The International Space Station and Cygnus flight control teams are proceeding toward capture at approximately 5:20 a.m. EDT. Orbital ATK reports all spacecraft systems are ready for the final stages of rendezvous and space station flight controllers report the orbiting outpost is ready for the commercial spacecraft’s arrival.
The spacecraft will deliver scientific investigations including those that will study microbiology, physics, materials science, plant biology, liquid separation and more.
NASA Television coverage of capture has begun. Watch live online at www.nasa.gov/live.
A timeline of remaining Cygnus and space station activities for the earliest capture attempt is below:
The Cygnus space freighter from Orbital ATK is closing in on the International Space Station ready to deliver 7,400 pounds of cargo Thursday morning. The Expedition 55 crew members are getting ready for Cygnus’ arrival while also helping researchers understand what living in space does to the human body.
NASA TV is set to begin its live coverage of Cygnus’ arrival at the orbital lab Thursday at 3:45 a.m. EDT. Flight Engineer Scott Tingle will be inside the Cupola and command the Canadarm2 robotic arm to reach out and capture Cygnus at 5:20 a.m. Robotics engineers at Mission Control will then take over and remotely install Cygnus to the Earth-facing port of the Unity module later Thursday morning.
The crew started its day collecting blood and urine samples for a pair of experiments, Biochemical Profile and Repository, looking at the physiological changes taking place in astronauts. Those samples are stowed in science freezers for return to Earth so scientists can later analyze the proteins and chemicals for indicators of crew health.
Another pair of experiments taking place today is looking at bone marrow, blood cells and the cardiovascular system. The Marrow study, which looks at white and red blood cells in bone marrow, may benefit astronaut health as well as people on Earth with reduced mobility or aging conditions. The Vascular Echo experiment is observing stiffening arteries in astronauts that resembles accelerated aging.
The Expedition 55 crew members had a full complement of work today as they conducted microgravity research, trained to capture a resupply ship and prepared for a June spacewalk.
Astronaut Norishige Kanai explored how living and working in space affects everything from fluid physics to the human body today. He first set up hardware to visualize how water atomizes in microgravity possibly improving the production of spray combustion engines. Next, he researched how spaceflight is impacting his brain structure and function, motor control, and multi-tasking abilities.
Later he joined fellow Flight Engineers Scott Tingle and Ricky Arnold to practice the robotics techniques necessary to capture the Orbital ATK Cygnus resupply ship. The trio trained on a computer to simulate the operation of the Canadarm2 when it reaches out and grapples Cygnus on Thursday.
The commercial space freighter is due to deliver over 7,400 pounds of crew supplies, station hardware and science experiments when it arrives Thursday at 5:20 a.m. EDT. NASA TV will broadcast live the approach, rendezvous and capture of Cygnus beginning at 3:45 a.m.
NASA Flight Engineer Drew Feustel worked on U.S. spacesuits today ahead of the next spacewalk planned for June 14. He scrubbed the spacesuit cooling loops, collected water samples and organized tools in the Quest airlock.
The veteran spacewalker has a total of eight spacewalks having worked in the vacuum of space for nearly 55 hours. He will partner with Arnold, who has four spacewalks for over 25 hours, June 14 to install high definition cameras on the Harmony module.
The cargo ship will rendezvous with the International Space Station on Thursday, May 24. Expedition 55 Flight Engineer Scott Tingle will grapple the spacecraft at approximately 5:20 a.m. EDT, backed by Ricky Arnold, and Drew Feustel will monitor Cygnus systems during its approach. They will use the space station’s robotic Canadarm2 to take hold of the Cygnus, dubbed the S.S. James “J.R.” Thompson. After Cygnus’ capture, ground controllers will command the robotic arm to rotate and install Cygnus onto the station’s Unity module. It is scheduled depart the space station in mid-July.
Live coverage of the rendezvous and capture will air on NASA Television and the agency’s website beginning at 3:45 a.m. Thursday, May 24. Installation coverage is set to begin at 7:30 a.m.
Science investigations aboard Cygnus on their way to the space station also include commercial and academic payloads in myriad disciplines, including:
The Ice Cubes Facility, the first commercial European opportunity to conduct research in space, made possible through an agreement with ESA (European Space Agency) and Space Applications Services.
The Microgravity Investigation of Cement Solidification (MICS) experiment is to investigate and understand the complex process of cement solidification in microgravity with the intent of improving Earth-based cement and concrete processing and as the first steps toward making and using concrete on extraterrestrial bodies.
Three Earth science CubeSats
RainCube (Radar in a CubeSat) will be NASA’s first active sensing instrument on a CubeSat that could enable future rainfall profiling missions on low-cost, quick-turnaround platforms.
TEMPEST-D (Temporal Experiment for Storms and Tropical Systems Demonstration) is mission to validate technology that could improve our understanding of cloud processes.
CubeRRT (CubeSat Radiometer Radio Frequency Interference Technology) will seek to demonstrate a new technology that can identify and filter radio frequency interference, which is a growing problem that negatively affects the data quality collected by radiometers, instruments used in space for critical weather data and climate studies.
Orbital ATK’s Antares rocket carrying the Cygnus cargo spacecraft lifted off at 4:44 a.m. EDT and is on its way to the International Space Station. At the time of launch, the space station was traveling at an altitude of about 250 miles, over the central south Atlantic.
An hour and half after launch, commands will be given to deploy the spacecraft’s UltraFlex solar arrays. Launch coverage will resume on NASA TV at http://www.nasa.gov/live at about 5:45 a.m. for solar array deployment, which is expected to last about 30 minutes.
A post-launch news conference will follow and is scheduled to begin on NASA TV at approximately 7:00 a.m.
The Orbital ATK Cygnus cargo craft that will resupply the Expedition 55 crew on the International Space Station rolled out to its launch pad Thursday night. Cygnus is now targeted to blast off atop the Antares rocket Monday at 4:39 a.m. EDT from Wallops Flight Facility in Virginia. NASA TV will begin its live broadcast of the launch Monday at 4 a.m.
Orbital ATK and NASA managers moved Cygnus’ launch to no earlier than Monday to support further pre-launch inspections and more favorable weather conditions. Monday shows an 80% probability of acceptable weather for launch.
Cygnus is packed with 7,400 pounds of new science experiments, crew supplies and space station hardware. It is scheduled to arrive Thursday at the space station for its robotic capture at 5:20 a.m. NASA TV will cover the approach and rendezvous activities starting at 3:30 a.m.
Three NASA astronauts, Scott Tingle, Ricky Arnold and Drew Feustel, have trained for weeks to get ready for Cygnus’ arrival on Thursday. Tingle will be operating the Canadarm2 from inside the Cupola and command the robotic arm to grapple Cygnus. Arnold will back him up on the robotics controls and Feustel will monitor Cygnus and it systems during its approach. Robotics engineers on the ground will then remotely install the commercial space freighter on the Earth-facing port of the Unity module later Thursday morning.
One of the new experiments being delivered aboard Cygnus to the orbital laboratory will study atoms frozen to a temperature 10 billion times colder than deep space. The Cold Atom Lab will observe the quantum phenomena possibly leading to advanced spacecraft navigation techniques and quantum sensors that can detect gravitational and magnetic fields.
The Expedition 55 crew on board the International Space Station has been working hard to prepare for Wednesday’s spacewalk, and they’ll still have a lot of difficult work ahead of them when Flight Engineers Ricky Arnold and Drew Feustel head outside the airlock. If you’ve ever wondered what makes spacewalks such a big deal, check out chapter 17 of the new NASA ebook, The International Space Station: Operating an Outpost in the New Frontier. The book, which was written by space station flight directors, is now available to download for free at… https://go.usa.gov/xQbvH.
Chapter 17: Extravehicular Activities – Building a Space Station Planning and Training Extravehicular Activity Tasks
On paper, the tasks needed for International Space Station assembly—e.g., driving a bolt, carrying something from one place to another, taking off a cover, plugging in an electrical cord—might not seem too complex. However, conducting such tasks while wearing a spacesuit with pressurized gloves (possibly with one’s feet planted on the end of a long robotic arm), working in microgravity, maneuvering around huge structures while moving massive objects, having time constraints based on spacesuit consumables, and using specialized equipment and tools made these tasks and EVAs challenging.
Tasks such as working with cables or fluid hoses are hand-intensive work—fingers and forearms get quite a workout in pressurized gloves that feel like stiff balloons and resemble oversized garden gloves. Added to these complexities, space “walking” is mostly done with the hands. The astronaut grasps handholds and maneuvers the combination of the Extravehicular Mobility Unity, Simplified Aid for EVA Rescue, tools, and himself or herself around the structure.
The team on the ground has to come up with a choreography and order of events for the EVA, in advance. The flight control team creates the EVA timelines based on a high-level prioritized list of tasks determined by ISS management (e.g., move a specific antenna, install a particular avionics box). The flight controllers start with the top ISS priority task and assesses the other tasks that can fit into the EVA based on multiple factors such as how long the tasks will take based on past experiences, whether both crew members need to work together, task location on the ISS, how much equipment will fit into the airlock, the tools required, crew experience level, and the level of crew effort to complete the task. A task that might fit (but only if the team is efficient) is put on the list as a “get-ahead” task.
Real-time discussions in Mission Control of EVA time remaining, crew fatigue, and suit consumables could allow the get-ahead task to be accomplished in addition to the planned tasks. Some tasks are performed on a “clock”; i.e., if power is removed from an item, it might get cold and need heater power in a matter of hours or sometimes within minutes to prevent damage. While a timeline is still in a draft version, the team conducts testing as required to prove out the operations. The team then trains the crew and refines and/or changes the timeline, sometimes up to the day of the EVA.
Two NASA astronauts are finalizing their preparations ahead of Wednesday morning’s spacewalk to swap thermal control gear outside the International Space Station. The Expedition 55 crew also worked on biomedical operations, radiation checks and Cygnus communications gear.
Flight Engineers Ricky Arnold and Drew Feustel checked their tools and reviewed their procedures one last time today before tomorrow’s spacewalk. The pair will work for about 6.5 hours swapping a pair of thermal control devices, known as Pump Flow Control Subassemblies, which control the circulation of ammonia keeping external station systems cool.
The veteran spacewalkers will set their spacesuit batteries to internal power Wednesday at about 8:10 a.m. EDT signaling the official start of the 210th spacewalk in space station history. NASA TV will begin its live broadcast of the activities beginning at 6:30 a.m.
Science and maintenance are always ongoing aboard the orbital lab even despite the spacewalk and cargo mission readiness activities. Feustel and Japanese astronaut Norishige Kanai collected their biological samples this morning and stowed them in a science freezer for later analysis. Cosmonaut Oleg Artemyev explored cardiac bioelectric activity at rest. Commander Anton Shkaplerov collected radiation measurements from dosimeters he retrieved from the orbital lab’s U.S. segment.
Orbital ATK is getting its Cygnus space freighter ready for launch Sunday at 5:04 a.m. to deliver science, supplies and hardware to the Expedition 55 crew. Astronaut Scott Tingle checked out command and communications gear that will be used when Cygnus arrives four days later on Thursday for capture at 5:20 a.m.
Week three. The time is flying by. The SpaceX Dragon cargo craft is 80% loaded. This has been a big effort for the crew as well as our specialists on the ground. Tracking a large matrix of storage locations, special requirements and loading locations is a nightmare, but our team on the ground made it look easy. Our crew is becoming more versatile and now flexes between operations and science tasking with what is seemingly just a flick of a switch. I had the opportunity to set up our Microgravity Science Glovebox for the Trans-Alloy experiment. Unfortunately, the team had to abort the science run due to high temperatures in the glovebox. Tomorrow morning, we will remove the science hardware, remove the cooling plugs, and set it all back up again. Reworks like this don’t bother me, and I am happy to do what is needed to reach success. We are on, and sometimes beyond, the frontline of science where lines between science, engineering and operations become very blurry and complex. We have to be flexible! The International Space Station (ISS) has now entered its 20th year of operations. What an engineering marvel. As with any aging program, we have accumulated an expanse of experience operating in space. As an engineering community, we are much smarter about operating in space than we were 30 years ago when we designed ISS. I will be very encouraged to see our community apply lessons learned as we create new systems to require less training, less maintenance and less logistics.
I’ve managed to take a few moments over the last week to take some pictures of Earth. Sunrises are the most beautiful part of the day. Out of total darkness, a thin blue ring begins to form that highlights the Earth’s circumference. At this moment, you can really see how thin our atmosphere is. Within a few minutes, the sun rises on station and highlights the docked vehicles while Earth just below is still in night’s shadow. A few minutes later, ISS is over brightly-lighted ground and water, providing a fresh view of the features below. The promise of a new day is real!
The crew managed to have a movie night last night, which provided some good fun and camaraderie. This was a welcome break from the busy routine we endure. Unfortunately, today, I woke to hear that astronaut and moonwalker John Young had passed away. And I also learned that a good friend from the Navy had passed away after a challenging battle with cancer. When he learned he had cancer two years ago, he decided to ignite the afterburners and live every day like there was no tomorrow…he was just as successful in his final days as he was in his previous 50 years. To two remarkable American heroes, thank you for all you have sacrificed and thank you for a lifetime of inspiration. Fair winds and following seas.
Veteran astronauts Ricky Arnold and Drew Feustel will embark on the 210th spacewalk Wednesday at the International Space Station to swap out thermal control gear. The experienced spacewalkers have a combined 10 spacewalks between them with Feustel having conducted seven and Arnold with a total of three.
Flight Engineer Scott Tingle assisted the duo today getting spacewalk tools ready and recharging the U.S. spacesuits inside the U.S. Quest airlock. Tingle and Japanese astronaut Norishige Kanai will assist the spacewalkers in and out of the airlock Wednesday and guide the duo during their tasks.
Orbital ATK will launch their Cygnus space freighter on Sunday at 5:04 a.m. EDT to resupply the Expedition 55 crew just four days after Feustel and Arnold complete their fourth spacewalk together. After a four-day trip in space, Cygnus will deliver crew supplies, station hardware and experiments exploring a variety of subjects including life science and space physics.
Arnold and Tingle practiced the robotics maneuvers today on a computer they will use to capture Cygnus after its approach and rendezvous with the station on May 24 at 5:20 a.m. NASA TV will broadcast the Cygnus launch and capture activities live at the orbital laboratory.