Direct Current Switching Unit (DCSU) 1 Remote Bus Isolator (RBI) 1 Trip Status: Friday evening and into the weekend, Flight Controllers worked to successfully restore power to the systems normally powered by the 1B channel. In review of telemetry, the ground team revealed indications that the Sequential Shunt Unit (SSU) 1B may not be able …
The six-member Expedition 45 crew paused for a minute of silence today in tribute to the victims of Friday’s terrorist attacks in Paris. Flight Engineer Kjell Lindgren bowed his head in the middle of experiment work while Commander Scott Kelly said the crew “was shocked and saddened” by the events. Engineers continued to troubleshoot station …
Direct Current Switching Unit (DCSU) 1B Remote Bus Isolator (RBI) 1 Trip – At ~11:55am CST DCSU 1B RBI 1 experienced a trip on Friday taking all power from the 1B Power Channel. Numerous systems were affected including core avionics. Command and Control (C&C) and Guidance Navigation & Control (GNC) Multiplexer/Demultiplexers (MDMs) automatically transitioned to …
The Expedition 45 crew is wrapping up the work week on biomedical science and Cygnus mission preparations. The orbital residents also worked maintenance throughout the numerous modules inside the International Space Station. Flight Engineers Kjell Lindgren and Kimiya Yui, who both have been in space over 100 days, checked their vision and blood pressure for …
Today’s post is from William Woods, a doctoral candidate in Electrical Engineering at Stanford University. He investigates radioscience and remote sensing, with a focus on signal processing for the radioscience experiment (REX) onboard New Horizons. He studies both engineering and science under Dr. Ivan Linscott and Dr. Howard Zebker at Stanford. I study remote sensing …
On November 11 at 5:41:17 PM CST there was a fireball detected on two NASA cameras; one located at Marshall Space Flight Center in Huntsville, Alabama and the other in Tullahoma, TN. Last evening’s fireball was just across the Tennessee/Arkansas border over the town of Jonesboro, Arkansas (NW of Memphis – see ground track image …
Synchronized Position Hold, Engage, Reorient, Experimental Satellites (SPHERES) Slosh: After experiencing issues with SPHERES batteries and a hard drive, the SPHERES Slosh Run today was postponed to a later date. Ground experts are investigating the source of the problems. Sleep Log: Kelly recorded a Sleep Log entry today. The Sleep ISS-12 experiment monitors ambient …
Nitrogen/Oxygen Recharge System (NORS) Airlock Interface Kit (AIK) Installation: Kelly prepared the US Airlock in support of NORS AIK install by removing closeout panels and flexible ventilation ducting. Yui then assisted Kelly with the installation of the NORS primary and redundant power cables. The NORS AIK activities will continue tomorrow with leak checks extending through …
Post Extravehicular Activity (EVA) Activities: Following completion of EVA #33 on November 6, the crew was given a day off on Monday. Today, the crew performed cleanup activities, including EVA loop scrubs with water conductivity tests, Extravehicular Mobility Unit (EMU) dry out, EVA tool stow, EVA camera disassembly and US Airlock deconfiguration. Sally RideEarth …
A trio of astronauts are still cleaning up after last week’s spacewalk outside the International Space Station. The cosmonauts are working on their suite of advanced space science and maintenance tasks. Also, the crew is preparing for the launch of the next Orbital ATK commercial cargo mission targeted for Dec. 3. Japanese astronaut Kimiya Yui …
