Новости МКС

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 Jeff Foust @jeff_foust 23 мин. назад

Bridenstine hints that the Demo-2 return might slip a few days because of weather, although an Aug. 2 splashdown is still possible. Issue is weather and sea states at the potential splashdown sites.

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https://blogs.nasa.gov/spacestation/2020/07/29/crew-dragon-suit-checks-as-station-begins-orbital-reboosts/

Crew Dragon Suit Checks as Station Begins Orbital Reboosts

Mark Garcia
Posted Jul 29, 2020 at 1:59 pm


This long-exposure photograph from the space station reveals the Milky Way glittering above a bright but exaggerated atmospheric glow blanketing the Earth's horizon.

The Expedition 63 crew checked out SpaceX Crew Dragon suits today and stayed busy with a full slate of space research. The International Space Station also completed the first of three orbital reboosts to get ready for the next crew mission in October.

Flight Engineers Doug Hurley and Bob Behnken inspected the suits they will wear when they return to Earth aboard the Crew Dragon spaceship. The duo tried on their suits for a fit check and ensured the components are in good condition. They are scheduled to depart the station on Saturday and splashdown the following day. NASA TV will cover all the departure activities live.

The homebound-duo started the day replacing environmental control system (ECS) hardware aboard the orbiting lab. That work required temporarily removing a plant habitat from the Unity module to access the ECS.

Commander Chris Cassidy had his hands full as he worked on specialized hardware that enables research into disordered solids, or glass, and materials heated to extreme temperatures. He first set up a Light Microscopy Module that will look at the microscopic transition of glass-forming materials. Next, he worked on the Electromagnetic Levitator that observes the thermophysical properties of liquid metallic alloys.

Roscosmos cosmonauts Anatoly Ivanishin and Ivan Vagner stayed busy today as they checked out Orlan spacesuits, serviced life support gear and analyzed station air samples for impurities.

The docked Progress 75 resupply ship fired its engines this morning for five-and-a-half minutes slightly lifting the station's orbit. There will be two more station reboosts before the Soyuz MS-17 crew ship launches in October with NASA astronaut Kate Rubins and cosmonauts Sergey Ryzhikov and Sergey Kud-Sverchkov. They will dock to the Rassvet module a few hours after launch to begin a six-month mission as the Expedition 64 crew.

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https://blogs.nasa.gov/commercialcrew/2020/07/29/nasa-spacex-go-for-astronaut-return-briefing-today-at-330-p-m-edt/
https://blogs.nasa.gov/kennedy/2020/07/29/nasa-spacex-go-for-astronaut-return-briefing-today-at-330-p-m-edt/

NASA, SpaceX "Go" for Astronaut Return, Briefing Today at 3:30 p.m. EDT

Anna Heiney
Posted Jul 29, 2020 at 2:30 pm



NASA and SpaceX teams remain "Go" for the return of the agency's SpaceX Demo-2 test flight with NASA astronauts Robert Behnken and Douglas Hurley from the International Space Station following the Return Flight Readiness Review, with the primary factor being weather.

NASA and SpaceX are targeting 7:34 p.m. EDT Saturday, Aug. 1, for undocking of the Dragon "Endeavour" spacecraft from the space station and 2:42 p.m. Sunday, Aug. 2, for splashdown, which will be the first return of a commercially built and operated American spacecraft carrying astronauts from the space station.

NASA and SpaceX will hold the Return Flight Readiness Review briefing at 3:30 p.m. EDT on NASA TV and the agency's website from the Johnson Space Center to talk the details of the return of the end-to-end test flight. Participants are:

• NASA Administrator Jim Bridenstine
• Steve Stich, manager, NASA's Commercial Crew Program
• Joel Montalbano, manager, NASA's International Space Station Program
• Benji Reed, director, crew mission management, SpaceX

The test flight also is helping NASA certify SpaceX's crew transportation system for regular flights carrying astronauts to and from the space station. SpaceX is readying the hardware for the first rotational mission, which would occur following NASA certification.

The goal of NASA's Commercial Crew Program is safe, reliable and cost-effective transportation to and from the International Space Station. This could allow for additional research time and increase the opportunity for discovery aboard humanity's testbed for exploration, including helping us prepare for human exploration of the Moon and Mars.

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https://ria.ru/20200730/1575138091.html

Доставленные "Прогрессом" приборы не нашли токсичный бензол в воздухе МКС
01:14 30.07.2020

МОСКВА, 30 июл - РИА Новости. Американские газоанализаторы, доставленные российским грузовым кораблем "Прогресс", не обнаружили токсичный бензол в атмосфере Международной космической станции, сообщило НАСА.

Ранее космическое агентство рассказало, что на "Прогрессе МС-15", прибывшем на станцию 23 июля, были доставлены два газоанализатора Draeger и 90 тест-пластинок для поиска источника бензола.

"Показания (приборов) к данному моменту были ниже порога (их) чувствительности", - говорится на сайте НАСА.

Отмечается, что экипаж продолжит делать замеры примерно раз в два дня в зависимости от показаний.

Бензол был зафиксирован в воздухе МКС в апреле. Сначала его концентрация держалась на уровне 65 микрограммов на кубический метр, после чего стала повышаться. Однако, как сообщили в мае РИА Новости в "Роскосмосе", концентрация не превышала предельно допустимую норму и не угрожала экипажу.

Источник бензола до сих пор не найден. Для снижения его концентрации экипажем были установлены угольные фильтры.
В июне единственный прибор для поиска источника бензола - американский анализатор качества воздуха AQM-1 - сломался в июне при проведении замеров в российском сегменте станции. В связи с этим поиск был приостановлен до доставки нового оборудования на "Прогрессе МС-15".
...

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https://ria.ru/20200730/1575184073.html

Россия запустила на МКС собственный интернет
18:11 30.07.2020 (обновлено: 18:12 30.07.2020)

МОСКВА, 30 июл - РИА Новости. Российский сегмент МКС подключили к широкополосному спутниковому каналу связи с Землей и избавившись от необходимости использовать американские каналы связи, сообщает Ракетно-космическая корпорация (РКК) "Энергия" - оператор российского сегмента станции.

Все годы эксплуатации МКС до этого момента космонавты могли общаться с Землей только пролетая над российской территорией, а при необходимости связи вне этих зон использовали американские средства.

"Теперь мы не зависим от наших коллег и их американского сегмента", - приводятся в видео, опубликованном на канале РКК "Энергия" в YouTube ( youtu.be/cy459hNiAfQ ), слова директора департамента цифрового развития госкорпорации "Роскосмос" Константина Шадрина.

В видео говорится, что сейчас на одном витке МКС вокруг Земли, длительность которого составляет 92 минуты, связь через отечественные спутники-ретрансляторы "Луч" устанавливается дважды по полчаса. Пока задействованы два космических аппарата.

"В ближайшее время мы планируем подключить еще и третий. Таким образом из всего витка мы попробуем реализовать почти весь виток за исключением некоторого времени", - приводятся слова руководителя Центра "Бортовые и наземные радиотехнические комплексы" РКК "Энергия" Игоря Бродского.

В дальнейшем связь с Землей будет обеспечена в круглосуточном режиме, отмечается в видеоролике.

В ноябре 2019 года первый заместитель генерального директора компании "Гонец" Олег Химочко рассказал РИА Новости, что оборудование для обеспечения широкополосного канала связи российского сегмента МКС с Землей через спутники-ретрансляторы "Луч-5" доставлено на станцию и что штатное функционирование канала начнётся в 2020 году. По его словам, скорость в канале будет составлять до 105 мегабит в секунду.

В мае 2020 года космонавт Александр Скворцов сообщил, что такая система протестирована. 1 июля глава госкорпорации "Роскосмос" Дмитрий Рогозин сообщил, что такая связь будет запущена на российском сегменте до конца года.

В настоящее время орбитальная группировка спутников-ретрансляторов "Луч" насчитывает три космических аппарата - "Луч-5А", "Луч-5Б" и "Луч-5В", выведенные в космос в 2011-2014 годах. В 2024 году планируется запустить спутник "Луч-5ВМ".

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https://blogs.nasa.gov/stationreport/2020/07/29/iss-daily-summary-report-7292020/

ISS Daily Summary Report - 7/29/2020

Droplet Formation Study (DFS):

 Скрытый текст:

The crew performed the setup and initiation of recording for additional runs of the DFS investigation, followed by data archival to Blue-ray disc. Droplet Formation Studies in Microgravity (Droplet Formation Study, or more simply DFS) evaluates water droplet formation and water flow of Delta Faucet's H₂Okinetic shower head technology. To conserve water, flow rates in shower devices have been reduced, but this lower flow rate also reduces the effectiveness of these devices and often causes consumers to take longer showers, undermining the goal of using less water. Gravity's full effects on formation of water droplet size are unknown, and research in microgravity could help improve the technology, creating better performance and improved user experience while conserving water and energy.

ElectroMagnetic Levitator (EML):

 Скрытый текст:

The crew performed steps needed to remove the EML sample chamber, high speed camera, and vacuum/vent hose. Following this, they took photos to document this configuration. The EML is a 360 kg multi-user facility designed for containerless materials processing in space. It supports research in the areas of meta-stable states and phases along with the measurement of highly accurate thermophysical properties of liquid metallic alloys at high temperatures. EML can accommodate up to 18 samples, each 5 to 8 mm in size. Heating rates of up to 100 Kelvin per second can be achieved with a maximum temperature of 2,100°C.

Fluids Integrated Rack/Light Microscopy Module (FIR/LMM)/Advanced Colloids Experiment-Temperature-4 (ACE-T4):

 Скрытый текст:

The crew removed the LMM optical target and other associated CDM (Capillary-Driven Microfluidics) hardware, and installed the hardware needed to support ACE-T4 module s/n 2016. Introducing disorder to a crystalline system in a controlled way can form glass. Advanced Colloids Experiment-Temperature-4 (ACE-T-4) examines the transition of an ordered crystal to a disordered glass to determine how increasing disorder affects structural and dynamic properties. The investigation controls disorder by controlling temperature in a series of samples and observes the microscopic transition in three dimensions.

Plant Habitat-02:

 Скрытый текст:

The crew removed the growth chamber from the Plant Hab facility, removed and replaced one of the ECS (Environmental Control System) units, then reassembled the Plant Hab facility and installed it back into its rack location. Plant Hab-02 will be used to support science samples arriving on NG-14. Assessment of Nutritional Value and Growth Parameters of Space-grown Plants (Plant Habitat-02) cultivates radishes as a model plant that is nutritious and edible, has a short cultivation time, and is genetically similar to Arabidopsis, a plant frequently studied in microgravity. Developing the capability for food production in space requires understanding cultivation conditions such as intensity and spectral composition of light and the effects of the culture medium or soil. This research could help optimize plant growth in the unique environment of space, as well as evaluation of nutrition and taste of the plants.

Dragon Return Preparations:

 Скрытый текст:

In preparation for Dragon return, the crew performed a suit checkout, prepacked cargo and held a conference with the ground team. As part of the suit check, the crew donned their suits to confirm the suit fit and performed earpiece checks using Dragon audio. The crew continued to perform Dragon cargo ops throughout the day. Ground teams estimate approximately 4 hours remain to complete available cargo ops.

Progress 75P ISS Reboost:

 Скрытый текст:

This morning at 8:57 AM CT, the ISS completed a 5 minute 36 second reboost using 75P thrusters. The purpose of the reboost was to start phasing for 62S landing and 63S launch in October and increased the ISS velocity by 0.65 meters per second (m/s).

Cabin Fan Assembly 1 (CFA1) Remove and Replace (R&R):

 Скрытый текст:

CFA1 has operated continuously and exceeded its expected lifetime by nearly three times. The R&R of the fan requires equipment in the Columbus module to be removed to allow rack tilting and is subdivided into three consecutive days of tasks. Today the crew prepared the COL1D1 rack for tilting by deinstalling the EML Sample Chamber and EML High Speed Camera which were both temporarily stowed in COL1D3. Tomorrow the crew will tilt the rack to replace the cabin fan.

[VV]

В дальнейшем связь с Землей будет обеспечена в круглосуточном режиме, отмечается в видеоролике.

Каким образом, даже теоретически ?!

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https://blogs.nasa.gov/spacestation/2020/07/30/astronauts-talk-to-press-on-friday-before-crew-dragon-departure/

Astronauts Talk to Press on Friday Before Crew Dragon Departure

Mark Garcia
Posted Jul 30, 2020 at 3:26 pm


NASA astronauts (from left) Bob Behnken, Doug Hurley and Chris Cassidy are the U.S. members of the Expedition 63 crew.

Two Flight Engineers and the Expedition 63 Commander, all from NASA, will talk to journalists Friday morning before the SpaceX Crew Dragon completes its stay at the International Space Station.

Doug Hurley and Bob Behnken, NASA's first commercial crew, have been aboard the orbiting lab since May 31. They have been packing the Crew Dragon spacecraft and testing its systems to get ready for this weekend's scheduled undocking and return to Earth. NASA TV will provide continuous live coverage of their departure and splashdown activities.

The NASA station trio, including Commander Chris Cassidy, will answer questions Friday morning from a variety of reporters calling up to space. NASA TV will broadcast the Crew News Conference live beginning at 10:45 a.m. EDT.

Orbital science is still ongoing today amidst Hurley and Behnken's departure preparations. Cassidy was observing how microgravity shapes water droplets possibly improving water conservation and water pressure techniques on Earth. Even the homebound duo put in some research time studying light-manipulating materials and starting up an experimental radiation detector.

Earth observations are part of the critical research program taking place onboard the station. First-time cosmonaut Ivan Vagner photographed Earth landmarks today to understand and forecast the effects of natural and man-made catastrophes. Veteran cosmonaut Anatoly Ivanishin continued unloading the new Progress 76 cargo craft while updating the station's inventory system.

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https://blogs.nasa.gov/commercialcrew/2020/07/30/nasa-and-spacex-remain-go-for-splashdown/

NASA and SpaceX Remain GO for Splashdown

Marie Lewis
Posted Jul 30, 2020 at 10:11 pm


NASA astronauts Bob Behnken and Doug Hurley. Photo credit: SpaceX

Following a comprehensive review of the latest weather forecast in the areas surrounding each of seven potential splashdown locations, NASA and SpaceX have decided to move forward with plans to bring NASA astronauts Robert Behnken and Douglas Hurley home to Earth with a splashdown off the Florida coast on Sunday, Aug. 2, aboard the SpaceX Crew Dragon "Endeavour" spacecraft.

Teams will continue to closely monitor Tropical Storm Isaias and evaluate impacts to weather around the Florida peninsula, including the potential splashdown sites in the Gulf of Mexico and along the state's Atlantic coast. NASA and SpaceX will make a decision on a primary splashdown target approximately 6 hours before undocking Saturday.

Undocking remains scheduled for approximately 7:34 p.m. EDT Saturday, Aug. 1, and splashdown at 2:42 p.m. EDT on Sunday. This will mark the first return of a commercially built and operated American spacecraft carrying astronauts from the space station, and it will wrap up NASA's SpaceX Demo-2 mission after more than two months at the International Space Station.

The Crew Dragon spacecraft carrying Hurley and Behnken lifted off from NASA's Kennedy Space Center in Florida on May 30 and arrived at the space station the following day. The Demo-2 test flight is helping NASA certify SpaceX's crew transportation system for regular flights carrying astronauts to and from the orbiting laboratory. SpaceX is readying the hardware for the first rotational mission, which would occur following NASA certification.

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https://blogs.nasa.gov/stationreport/2020/07/30/iss-daily-summary-report-7302020/

ISS Daily Summary Report - 7/30/2020

Colloidal Clusters:

 Скрытый текст:

The crew enabled the UV (ultraviolet) illumination system for the Colloidal Clusters sample bags. UV light is used to activate the UV-curable gelling agent and terminate the experiment. Following the appropriate UV exposure time, the crew performed steps needed to close out the experiment. JAXA's Colloidal Clusters investigates the mechanism for formation of tetrahedral clusters of negatively and positively charged particles suspended in liquid. These clusters are examined and characterized after return to Earth. The clusters may be useful as building blocks of future photonic, or light-manipulating, materials.

Droplet Formation Study (DFS):

 Скрытый текст:

The crew performed the setup and initiation of recording for additional runs of the DFS investigation. The team is still discussing issues with data archival to Blue-ray disc. It's believed only a partial set of data was collected for one of the runs, but each testpoint is performed in duplicate so this is likely a minimal impact. Droplet Formation Studies in Microgravity (Droplet Formation Study, or more simply DFS) evaluates water droplet formation and water flow of Delta Faucet's H₂Okinetic shower head technology. To conserve water, flow rates in shower devices have been reduced, but this lower flow rate also reduces the effectiveness of these devices and often causes consumers to take longer showers, undermining the goal of using less water. Gravity's full effects on formation of water droplet size are unknown, and research in microgravity could help improve the technology, creating better performance and improved user experience while conserving water and energy.

ISS HAM Pass:

 Скрытый текст:

The crew participated in an ISS HAM pass with the American School of Rio de Janeiro, Rio de Janeiro, Brazil. The school, which began in 1937 in a small house in Ipanema, has since expanded to two amazing world-class campuses. They have been proud to help generations of young people find their own unique path, and today are privileged to be able to offer a once in a lifetime opportunity - a chance to talk to astronauts in space! ISS Ham Radio provides opportunities to engage and educate students, teachers, parents and other members of the community in science, technology, engineering and math by providing a means to communicate between astronauts and the ground HAM radio units.

EHS Benzene Chip Measurement System (CMS) Operations:

 Скрытый текст:

As part of the continued benzene investigation, the crew took two benzene measurements in the Lab today with the CMS reader. Results were provided to the ground. Readings to date have been below the detectable limits. The crew will continue to take samples in the LAB every other day and the frequency may be altered based on real-time indications.

In Flight Maintenance (IFM) Crew Quarters (CQ) Deck and Overhead Cleaning:

 Скрытый текст:

A USOS crewmember cleaned the Overhead and Deck CQ today. During this activity, the crew cleaned behind panels, intake and exhaust ducts, fans and airflow sensors as required.

Cabin Fan Assembly 1 (CFA1) Remove and Replace (R&R):

 Скрытый текст:

Crew continued with the second day of operations to replace the cabin fan assembly in the COL1D1 rack. Today the crew rotated the rack and performed the cabin fan assembly R&R. Prior to tilting the rack, the crew uninstalled the Light Ions Detector (LIDAL). During the rack rotation the crew encountered issues with a fastener that was no longer captive. The ground requested the crew label the damaged components. The crew was able to proceed and complete the scheduled rack rotation activities. ESA confirmed successful activation of the fan.

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Началась трансляция "ISS Expedition 63 on-orbit crew news conference with Station Commander Chris Cassidy and astronauts Doug Hurley and Bob Behnken" - youtu.be/21X5lGlDOfg

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Live Q&A with NASA Astronauts in Space

 NASA

Трансляция началась 30 минут назад

youtu.be/bhVdsCqLJho

(30:05)

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https://blogs.nasa.gov/spacestation/2020/07/31/crew-dragon-go-for-splashdown-station-science-continues/

Crew Dragon Go For Splashdown, Station Science Continues

Mark Garcia
Posted Jul 31, 2020 at 12:16 pm

NASA and SpaceX mission managers met Thursday night and are proceeding, weather permitting, with the return to Earth of two astronauts. Meanwhile, space research to improve life for humans on and off the planet kept the Expedition 63 crew busy today.

NASA astronauts ... Bob Behnken, Chris Cassidy and Doug Hurley talk to journalists on Earth. The trio answered media questions before Behnken and Hurley return to Earth.

Flight Engineers Doug Hurley and Bob Behnken are packing up to end a two-month mission aboard the International Space Station. They are scheduled to board the Crew Dragon spacecraft and undock on Saturday evening from the Harmony module's international docking adapter. The duo would splashdown on Sunday wrapping up NASA's first crewed mission since 2011. NASA TV will provide continuous coverage of the departure and Earth return activities.

The veteran astronauts also completed their science assignments today that saw studies into unique fluids, biomedicine, autonomous robotics and more. However, Commander Chris Cassidy, who is staying in space until October, was busy all-day researching water droplets, observing extreme temperatures and sequencing microbial DNA.

Hurley serviced science freezers that preserve biological samples for later analysis. He finally powered down the Astrobee free-flying robots that will soon see students competing to create the best algorithms to control the devices. Behnken finalized his work observing microgravity's effects on water droplets to improve conservation and pressure techniques.

The orbiting lab's two cosmonauts from Roscosmos, Anatoly Ivanishin and Ivan Vagner, continued their schedule of science and maintenance today. Ivanishin worked on a variety of communications gear during the morning before activating Russian radiation detectors in the afternoon. Vagner once again photographed Earth landmarks today then sampled the station's air and surfaces to analyze and identify microbes.

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https://www.militarynews.ru/story.asp?rid=1&nid=535707&lang=RU

Новый пилотируемый космический корабль США расстыкуется с МКС перед предстоящим приводнением
01.08.2020 0:00:11

Вашингтон. 1 августа. ИНТЕРФАКС - Новый американский пилотируемый корабль Crew Dragon компании SpaceX с астронавтами Дагласом Харли и Робертом Бенкеном в субботу по времени Восточного побережья США, когда в Москве уже наступит воскресенье, расстыкуется с Международной космической станцией (МКС), сообщает NASA.

Расстыковка планируется 1 августа в 19:34 по времени Восточного побережья США (2 августа в 02:34 мск). Затем через семь часов спускаемый аппарат с астронавтами должен будет совершить приводнение в Атлантике около берегов штата Флорида.

Это будет первое приводнение американского спускаемого корабля, совершенное за последние 45 лет после завершения программы полетов "Аполлонов" в 1975 году.

Первый после почти девятилетнего перерыва вслед за окончанием программы шаттлов пилотируемый космический корабль США Crew Dragon, разработанный компанией SpaceX в рамках коммерческого контракта с NASA, стартовал к МКС 30 мая.

В рамках тестового полета корабль доставил на МКС Харли и Бенкена, которые проработали там более двух месяцев вместе с российскими космонавтами Анатолием Иванишины и Иваном Вагнером и американскими астронавтом Крисом Кэссиди.

За это время Кэссиди и Бенкен совершили четыре выхода в открытый космос с борта МКС для выполнения работ по модернизации ее энергетической системы, в частности, для замены устаревших никель-водородных аккумуляторов, которые накапливают и распределяют энергию, собранную от солнечных батарей, на новые, более мощные литий-ионные.

Нынешняя миссия Crew Dragon является последним крупным испытанием корабля перед его сертификацией NASA для осуществления регулярных коммерческих пилотируемых полетов на МКС. В марте 2019 года такой же корабль совершил первый успешный испытательный полет на станцию в беспилотном режиме.

С 2011 года астронавты NASA доставляются на МКС российскими кораблями "Союз", за места на котором американское космическое агентство платит России. В частности, в мае NASA договорилось с Роскосмосом о покупке за 90,2 млн долл. одного места на "Союзе", который в октябре стартует к МКС, в связи с возможными задержками в пусках следующих миссий Crew Dragon к МКС. По данным NASA, следующий полет такого пилотируемого корабля к МКС планируется осуществить в конце сентября.

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Space to Ground: #BecauseScience: 07/31/2020

 NASA Johnson

31 июл. 2020 г.

youtu.be/DoTs3-bQRo0

(2:34)

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NASA Astronauts Robert Behnken and Douglas Hurley Are Coming Home!

 NASA

31 июл. 2020 г.

youtu.be/J3VuLKFnvlQ

(0:43)

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https://blogs.nasa.gov/commercialcrew/2020/07/31/nasas-spacex-demo-2-weather-remains-go-for-return-live-coverage-tomorrow/

NASA's SpaceX Demo-2: Weather Remains 'GO' for Return, Live Coverage Tomorrow

Tori Mclendon
Posted Jul 31, 2020 at 9:11 pm


On Monday, March 30, 2020 at a SpaceX processing facility on Cape Canaveral Air Force Station in Florida, SpaceX successfully completed a fully integrated test of critical crew flight hardware ahead of Crew Dragon's second demonstration mission to the International Space Station for NASA's Commercial Crew Program; the first flight test with astronauts onboard the spacecraft. NASA astronauts Bob Behnken and Doug Hurley participated in the test, which included flight suit leak checks, spacecraft sound verification, display panel and cargo bin inspections, seat hardware rotations, and more.

Teams from NASA and SpaceX are proceeding with preparations to bring NASA astronauts Robert Behnken and Douglas Hurley home to Earth on Sunday, Aug. 2, after receiving a weather briefing this evening from the U.S. Air Force 45th Weather Squadron.

Conditions remain "Go" at several of the needed target locations for splashdown and recovery off the Florida coast on Sunday aboard the SpaceX Crew Dragon "Endeavour" spacecraft. NASA and SpaceX will make a decision on a primary splashdown target approximately 6 hours before undocking Saturday.

Teams continue to closely monitor Hurricane Isaias and evaluate impacts to the landing sites in the Gulf of Mexico along the Florida Panhandle. Teams have several weather decision milestones ahead of and after undocking to adjust the splashdown location and time based on the forecasted conditions for recovery.

Undocking remains scheduled for approximately 7:34 p.m. EDT Saturday, Aug. 1, and splashdown at 2:42 p.m. EDT on Sunday. This will mark the first return of a commercially built and operated American spacecraft carrying astronauts from the space station, and it will wrap up NASA's SpaceX Demo-2 mission after more than two months at the International Space Station.

NASA's SpaceX Demo-2 return coverage is as follows (all times Eastern):

Saturday, Aug. 1

• 9:10 a.m. - SpaceX Dragon Demo-2 Farewell Ceremony aboard the International Space Station (ceremony begins about 9:15 a.m.)
• 5:15 p.m. - NASA TV undocking coverage begins for the 7:34 p.m. undocking (NASA Television will have continuous coverage from undocking to splashdown)

...

The Crew Dragon spacecraft carrying Hurley and Behnken lifted off from NASA's Kennedy Space Center in Florida on May 30 and arrived at the space station the following day. The Demo-2 test flight is helping NASA certify SpaceX's crew transportation system for regular flights carrying astronauts to and from the orbiting laboratory. SpaceX is readying the hardware for the first rotational mission, which would occur following NASA certification.

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 NASA @NASA 20 ч. назад

HATCH CLOSURE: The hatch closes on the Dragon-side to get the spacecraft sealed up and ready for departure.
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20 ч. назад

SPACE STATION HATCH CLOSURE: International @Space_Station commander @Astro_SEAL closes the hatch on our orbiting laboratory, creating an area between the spacecraft and station known as 'the vestibule'.
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VESTIBULE DEPRESSURIZATION: Valves remove the air from Dragon, taking it near vacuum.
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20 ч. назад

GO/NO GO FOR UNDOCKING: Teams on the ground assess readiness of the spacecraft, the crew, and the @Space_Station for Dragon's departure.
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SEPARATION: Crew Dragon autonomously undocks from the @Space_Station and performs a departure burn to move away from our orbiting laboratory.
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DEPARTURE BURNS: Immediately after separation, Dragon performs a series of orbit-lowering maneuvers that line up its ground track with the planned landing location.
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Началась трансляция церемонии прощания экипажей Exp 63 и DM-2 - youtu.be/21X5lGlDOfg