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OSIRIS-REx
 
8 ноября прошёл очередной пресс-брифинг по работам с зондом Hayabusa-2. На брифинге был упомянут родственный проект НАСА OSIRIS-REx.

Материалы брифинга на англ. яз. - Hayabusa2_Press20181108_ver6_en2.pdf, - 2.8 MB, 37 стр, 2018-11-09 08:30:24 UTC

 
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NASA's OSIRIS-REx‏Подлинная учетная запись @OSIRISREx 12 нояб.

Today I'll be executing Asteroid Approach Maneuver 4, the final engine burn in a series designed to slow my speed relative to Bennu as I approach the #asteroid.
#WeBrakeForAsteroids
More details: http://bit.ly/AAM1Info
 
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NASA's OSIRIS-REx‏Подлинная учетная запись @OSIRISREx 12:49 - 13 нояб. 2018 г.

Asteroid Approach Maneuver 4 was a success and I'm on track for arrival at Bennu on Dec. 3! AAM-4 used the ACS thrusters, which are capable of velocity changes as small as 0.02 mph. I'll be relying on them a lot when I start flying around Bennu. More: https://bit.ly/2zU1YKu


https://www.asteroidmission.org/?latest-news=nasas-osiris-rex-executes-fourth-asteroid-approach-maneuver
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NASA’s OSIRIS-REx Executes Fourth Asteroid Approach Maneuver


November 13, 2018 - NASA’s OSIRIS-REx spacecraft executed its fourth Asteroid Approach Maneuver (AAM-4) yesterday. The spacecraft fired its Attitude Control System (ACS) thrusters to slow the spacecraft from approximately 0.31 mph (0.14 m/sec) to 0.10 mph (0.04 m/sec). The ACS thrusters are capable of velocity changes as small as 0.02 mph (0.01 m/sec). The mission team will continue to examine telemetry and tracking data over the next week to verify the new trajectory. The maneuver targeted the spacecraft to fly through a corridor designed for the collection of high-resolution images that will be used to build a shape model of Bennu.

With the execution of AAM-4, the OSIRIS-REx spacecraft concludes a six-week series of Bennu approach maneuvers. AAM-1 and AAM-2, which executed on Oct. 1 and Oct. 15 respectively, slowed the spacecraft by a total of approximately 1,088 mph (486 m/sec). AAM-3 and AAM-3A, which executed on Oct. 29 and Nov. 5 respectively, further refined the spacecraft’s trajectory and speed to set the conditions for a successful AAM-4 maneuver. After a final correction maneuver scheduled for Nov. 30, the spacecraft will be on track to arrive at a position 12 miles (20 km) from Bennu on Dec. 3.
 
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Dante Lauretta‏ @DSLauretta 6 ч. назад

Today on @OSIRISREx, we are deploying the Touch-and-Go Sample Acquisition Mechanism (TAGSAM) - our robotic sampling arm. This operation is the first time we have exercised the full range of motion on TAGSAM since launch. Images will be downlinked tomorrow for final verification.

 
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OSIRIS-REx TAGing Asteroid Bennu
Доступ по ссылке

OSIRIS-REx Mission

Дата загрузки: 15 нояб. 2018 г.

In mid-2020, the OSIRIS-REx spacecraft will use its TAGSAM (Touch-and-Go Sample Acquisition Mechanism) device to stir up and collect a sample of loose material from asteroid Bennu’s surface. That material, which may contain organic molecules that are the precursors to life in the Solar System, will be returned to Earth for study in 2023.
https://www.youtube.com/watch?v=CWBALheaIMw
Загрузка плеера
(0:26)
 
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Testing the OSIRIS-REx Spacecraft's Asteroid Sampling Arm
Доступ по ссылке

OSIRIS-REx Mission

Дата загрузки: 15 нояб. 2018 г.

Over a month-long period beginning Oct. 17, 2018, the OSIRIS-REx team conducted a series of tests to ensure that TAGSAM, the spacecraft’s sampling mechanism, is ready to collect a sample from Bennu in 2020. This rehearsal marked the first time since launch that the TAGSAM arm has moved through its full range of motion.
https://www.youtube.com/watch?v=4jJpyB8ieoc
Загрузка плеера
(0:17)
 
https://www.asteroidmission.org/?latest-news=tagsam-testing-complete-osiris-rex-prepared-tag-asteroid
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TAGSAM Testing Complete: OSIRIS-REx Prepared to TAG an Asteroid
By Christine Hoekenga


November 16, 2018 - On Nov. 14, NASA’s OSIRIS-REx spacecraft stretched out its robotic sampling arm for the first time in space. The arm, more formally known as the Touch-and-Go Sample Acquisition Mechanism (TAGSAM), is key to the spacecraft achieving the primary goal of the mission: returning a sample from asteroid Bennu in 2023.


This image, showing the OSIRIS-REx Touch-and-Go Sample Acquisition Mechanism (TAGSAM) sampling head extended from the spacecraft at the end of the TAGSAM arm, was taken by the SamCam camera on Nov. 14, 2018 during a visual checkout of the spacecraft’s sampling system. A similar observation will be taken at Bennu during sample collection to help document the asteroid material collected in the TAGSAM head. Credit: NASA/Goddard/University of Arizona

As planned, engineers at Lockheed Martin commanded the spacecraft to move the arm through its full range of motion – flexing its shoulder, elbow, and wrist “joints.” This long-awaited stretch, which was confirmed by telemetry data and imagery captured by the spacecraft’s SamCam camera, demonstrates that the TAGSAM head is ready to collect a sample of loose dirt and rock (called regolith) from Bennu’s surface.
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Dante Lauretta‏ @DSLauretta 8 ч. назад

The fourth @OSIRISREx coin design is complete! Get your set now on @kickstarter https://www.kickstarter.com/projects/827615927/downlink-the-game-of-planetary-discovery …

 
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Jonathan McDowell‏Подлинная учетная запись @planet4589 13:46 - 18 нояб. 2018 г.

NASA's @OSIRISREx space probe continues its approach to minor planet (101955) Bennu - now only 125 km away. It will enter Bennu's Hill sphere on Nov 30. Meanwhile, JAXA's @haya2e_jaxa remains parked 20 km from (162173) Ryugu
 
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NASA's OSIRIS-REx‏Подлинная учетная запись @OSIRISREx 42 мин.42 минуты назад

I'm now only about 120 kilometers (75 miles) from #asteroid Bennu and recently completed a test of TAGSAM, my sample collection system.
#WhereIsOSIRISREx

http://www.asteroidmission.org/where-is-the-spacecraft/
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What are asteroids, and why do we study them?

Canadian Space Agency

Опубликовано: 16 нояб. 2018 г.

Check out this video to learn what asteroids are and what these cosmic time capsules can tell us about the earliest days of our solar system. Did you know that the Canadian Space Agency is contributing to OSIRIS-REx, a mission to collect an asteroid sample? The seven-year journey will bring loose dust and gravel from the surface of asteroid Bennu to Earth in 2023. (Credit: Canadian Space Agency)
https://www.youtube.com/watch?v=aq0HnY205Wg
Загрузка плеера
(2:13)
 
https://www.asteroidmission.org/tagsam-samcam-side-by-side/
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TAGSAM Sampler Head at Two Angles

These images show the OSIRIS-REx Touch-and-Go Sample Acquisition Mechanism (TAGSAM) sampling head extended from the spacecraft at the end of the TAGSAM arm. The spacecraft’s SamCam camera captured the images on Nov. 14, 2018 as part of a visual checkout of the TAGSAM system, which was developed by Lockheed Martin Space to acquire a sample of asteroid material in a low-gravity environment. The imaging was a rehearsal for a series of observations that will be taken at Bennu directly after sample collection.

In the image on the left, the TAGSAM head is tilted at five degrees on the arm and is brightly illuminated by the Sun. At this angle, the light saturates the lattice-like grille that surrounds the head and illuminates its interior, providing the lighting conditions needed to document the sample of Bennu once collected. In the image on the right, the TAGSAM head is aligned with the arm to clearly show the bottom surface of the head, including the metallic pads designed to capture additional dust and small particles from Bennu’s surface.

Date Taken: Nov. 14, 2018

Instrument Used: OCAMS (SamCam)

Credit: NASA/Goddard/University of Arizona
 
https://www.asteroidmission.org/bennu-at-300-px/
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Bennu at 300 Pixels

NASA’s OSIRIS-REx spacecraft obtained this image of the asteroid Bennu on November 16, 2018, from a distance of 85 miles (136 km). The image, which was taken by the PolyCam camera, shows Bennu at 300 pixels and has been stretched to increase contrast between highlights and shadows.

Date Taken: November 16, 2018

Instrument Used: OCAMS (PolyCam)

Credit: NASA/Goddard/University of Arizona
 
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NASA's OSIRIS-REx‏Подлинная учетная запись @OSIRISREx 4 ч. назад

It now takes nearly 14 minutes round-trip for me to communicate with my team back on Earth. My light time will increase as I approach #asteroid Bennu and will be more than 20 minutes during sample collection. More on my progress: http://bit.ly/WhereIsOREX


http://www.asteroidmission.org/where-is-the-spacecraft/
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Jonathan McDowell‏Подлинная учетная запись @planet4589 3 ч. назад

The @OSIRISREx probe should now be about 41 km from Bennu.
 
https://www.asteroidmission.org/orex-arrival-5-days-carousel/
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4 Days Until Arrival

In just four days — on Dec. 3, 2018 — NASA’s OSIRIS-REx spacecraft will arrive at asteroid Bennu after more than two years traveling through space. Once it reaches its destination, the spacecraft will spend about a year and a half surveying this never-before-visited asteroid and preparing to collect a sample of surface material for return to Earth.

On Dec. 3 at 9:45 am MT/11:45 am ET, join members of the mission team for a LIVE NASA broadcast from the control room at Lockheed Martin celebrating the spacecraft’s arrival at Bennu. Brush up on your mission knowledge with pre-show programming beginning at 9:15 am MT/11:15 am ET.

Viewing options for the broadcast include Facebook Live, Ustream, YouTube and the NASA website.

Participants in the arrival coverage event include:
• Michelle Thaller, moderator, NASA’s Goddard Space Flight Center, Greenbelt, Md
• Heather Enos, OSIRIS-REx deputy principal investigator, University of Arizona, Tucson
• Rich Burns, OSIRIS-REx project manager, NASA’s Goddard Space Flight Center, Greenbelt, Md
• Mark Fisher, OSIRIS-REx spacecraft engineer, Lockheed Martin Space, Littleton, Colo.
• Coralie Adam, OSIRIS-REx flight navigator, KinetX, Inc. Space Navigation and Flight Dynamics, Simi Valley, Calif.

Media can submit questions in advance to Danielle.M.Hauf@lmco.com. On Dec. 3, media and the public may ask questions using the hashtag #askNASA on Twitter or by leaving a comment on the livestream of the event on the OSIRIS-REx Mission Facebook page.

Credit: University of Arizona
 
https://www.nasa.gov/press-release/nasa-provides-live-coverage-of-spacecraft-arrival-at-asteroid-that-may-have-answers-to
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Nov. 29, 2018
MEDIA ADVISORY M18-180

NASA Provides Live Coverage of Spacecraft Arrival at Asteroid That May Have Answers to the Origin of our Solar System


This "super-resolution” view of asteroid Bennu was created using eight images obtained by NASA’s OSIRIS-REx spacecraft on Oct. 29, 2018, from a distance of about 205 miles (330 kilometers).
Credits: NASA/Goddard/University of Arizona
Larger view


NASA’s Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx) spacecraft is scheduled to rendezvous with its targeted asteroid, Bennu, on Monday, Dec. 3 at approximately noon EST.

NASA will air a live event from 11:45 a.m. to 12:15 p.m. EST to highlight the arrival of the agency’s first asteroid sample return mission. The program will originate from OSIRIS-REx’s mission control at the Lockheed Martin Space facility in Littleton, Colorado, and will air on NASA Television, Facebook Live, Ustream, YouTube and the agency's website. NASA TV also will air an arrival preview program starting at 11:15 a.m. EST.

OSIRIS-REx launched in September 2016 and has been slowly approaching Bennu. The spacecraft will spend almost a year surveying the asteroid with five scientific instruments with the goal of selecting a location that is safe and scientifically interesting to collect the sample. OSIRIS-REx will return the sample to Earth in September 2023.

Participants in the arrival coverage event include:
  • Michelle Thaller, moderator, NASA’s Goddard Space Flight Center, Greenbelt, Md
  • Rich Burns, OSIRIS-REx project manager, NASA’s Goddard Space Flight Center, Greenbelt, Md
  • Heather Enos, OSIRIS-REx deputy principal investigator, University of Arizona, Tucson
  • Mark Fisher, OSIRIS-REx spacecraft engineer, Lockheed Martin Space, Littleton, Colo.
  • Coralie Adam, OSIRIS-REx flight navigator, KinetX, Inc. Space Navigation and Flight Dynamics, Simi Valley, Calif.
Last Updated: Nov. 29, 2018
Editor: Katherine Brown
 
NASA будет транслировать приземление зонда на астероид в прямом эфире

Не успел посадочный модуль InSight отдохнуть от своего приземления на Красную планету, как NASA уже готовится к другому потрясающему событию. Космический аппарат Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer (OSIRIS-REx, если коротко) приближается к астероиду Бенну, и NASA будет транслировать встречу в прямом эфире. Само рандеву зонда с астероидом состоится в понедельник, 3 декабря. Трансляция будет вестись из центра управления миссией OSIRIS-REx, так что мы сможем увидеть всех инженеров, наблюдающих за состоянием космического аппарата.


Космический аппарат направился к своей цели в сентябре 2016 года.
«Осирис-Рекс» сядет на Бенну
Цель аппарата — приземлиться на космический камешек и заняться его исследованиями, и в NASA, конечно же, с восторгом думают о том, что аппарат мог бы найти. Но прежде чем это произойдет, ученым нужно сперва выбрать место для посадки, чтобы у OSIRIS-REx были наибольшие шансы на успех. После проведения всех необходимых замеров, посадочный модуль покинет астероид и отправится к Земле с образцом материала с Бенну.
«Космический аппарат потратит почти год на исследование астероида с помощью пяти научных приборов, чтобы выбрать место, которое будет наиболее безопасным и интересным с точки зрения науки для сбора образцов», объясняет NASA. «OSIRIS-REx вернет образцы на Землю в сентябре 2023 года».
Подробности о прямом эфире NASA, который продлится примерно полчаса, а также о самой миссии, вы еще обязательно найдете на нашем сайте, поэтому проверяйте почаще. Получаса будет достаточно, чтобы NASA смогло подтвердить безопасное приземление зонда. Пока неизвестно, впрочем, какого рода информацию мы, как зрители, сможем получить с астероида Бенну.
 
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Jonathan McDowell‏Подлинная учетная запись @planet4589 5 мин. назад

Assuming @OSIRISREx is continuing on its planned trajectory, it has now arrived within Bennu's Hill Sphere - it has reached the asteroid!
 
https://tass.ru/kosmos/5862684
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3 ДЕК, 01:44
Американский зонд подлетит к астероиду Бенну для изучения его поверхности

ТАСС, 3 декабря. Американская межпланетная станция OSIRIS-REx в понедельник подлетит к астероиду Бенну, поверхность которого ей предстоит изучать в течение следующих двух лет. Об этом в воскресенье сообщило Национальное управление США по аэронавтике и исследованию космического пространства (NASA) на своей странице в Twitter.

"Завтра наш OSIRIS-REx встретится с околоземным астероидом Бенну! Он будет изучать Бенну более двух лет прежде, чем забрать и доставить образец [грунта] на Землю", - говорится в сообщении.
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NASA‏Подлинная учетная запись @NASA 12:38 - 2 дек. 2018 г.

Tomorrow's the day for our @OSIRISREx spacecraft's rendezvous with near-Earth asteroid Bennu! It'll study Bennu for over two years, before collecting & returning a sample back to Earth. How to watch the approach live starting at 11:45am ET: https://go.nasa.gov/2FVscSY #WelcomeToBennu

Зонд был выведен в космос 8 сентября 2016 года. В сентябре этого года он приступил к первым исследованиям - изучению пылевых выбросов вокруг Бенну, чтобы рассчитать безопасную траекторию подлета станции к астероиду.

Аппарат оснащен несколькими приборами, в том числе фотокамерами, спектрометрами и лазерным дальномером. OSIRIS-REx начнет вести планомерную съемку и картографирование поверхности астероида. На основании полученных данных эксперты выберут место для забора грунта, что планируется осуществить в середине 2020 года без посадки с помощью руки-манипулятора, снабженной специальным пневматическим устройством. NASA надеется собрать до 2 кг пыли и грунта, которые должна доставить на Землю специальная капсула в сентябре 2023 года.
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