Archivos de la categoría ISS News

U.S. Cargo Poised for Launch; Robotics, Health Checks for Crew

A U.S. rocket stands at its launch pad ready to launch an advanced space toilet and new science experiments toward the International Space Station tonight. Back on orbit, the Expedition 63 trio worked on robotics, health checks and housecleaning today.

NASA and its commercial partner Northrop Grumman are counting down to tonight’s liftoff of the Cygnus space freighter atop an Antares rocket at 9:38 p.m. EDT from Virginia. Cygnus is packed with nearly 8,000 pounds of crew supplies and station gear due for a robotic capture on Sunday at 6:10 a.m.

Commander Chris Cassidy and Flight Engineer Ivan Vagner will be at the robotics workstation Sunday morning monitoring the approach and rendezvous of Cygnus. Cassidy will then command the Canadarm2 robotic arm to grapple Cygnus when it reaches a point about 10 meters from the station. Afterward, engineers on the ground will take over the Canadarm2 and remotely install Cygnus to the Unity module where it will stay until mid-December.

During Thursday morning, Cassidy installed a new robotic 4K camera that looks outside a Kibo laboratory module window at the Earth below. Called Avatar-X, the camera demonstrates how users on the ground can remotely control the camera to view Earth or practice telemedicine in remote locations.

Next, Cassidy strapped himself into an exercise bike with assistance from Vagner for a periodic health check. Vagner spent the rest of the day on photography inspections and plumbing tasks. Veteran cosmonaut Anatoly Ivanishin took the morning off before spending the afternoon cleaning the ventilation system and researching how multi-cultural crews communicate.

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Mark Garcia

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U.S. Cargo Mission Nears Launch; More Leak Checks and Research

The Expedition 63 crew continues preparing for Sunday’s scheduled space delivery of nearly 8,000 pounds of supplies and gear aboard Northrop Grumman’s Cygnus space freighter. As usual, advanced space science rounded out the day’s activities inside the International Space Station. The crew also continues work to try and isolate the precise location of an air leak that was recently isolated to the Zvezda Service Module.

An Antares rocket stands at its launch pad in Virginia ready to carry the Cygnus resupply ship to space when it launches on Thursday at 9:38 p.m. EDT. About nine minutes later, Cygnus will reach Earth orbit heading towards the space station for a Sunday arrival and robotic capture at 6:10 a.m.

Commander Chris Cassidy and Flight Engineer Ivan Vagner continued practicing their robotics skills Wednesday afternoon on a computer. The duo will be on deck inside the cupola Sunday morning ready to command the Canadarm2 robotic arm to reach out and grapple Cygnus. Ground controllers will take over the Canadarm2 afterward and remotely install Cygnus to the Unity module about two hours later.

Cassidy started the day working inside Japan’s Kibo laboratory module setting up experiment hardware that enables science to take place outside the orbiting lab. The veteran astronaut also spent a few moments on light plumbing duty as he serviced the urine processing assembly located in the Tranquility module.

The two Russian cosmonauts, including three-time station resident Anatoly Ivanishin, focused on their complement of space research and lab maintenance throughout the day. The duo joined each other first for a space communications study utilizing a variety of photography and audio hardware. Next, Ivanishin moved to narrow the source of an air leak utilizing an ultrasonic leak detector. Vagner checked radiation measurements then swapped camera lenses and activated hardware for a pair of Earth observation studies.

UPDATE: Roscosmos has released new information, further isolating the leak location to the transfer chamber in the Zvezda Service Module. Additional leak detection operations will continue using the ultrasonic leak detector.

In terms of design, the Zvezda Service Module consists of four sections: three pressurized (Transfer Compartment, Working Compartment and Transfer Chamber) as well as the unpressurized Assembly Compartment housing the integrated propulsion unit.

The leak, which has been investigated for several weeks, poses no immediate danger to the crew at the current leak rate and only a slight deviation to the crew’s schedule.

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Mark Garcia

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Crew Continues Troubleshooting as Tests Isolate Small Leak

Late Monday night, the Expedition 63 crew was awakened by flight controllers to continue troubleshooting a small leak on the International Space Station that appeared to grow in size. Ground analysis of the modules tested overnight have isolated the leak location to the main work area of the Zvezda Service Module. Additional work is underway to precisely locate the source of the leak.

The leak, which has been investigated for several weeks, poses no immediate danger to the crew at the current leak rate and only a slight deviation to the crew’s schedule.

NASA astronaut and station commander Chris Cassidy and Roscosmos cosmonauts Anatoly Ivanishin and Ivan Vagner were instructed to move into the Russian segment to collect data at various locations in the Russian modules. The size of the leak identified overnight has since been attributed to a temporary temperature change aboard the station with the overall rate of leak remaining unchanged.

Previous leak checks were conducted in the modules in the U.S. segment of the station.

One by one, the crew closed hatches between Zvezda’s aft and forward sections and Zvezda’s passageways to the Pirs Docking Compartment and the Poisk module while using an ultrasonic leak detector to collect data. Throughout the night, pressure measurements were taken by U.S. and Russian specialists to try to isolate the source of the leak. At the completion of the overnight checks, the crew opened hatches once again between the U.S. and Russian segments and resumed regular activities.

The crew is preparing for this weekend’s arrival of the uncrewed Northrop Grumman Cygnus cargo craft which is scheduled for launch Thursday night from the agency’s Wallops Flight Facility, Virginia, as well as the upcoming launch of the next trio of residents for the station. NASA astronaut Kate Rubins and cosmonauts Sergey Ryzhikov and Sergey Kud-Sverchkov are at the Baikonur Cosmodrome in Kazakhstan, preparing for launch to the complex on Oct. 14.

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Mark Garcia

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Weather Delays U.S. Cargo Mission; Crew Back to Work After Leak Test

A U.S. cargo mission will wait a couple of extra days for weather to clear before launching to resupply the International Space Station this week. Meanwhile, the Expedition 63 crew has resumed standard operations following a leak test over the weekend.

Scattered thunderstorms and rain are predicted at the Wallops Flight Facility in Virginia where Northrop Grumman’s Cygnus resupply ship was originally targeted for liftoff Tuesday night. Mission managers rescheduled Cygnus’ launch for Thursday at 9:38 p.m. EDT setting its arrival and robotic capture at the station for Sunday at 5:20 a.m.

NASA astronaut Chris Cassidy and cosmonaut Ivan Vagner practiced their robotics skills on a computer today to get ready to capture Cygnus with the Canadarm2 robotic arm on Sunday morning. Cassidy will lead the capture activities while Vagner monitors the U.S. spacecraft’s approach and rendezvous.

NASA TV will broadcast live the launch and capture activities of the Cygnus space freighter. It will arrive at the station packed with nearly 8,000 pounds supplies and gear including an advanced space toilet and brand-new science experiments.

Veteran cosmonaut Anatoly Ivanishin once again opened up the Combustion Integrated Rack and replaced fuel bottles to support fuel and flames studies inside the research device. He then spent the rest of the day servicing laptop computers and life support systems.

The three-member crew exited their isolation in the Russian segment on Monday morning after a weekend of leak tests and resumed normal operations. Ground teams will analyze the leak test data in their ongoing work to determine the source of the increased leak rate at the station.

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Mark Garcia

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More Leak Checks as Crew Spends Weekend in Russian Segment

As part of ongoing work to isolate the source of a slight increase above the standard cabin air leak rate, the Expedition 63 crew will once again spend the weekend inside the station’s Russian segment. All the space station hatches will be closed this weekend so mission controllers can again monitor the air pressure in each module with the goal of localizing the source of the increased rate. The test presents no safety concern for the crew. Commander Chris Cassidy and his crewmates Ivan Vagner and Anatoly Ivanishin will stay in the Zvezda service module from Friday night into Monday morning.

The crew will spend Friday gathering items for the weekend isolation before closing hatches throughout the station at the conclusion of their crew work day.

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Mark Garcia

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