Спутник технологический. DART. [Редактировать]

Данный космический аппарат создан для испытаний в полете аппаратуры и программного обеспечения, необходимых для автономного сближения на орбите и маневрирования в окрестностях цели – инспекция МКА MUBLCOM. МКА создан на базе четвертой (дополни-тельной) ступени РН Pegasus XL, известной как «Гидразиновая вспомогательная двигательная система» HAPS (Hydrazine Auxiliary Propulsion System). Ступень считается интегральной частью аппарата и располагается сзади. Передняя часть именуется платформой прибора AVGS. Она включает в себя систему реактивного управления, аккумуляторы и связную аппаратуру и несет собственно аппаратуру AVGS. В бортовую систему навигации и управления входят компьютер фирмы SBS Technolo-gies, модульный блок авионики собственного изготовления, инерциальный измерительный блок (Honeywell) и многоканальный приемник спутниковой навигационной системы GPS с четырьмя антеннами (Surrey Satellite Technol-ogies Ltd). Многочисленные функции осуществляет бортовое программное обеспечение ARPO (Autonomous Rendezvous and Proximity Operations). «Сердцем» ARPO является программа-менеджер миссии, которая работает на «среднем» уровне автономности. Менеджер способен обработать многие нештатные ситуации, пропустить отдельные действия и поменять их порядок, чтобы выполнить задание в целом. Программа просчитывает многие тысячи вариантов работы и выбирает тот, который позволяет достичь поставленных целей с учетом всех ограничений. В ARPO реализованы различные типы маневров в окрестностях аппарата-цели с учетом законов небесной механики, а также алгоритмы «силового» подхода по любой линии. В функции программного обеспечения ARPO входит также построение «запретных сфер» вокруг КА-цели и выполнение маневра увода в том случае, если угрожает столкновение. МКА солнечных батарей не имеет и питается только от литий-ионных аккумуляторов (шесть по 50 А час, два по 9 А час) компании SAFT. Ступень HAPS имеет азотный бак на 5,77 кг и шесть двигателей подсистемы ориентации ACS – газовых сопел с тягой 5,67 или 11,34 кг – которые обеспечивают трехосную ориентацию МКА во время орбитального полета и управление по каналу вращения при работе ЖРД. Управление по тангажу и рысканью осуществляется и путем несинхронного включения гидразиновых двигателей.
МКА оснащен двумя видеокамерами компании Ecliptic Enterprises:

  • Прибор AVGS (Advanced Video Guidance Sensor – перспективный датчик видеонавигации) изготовлен подразделением Advanced Optical Systems и предназначен для работы в замкнутом контуре управления аппаратом.
  • Корпус платформы AVGS изготовила компания Vermont Composites. Платформа имеет собственную двигательную установку - сис-тему реактивного управления RCS. В нее входит бак рабочего тела (азот) емкостью 31,75 кг (в т. ч. 30% резерва) «и 16 газовых сопел компании MООG тягой 0,37 кг и удельным импульсом 60 с.

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
1Demonstration of Autonomous Rendezvous TechnologyНайтиНайти
228642НайтиНайти

Дополнительная классификация

#Наименования
1Тип орбиты - НОО
2Страна оператор(владелец) - США
3Страна производитель - США
4Тип оператора(владельца) - военные

Новостная лента[Найти информацию в новостях] [Найти информацию в документах]

#Новостная лента.
12005-04-15. Отказ навигационной системыТэги: DART

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг360

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град96.5
2Апогей, км585.1
3Перигей, км367.8
4Период, минут94.0
5Длинный диаметр эллипса, км6847

Пусковые характеристики

#ХарактеристикаЗначение
1Код NSSDC2005-014A

Экономические характеристики

#ХарактеристикаДата измеренияЗначение
1Стоимость , млн. долл.110

Информация об удачном запуске

#ХарактеристикаЗначение
1Дата пуска2005-04-15 at 18:25:00 UTC
2Полезная нагрузка 1xDART
3Ракета-носитель 1xПегас XL

Найдено 1000 документов по запросу «DART». [Перейти к поиску]


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... of the Glands of the Dart Apparatus DANIEL J.D. CHUNG Division of... Arbor, MI 48109 ABSTRACT The dart apparatus, used during courtship in... the mucous glands of the dart apparatus of the land snail... test the hypothesis that the dart is used to achieve inflow... land snails possess a dart apparatus, comprising a dart held in a dart sac and associated... (pulmonate snails and sea slugs), a dart apparatus may have evolved independently... long been assumed that the dart is a “stimulatory” device in courtship... proven. The hypothesis that the dart is used to stimulate the... the 0 1986 ALAN R. LISS, INC. dart might cause increased tonus of... mucous glands associated with the dart apparatus (= dart glands or multifid glands... glands include: lubrication for the dart and genitals, formation of the... shell, and formation of the dart (Meisenheimer, ’12; Moquin-Tandon, 1855... either egg shell or the dart. In recent observations on mating... receipt of a dart. Lind (‘76) observed that snails receiving a dart were more... those not receiving a dart, and he suggested that dart shooting might test..., the elaborate structure of the dart apparatus suggests that it serves.... Tompa (‘80, ’84) suggested that dart receipt might stimulate egg maturation... in a snail; dart shooting might thereby help the dart shooter to fertilize... of a Helminthoglypta caused by receiving a dart from a non-conspecific when they... by Dorello (’25), that the dart is used for inoculation of... extracts and unboiled extracts of dart sac, penis, and mantle collar... extracts. Mucous glands, penes, dart sacs (plus dart), and pieces of mantle... extract and boiled extracts of dart sac, penis, mantle collar, and... injected as described above. The “dart sac” tissue used included only... lining of the dart sac and the calcareous dart. Doses of the... weights of penis, dart sac (inner lining + dart), and brain were obtained... 131 FUNCTION OF HELIX ASPERSA DART APPARATUS TABLE 1. Results of second... snails Other tissues, boiled Penis Dart sac Mantle collar Brain Non... snails by way of the dart, 15 snails were injected with... approximately one ground dart in a 0.5 ml solution. On average, a dart weighed 2 mg... expected to enter through the dart 132 D.J.D. CHUNG wound, all injections... substance. FUNCTION OF HELIX ASPERSA DART APPARATUS Fig. 1. Four adults of... solution. 133 lobe (R2). The dart it received from its partner... Gland Mucous Gland Mantle Collar Dart Sac Penis B M C A g> 3-m 0 .- 0 EB 131 B W .= 2- 0 ; i c 0 Q) Q) no... Snails injected with unboiled penis, dart snail with a n eversion of R2, and with the dart it received from its partner... snails usually show eversions as dart sac extract caused tetany and... was //// 135 FUNCTION O F HELIX ASPERSA DART APPARATUS boiled (Fig. 2), and this... test showed that boiled penis, dart sac, mantle collar, and brain... to the unboiled penis and dart sac extracts (Fig. I),the boiled penis and dart sac extracts did cause some... of extract of darts (plus dart sac tissue) dissected out of... body of a snail through the dart wound and facilitates prolonged eversion... secretions at the time of dart shooting. The significantly smaller response... bioassay of darts dissected from dart sacs compared to that of... major FUNCTION OF HELIX ASPERSA DART APPARATUS active substance eliciting the... Lepri ('801, who believed that dart receipt in H. pomatia and H. aspersa... courtship by a snail's receipt of a dart. The exact reasons for the... in any snail that received a dart and then resumed courtship. The... body walls greatly, except during dart shooting, but genital eversion is... significance and evolution of the dart apparatus will be discussed elsewhere... in species recognition. If the dart apparatus were used for species... this study indicate that the dart may be used for traumatic... the partner. Euhadra also has a dart apparatus, though its function has... initial eversion, while the Helix dart apparatus may, in effect, increase... of FUNCTION OF HELIX ASPERSA DART APPARATUS Helix aspersa Austr. J. Biol... ultrastructure and mineralogy of the dart from Philomycus carolinianus with a brief...



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...37 0 0 52016C582E DART // 2016 2016 DODGE DART MOST AWARD-WINNING AND TECHNOLOGICALLY... 1 Unlike its compact segment competitors, Dart offers more technology features than... as Dodge Challenger and Charger, Dart has authentic performance DNA coursing...’s loaded with plenty of tech. Dart delivers features not typically standard... page 19. //// DART GT SHOWN IN REDLINE PEARL. PAGE // 2 Dart GT shown... // 3 S E G M E N T- L E A D I N G 1 INTERIOR:ROOMINESS WORLD-CLASS DESIGN.  Dart isn’t just engineered to perform... trunk pass-through adds to Dart’s already versatile space. Even the... or tablet. The bottom line — Dart has serious space for you... all your handheld electronics. PAGE // 4 //// DART GT INTERIOR SHOWN WITH BLACK... AND RUBY RED ACCENT STITCHING. Dart Limited interior with Nappa leather... and Light Tungsten accent stitching. Dart GT interior shown. PAGE // 5 AS... MultiAir technology. SMOOTH-SHIFTING TRANSMISSION ///// Dart’s six-speed transmission lineup kicks.../StickTM on the 1.4-litre Turbo. Dart GT’s standard sport-tuned suspension... as well as a smooth ride. //// DART GT SHOWN IN BRIGHT WHITE... Two little letters following the Dart moniker stand for something big... style, big on value. The Dart GT ///// LIMITED If you’re... with more luxury, check out Dart Limited. Bright grille and door... Enter ’n GoTM lets you unlock Dart without even taking the keys.... PAGE // 8 ///// Left: Dart Limited shown in Bright White. Right: Dart GT shown... UCONNECT® TOUCHSCREEN GROUP DART SE DART SXT DART AERO DART GT DART LIMITED POWERTRAIN POWERTRAIN..., Jeep, Ram, Dodge, Challenger, Charger, Dart, Mopar, Park-Sense, ParkView, Sentry... mpg) highway on 2016 Dodge Dart Aero model with 1.4L MultiAir... of ownership. The 2014 Dodge Dart tied for leadership with another... // 18 PAGE // 19 D O D G E D O D G E . C A / / / / / 8 0 0-3 6 1-37 0 0 52016C582E DART // 2016



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... S.A. SOLVAY 1006208 B.V.B.A. FIRMA GREGOIRE 1006495 DART INDUSTRIES INC. 1006825 S.A. FBFC INTERNATIONAL... AND CEMENT CO. LTD 1001669 DART INDUSTRIES INC. 1002254 YORK INTERNATIONAL... MARELLI AUTRONICA S.P.A. 1001888 ID. 1002494 DART INDUSTRIES INC. 1002821 ALLIANCE EUROPE.... 1005576 MITSUBISHI CHEMICAL CORPORATION 1005911 DART INDUSTRIES INC. 1005931 ENICHEM S.P.A. 1006154... RHEE FRANCISCUS WILHELMUS ANTONIUS 1008061 DART INDUSTRIES INC. 1008087 NUOVOPIGNONE INDUSTRIE... INDUSTRIES LTD. 1005324 ID. 1005553 DART INDUSTRIES INC. 1005765 CALLENS LUDO.... 1001115 ERIDANIA ZUCCHERIFICI NAZIONALI S.P.A. 1001355 DART INDUSTRIES INC. 1001757 ALCATEL BELL... SALIVA DIAGNOSTIC SYSTEMS INC. 1005408 DART INDUSTRIES INC. 1005885 S.A. ADF ANALYSE... INTERNATIONAL 10619773 BROUARD JEAN 10684007 DART INDUSTRIES INC. 10623491 PLASTIC OMNIUM... ROLAND D 1011355 SCHORPION ERIC 1006495 DART INDUSTRIES INC. 00885235 SCHUCO HEINZ... 1011519 1005924 00900929 D D'AUBIOUL ROLAND DART INDUSTRIES INC. DE BLOCK-BURY...-BENZ A.G. HAUSHALTSHILFENUBERLASSUNGS 00898945 ID. G.M.B.H. 1005911 DART INDUSTRIES INC. 1008061 ID. 1002494... 1009273 1011117 1011874 1010893 1012442 D D.M.S. DART INDUSTRIES INC. DE GEYTER PIERRE... 1012038 CUNO INC. 1012038 1007209 D DART INDUSTRIES INC. ID. 1005090 DE... INSTITUTE 10708712 FREMONT YVES 10684007 DART INDUSTRIES INC. 10399341 FRESENIUS PHARMA... R. 09 CHEMISCHE FABRIK STOCKHAUSEN G.M.B.H. 02 DART ROBERT C. 09 CHINOIN GYOGYSZER ES.... 11 DANFOSS FLUID POWER A/S 01 DART CONTAINER CORP. 09 DARWIN DISCOVERY...



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... time………………………………………………………………. 7 DART Quick Facts……………………………………………………………… 8 DART spacecraft ………………………………………………………………. 9 The target vehicle ……………………………………………………………..11 DART key technologies... phase……………………………………………………… 30 Future applications of DART………………………………………………… 32 3 General Fact Sheet & Media Services Information ________________________________________________________________ FACT SHEET DART DEMONSTRATOR TO TEST FUTURE AUTONOMOUS... Demonstration of Autonomous Rendezvous Technology (DART) is a flight demonstrator that provides... piloted by astronauts, the unmanned DART spacecraft will have only computers..., or other autonomous rendezvous operations. DART is designed to demonstrate technologies... vehicle will then boost the DART spacecraft into approximately a 472-by... Proximity Operations (ARPO) software on DART will test additional algorithms by... an integral part of the DART spacecraft, sharing avionics and propulsion... six nitrogen-fueled thrusters. The DART spacecraft also uses 16 nitrogen... thrusters for proximity operations. The DART spacecraft is about 6 feet long... to design and develop the DART flight demonstrator, including orbital flight.... Assembly and integration of the DART spacecraft was completed summer 2004... $110 million. Flight demonstrators, like DART, have a critical role in demonstrating..., affordable access to space. The DART project is the first demonstration.... For more information on the DART project, including electronic images and...://www.msfc.nasa.gov/news/dart/ 5 Media Services Information NASA Television... Demonstration for Autonomous Rendezvous Technology (DART) from Vandenberg AFB, California, is... EDT to 1:28 EDT. 7 DART Quick Facts DART Spacecraft Length Diameter Weight... DART project, including launch is $110 million. 8 DART Spacecraft Diagrams of the DART... control during proximity operations. The DART nitrogen tank will be capable... AVGS Bus Figure 1. DART Vehicle Configuration Figure 2. DART assembly and component diagram... 5. MUBLCOM Orbit Ground Track 13 DART Key Technologies Advanced Video Guidance... sensor. AVGS development under the DART project has matured electrical and... dock. AVGS objectives during the DART mission are: • • • • • • • Demonstrate AVGS capabilities..., reliable and cost effective. The DART vehicle navigation system fuses together... to the space application of DART, a high performance, multi-channel, stand... adjust this altitude difference. The DART guidance uses both orbital altitude... accomplish this. In the DART mission, DART is inserted into an orbit... closer together. Guidance designed for DART can perform station-keep maneuvers... vehicle and system requirements. The DART "mission manager" is at a level... contingency, faults and anomalies. The DART "mission manager" has the ability... can think for itself. The DART Project will demonstrate the algorithms... a target currently in orbit. The DART satellite will test technologies in... and collision avoidance maneuvers The DART vehicle will be launched aboard..., the Pegasus will deliver the DART vehicle to a circular parking orbit... 6. Pegasus XL Launch Operations for DART Mission After being placed in... the 16-thruster DART Reaction Control System (RCS). The DART RCS provides... operations necessary to support the DART mission objectives is shown in... waiting in phasing orbit 2, the DART vehicle will perform a CW transfer... Below Figure 8. DART Proximity Operations From this point, DART will initiate two... will be conducted from the DART Mission Operations Center (MOC) located... (TDRSS). Ground Station Visibility The DART vehicle will employ an S-band... Drop (Launch -0) Pegasus Ops Pegasus/DART Handover (00:11:20 m.e.t.) On... A V m.e.t. (hr:min:sec) -1 0 S M 1 A M 2 S A M 3 A S 4 Figure 10. DART Mission Timeline Summary M 5 S 6 A A M S 7 M 8 S 9 A M 10 A S 11...) M 8 A S 9 M 10 14 A S 11 M 12 S 13 DART On-Orbit Events 1 - Phasing Orbit... Phase Launch Operations Overview The DART vehicle will be launched aboard... and HAPS systems. TABLE 3. INITIAL DART ORBIT CHARACTERISTICS (PHASING ORBIT 1) Mean... handoff between the Pegasus and DART mission will occur following stage... Pegasus HAPS burn to deliver DART to a nearly-circular, 500 kilometers... can vary significantly. TABLE 4. APPROXIMATE DART ORBIT CHARACTERISTICS FOR PHASING ORBIT... trajectory chosen to accomplish the DART mission objectives is shown in... the completion of rendezvous, the DART vehicle will nominally be located... orbit. Following a station-keeping period, DART will perform another CW transfer... available on the DART vehicle. First –V Bar Approach DART will move in... be obtained for AVGS validation. DART will next initiate a transfer from... m. Immediately after losing AVGS lock, DART will move back towards MUBLCOM... completing the first –V Bar approach, DART will perform a CW transfer and... Following the first +R Bar approach, DART will execute a CW transfer from... completing the mission objectives, the DART vehicle must be removed from... burn. 31 Future Applications of DART DART will provide critical technologies that... programs. The technology gained with DART will also benefit the Experimental...



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... Рассмотрены материалы инструментальных (глубоководных станций DART и береговых телеметрических регистраторов Службы предупреждения..., STB показал отличную корреляцию с NOAA DART буем, расположенным рядом. Последующий анализ... STB полностью соответствует оперативным показателям DART и отработал безупречно. В результате успеха этого... производства цунами систем с использованием технологии DART. С тех пор, корпорация SAIC поставила...: легкий в установке (ETD) DART цунами буй. Первый ETD DART был развернут в Коралловом..., устанавливаемый под собственной тяжестью, ETD DART буй приспособлен для развертывания, например... records obtained by deep-water DART stations and coastal telemetric gauges... showed excellent correlation with a NOAA DART buoy located close by. Subsequent... revealed that the STB matched DART operational capabilities and performed flawlessly... to build tsunami systems using DART technology. Since then, SAIC has... (ETD) DART tsunami assessment buoy system. The first ETD DART was deployed.... The smaller, gravity launched ETD DART is designed to be deployed...



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... of the waveforms at offshore DART buoy #21418. (3) The rupture centroids... waveform inversions. Purple square is DART Buoy 21418, and purple diamonds... Assessment and Reporting of Tsunamis” (DART) buoy #21418 located 600 km... nearshore GPS buoys and at DART buoy #21418 as well as... the dispersive wave train at DART buoy #21418 (Fig. 2j). At... min after the earthquake. At DART buoy #21418 (Fig. 2j), the... nearshore buoys and the offshore DART buoy #21418 nearest Japan (i.e., the... Miyagi; (h) Central Miyagi; (i) South Miyagi; (j) DART buoy #21418 (the black circles... at GPS buoys and the DART buoy (black) are compared to... at nearshore buoys and the DART buoy, on which, in addition... velocity (GPS #4–6) or group velocity (DART #21418; D), for the higher-frequency...; (GPS #6) South Iwate: 25.3 min; DART #21418: 37.6 min. Note that... Iwate nearshore buoys and the DART buoy; furthermore, the tsunami resulting... Iwate GPS buoys and the DART #21418 buoy, respectively, for the....7 min; (#6) South Iwate: 25.3 min; DART #21418: 37.6 min. To accurately... both the GPS and the DART buoys, we found that a triggering... of the GPS buoys and DART #21418. Buoy No/letter Name... d 5 or e 6 or f 7 or g 8 or h 9 or i DART #21418 Kushiro Tomakomai Matsu Ogawara... Miyagi Central Miyagi South Miyagi DART #21418 50.1 50.7 43.8 125... of the GPS (black; #1–9) and DART (white; #21418) buoys. (b) Bathymetric and... waves at the GPS and DART buoys (Fig. 2) to be ti... of GPS buoys and of DART buoy #21418 (time series shown.... 1; waveforms in Fig. 2d–f) and DART buoy #21418 (Fig. 2j), which... elevations) at the GPS and DART buoys (Fig. 14); and (iv... GPS buoys and the offshore DART #21418 buoy (Figs. 15–18... and simulated at the GPS/DART buoys (Fig. 14) was performed... Japan coast, and the offshore DART buoy #21418 (Table 2; Fig. 2; locations... of 100 to 300 m. The DART buoy is located 600 km... nearshore buoys (Figs. 14a–i), and DART buoy #21418 (Fig. 14j); it... Iwate buoys (Figs. 14d–f) and DART buoy #21418 (Fig. 14j), where... at some locations. At the DART buoy #21418, the simulated wave... reasonably well (Fig. 14j). Because DART buoys use a bottom mounted pressure... water depth h (i.e., 5700 m for the DART buoy ^ðωÞ #21418), a Fourier transform is..., Central and South Iwate, and DART buoy #21418, we performed a wavelet..., at the GPS (a–i) and the DART buoy (j), (locations in Fig. 1 and...). In the data recorded at DART buoy #21418 (Fig. 18a) there... coast and DART buoy #21418. In contrast, simulated GPS/DART buoy wave... three Iwate GPS buoys and DART buoy #21418 (Fig. 19). The... fit the first pulse at the DART buoy to some extent, but... of continuous wavelet transform for DART buoy #21418 corresponding to time... offshore GPS buoys and the DART buoy shows that the observed... of the observed GPS and DART buoy data (Fig. 19). The... Iwate buoys, respectively, and (d) is DART buoy #21418 (see Table 2 and... article.) recorded at the GPS/DART buoys identified the most...



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...': B. frikartii 'Amstelveen' — 'Asseln': B. 'Asseln' — 'Dart's Joke': B. 'Dart's Joke' — 'Gracilis': B. 'Gracilis' — 'Haalboom': B. 'Haalboom...: B. wilsoniae var. subcaulialata coxii 'Dart's Joke' (B. candidula 'Dart's Joke') darwinii —pendula: B. stenophylla...: B.stenophylla 'Irwinii' julianae —'Brandkjaer' —'Dart's Diamond' —'Dart's Superb' —'Lombarts Red' —'Mary Poppins... Pygmy': B. t. 'Atropurpurea Nana' —'Dart's Dainty' —'Dart's Decoy' —'Dart's Défiance' —'Dart's Purple' —'DarOt's RedLady' —'Electra...': B. orthobotrys 'Canescens' veitchii vernae verruculosa — 'Dart's Improvement' — 'Dart's Joy' — 'Green Defender' (B. v. 'Robuust...' (B. d. 'Pink Charming') — 'Dartmoor' — 'Dart's Ornamental White' — 'Dart's Papillon Bleu' — 'Dart's Purple Rain' — 'Dubonnet...' — 'Dart's Amethyst' — 'Dart's Beauty' — 'Dart's Brilliant' — 'Dart's Flamboyant' — 'Dart's Gold' — 'Dart's Hedgehog' — 'Dart's Parakeet' — 'Dart's Parrot' — 'Dart's Silver Rocket' — 'Dart's Squirrel' — 'Dart...) — 'Aldenhamensis' — 'Brandkjaer' — 'Corina' — 'Cornubia' — 'Dart's Autumn Delight' — 'Dart's Autumn Parade' — 'Exburiensis' — 'Gerrie...' — 'Dart's Blanket' — 'Dart's Cardinal' (f. f. 'Vegetus Cardinal') — 'Dart's Carpet' — 'Dart's Covergirl' — 'Dart's Dab' — 'Dart's Discovery' — 'Dart's Gem' — 'Dart's Ideal...'; E. 1.argenteomarginatus; E. f. gracilis) — 'Vegetus' — 'Vegetus Cardinal': E. f. 'Dart's Cardinal' — 'Woodland' grandiflorus hamiltonianus — 'Coral... erecta: H. ft. 'Erecta' — 'Cora' — 'Dart's Marathon Man' — 'Dart's Pensford' — 'Dealbata' — 'Deltoidea' — 'Digitata... Rose' —'Brugg' —'Buchfink' —'Buntspecht' —'Dart's Romance' —'Dart's Songbird' —'Deutschland' —'Domotoi' —'Drap's Pink...' — 'Tricolor' 'Lydia' obtusifolium — 'Dart's Dressing' — 'Dart's Elite' — 'Dart's Perfect' — 'Dart's Spreader' — 'Forescate' — var. regelianum...' — aureomarginatum: L. o. 'Aureum' — 'Aureum' (L o. aureomarginatum) — 'Dart's Abundance' — 'Dart's Golddust' — 'Variegatum' {L. ibolium 'Variegatum') — 'Winter...) — var. chinensis — 'Dart's Acumen' (L. acuminata HORT.) — Dart's Forward Look: L.j. 'Interlook' — 'Dart's World' — 'Halliana' — 'Hall's Prolific' — 'Interlook' (Dart's Forward... Mahoberberis (x ) Berberidaceae aquicandidula aquisargentii 'Dart's Desire' 'Dart's Treasure' 'Magic' miethkeana neubertii Mahonia...' — 'Dart's Distinction' — 'Dart's Drummer' — 'Dart's Golden Pride' — 'Dart's Mahogany' 191 Mahonia aquifolium (continued) — 'Dart's Melody' — 'Dart's Quickstep' — 'Dart... Triumph' — 'Dakota Sunrise' — Dart's Cream: P. f. 'Interma' — 'Dart's Golddigger' — 'Dart's Nugget' — 'Dart's Sunnyboy' — 'Daydawn' — 'Donard...' — 'Camelliifolia' — 'Caucasica' — 'Cherry Brandy' — 'Dart's Good News' — Dart's Low 'n Green: P. I. 'Interlo' — 'Edith...' crenatoserrata {P. fortuneana) crenulata 'Dart's Daffodil' 'Dart's Moonlight' 'Dart's Red' 'Dart's Sunbeam' 'Dart's Yellow' fortuneana: P. crenatoserrata... glandulosum (Ft. prostratum) — Dart's Coverboy: R. glandulosum — 'Interboy' (Dart's Coverboy) gordonianum (x) hirtellum holosericeum... — 'Alba' — 'Alboplena' — Dart's Dash: R. r. 'Interdash' — 'Hollandica': R. 'Hollandica' — 'Interdash' (Dart's Dash) — repens: R. paulii...) coreanus — Dart's Mahogany: R. c. 'Intermaho' — 'Intermaho' (Dart's Mahogany) crataegifolius — 'Dart's Jumbo' — 'Prelude' 'Dart's Beaujolais' 'Dart's Phantom...) frasen (x) frondosus fruticosus — 'Dart's Flirtation' — Dart's Robertville: R. f. 'Interoville' — 'Interoville' (Dart's Robertville) — 'Wintercover' 'Green...' tricolor — Dart's Evergreen: R. t. 'Intergreen' — 'Intergreen' (Dart's Evergreen) — 'Twiggy' ulmifolius — 'Bellidiflorus' — 'Dart's Black Cascade... nigra — 'Albopunctata' — 'Aurea' — 'Aureomarginata' — 'Dart's Greenlace' — 'Dart's Pancake' — fastigiata: S. n. 'Pyramidalis' — 'Guincho Purple... 'Coccinea' — 'Crispa': S.japonica 'Crispa' — 'Dart's Red': S.japonica 'Dart's Red' — 'Goldflame': S.japonica 'Goldflame...' crispifolia HORT: S.japonica 'Bullata' 'Dart's Profusion' 'Dart's White Pearl' decumbens densiflora discolor...') — 'Crispa' (S. bumalda 'Crispa') — 'Dart's Pinkie' — 'Dart's Red' (S. bumalda 'Dart's Red') — 'Firelight' — 'Fortunei' — 'Froebelii... Rosaceae incisa — 'Crispa' — Dart's Horizon: S. i. 'Interzon' — 'Interzon' (Dart's Horizon) 'Oro Verde' tanakae...' (V. rhytidocarpum) rhytidocarpum ( x ) : V. 'Rhytidocarpum' rhytidophylloides {x) — 'Alleghany' — 'Dart's Duke' — 'Holland' — 'Willowwood' rhytidophyllum — 'Roseum... — 'Dart's Yellow Lady' — 'Nivea' 'Idéal' japon/ca — Dart's Colourdream: W. j. 'Intercol' — 'Intercol' (Dart....: Ch. I. 'Smithii' — 'Dart's Blue Ribbon' {Ch. I. 'Blue Ribbon'! — 'Dart's Globe' — 'Delorme' — 'Diks...' — 'Cristata Argenteovariegata' — 'Cristata Aurea' — 'Danica' — 'Dart's Green' — 'Dart's Wintergold' — douglasii: T. o. 'Filiformis' — 'Douglasii...



Дата загрузки: 2017-03-10
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... List of Illustrations Figure 1: (Left): DART (upper left) and MUBLCOM (two... of nearly 3 tonnes mass. The DART (Demonstration of Autonomous Rendezvous) mission... technology demonstration project (see Figure 1). DART was designed to perform a variety... (or the navigation algorithms on DART), DART missed a navigation waypoint and collided [10] with MUBLCOM. The DART collision highlights one of the... to operator ephemerides. Figure 1: (Left): DART (upper left) and MUBLCOM (two... estimate for proximity operations. The DART-MUBLCOM collision [10] highlighted the... Defence Advanced Research Projects Agency DART Demonstration of Autonomous Rendezvous DVA...-VII XSS-10 XSS-11 DART Orbital Express MITEX Shi-Jian....pdf [10] NASA, “Summary of DART Accident Report”, http://www/nasa...



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... 350/CS TIPS DART NS 30UL CS384 TIPS DART S 30UL CS384 CONTAINER OPAQUE 175ML 450/CS TIPS DART S F 30UL CS384 CONTAINER 180ML W/10... ANTI-ROLL PLATE 50MM TIPS DART NS 100UL CS384 PLATE ANTI-ROLL TIPS DART S 100UL CS384 ACCSSRY ANTI-ROLL PLATE 38MM TIPS DART S F 100UL CS384 PREFILL 10%NBF... TIPS DART XL NS 30UL CS384 TIPS DART XL S 30UL CS384 TIPS DART... TIPS DART XL NS 30UL CS1920 TIPS DART XL S 30UL CS1920 TIPS DART XL S F 30UL CS1920 TIPS DART NS 300UL CS1920 TIPS DART S 300UL CS1920 TIPS DART S F 300UL CS1920 TIPS DART NS 100UL CS1920 TIPS DART S 100UL CS1920 TIPS DART... TIPS DART XL NS 300UL CS1920 TIPS DART XL S 300UL CS1920 TIPS DART XL S F 300UL CS1920 TIPS DART WB NS 300UL CS1920 TIPS DART WB S 300UL CS1920 TIPS DART... 60HZ TIPS DART NS 30UL CS1920 TIPS DART S 30UL CS1920 TIPS DART S F 30UL...



Дата загрузки: 2017-01-23
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... Demonstration of Autonomous Rendezvous Technology (DART) spacecraft was successfully deployed from... Vandenberg Air Force Base, California. DART was designed to rendezvous with... assistance (autonomously) from ground personnel. DART performed as planned during the... seconds before initiating retirement. Because DART failed to achieve its main... a total 27 defined mission objectives, DART fully or partially met 11... timelines: one for DART’s premature retirement and another for DART’s collision with... completed its assessment of the DART MIB report, which included a classification... Regulations (EAR). As a result, the DART mishap investigation report was deemed... findings and recommendations regarding the DART mishap. 1 DART PROJECT BACKGROUND Proposed by... Reusable Launch Vehicle (2GRLV) Program, DART was selected by NASA as...-risk technology demonstration project. The DART contract was awarded in May... Generation Launch Technology (NGLT) Program. DART, along with other flight demonstration..., increased emphasis was placed on DART, because automated rendezvous technology was... exploration architecture concepts, however, the DART project was continued. Because of... date was scheduled for 2004), DART became NASA’s first flight demonstration of new exploration capability. The DART mission was eventually launched on... million dollars. THE DART AND MUBLCOM SPACECRAFT The DART spacecraft was a combination... systems. The forward segment contained DART-specific systems including a propulsion tank... and distance from DART to MUBLCOM. When the DART-mounted AVGS was...) receivers on DART and a GPS receiver on MUBLCOM. DART would use data... consistent with the objective that DART be a demonstration of autonomous technology. The MUBLCOM satellite was DART’s rendezvous target. OSC launched MUBLCOM... condition. 2 THE DART MISSION PLAN The intent of DART was to demonstrate... During the launch phase, the DART spacecraft, coupled with its Pegasus... Pegasus rocket would ignite, carrying DART into an initial parking orbit..., after completing the systems checks, DART would fire its HAPS thrusters... to guide the “chaser” spacecraft (DART) to a position within the effective... of scheduled maneuvers would move DART into MUBLCOM’s orbit, first at... it was 1 kilometer behind MUBLCOM, DART was programmed to evaluate AVGS... completing its proximity operations maneuvers, DART would perform a departure burn (to... designed to evaluate AVGS performance, DART began to transition its navigational...) and elevation relative to DART. However, as DART approached MUBLCOM, it overshot... happen, the AVGS never supplied DART’s navigation system with accurate measurements... its distance to MUBLCOM. Although DART’s collision avoidance system eventually activated... in relation to MUBLCOM prevented DART from taking effective action to.... Then, shortly after the collision, DART determined that it was nearly...-programmed departure and retirement maneuver. DART’s departure and retirement phase proceeded... the DART MIB. Causes of DART’s Premature Retirement The proximate cause of DART’s premature retirement was that DART... to incorrect navigational data onboard DART caused the higher than expected... in correct navigational solutions. However, DART’s primary GPS receiver consistently produced..., inaccurate, navigational information that caused DART’s premature retirement resulted from a combination... initial, unacceptable, calculated difference between DART’s estimated and measured position that... the design approach used for DART’s guidance system. To make corrections to its flight path, DART’s guidance system used 5 continual, course... of specific, midcourse correction maneuvers. DART’s guidance system was not as... navigation estimates more effectively. While DART’s guidance approach contributed to the... had not occurred). Causes of DART’s Collision with MUBLCOM The collision... spacecraft. This condition existed because DART’s pre-programmed logic for switching... from the flight shows that DART missed this 6.3 meter radius spherical..., it continued moving toward MUBLCOM. DART’s design included a means of collision... OF ROOT CAUSES AND RECOMMENDATIONS DART was a one-time project. Because... specific design changes for the DART spacecraft. The formal mishap report... contractor. In DART’s case, OSC carried over many of DART’s design features... of conducting such a mission as DART. The “hands on” experience gained... Learned Analysis Even though the DART team lacked training and experience, many of DART’s inadequacies could have been addressed... receiver) as the new, estimated DART velocity whenever a reset occurred. This... performance. Systems Engineering For the DART mishap, the MIB determined that...) Restrictions In the case of DART, the MIB concluded that insufficient...-cost, high-risk demonstration. As DART’s significance changed, and it gradually... successful space exploration. As the DART project evolved, its planned mission clearly supported that vision. While DART’s transition to such a high-visibility...