Спутник технологический. OE-NEXTSAT. [Редактировать]

Ball Aerospace предоставил NEXTSat/CSC (Next Generation Satellite and Commodities spacecraft) и наземную станцию управления для проекта Orbital Express.Ball Aerospace's NEXTSat/CSC унаследовал архитектуру от Deep Impact Impactor, включая программное обеспечение, бортовой компьютер и систему энергопитания. Данные элементы являются типовыми и используются на платформе BCP-2000.

Дополнительные наименования

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Дополнительная классификация

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

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг215
2Масса (полезная нагрузка), кг63
3Масса (платформы), кг152
4Емкость запоминающего устройства, Мбит256
5Платформа 1xBCP-300
6Мощность, Вт215
7Мощность (забираемая платформой), Вт147
8Мощность (полезная нагрузка), Вт58
9Емкость (аккумулятора), ампер часов29
10Точность (определения положения аппарата), град0.5
11Точность (системы управления), град2.89
12Скорость передачи данных на Землю, Мбит в секунду0.524

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град46.0
2Апогей, км502.5
3Перигей, км493.2
4Период, минут94.4
5САС, месяца4
6Длинный диаметр эллипса, км6868

Пусковые характеристики

#ХарактеристикаЗначение
1Код NSSDC2007-006C

Экономические характеристики

#ХарактеристикаДата измеренияЗначение
1Оператор DARPA
2Производитель Ball Aerospace

Информация об удачном запуске

#ХарактеристикаЗначение
1Дата пуска2007-03-09 at 03:10:00 UTC
2Полезная нагрузка 1xOE-ASTRO
3Полезная нагрузка 1xMidSTAR 1
4Полезная нагрузка 1xOE-NEXTSAT
5Полезная нагрузка 1xSTPSat 1
6Полезная нагрузка 1xFalconSat 3
7Полезная нагрузка 1xCFESat
8Ракета-носитель 1xАтлас 5

Найдено 19 документов по запросу «OE-NEXTSAT». [Перейти к поиску]


Дата загрузки: 2017-02-23
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0.16/5
... spacecraft is based on the NextSat spacecraft procured under DARPA’s Orbital... WISE spacecraft built for NASA. NextSat was launched March 8, 2007 mated... km, 46 degree inclined orbit. NextSat was decommissioned, as planned, July... represents a natural evolution from the NextSat and WISE implementations. It is... Implementations Rapid III BCP 300 OE/NextSat WISE Observatory Mass 215 kg...



Дата загрузки: 2017-01-16
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0.15/5
... NO ELEMS. AVAILABLE 2007-006A OE (ASTRO) USA 491 498 46... 495 498 46.0 2007-006C OE (NEXTSAT) USA 492 498 46.0 2007...



Дата загрузки: 2017-02-18
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0.13/5
... nominal 149 heritage mission(s) name(s) OE/NextSat, WISE QuikSCAT, QuickBird, ICESat, CloudSat...



Дата загрузки: 2016-11-11
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0.05/5
... 350 800 heritage mission(s) name(s) OE/NextSat, WISE QuikSCAT, QuickBird,  ICESat, CloudSat...



Дата загрузки: 2017-01-30
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0.17/5
... Project Agency (DARPA) Orbital Express (OE) Demonstration System Mission Cornelius J. Dennehy... Project Agency (DARPA) Orbital Express (OE) Demonstration System Mission Cornelius J. Dennehy... Project Agency (DARPA) Orbital Express (OE) Demonstration System Mission April 4, 2011... Background .................................................................................................. 8 Summary of the Driving OE Event ...................................................................................... 11 Relevance to Future... ........................................................................................................................... 30 List of Figures Figure 5.1-1. OE AGN&C System Block Diagram (from... 5.1-2. Effective Operational Ranges of the OE ARCSS (from ref. 2) ............................ 10 Figure... Project Agency (DARPA) Orbital Express (OE) rendezvous and docking flight test... rendezvous missions resulting from his OE support experience. This report captures... Project Agency (DARPA) Orbital Express (OE) Demonstration System mission. In particular... occurred during one of OE’s unmated operations. Although OE successfully recovered from... next generation satellite/commodity spacecraft (NextSat/CSC) functioned as the satellite... active (chaser) vehicle with the NextSat/CSC as the passive (target... 2005. The ARCSS system provided NextSat/CSC target spacecraft state information..., ASTRO eventually re-mated with NextSat. The contractor, with assistance from... the problems ASTRO encountered, and OE performed its remaining unmated scenarios... this report reviews and summarizes OE’s problems during Scenario 3-1. Reference 5 may... test experience. Capturing and disseminating OE lessons learned is an important... This section reviews aspects of OE’s second unmated operation, Scenario 3-1, which... a successful in-plane circumnavigation of NextSat at an approximate radius of... station-keeping box 120 m trailing NextSat. ARCSS data were lost due..., eventually reaching approximately 2.5 km following NextSat, an estimate based on ASTRO...) solutions and ground tracking of NextSat. 2 No root cause was identified... to be 6 km ahead of NextSat. Over the next several days... maneuvered to within 2.5 km of NextSat, from which point LRF range... 5 and 6 describe, with these adjustments, OE resumed unmated operations and completed... hosted the sensor processing software. OE’s flight software, performing as programmed... a stable stationkeeping point 120 m following NextSat, at the same orbital altitude... a stable and safe separation from NextSat, necessitating additional ground intervention. With... ASTRO to drift further from NextSat. As described previously, the drift...-flight experience showed that the OE navigation filter often underestimated its... to NextSat, ASTRO would fly through a conical corridor extending along NextSat’s docking... NextSat would remain sun pointing during the approach, and sometimes NextSat would... passed from one side of NextSat to the other without real... within 10 m or less of NextSat in the process of switching... into ASTRO’s orbit relative to NextSat. The groundbased solutions suggest that...-plane motion was close to NextSat, it probably had a reasonably safe... navigation filter’s model of how NextSat’s orbit propagated during sensor outages... errors. The navigation filter modeled NextSat’s orbit using a gravity model that... confusion among OE’s ground operators concerning ASTRO’s position relative to NextSat. After... ASTRO was leading or following NextSat. Once the recovery was underway... see via downlink imagery that NextSat was in the sensors’ fields... subsequently associating the image of NextSat with a successful target track. Another... set operating parameters when acquiring NextSat. In some cases, this seed... demating ASTRO and NextSat using the robotic arm, moving NextSat while remaining... the calibration, and then remating. NextSat remained in the sensors’ fields..., but with the change that NextSat was moved out of the... a system capability. As originally configured, OE was only capable of downlinking... aforementioned residual standard deviation. In OE’s case, the filter typically underestimated... the recovery from contingencies. The OE design avoided limitations that precluded ground intervention. In general, OE limited autonomous contingency responses to.... Additionally, to avoid the problems OE experienced in Scenario 3-1, future RPODU... factors and circumstances previously described, OE’s ability to provide such data... following summarize how calibration practices OE adopted during its anomaly recovery... and testing. As previously described, OE performed a significant amount of high... (e.g., the corridor approach used by OE). Implement robust strategies to ensure... for station-keeping 120 m following NextSat). Provide a robust method for ensuring...; and during difficulties experienced by OE and Experimental Satellite System (XSS... Project Agency (DARPA) Orbital Express (OE) Demonstration System Mission 5b. GRANT... rendezvous missions resulting from his OE support experience. This report captures...



Дата загрузки: 2017-03-10
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0/5
...), was used to service the NextSat spacecraft (client satellite). The OEDMS... capture of the free-flying NextSat and autonomous ORU (On-Orbit... capture of the free-flying NextSat with a robotic manipulator. Features of... camera photo of the ASTRO/NextSat stack on-orbit is illustrated... the satellites, the arm grappled NextSat (held de-rigidized by the... occasions, the arm positioned the NextSat in front of ASTRO sensors... where the arm grappled NextSat was to position NextSat within the capture... service the NextSat, a Figure 1. Composite photo of the mated ASTRO / NextSat stack... grapple fixture mounted on the NextSat, as well as the Manipulator... (operations where ASTRO undocked from NextSat), the autonomous rendezvous system flew... while its sensors tracked the NextSat satellite. After station-keeping at... at close range (e.g. 10 m [1]) to NextSat. The ASTRO subsequently executed the... approach, maneuvering to position the NextSat within a desired capture envelope. The... ORUs from the ASTRO to NextSat and back. The ORU Interface... ASTRO and the ORU. 2.2. NextSat The NextSat, developed by Ball Aerospace, was... for the ASTRO servicer ([1], [2]). The NextSat could determine and control its... capture system was installed on NextSat to support direct capture, while... NextSat to support free-flyer capture with the robotic arm. The NextSat... battery ORU was transferred to NextSat prior to the execution of..., and it was incorporated into NextSat’s electrical power and distribution system... portion of the ASTRO and NextSat satellites when the two spacecraft... commanded to track and capture NextSat based on pose estimates from... the NextSat. Four visual servo operations were performed where the NextSat was... occasions, the OEDMS captured the NextSat while it was fully unconstrained... way to full rigidization of NextSat to the end-effector. See... Express mission. The ASTRO and NextSat were launched together for the... NextSat to perform unmated operations such as autonomous rendezvous and capture. NextSat... controlled its approach to the NextSat with its thrusters, so the... using the ASTRO capture system, NextSat was equipped with an OEDMS... approached and station-kept with NextSat so that the OEDMS vision... target and grapple probe on NextSat came within a specified capture envelope...) configuration prior to entering the NextSat approach corridor. The RFFC configuration... position and orientation of the NextSat relative to the tip of... the grapple fixture on the NextSat prior to the initiation of... and grapple fixture on the NextSat were within the field of... station-kept to maintain the NextSat in the capture envelope. Once... to track and capture the NextSat. The NextSat was freely floating in... orientation of the target on NextSat relative to the tip of... towards the grapple fixture on NextSat. The arm visual servo control... the arm to move the NextSat to a predetermined position and orientation... spacecraft. The arm presented the NextSat to the ASTRO capture system... the NextSat. Finally, the arm released and backed away from the NextSat grapple fixture, and the ASTRO capture system re-mated the NextSat... its base when holding the NextSat was considerable, and larger than... spacecraft. Both the ASTRO and NextSat were in a free-drift mode... (once), (2) Static NextSat Capture (four times), and (3) Free-Flying NextSat Capture (twice... servo checkout. The checkout involved NextSat target acquire, track and approach... a pre-determined distance from the NextSat grapple fixture. The next four..., capture and rigidize, with the NextSat being held in a de-rigidized... and the tip of the NextSat grapple fixture at the time... 0 5 10 15 20 25 0.2 Y [m] The NextSat was equipped with a grapple fixture... carriage to rigidly secure the NextSat to the tip of the... captured the fully free floating NextSat, as part of Orbital Express... servo, making contact with the NextSat grapple fixture probe well within... the arm subsequently captured the NextSat PFA and ultimately rigidized it... of the arm to the NextSat grapple fixture, from initiation of... x-axis plot. Capture of the NextSat grapple fixture probe by the... the grapple fixture provided for NextSat). The arm then descended to...-335. [9] DARPA Tactical Technology Office, OE Mission Page, http://www.darpa... [10] Boeing Integrated Defense Systems, OE Mission Page, http://www.boeing...



Дата загрузки: 2017-01-30
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0.37/5
... chosen for the Orbital Express (OE) mission. Key analysis efforts, which... Orbital Express Flight Design The OE program was intended to develop... servicing. To demonstrate the technology, OE planned to use two spacecraft... client vehicle, referred to as NEXTSat, and the servicing vehicle, referred... ASTRO. An illustration of the OE vehicles is shown in Figure... suited to the SRC design. OE was still in the proposal... balance the design objectives of OE within the practical limits of... meet the requirements of the OE program. Therefore, the capture capability... in the scope of the OE program. Mechanical Docking System (MDS... the parallel effort of the OE flight unit design. In house... structure and institute preload. The OE program required a sensor to confirm... Express Mission NEXTSat Astro OECS Figure 15: Astro and NEXTSat mated by... support of launch loads for NEXTSat. After system checkout and stabilization... on a mating port on the NEXTSat spacecraft. Overall, all mission goals...



Дата загрузки: 2017-01-23
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0.34/5
... scheduling/sequencing framework to the OE (Orbital Express) mission. We provide a description of the OE operations, and a characterization of the.... The two spacecraft flown on OE were Boeing’s Autonomous Space Transport... Aerospace’s Next Generation Serviceable Satellite (NextSat) spacecraft, whose role was that... the mission. Planning Problem The OE mission domain required fast turn... 3.B. for A. The OE Ring-Eject Procedure B. A Demate/Mate Scenario: NextSat is 14m... and scheduling during the mission. OE required evaluation of many alternatives... The planning process for the OE procedure execution days began weeks... the execution day’s contacts. Originally, NextSat contacts were not going to... contacts with the planning tool, NextSat’s low-maintenance strategy, and the... Agency (Nasda) Engineering Test Satellite 7, OE was the first successful demonstrator... is on-going, ASTRO and NextSat completed their end-of-life...



Дата загрузки: 2016-12-29
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0.06/5
... 2007-006C 3/9/07 Atlas V 401 Nextsat (orbital express) US US Technology... Orbital Express program, ASTRO and NextSat, were launched into LEO on... of the tests, ASTRO and NextSat were decommissioned.99 Another program... stages of its approach to NextSat in the final experiment of... onboard Astro lost track of NextSat at a distance of 310 km... for NextSat. Astro then maneuvered toward the predicted location of NextSat and... US Technology LEO 9/03/2007 Nextsat Atlas V 401 US Technology LEO...



Дата загрузки: 2016-11-24
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0.04/5
... modular NEXT-generation serviceable Satellite (NEXTSat). NEXTSat was designed with servicing in... successfully performed autonomous docking with NEXTSat and demonstrated fuel transfer as... the insertion of a battery into NEXTSat and changeout of a flight computer... MSS MUBLCOM NAC NASDA NCS NEXTSat NICMOS NOBL NPR NSSK OD... 8 based on the Orbital Express (OE) and Demonstration of Autonomous Rendezvous... Defense. “Orbital Express.” Orbital Express (OE) was designed to demonstrate in... servicing. Astro was the servicer; NextSat, the customer, was equipped with... Astro to NextSat without pumps. The pumped transfer came later. NextSat also... not collision avoidance, but finding NextSat. Lt. Col. Kennedy suggests incorporating... the future. In summary, the OE mission demonstrated the technical feasibility...