NASA and SpaceX are withdrawing from this week’s launch of Falcon 9 from the CRS-25 cargo mission to the International Space Station.
NASA and SpaceX officials met today to discuss an issue identified over the weekend and the best way forward.
During Dragon spacecraft propellant loading, high readings of mono-methyl hydrazine (MMH) vapor were measured in an isolated region of the Draco propellant propulsion system. Propellant and oxidizer have been discharged from this region to support further inspections and testing. Once the exact source of the high readings has been identified and the cause has been determined, the joint NASA and SpaceX teams will determine and announce a new target release date.
Meanwhile, flight engineers Jessica Watkins of NASA and Samantha Cristoforetti of ESA (European Space Agency) are catching up with the meeting and docking procedures of the Dragon cargo spacecraft. The duo trained with a computer on Monday to prepare for their roles as they control Dragon’s automated arrival and docking.
Eye exams were on schedule and NASA flight engineer Kjell Lindgren took over today as the crew’s medical officer. He operated medical imaging equipment, using standard optical coherence tomography techniques, and scanned the eyes and retinas of Cristoforetti and NASA flight engineer Bob Hines.
Before beginning his eye exam, Hines cleaned and stored the obsolete combustion research hardware to make way for the newer scientific equipment being delivered to the next refueling missions. The first space flight also worked on light orbital plumbing tasks and recirculated fluids to support plants growing for the XROOTS space botany study.
Lindgren began her day at the Quest Lock by serving as a US space suit. The first time the space fighter collected water samples from the suit’s cooling loops and cleaned its water lines before installing new components. Watkins completed the space suit work in the afternoon after his encounter training with the Dragon.
In the Russian segment of the station, Commander Oleg Artemyev and Flight Engineer Sergey Korsakov re-explored ways to maximize and control the effectiveness of space exercise. Artemyev also upgraded cargo inventory systems as Korsakov unpacked supplies from inside the new Progress 81 refueling vessel. Flight engineer Denis Matveev installed Earth before photographing the interior of the Nauka4 multipurpose laboratory module for inspection purposes.
Orbit status report
Payloads:
Astrorad: The crew gathered the right items and prepared for the next scientific activities. Comfort and Human Factors AstroRad Radiation Garment Evaluation (CHARGE) tests a special vest designed to protect astronauts from radiation caused by unpredictable solar particle (SPE) events. Astronauts provide information about the piece as they wear it while performing daily tasks, including how easy it is to put on, how it fits and feels, and the range of motion it allows. Clothing developers can use this entry to enhance the design. The use of the vest will protect crew members on missions to the Moon and Mars.
Integrated combustion / advanced combustion rack using microgravity experiments (CIR / ACME): As a continuation of the activity started last week, obsolete ACME hardware was located, consolidated and prepared for return or garbage. The ACME series of experiments has been performed and the ACME insert has been previously removed from the CIR to make room for the currently installed experiment insert known as Solid Fuel Ignition and Extinction (SoFIE). The CIR includes an optical bench, a combustion chamber, a fuel and oxidant control, and five different cameras for conducting microgravity combustion research.
Cold Atom Laboratory (CAL): A member of the crew performed a visual inspection of the CAL Medium Temperature Loop Bridge (MTL) to check for leaks and reported leaks. The MTL Jumper has been susceptible to a small leak and regular monitoring of the crew has been implemented as the terrain evaluates future repair options. CAL produces clouds of atoms that cool to tens of billions of degrees above absolute zero (much colder than the average temperature of deep space). At these low temperatures, atoms have almost no motion, which allows scientists to study fundamental behaviors and quantum features that are difficult or impossible to probe at higher temperatures. In microgravity, researchers can reach temperatures even colder than possible on the ground and observe these cold atomic clouds for longer periods of time.
EXposed Orbital Root Testing System (XROOTS): In support of current growth, the crew performed manual water recovery activity on root modules (RM) 1 and 2. XROOTS research uses hydroponic techniques and aeroponics to grow plants without soil or other means of growth. Video and still images allow the evaluation of multiple independent growth chambers for the entire life cycle of the plant, from seed germination to maturity. The results could identify suitable methods for producing larger-scale crops for future space missions.
Pass ISS HAM: The crew participated in an ISS Ham event with Scuola Media S.Pietro, Nuoro, Sardinia, Italy. Some of the questions asked by the students included whether the crew believes there are other living solar systems, whether the crew listens to music and what kind of music is preferred, and whether the crew would like to live or visit another planet if possible. ISS Ham Radio provides opportunities to engage and educate students, faculty, parents, and members of the STEM community by providing a means of communication between astronauts and ground-based Ham radio units.
Light Ion Detector for ALTEA (LIDAL): LIDAL moved to its second operating location. The ability of long-term anomalous effects in astronauts (ALTEA) to measure the linear energy transfer (LET) of protons and helium and the kinetic energy of protons and heavy ions was enhanced by the addition of a new system. flight time (TOF). detector called LIDAL. LIDAL improves ALTEA’s ability to make measurements that can be converted, through dedicated software in real time, into radiation risk coefficients, allowing ALTEA to become the first dosimetric (risk meter) on board the ISS.
Nutrition Monitoring for the International Space Station (NutrISS): In support of NutrISS research, a Nutrition Assessment (ENA) of the European Space Agency (ESA) was conducted. In NutrISS research, a periodic assessment of body composition (body weight, fat mass and fat-free mass) is performed during space flight aboard the ISS using a dedicated bioimpedance analysis device to allow measurement. of long-term energy. modification of the balance over time. It is hypothesized that a tight diet that maintains an almost neutral energy balance and / or increases protein intake may limit microgravity-induced bone and muscle loss.
Systems:
Extravehicular Mobility Units (EMU) 3004/3015 Loop Scrub and Iodization: The crew performed rubbing of water loops from the EMU and then acquired and tested water samples for conductivity in units 3004 and 3015. EMU loop scrubbers require the necessary preventive maintenance to remove any chemical and biological products. pollutants in the EMU transport circuit.
Optical Coherence Tomography (OCT2) Exam: The crew completed routine OCT ophthalmic examinations today. OCT is an ultrasound-like imaging technique that uses light instead of sound to capture micrometric, two-dimensional, and three-dimensional tissue images; in this case, the objects of interest are the eyes of the crew. Eye examinations are performed regularly on board to monitor the eye health of crew members. Sight is one of the many aspects of the human body that can be affected by long stays in a microgravity environment.
SpaceX-25 Dragon Rendezvous Review: Today, the crew completed a self-learning training for Cargo Dragon encounter operations in preparation for the upcoming SpaceX-25 mission.
Inspection and preparation of the WPA (Cat) catalytic reactor for stowage: Today, the crew has prepared the degraded Cat reactor for stowage. The crew inspected the bottom deck of the Cat reactor lid and cleaned up the small amount of water found.
Completed to-do list activities:
Restoring Fluids in Starboard Endcone81P USES Unpacking Today’s Earth Activities: All activities have been completed unless otherwise noted.
SSC XOI CheckoutPRO MELFI 1 Service Pack Dewar Timeliner Configuration Commander Laptop Preparation for OCT2 Exam Plan Looking Forward
Tuesday, June 7 (GMT 158) Payloads:
AstroPi VisAstroRad Vest Acoustic DiagnosticsCBEF-LNutrISSXROOTSSystems:
Nitrogen Oxygen Recharge System (NORS) Initiating Oxygen Transfer Short Extravehicular Mobility Unit (SEMU) Launch Area (SLE) Return Preparation SpaceX-25 Dragon Rendezvous Review EPP Audit Wednesday, June 8 ( GMT 159) Payloads:
Astrobee PrepAstroRad VestKUBIKMSG / Transparent Alloys StowNutrISSWanted Poster – Temp LoggerWireless Compose-2Systems:
ARED R & RT sliding assembly Temperature and humidity control (THC) Ventilation between modules (IMV) Flow measurement survey Hatch seal inspection Dome window no. 7 Scratch Panel Installation Thursday, June 9 (GMT 160) Payloads:
AstrobeeAstrorad VestCBEF-LGHF CheckoutNutriSSRodent Research-22 PrepSystems:
SpaceX-25 Dragon ReviewNode 3 Endcone Stowage CleanoutDragon Cargo Operations ReviewToday’s Planned Activities: All activities have been completed unless otherwise noted.
Hardware Consolidation ACME AstroRad Vest Hardware Collection and Familiarization Cold Atom Lab MTL Jumper Leak CheckRadiation Environment Monitor 2 (REM2) ReseatEMU Cooling Loop Scrub Desconfiguration EVA Hard Upper Torso GatherEMU Cooling Loop Maintenance IodationEMU Cooling Loop Maintenance EMU Coolub Loop Manten TorsoEMUH Deconfiguration and unconfiguration of water friction Exam OperationLab Dzus Fixation Repair [ABORTED]ORU preparation for StowageISS HAM …