.000 tewas dan terluka Perang Tiongkok-Prancis (Chi�...

R. C. Slocum

American football player and coach (born 1944) This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the article and its talk page, especially if potentially libelous.Find sources: R. C. Slocum – news · newspapers · books · scholar · JSTOR (September 2011) (Learn how and when to ...

 

Ekam - The Oneness Temple

The neutrality of this article is disputed. Relevant discussion may be found on the talk page. Please do not remove this message until conditions to do so are met. (September 2023) (Learn how and when to remove this template message) Ekam – The Oneness TempleReligionAffiliationHinduismLeadershipWhite Lotus ConglomerateLocationLocationVaradaiah Palem, Tirupati districtStateAndhra PradeshCountryIndiaGeographic coordinates13°35'49N 79°59'49EArchitectureArchitect(s)Prabhat PraddorStyleShilpa ...

 

Prima Categoria Piemonte-Valle d'Aosta 1962-1963

Voce principale: Prima Categoria 1962-1963. Prima CategoriaPiemonte-Valle d'Aosta 1962-63 Competizione Prima Categoria Sport Calcio Edizione 4ª Organizzatore FIGC - LNDComitato Regionale Piemontese Luogo  Italia Cronologia della competizione 1961-1962 1963-1964 Manuale Il campionato di calcio di Prima Categoria 1962-1963 è stato il V livello del campionato italiano. A carattere regionale, fu il quarto campionato dilettantistico con questo nome dopo la riforma voluta da Zauli...

Vittorio De Sica

Vittorio De Sica nel film Il generale Della Rovere (1959) Vittorio De Sica, all'anagrafe Vittorio Domenico Stanislao Gaetano Sorano De Sica[1] (Sora, 7 luglio 1901 – Neuilly-sur-Seine, 13 novembre 1974), è stato un attore, regista e sceneggiatore italiano. Tra i cineasti più influenti della storia del cinema, è stato inoltre attore di teatro e documentarista. È considerato uno dei padri del neorealismo e uno dei maggiori registi e interpreti della commedia all'italiana.[2 ...

 

Giotto enfant

Cet article est une ébauche concernant la sculpture et Bordeaux. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Giotto enfantGiotto enfant par MaggesiArtiste Dominique Fortuné MaggesiDate 1840Type Art public, nuTechnique sculptureNo d’inventaire Bx E 72 S, Bx E 1046Localisation Bordeaux (France)Coordonnées 44° 50′ 16″ N, 0° 34′ 51″ Omodifier - modifier le code -...

 

Contea di Limestone (Texas)

Contea di LimestoneconteaContea di Limestone – VedutaTribunale della contea LocalizzazioneStato Stati Uniti Stato federato Texas AmministrazioneCapoluogoGroesbeck Data di istituzione1846 TerritorioCoordinatedel capoluogo31°32′24″N 96°34′48″W / 31.54°N 96.58°W31.54; -96.58 (Contea di Limestone)Coordinate: 31°32′24″N 96°34′48″W / 31.54°N 96.58°W31.54; -96.58 (Contea di Limestone) Superficie2 417 km² Abitanti23 3...

Richard Stallman

American free software activist and GNU Project founder (born 1953) Stallman redirects here. For the flutist, see Robert Stallman. For the speculative fiction author, see Robert Lester Stallman. Richard StallmanStallman in 2019BornRichard Matthew Stallman (1953-03-16) March 16, 1953 (age 71)New York City, New York, USOther namesrms (RMS)EducationHarvard University (BS)Massachusetts Institute of Technology (attended)OccupationsActivistprogrammerKnown forFree software movementGNU...

 

Kartanata Negara

R.T.A Kartanata Negara Bupati Lebak ke-2Masa jabatan1 November 1837 – 1865PendahuluPangeran Sendjaya R. DjamilPenggantiT. Prawirakoesoemah Informasi pribadiLahir1790Meninggal1879Sunting kotak info • L • B Raden Tumenggung Adipati Kartanata Negara adalah Bupati Lebak ke-2 dari tahun 1830-1865 yang terkenal akan kesewenang-wenangannya yang diabadikan dalam buku Max Havelaar karya Multatuli. Kehidupan Awal Kartanata Negara adalah demang di Jasinga, Bogor. Perlawanan ...

 

Icehouse (album)

For the Australian band, see Icehouse (band).For the song featured in the album, see Icehouse (song). 1980 studio album by FlowersIcehouse1980 Australian release (Regular Records)Studio album by FlowersReleased10 October 1980 (1980-10-10)RecordedJanuary 1980StudioStudios 301 (Sydney), Paradise (Sydney)GenreNew waveLength41:5037:24Label Regular Chrysalis Warner Music Producer Cameron Allan Iva Davies Flowers chronology Icehouse(1980) Primitive Man(1982) Singles from Iceh...

Palcho Monastery

Tibetan Buddhist monastery in Gyantse, Tibet, China Palcho MonasteryPelkor Chode MonasteryThe Palcho Monastery and KumbumReligionAffiliationTibetan BuddhismSectSakyapa, Kadampa and GelugpaFestivalsGyantse festivalLocationLocationGyantse County, Shigatse Prefecture, Tibet Autonomous RegionCountryPeople's Republic of ChinaLocation within Tibet Autonomous RegionGeographic coordinates28°57′0″N 89°38′0″E / 28.95000°N 89.63333°E / 28.95000; 89.63333ArchitectureSt...

 

Indian Wells, California

City of Indian WellsCityBatas kota terlihat dari Palm Desert, CaliforniaJulukan: I.W.Lokasi di Riverside County dan negara bagian CaliforniaCity of Indian WellsLokasi di Amerika SerikatKoordinat: 33°43′07″N 116°18′30″W / 33.71861°N 116.30833°W / 33.71861; -116.30833[1]NegaraAmerika SerikatNegara bagianCaliforniaCountyRiversideBergabung14 Juli 1967[2]Pemerintahan • MayorTy Peabody[3]Luas[4] • Total...

 

فندرانج

هذه المقالة تحتاج للمزيد من الوصلات للمقالات الأخرى للمساعدة في ترابط مقالات الموسوعة. فضلًا ساعد في تحسين هذه المقالة بإضافة وصلات إلى المقالات المتعلقة بها الموجودة في النص الحالي. (أغسطس 2016) هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة �...

New York's 15th congressional district

U.S. House district for New York NY-15 redirects here. The term may also refer to New York State Route 15. New York's 15th congressional district From 2023 to 2025 From 2025Interactive map of district boundariesRepresentativeRitchie TorresD–The BronxDistribution100% urban0% ruralPopulation (2022)727,699Median householdincome$42,090[1]Ethnicity54.7% Hispanic29.8% Black9.3% White3.2% Asian1.9% Two or more races1.1% otherCook PVID+35[2] New York's 15th congressional district fo...

 

ملف:رفيف الياسري.jpg

ملخص معلومات الملف الوصف هذه صورة لشخصية: رفيف الياسري المصدر (http://pressiraq.net/p=160394) التاريخ 17 اغسطس 2018 المنتج وكالة صدى الاعلام للانباء الإذن(إعادة الاستخدام) انظر أدناه إصدارات أخرى لا ترخيص هذه صورةٌ لشخصية متوفاة وهي محميةٌ بحقوق التأليف والنشر. في ويكيبيديا يسمح برفع واست�...

 

List of military aid to Ukraine during the Russo-Ukrainian War

Countries delivering military aid to Ukraine   Delivered heavy weapons to Ukraine   Delivered light weapons or ammunition to Ukraine   Delivered non-lethal material military aid to Ukraine   Delivered non-material military aid to Ukraine   Ukraine vteRusso-Ukrainian War (outline) Background Dissolution of the Soviet Union Russia–Ukraine relations Budapest Memorandum 2003 Tuzla Island conflict Orange Revolution 2007 Munich speech of Vladimir...

Lilpop, Rau i Loewenstein

Lilpop, Rau i LoewensteinLRL logo was used alongside the full name until 19391860 advertisement of the Lilpop factoryFoundedWarsaw, Poland (1818 (1818))Defunct1944 (1944)Fatedestroyed by the Germans during World War IIHeadquartersWarsaw, PolandNumber of employeesca. 150 in 1831450 in 18661300 in 1897ca. 2000 in 19143900 in 1938 Lilpop, Rau i Loewenstein factory in 1865 Lilpop, Rau i Loewenstein ([ˈlilpɔp rau̯ i lɛvɛnʂtai̯n], often shortened to Lilpop or LRL) wa...

 

水島裕 (政治家)

みずしま ゆたか水島 裕 生誕 (1933-09-22) 1933年9月22日 日本、東京府死没 (2008-05-07) 2008年5月7日（74歳没）出身校 東京慈恵会医科大学東京大学大学院職業 医師、政治家子供 水島昇（息子）水島広子（娘）テンプレートを表示 水島 裕（みずしま ゆたか、1933年9月22日 - 2008年5月7日）は、日本の医師、政治家。元参議院議員（1期）。東京大学大学院医学研究科博士課程修了。�...