Carrying NASA science and technology to the Moon, Intuitive Machines’ uncrewed lunar lander touched down at 5:23 p.m. CST on Thursday. The instruments aboard Odysseus will prepare NASA for future human exploration of the Moon under Artemis. Additional updates will be available Friday, Feb. 23.
Tag: Moon
Intuitive Machines, NASA Science Progress Toward Moon Landing
Intuitive Machines’ Odysseus lander has completed lunar orbit insertion successfully and is currently orbiting the Moon. Odysseus continues to be in excellent health and is approximately 60 miles (92km) from the Moon.
The spacecraft will orbit the Moon for approximately one day before beginning its descent toward the lunar surface. The landing opportunity is targeted for Thursday, Feb. 22, at 5:30 p.m. EST.
All powered NASA science instruments on board have completed their transit checkouts, received data, and are operating as expected, including: LN-1 (Lunar Node 1 Navigation Demonstrator), NDL (Navigation Doppler Lidar for Precise Velocity and Range Sensing), RFMG (Radio Frequency Mass Gauge), ROLSES (Radio-wave Observations at the Lunar Surface of the Photoelectron Sheath), SCALPSS (Stereo Cameras for Lunar Plume-Surface Studies). Since the LRA (Laser Retroreflector Array) instrument is a passive experiment designed for the lunar surface, it cannot conduct any operations in transit.
LN-1 has made three successful passes with NASA’s Deep Space Network, establishing real-time communications with ground stations on Earth. Upon lunar touchdown, the LN-1 team will conduct a full systems checkout and begin continuous operations within 24 hours of landing. NASA’s Deep Space Network will receive its transmissions, capturing telemetry, Doppler tracking, and other data and relaying it back to Earth.
A SCALPSS checkout was completed during transit, confirming the cameras are operating as expected and the instrument is in good health. Using four tiny cameras, SCALPSS will collect imagery of how the surface changes from interactions with the spacecraft’s engine plume as the lander descends toward the Moon.
RFMG continues to gauge the cryogenic propellants on Odysseus throughout the mission, including propellant loading, transit, lunar orbit insertion burn, and low lunar orbit. Data collection and analysis will continue through landing on the Moon and could provide insights on how to measure fuel in microgravity.
NDL and ROLSES have been operated, and flight controllers will continue to monitor the instruments and collect data to inform preparations for landing.
Intuitive Machines’ IM-1 mission is the company’s first mission through the agency’s Commercial Lunar Payload Services initiative, which aims to gain new insights into the lunar environment and expand the lunar economy to support future crewed missions under NASA’s Artemis campaign.
Follow along with Intuitive Machines for the latest operational updates on their mission.
First RS-25 Engine Installed to NASA’s Artemis II Moon Rocket
Technicians at NASA’s Michoud Assembly Facility in New Orleans have installed the first of four RS-25 engines on the core stage of the agency’s SLS (Space Launch System) rocket that will help power NASA’s first crewed Artemis mission to the Moon. During Artemis II, NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen will launch on SLS and journey around the Moon inside the Orion spacecraft during an approximately 10-day mission in preparation for future lunar missions.
The Sept. 11 engine installation follows the joining of all five major structures that make up the SLS core stage earlier this spring. NASA, lead RS-25 engines contractor Aerojet Rocketdyne, an L3 Harris Technologies company, and Boeing, the core stage lead contractor, will continue integrating the remaining three engines into the stage and installing the propulsion and electrical systems within the structure.
All four RS-25 engines are located at the base of the core stage within the engine section, which protects the engines from the extreme temperatures during launch and has an aerodynamic boat tail fairing to channel airflow. During launch and flight, the four engines will fire nonstop for over eight minutes, consuming propellant from the core stage’s two massive propellant tanks at a rate of 1,500 gallons (5,678 liters) per second.
Each SLS engine has a different serial number. The serial number for the engine installed Sept. 11 in position two on the core stage is E2059. It along with the engine in position one, E2047, previously flew on space shuttle flights. E2047 is the most veteran engine of the entire set flying on Artemis II with 15 shuttle flights, including STS-98, which delivered the Destiny Laboratory Module to the International Space Station in 2001. The engines installed in positions three and four (E2062 and E2063) are new engines that include previously flown hardware.
NASA is working to land the first woman and first person of color on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with Orion and the Gateway in orbit around the Moon, and commercial human landing systems. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission.
For more on NASA SLS visit:
NASA’s ShadowCam Images Permanently Shadowed Regions from Lunar Orbit
With the success of NASA’s Artemis I launch, the previously unexplored shadowy regions near the lunar South Pole where Artemis astronauts will land in 2025, are more within our reach than ever before.
One instrument that will support these future lunar exploration efforts is a hypersensitive optical camera called ShadowCam. ShadowCam is one of six instruments on board the Korea Aerospace Research Institute (KARI)’s Korea Pathfinder Lunar Orbiter, known as Danuri, which launched in August 2022 and entered lunar orbit last December.
Previous cameras in lunar orbit were designed to acquire images of sunlit surfaces. Developed by Malin Space Science Systems and Arizona State University, ShadowCam’s primary function is to collect images within permanently shadowed regions near the lunar poles. These areas never receive direct sunlight and are thought to contain water ice – a significant resource for exploration that can be used as fuel or oxygen and for other habitation applications.
Building on cameras developed for NASA’s Lunar Reconnaissance Orbiter, ShadowCam is 200 times more light-sensitive and is therefore able to capture detailed images within permanently shadowed regions – even in the absence of direct light – by using the light that is reflected off nearby geologic features such as mountains or the walls of craters.
In addition to mapping the light reflected by permanently shadowed regions to search for evidence of ice deposits, ShadowCam will also observe seasonal changes and measure the terrain inside the craters, all in service of science and future lunar exploration efforts. The high-resolution images could help scientists learn more about how the Moon has evolved, how water is trapped and preserved in permanently shadowed regions, and could help inform site selection and exploration planning for Artemis missions.
Since Danuri entered lunar orbit, ShadowCam has been in an operational checkout period, during which it has been collecting dozens of images of the lunar polar regions, including an image of Shackleton Crater, to calibrate and test its functionality. Following this checkout period, which will conclude later this month, ShadowCam will start its campaign to capture images of shadowed terrain as Danuri routinely passes over them during the planned mission of 11 months.
Read more about ShadowCam and Danuri.
CAPSTONE Completes Successful Maneuver, Teeing Up Moon Orbit
The CAPSTONE spacecraft successfully completed a trajectory correction maneuver on Thursday, Oct. 27, teeing up the spacecraft’s arrival to lunar orbit on Nov. 13.
CAPSTONE is no longer in safe mode following an issue in early September that caused the spacecraft to spin. The team identified the most likely cause as a valve-related issue in one of the spacecraft’s eight thrusters. The mission team will design future maneuvers to work around the affected valve, including the two remaining trajectory correction maneuvers scheduled before CAPSTONE’s arrival to orbit at the Moon.
CAPSTONE – short for Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment – is owned by Advanced Space on behalf of NASA. The spacecraft was designed and built by Terran Orbital. Operations are performed jointly by teams at Advanced Space and Terran Orbital.
CAPSTONE Team Stops Spacecraft Spin, Clearing Hurdle to Recovery
CAPSTONE team members successfully executed an operation to stop the spacecraft’s spin on Friday, Oct. 7, clearing a major hurdle in returning the spacecraft to normal operations.
Following a planned trajectory correction maneuver on Sept. 8, CAPSTONE suffered an issue that caused the spacecraft to spin beyond the capacity of the onboard reaction wheels to control and counter. Data from the spacecraft suggests the most likely cause was a valve-related issue in one of the spacecraft’s eight thrusters. The partially open valve meant the thruster produced thrust whenever the propulsion system was pressurized. The mission team extensively reviewed telemetry and simulation data and conducted multiple tests on the spacecraft in order to formulate a plan to stop the spacecraft’s spin despite this issue.
Recovery commands were executed Friday morning. Initial telemetry from CAPSTONE and observation data points to a successful maneuver, indicating the spacecraft has stopped its spin and regained full 3-axis attitude control, meaning CAPSTONE’s position is controlled without unplanned rotation. CAPSTONE now has oriented its solar arrays to the Sun and adjusted the pointing of its antennas to provide a better data connection to Earth.
The risks of this anomaly and recovery process were significant, and the team worked extensively and collaboratively to mitigate these risks. Over the coming days, the team will monitor the spacecraft status and make any needed adjustments to procedures in order to account for and mitigate the effects of the partially open thruster valve. The mission team also will work to design possible fixes for this valve-related issue in order to reduce risk for future maneuvers. CAPSTONE remains on track to insert into its targeted near rectilinear halo orbit at the Moon on Nov. 13.
CAPSTONE – short for Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment – is owned by Advanced Space on behalf of NASA. The spacecraft was designed and built by Terran Orbital. Operations are performed jointly by teams at Advanced Space and Terran Orbital.
Read the full update from Advanced Space. Additional updates will be provided, as available.
CAPSTONE Team Continues Work Towards Spacecraft Recovery
The CAPSTONE mission team is continuing to work towards recovery of the spacecraft orientation control. This work includes collecting information from the spacecraft, running simulations, and refining recovery plans. CAPSTONE is power positive – meaning it is generating more power from its solar panels than the spacecraft systems are using – and remains in a stable condition on track to the Moon.
CAPSTONE Team Makes Progress Toward Recovery Operation
Over the past week, the CAPSTONE spacecraft was able to improve thermal conditions for the propellant and other critical systems while maintaining positive power generation. The operations team has been performing ground and spacecraft testing in preparation for an attempt to stop CAPSTONE’s spin. This operation would return the spacecraft to normal status and will be attempted when preparations and testing are complete.
Updates will be provided as available.
Teams Work Ongoing Recovery Efforts for CAPSTONE
The CAPSTONE team continues work on recovery efforts. The primary ongoing focus now is to heat the spacecraft’s propulsion system, which dropped below its operational temperature limit following the initial issue that put the spacecraft into safe mode on Sept. 8. Over the past few days, CAPSTONE’s power – though limited by the orientation of the spacecraft in its spin relative to the Sun – appears to be sufficient for heating of the propulsion system. Once the spacecraft propulsion system temperature has been at 41° F (5° C) for at least 12 hours, the team will further evaluate the system for use in the recovery operation. Communications with the spacecraft have also improved, providing mission teams with more data from the spacecraft. Teams are evaluating the data to determine the cause of the issue and design recovery procedures to avoid similar problems during the attempted recovery operation.
Read the full update from Advanced Space, which owns CAPSTONE on behalf of NASA. Additional updates will be provided as available.
CAPSTONE Teams Continue Work to Resolve Spacecraft Issue
Following the Sept. 10 update on CAPSTONE, mission owner and operator Advanced Space has provided an update on the mission. Read the full update from Advanced Space.
During or shortly after a planned trajectory correction maneuver on Sept. 8, CAPSTONE suffered an issue that caused the spacecraft to tumble beyond the capacity of the onboard reaction wheels to control and counter. CAPSTONE was attempting to communicate with the ground for approximately 24 hours before any telemetry was recovered. After data was received, mission controllers found that the spacecraft was tumbling, the onboard computer systems were periodically resetting, and the spacecraft was using more power than it was generating from its solar panels.
Using NASA’s Deep Space Network, the combined mission team – including Advanced Space, Terran Orbital, Stellar Exploration, and NASA – re-established contact with CAPSTONE and reconfigured the spacecraft’s systems to stabilize the situation while recovery plans are evaluated. CAPSTONE remains in safe mode and now is power positive, meaning that it is generating more power from the solar panels than the system is using. Navigation data collected after the issue began suggests the Sept. 8 trajectory correction maneuver was completed or nearly complete when the issue occurred. This means the spacecraft remains on the intended trajectory and on course to its near rectilinear halo orbit at the Moon.
While work is ongoing to diagnose the cause of the issue, the team is preparing CAPSTONE to attempt a detumble operation to regain attitude control of the spacecraft. This detumble operation was successfully demonstrated after separation from the launch upper stage in July. A successful detumble would give CAPSTONE control over its orientation, allowing it to orient the solar panels to the Sun to fully charge the batteries of the power used during the detumble. The spacecraft would then orient to the ground and await further instructions. These recovery operations will be further evaluated over the coming days. Recovery timing will be guided by the data and analysis available to maximize the probability of a successful spacecraft operation.
Updates will be provided as available.