Engineers on the ground have begun powering up the Alpha Magnetic Spectrometer’s (AMS) thermal system following a successful repair spacewalk over the weekend. The Expedition 61 astronauts are now preparing a U.S. cargo craft for its departure at the end of the week.
It took four spacewalks over three months to restore and upgrade thermal operations on the AMS. Astronauts Andrew Morgan and Luca Parmitano wrapped up the complex repair job on Saturday for the 8-year-old cosmic particle detector. Soon after the spacewalk, payload controllers reported stable cooling operations on the AMS, and are continuing to monitor its thermal conditions. The AMS will soon resume its search for evidence of dark matter and antimatter once the system checkouts are complete.
The crew are now turning their attention to packing Northrop Grumman’s Cygnus resupply ship with trash and discarded hardware. Robotics controllers in Mission Control will command the Canadarm2 robotic arm to release Cygnus on Friday at 9:35 a.m. EST after 88 days attached to the Unity module. The private cargo carrier will reenter Earth’s atmosphere over the South Pacific for a fiery, but safe disposal.
NASA Flight Engineers Jessica Meir and Christina Koch started Monday on housecleaning tasks. They were joined by Morgan and Parmitano cleaning fans and filters and disinfecting surfaces containing microbes and condensation.
Cosmonaut Alexander Skvortsov is getting the Soyuz MS-13 crew ship ready for its return to Earth on Feb. 6. He will parachute to a landing in Kazakhstan with Koch and Parmitano just three and half hours after undocking from the Poisk module. Koch will have lived in space continuously for 328 days on her first mission, second only to former astronaut Scott Kelly who lived in space 340 days for the single longest spaceflight by a U.S. astronaut.
Expedition 61 crew members Andrew Morgan of NASA and Luca Parmitano of ESA (European Space Agency) concluded their spacewalk at 1:20 p.m. EST. During the 6 hour, 16 minute spacewalk, the two astronauts successfully completed leak checks for the cooling system on the Alpha Magnetic Spectrometer (AMS) and opened a valve to being pressurizing the system. Preliminary testing shows AMS is responding as expected.
Ground teams will work over the next several days to fill the new AMS thermal control system with carbon dioxide, allow the system to stabilize, and power on the pumps to verify and optimize their performance. The tracker, one of several detectors on AMS, should be collecting science data again before the end of next week. The upgraded cooling system is expected to support AMS through the lifetime of the space station.
AMS is a joint effort between NASA and the Department of Energy’s Office of Science and is led by Principal Investigator Samuel Ting, a Nobel laureate from the Massachusetts Institute of Technology. The AMS team includes some 600 physicists from 56 institutions in 16 countries from Europe, North America and Asia. AMS has been capturing high-energy cosmic rays to help researchers answer fundamental questions about the nature of antimatter, the unseen “dark matter” that makes up most of the mass in the universe, and the even-more-mysterious dark energy that is speeding up the expansion of the cosmos.
The astronauts also completed an additional task to remove degraded lens filters on two high-definition video cameras.
This was the fourth spacewalk by Morgan and Parmitano to repair the spectrometer and the 227th in support of station assembly, maintenance and upgrades. For Morgan, it was the seventh spacewalk of his career, for a total of 45 hours and 48 minutes, and the sixth for Parmitano, with a total of 33 hours and 9 minutes, who will return to Earth Feb. 6 in a Russian Soyuz spacecraft to complete a six-and-a-half month mission on the outpost. Spacewalkers have now spent a total of 59 days 12 hours and 26 minutes working outside the station. This was also the ninth spacewalk for the Expedition 61 crew, more than in any other increment in the history of the station.
Two astronauts switched their spacesuits to battery power this morning at 7:04 a.m., EST aboard the International Space Station to begin a spacewalk planned to last about six-and-a-half hours. NASA Flight Engineer Andrew Morgan and Expedition 61 Commander Luca Parmitano of ESA (European Space Agency) will venture outside the International Space Station to complete repairs on a cooling system for the Alpha Magnetic Spectrometer (AMS), a cosmic ray detector. The duo will conduct leak checks for the spectrometer’s refurbished cooling lines and complete the work to resume operations of the cosmic ray detector.
Morgan is designated extravehicular crewmember 1 (EV 1), wearing the suit with red stripes, and with the helmet camera labeled #20. Parmitano is designated extravehicular crew member 2 (EV 2), wearing the suit with no stripes, and with helmet camera #18.
During the first three spacewalks in the complex series to repair the AMS, the astronauts carefully prepared the AMS and positioned materials, installed the upgraded cooling system, completed the power and data cable connection for the system. The intricate connection work required making a clean cut for eight existing stainless steel tube cooling lines connected to the AMS then connecting it to the new system through a process of metalworking known as swaging. Following the third spacewalk, the flight control team on Earth initiated power-up and confirmed the new system was receiving power and data.
In addition to revitalizing an important piece of scientific equipment, the process of creating the tools and procedures for these spacewalks is preparing teams for the types of spacewalks that may be required on Moon and Mars missions.
Expedition 61 NASA Flight Engineer Andrew Morgan and Commander Luca Parmitano of ESA (European Space Agency) will begin a spacewalk outside of the International Space Station at about 6:50 a.m. EST Saturday, Jan. 25. NASA Television coverage of the spacewalk will begin at 5:30 a.m.
This will be the ninth spacewalk for the Expedition 61 crew, more than in any other increment in the history of the station. The two astronauts will venture outside the International Space Station for the last planned spacewalk in a series to repair the Alpha Magnetic Spectrometer (AMS), a cosmic ray detector.
These spacewalks are considered the most complex of their kind since the Hubble Space Telescope servicing missions. The AMS originally was designed for a three-year mission and, unlike Hubble, was not designed to be serviced once in space. More than 20 unique tools were designed for the intricate repair work, which included cutting and splicing of eight cooling tubes to connect to a new cooling system, and connecting a myriad of power and data cables.
Morgan and Parmitano were joined by NASA Flight Engineers Jessica Meir and Christina Koch for a final procedures review with mission controllers on the ground. Meir and Koch will operate the Canadarm2 robotic arm carefully making fine-tuned maneuvers to assist the spacewalkers at the AMS worksite.
Meir and Koch began their workday by performing scans of their neck, arm, leg and feet muscles with an ultrasound device. The scans are downlinked to doctors studying how weightlessness affects the biochemical properties of muscles. The pair also collected their blood samples and stowed them in a science freezer for the human research study. Insights my impact health strategies on future long-term space missions.
Cosmonauts Alexander Skvortsov and Oleg Skripochka spent Friday morning on a Russian digestion study today scanning their stomachs with another ultrasound device before and after breakfast. They split up in the afternoon working on a variety of station hardware maintenance and crew departure activities.
The International Space Station is orbiting higher today as three Expedition 61 crewmates get ready to return to Earth in two weeks. Meanwhile, two astronauts are finalizing preparations for a spacewalk early Saturday.
Russia’s Progress 74 cargo craft fired its engines twice boosting the space station’s altitude Thursday morning. The orbital adjustment sets up the correct trajectory for the undocking and landing of the Soyuz MS-13 crew ship on Feb. 6.
The Soyuz MS-13 will be commanded by Alexander Skvortsov returning home with astronauts Christina Koch and Luca Parmitano. The trio will parachute to a landing in Kazakhstan at 4:14 a.m. EST (3:14 p.m. Kazakh time). Koch will have lived in space continuously for 328 days, second only to U.S. astronaut Scott Kelly with 340 days.
The third spacewalk of January 2020 is set to begin Saturday at 6:50 a.m. EST with live NASA TV coverage getting under way at 5:30 a.m. Parmitano with NASA Flight Engineer Andrew Morgan will complete the complex thermal repairs on the Alpha Magnetic Spectrometer, a dark matter and antimatter detector.
Koch and fellow NASA astronaut Jessica Meir will assist the spacewalkers with the Canadarm2 robotic arm and are getting up to speed with the fine-tuned robotics maneuvers. They were joined by Morgan and Parmitano as the quartet reviewed spacewalk tasks and procedures.
The Expedition 61 spacewalking team aboard the International Space Station is taking a light-duty day ahead of this weekend’s excursion. Meanwhile, the Russian space residents researched human biology and prepared for a crew departure early next month.
Astronauts Andrew Morgan and Luca Parmitano took it easy on Tuesday, relaxing before they begin a six-hour spacewalk on Saturday at 6:50 a.m. EST to repair a cosmic ray detector. The duo began organizing their spacewalk tools, custom-designed for the unique job, just after lunch today. NASA TV will start its live broadcast of the spacewalk at 5:30 a.m.
NASA Flight Engineers Jessica Meir and Christina Koch spent an hour today reviewing Canadarm2 robotics procedures they will use to assist Saturday’s spacewalkers. Meir and Koch also spent the majority of the day relaxing, having completed two spacewalks in less than a week on Monday.
The Russian duo, cosmonauts Alexander Skvortsov and Oleg Skripochka explored ways to maximize the effectiveness of space exercise. They also studied wearing and operating a specialized suit, the Lower Body Negative Pressure suit, which counteracts the upward flow of body fluids caused by microgravity.
Skvortsov is also packing the Soyuz MS-13 crew ship that will return him, Koch and Parmitano to Earth on Feb. 6. The trio will undock and parachute to a landing in Kazakhstan. Koch will have accumulated 328 consecutive days in space upon landing second only to U.S. astronaut Scott Kelly with 340 days.
The Expedition 61 astronauts have one more spacewalk planned this weekend and they will finish the repair of a cosmic ray detector. This will be the ninth spacewalk for the crew, more than in any other increment in the history of the International Space Station.
NASA astronauts Jessica Meir and Christina Koch have turned their attention from Monday’s spacewalk to help two crewmates going on a very different spacewalk on Saturday. The pair completed a spacewalk yesterday upgrading power systems on the Port-6 truss structure.
The duo will set their U.S. spacesuits to internal power Saturday at 6:50 a.m. EST signifying the official start of their spacewalk. NASA TV begins its live broadcast of the planned six-hour AMS repair excursion at 5:30 a.m.
Meir and Koch will be getting up to speed this week with the Canadarm2 robotics procedures necessary to assist Morgan and Parmitano during Saturday’s spacewalk. The quartet gathered together Tuesday afternoon and began reviewing the spacewalk plan with specialists in Mission Control.
The Expedition 61 crew split its time today between upcoming spacewalk preparations and continuous microgravity research. SpaceX is also preparing for a final test of its commercial crew ship before it launches humans.
The International Space Station is bustling with activity as two astronauts keep their U.S. spacesuits ready for another spacewalk set for Monday at 6:50 a.m. EST. NASA Flight Engineers Jessica Meir and Christina Koch will wrap up installing new lithium-ion batteries upgrading the orbiting lab’s power systems. NASA TV will start its live coverage at 5:30 a.m.
The spacewalking duo also had time for science work in their busy schedule today. Koch provided inputs on how spaceflight is impacting her cognition and documented her meals for a nutrition study. Meir also documented her nutritional intake before researching how flames spread in space.
The Commercial Crew Program is set for a critical milestone as SpaceX readies its Dragon crew ship for major test. The uncrewed Crew Dragon vehicle will blast off atop a Falcon 9 rocket on Saturday at 8 a.m. and demonstrate its ability to safely escape in the event of a launch failure.
The Expedition 61 crew is fresh off the first spacewalk of 2020 and preparing for two more before the end of the month. Meanwhile, the International Space Station residents continue ongoing microgravity research and life support maintenance.
NASA spacewalkers Jessica Meir and Christina Koch successfully installed two new lithium-ion batteries on Wednesday that store and distribute power collected from solar arrays on the station’s Port-6 truss structure. They will finish the battery replacement work during another six-and-a-half-hour spacewalk scheduled for Monday at 6:50 a.m. EST. NASA TV begins its live coverage of the spacewalk activities at 5:30 a.m.
The third spacewalk is planned for Jan. 25 with astronauts Andrew Morgan and Luca Parmitano. They will finish the complex thermal repair work they began last year on the Alpha Magnetic Spectrometer, an astrophysics device searching for evidence of antimatter and dark matter.
All four astronauts met in the afternoon and called down to Mission Control for a briefing with spacewalk specialists. The quartet had a routine discussion with the engineers about spacewalking gear and procedures.