ISS On-Orbit Status Report

Umbilical Interface Assembly (UIA) Remove and Replace (R&R) Troubleshooting: Yesterday the crew investigated if loosening the 20 fasteners securing the UIA to the Airlock mounting bracket would generate any free play and allow the crew to close the gap in the Oxygen Supply lines; unfortunately, the crew indicated the tolerances were too tight and this …

Umbilical Interface Assembly (UIA) Remove and Replace (R&R) Troubleshooting: During the UIA R&R yesterday, the crew noted that the Oxygen (O2) Supply line was approximately 2-3 mm too short to be properly mate without applying a tensile, stretching force to make contact.  Initial troubleshooting was unsuccessful, and the O2 line was left partially connected and …

Predetermined Debris Avoidance Maneuver (PDAM) Status: Last night’s possible PDAM for object #99999 was not required. A second update to the object’s trajectory was received overnight and the Probability of Collision (PC) had dropped well into the green threshold.  Concern level was low and PDAM planning was no longer needed.  MagVector 3D: The crew relocated …

Predetermined Debris Avoidance Maneuver (PDAM) for Object #99999: Teams continue to track the ISS conjunction with object #99999 (Unknown Object) with a Time of Closest Approach (TCA) of 01:42 AM CDT tomorrow morning. While the latest tracking information on the object has dropped the Probability of Collision (PC) into the green threshold, it has not …

Lab Carbon Dioxide Removal Assembly (CDRA) Shut down: Yesterday afternoon the Lab CDRA shut down due to an Air Selector Valve (ASV) fault on valve 104.  Initial recovery attempts, and subsequent troubleshooting, were unsuccessful.  Node 3 CDRA is active and Amine Swingbed was also activated, in order to better manage ppCO2 over the weekend. Teams …

Time:  The crew performed a Time perception session. ESA’s Time experiment captures the accurate perception of objects in the environment is a prerequisite for spatial orientation and reliable performance of motor tasks. Time is also fundamental to motion perception, sound localization, speech, and fine motor coordination. The Time experiment quantifies the subjective changes in time …

NanoRacks-Remove Debris (RemDeb): The RemDeb satellite was deployed nominally from the ISS.  NanoRacks-Remove Debris demonstrates an approach to reducing the risks presented by space debris or “space junk”. Collisions in space may have serious consequences, but research has shown that removing the largest debris significantly reduces the chance of collisions. NanoRacks-Remove Debris uses a 3D …

Nanoracks-Remove Debris Satellite (RemDeb): Today ground specialists used the Space Station Remote Manipulator System (SSRMS) to remove RemDeb from the JEM Airlock (JEMAL) Slide Table and maneuvered to the deploy position.  RemDeb demonstrates an approach to reducing the risks presented by space debris or “space junk”. Collisions in space may have serious consequences, but research …

Gravitational References for Sensitomotor Performance (GRASP): The crew reconfigured the GRASP equipment from the seated configuration to the quasi-free floating configuration this morning. They will compete three science operational runs in the new configuration. GRASP is intended to provide insight into how the central nervous system integrates information from different sensory modalities, encoded in different …

Post Extravehicular Activity (EVA) Activities: Following yesterday’s successful US EVA #51 Node 2 (N2) Forward External Wireless Communications (EWC), the crew began stowing the tools and cameras used during the EVA and conducted an Extravehicular Mobility Unit (EMU) water recharge.  The crew also participated in an EVA debrief with ground specialists. Gravitational References for Sensitomotor …