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Ground System for NASA’s Roman Space Telescope Completes Major Review
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By NASA
NASA has selected multiple companies to expand the agency’s Near Space Network’s commercial direct-to-Earth capabilities services, which is a mission-critical communication capability that allows spacecraft to transmit data directly to ground stations on Earth.
The work will be awarded under new Near Space Network services contracts that are firm-fixed-price, indefinite-delivery/indefinite-quantity contracts. Project timelines span from February 2025 to September 2029, with an additional five-year option period that could extend a contract through Sept. 30, 2034. The cumulative maximum value of all Near Space Network Services contracts is $4.82 billion.
Some companies received multiple task orders for subcategories identified in their contracts. Awards are as follows:
Intuitive Machines of Houston will receive two task order awards on its contract for Subcategory 1.2 GEO to Cislunar Direct to Earth (DTE) Services and Subcategory 1.3 xCislunar DTE Services to support NASA’s Lunar Exploration Ground Segment, providing additional capacity to alleviate demand on the Deep Space Network and to meet the mission requirements for unique, highly elliptical orbits. The company also previously received a task order award for Subcategory 2.2 GEO to Cislunar Relay Services. Kongsberg Satellite Services of Tromsø, Norway, will receive two task order awards on its contract for Subcategory 1.1 Earth Proximity DTE and Subcategory 1.2 to support science missions in low Earth orbit and NASA’s Lunar Exploration Ground Segment, providing additional capacity to alleviate demand on the Deep Space Network. SSC Space U.S. Inc. of Horsham, Pennsylvania, will receive two task order awards on its contract for Subcategories 1.1 and 1.3 to support science missions in low Earth orbit and to meet the mission requirements for unique, highly elliptical orbits. Viasat, Inc. of Duluth, Georgia, will be awarded a task order on its contract for Subcategory 1.1 to support science missions in low Earth orbit. The Near Space Network’s direct-to-Earth capability supports many of NASA’s missions ranging from climate studies on Earth to research on celestial objects. It also will play a role in NASA’s Artemis campaign, which calls for long-term exploration of the Moon.
NASA’s goal is to provide users with communication and navigation services that are secure, reliable, and affordable, so that all NASA users receive the services required by their mission within their latency, accuracy, and availability requirements.
These awards demonstrate NASA’s ongoing commitment to fostering strong partnerships with the commercial space sector, which plays an essential role in delivering the communications infrastructure critical to the agency’s science and exploration missions.
As part of the agency’s SCaN (Space Communications and Navigation) Program, teams at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, will carry out the work of the Near Space Network. The Near Space Network provides missions out to 1.2 million miles (2 million kilometers) with communications and navigation services, enabling spacecraft to exchange critical data with mission operators on Earth. Using space relays in geosynchronous orbit and a global system of government and commercial direct-to-Earth antennas on Earth, the network brings down terabytes of data each day.
Learn more about NASA’s Near Space Network:
https://www.nasa.gov/near-space-network
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Joshua Finch
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov
Jeremy Eggers
Goddard Space Flight Center, Greenbelt, Maryland
757-824-2958
jeremy.l.eggers@nasa.gov
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
A crane lowers the steel reflector framework for Deep Space Station 23 into position Dec. 18 on a 65-foot-high (20-meter) platform above the antenna’s pedestal that will steer the reflector. Panels will be affixed to the structure create a curved surface to collect radio frequency signals.NASA/JPL-Caltech After the steel framework of the Deep Space Station 23 reflector dish was lowered into place on Dec. 18, a crew installed the quadripod, a four-legged support structure that will direct radio frequency signals from deep space that bounce off the main reflector into the antenna’s receiver.NASA/JPL-Caltech Deep Space Station 23’s 133-ton reflector dish was recently installed, marking a key step in strengthening NASA’s Deep Space Network.
NASA’s Deep Space Network, an array of giant radio antennas, allows agency missions to track, send commands to, and receive scientific data from spacecraft venturing to the Moon and beyond. NASA is adding a new antenna, bringing the total to 15, to support increased demand for the world’s largest and most sensitive radio frequency telecommunication system.
Installation of the latest antenna took place on Dec. 18, when teams at NASA’s Goldstone Deep Space Communications Complex near Barstow, California, installed the metal reflector framework for Deep Space Station 23, a multifrequency beam-waveguide antenna. When operational in 2026, Deep Space Station 23 will receive transmissions from missions such as Perseverance, Psyche, Europa Clipper, Voyager 1, and a growing fleet of future human and robotic spacecraft in deep space.
“This addition to the Deep Space Network represents a crucial communication upgrade for the agency,” said Kevin Coggins, deputy associate administrator of NASA’s SCaN (Space Communications and Navigation) program. “The communications infrastructure has been in continuous operation since its creation in 1963, and with this upgrade we are ensuring NASA is ready to support the growing number of missions exploring the Moon, Mars, and beyond.”
This time-lapse video shows the entire day of construction activities for the Deep Space Station 23 antenna at the NASA Deep Space Network’s Goldstone Space Communications Complex near Barstow, California, on Dec. 18. NASA/JPL-Caltech Construction of the new antenna has been under way for more than four years, and during the installation, teams used a crawler crane to lower the 133-ton metal skeleton of the 112-foot-wide (34-meter-wide) parabolic reflector before it was bolted to a 65-foot-high (20-meter-high) alidade, a platform above the antenna’s pedestal that will steer the reflector during operations.
“One of the biggest challenges facing us during the lift was to ensure that 40 bolt-holes were perfectly aligned between the structure and alidade,” said Germaine Aziz, systems engineer, Deep Space Network Aperture Enhancement Program of NASA’s Jet Propulsion Laboratory in Southern California. “This required a meticulous emphasis on alignment prior to the lift to guarantee everything went smoothly on the day.”
Following the main lift, engineers carried out a lighter lift to place a quadripod, a four-legged support structure weighing 16 1/2 tons, onto the center of the upward-facing reflector. The quadripod features a curved subreflector that will direct radio frequency signals from deep space that bounce off the main reflector into the antenna’s pedestal, where the antenna’s receivers are housed.
In the early morning of Dec. 18, a crane looms over the 112-foot-wide (34-meter-wide) steel framework for Deep Space Station 23 reflector dish, which will soon be lowered into position on the antenna’s base structure.NASA/JPL-Caltech Engineers will now work to fit panels onto the steel skeleton to create a curved surface to reflect radio frequency signals. Once complete, Deep Space Station 23 will be the fifth of six new beam-waveguide antennas to join the network, following Deep Space Station 53, which was added at the Deep Space Network’s Madrid complex in 2022.
“With the Deep Space Network, we are able to explore the Martian landscape with our rovers, see the James Webb Space Telescope’s stunning cosmic observations, and so much more,” said Laurie Leshin, director of JPL. “The network enables over 40 deep space missions, including the farthest human-made objects in the universe, Voyager 1 and 2. With upgrades like these, the network will continue to support humanity’s exploration of our solar system and beyond, enabling groundbreaking science and discovery far into the future.”
NASA’s Deep Space Network is managed by JPL, with the oversight of NASA’s SCaN Program. More than 100 NASA and non-NASA missions rely on the Deep Space Network and Near Space Network, including supporting astronauts aboard the International Space Station and future Artemis missions, monitoring Earth’s weather and the effects of climate change, supporting lunar exploration, and uncovering the solar system and beyond.
For more information about the Deep Space Network, visit:
https://www.nasa.gov/communicating-with-missions/dsn
News Media Contact
Ian J. O’Neill
Jet Propulsion Laboratory, Pasadena, Calif.
818-354-2649
ian.j.oneill@jpl.nasa.gov
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Last Updated Dec 20, 2024 Related Terms
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By NASA
Download PDF: Statistical Analysis Using Random Forest Algorithm Provides Key Insights into Parachute Energy Modulator System
Energy modulators (EM), also known as energy absorbers, are safety-critical components that are used to control shocks and impulses in a load path. EMs are textile devices typically manufactured out of nylon, Kevlar® and other materials, and control loads by breaking rows of stitches that bind a strong base webbing together as shown in Figure 1. A familiar EM application is a fall-protection harness used by workers to prevent injury from shock loads when the harness arrests a fall. EMs are also widely used in parachute systems to control shock loads experienced during the various stages of parachute system deployment.
Random forest is an innovative algorithm for data classification used in statistics and machine learning. It is an easy to use and highly flexible ensemble learning method. The random forest algorithm is capable of modeling both categorical and continuous data and can handle large datasets, making it applicable in many situations. It also makes it easy to evaluate the relative importance of variables and maintains accuracy even when a dataset has missing values.
Random forests model the relationship between a response variable and a set of predictor or independent variables by creating a collection of decision trees. Each decision tree is built from a random sample of the data. The individual trees are then combined through methods such as averaging or voting to determine the final prediction (Figure 2). A decision tree is a non-parametric supervised learning algorithm that partitions the data using a series of branching binary decisions. Decision trees inherently identify key features of the data and provide a ranking of the contribution of each feature based on when it becomes relevant. This capability can be used to determine the relative importance of the input variables (Figure 3). Decision trees are useful for exploring relationships but can have poor accuracy unless they are combined into random forests or other tree-based models.
The performance of a random forest can be evaluated using out-of-bag error and cross-validation techniques. Random forests often use random sampling with replacement from the original dataset to create each decision tree. This is also known as bootstrap sampling and forms a bootstrap forest. The data included in the bootstrap sample are referred to as in-the-bag, while the data not selected are out-of-bag. Since the out-of-bag data were not used to generate the decision tree, they can be used as an internal measure of the accuracy of the model. Cross-validation can be used to assess how well the results of a random forest model will generalize to an independent dataset. In this approach, the data are split into a training dataset used to generate the decision trees and build the model and a validation dataset used to evaluate the model’s performance. Evaluating the model on the independent validation dataset provides an estimate of how accurately the model will perform in practice and helps avoid problems such as overfitting or sampling bias. A good model performs well on
both the training data and the validation data.
The complex nature of the EM system made it difficult for the team to identify how various parameters influenced EM behavior. A bootstrap forest analysis was applied to the test dataset and was able to identify five key variables associated with higher probability of damage and/or anomalous behavior. The identified key variables provided a basis for further testing and redesign of the EM system. These results also provided essential insight to the investigation and aided in development of flight rationale for future use cases.
For information, contact Dr. Sara R. Wilson. sara.r.wilson@nasa.gov
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By NASA
1 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
OTPS shares an annual letter from the Agency Chief Technologist (ACT), updates on various studies in the technology domain within OTPS, overviews of the center chief technologists, and vignettes of various technology projects across the agency. Read the full report, A Year in Review 2024 from NASA’s Agency Chief Technologist.
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Last Updated Dec 18, 2024 EditorBill Keeter Related Terms
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By NASA
Photographers at NASA capture the sunset on Tuesday, Jan. 30, 2024, near the headquarters building of the agency’s Kennedy Space Center in Florida.NASA/Ben Smegelsky As NASA’s Kennedy Space Center in Florida wraps up a year that will see more than 90 government, commercial, and private missions launch from Florida’s Space Coast, a look to 2025 shows the missions, partnerships, projects, and programs at the agency’s main launch site will continue innovating, inspiring, and pushing the boundaries of exploration for the benefit of humanity.
“The next year promises to be another exciting one at Earth’s premier spaceport,” said Kennedy Center Director Janet Petro. “We have an amazing workforce, and when we join forces with industry and our other government partners, even the sky is no limit to what we can accomplish.”
New Year, New Missions to Space Station
NASA’s Commercial Crew Program (CCP), based out of Kennedy, and its commercial partner SpaceX plan two crew rotation missions to the International Space Station: NASA’s SpaceX Crew-10 and Crew-11. This also means the return of the Crew-9 mission and later Crew-10 during 2025. CCP continues working with Boeing toward NASA certification of the company’s Starliner system for future crew rotations to the orbiting laboratory.
NASA’s SpaceX Crew-10 members stand between Falcon 9 first-stage boosters at SpaceX’s HangarX facility at NASA’s Kennedy Space Center in Florida. From left are Mission Specialist Kirill Peskov of Roscosmos, Mission Specialist Takuya Onishi of JAXA (Japan Aerospace Exploration Agency), along with NASA astronauts Commander Anne McClain and Pilot Nichole Ayers. SpaceX “Operations in 2025 are a testament to NASA’s workforce carefully planning and preparing to safely execute a vital string of missions that the agency can depend on,” said Dana Hutcherson, CCP deputy program manager. “This is the 25th year of crewed operations for the space station, and we know that with every launch, we are sustaining a critical national asset and enabling groundbreaking research.”
NASA also plans several Commercial Resupply Services missions, utilizing SpaceX’s Dragon cargo spacecraft, Northrop Grumman’s Cygnus spacecraft, and the inaugural flight of Sierra Space’s cargo spaceplane, Dream Chaser. The missions will ferry thousands of pounds of supplies, equipment, and science investigations to the crew aboard the orbiting laboratory from NASA Kennedy and nearby Cape Canaveral Space Force Station.
The SpaceX Falcon 9 rocket carrying the Dragon spacecraft lifts off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida on Tuesday, Nov. 4, on the company’s 31st commercial resupply services mission for the agency to the International Space Station. Liftoff was at 9:29 p.m. EST. SpaceX In addition to the agency’s crewed flights, Axiom Space’s fourth crewed private spaceflight mission, Axiom Mission 4 – organized in collaboration with NASA through the International Space Station Program and operated by SpaceX – will launch to the orbital outpost.
Reestablishing Humanity’s Lunar Presence
Preparations for NASA’s Artemis II test flight mission are ramping up, with all major components for the SLS (Space Launch System) hardware undergoing processing at Kennedy, including the twin solid rocket boosters and 212-foot-tall core stage. Teams with EGS (Exploration Ground Systems) will continue stacking the booster segments inside the spaceport’s VAB (Vehicle Assembly Building). Subsequent integration and testing of the rocket’s hardware and Orion spacecraft will continue not only for the Artemis II mission, but for Artemis III and IV. Technicians also continue building mobile launcher 2, which will serve as the launch and integration platform for the SLS Block 1B configuration starting with Artemis IV.
Teams with NASA’s Exploration Ground Systems transport the agency’s 212-foot-tall SLS (Space Launch System) core stage into High Bay 2 at the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Wednesday, Dec. 11, 2024. The one-of-a kind lifting beam is designed to lift the core stage from the transfer aisle to High Bay 2 where it will remain while teams stack the two solid rocket boosters on top of mobile launcher 1 for the SLS core stage.NASA/Kim Shiflett “Looking ahead to 2025, teams will embark on a transformative year as we integrate the flight hardware for Artemis II, while simultaneously developing the foundation for future Artemis missions that will reestablish humanity’s presence on the Moon,” said Shawn Quinn, EGS program manager.
A key part of the Artemis campaign, NASA’s CLPS (Commercial Lunar Payload Services) initiative will continue leveraging commercial partnerships to quickly land scientific instruments and technology demonstrations on the Moon. Firefly Aerospace’s first lunar CLPS flight, Blue Ghost Mission 1, will carry 10 NASA science and technology instruments to the lunar surface, including the Electrodynamic Dust Shield, a technology built by Kennedy engineers. Intuitive Machines, meanwhile, will embark on its second CLPS flight to the Moon. Providing the first in-situ resource utilization demonstration on the lunar surface, IM-2 will carry the Polar Resources Ice Mining Experiment-1 (PRIME-1), which features The Regolith and Ice Drill for Exploring New Terrain from Honeybee Robotics, as well as the Mass Spectrometer Observing Lunar Operations built by Kennedy. Both flights are targeted to lift off from Kennedy’s Launch Complex 39A during the first quarter of 2025.
As part of NASA’s CLPS (Commercial Lunar Payload Services) initiative and Artemis campaign, Firefly Aerospace’s Blue Ghost Mission One lander will carry 10 NASA science and technology instruments to the Moon’s near side.Firefly Aerospace In development for Artemis IV and beyond, Gateway will be a critical platform for developing a sustained human presence beyond low Earth orbit. Deep Space Logistics (DSL) is the Gateway Program project office at Kennedy responsible for leading the development of a commercial supply chain in deep space. In 2025, DSL will continue developing the framework for the DSL-1 mission and working with commercial provider SpaceX to mature spacecraft design. Upcoming milestones include a system requirements review and preliminary design review to determine the program’s readiness to proceed with the detailed design phase supporting the agency’s Gateway Program and Artemis IV mission objectives.
Science Missions Studying Our Solar System and Beyond
NASA’s Launch Services Program (LSP), based at Kennedy, is working to launch three ambitious missions. Launching early in the year on a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California, SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) is a space telescope to survey the universe using visible and near-infrared light, observing more colors than ever before and allowing astronomers to piece together a three-dimensional map of the universe with stunning accuracy. Launching with SPHEREx, NASA’s PUNCH (Polarimeter to Unify the Corona and Heliosphere) mission will study how the mass and energy of the Sun’s corona transition into the solar wind.
NASA’s SPHEREx space observatory was photographed at BAE Systems in Boulder, Colorado, in November 2024 after completing environmental testing. The spacecraft’s three concentric cones help direct heat and light away from the telescope and other components, keeping them cool. BAE Systems IMAP (Interstellar Mapping and Acceleration Probe), scheduled to launch from Cape Canaveral in late 2025, will help map out thethe heliosphere – the magnetic environment surrounding and protecting our solar system. Carrying 10 instruments to make its observations, the IMAP mission is targeting the L1 Lagrange Point, an area between Earth and the Sun that is easy for spacecraft to maintain orbit, along with two Sun observing rideshare missions – NASA’s Carruthers Geocorona Observatory and the National Oceanic and Atmospheric Administration’s SWFO-L1 (Space Weather Follow-On at L1). Also launching in late 2025 on a Falcon 9 from Vandenberg is the second of two identical satellites, Sentinel-6B, which will monitor global sea levels with unprecedented precision. Its predecessor, Sentinel-6 Michael Freilich, has been delivering crucial data since it launched in 2020, and Sentinel-6B will ensure the continuation of this mission through 2030.
“Our missions launching next year will include groundbreaking technologies to help us learn more about the universe than ever before and provide new data for researchers that will have positive benefits here on Earth,” said LSP’s Deputy Program Manager Jenny Lyons.
NASA’s ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers) identical dual spacecraft are inspected and processed on dollies in a high bay of the Astrotech Space Operations Facility near the agency’s Kennedy Space Center in Florida on Thursday, Aug. 22, 2024. As the first multi-spacecraft orbital science mission to Mars, ESCAPADE’s twin orbiters will take simultaneous observations from different locations around the planet and reveal the real-time response to space weather and how the Martian magnetosphere changes over time.NASA/Kim Shiflett The program’s support for small satellite missions next year includes several missions to monitor the Sun, collect climate data, and more. NASA’s ESCAPADE (Escape and Plasma Acceleration and Dynamics Explorers) mission to explore Mars’ magnetosphere will lift off from Cape Canaveral’s Launch Complex 36 on NASA’s inaugural flight of Blue Origin’s New Glenn rocket. Some of these small satellite missions are part of NASA’s CubeSat Launch Initiative, which offers the next generation of scientists, engineers, and technologists a unique opportunity to conduct scientific research and develop and demonstrate novel technologies in space.
Building the Spaceport’s Future
Teams expect a busy year of construction projects to accommodate new missions, hardware, and milestones. In preparation for Artemis IV, mobile launcher 2 construction and modifications in the VAB’s High Bays 3 and 4 for the larger SLS Block 1B configuration will ramp up. Teams also will upgrade the spaceport’s Converter Compressor Facility (CCF) to meet the helium needs of its commercial launch partners and the Artemis campaign, increasing efficiency, reliability, and speed of pumping helium to rockets. Upgrades to the CCF’s internal infrastructure are also part of Kennedy’s plan to earn the U.S. Green Building Council’s Leadership in Energy and Environmental Design certification, joining nine other Kennedy facilities in achieving that rating.
Photographers at NASA capture the sunset on Tuesday, Jan. 30, 2024, near Vehicle Assembly Building at the agency’s Kennedy Space Center in Florida. The iconic Vehicle Assembly Building, currently used for assembly of NASA’s Space Launch System rocket for Artemis missions, remains the only building in which rockets were assembled that carried humans to the surface of another world. NASA/Ben Smegelsky “Kennedy’s spaceport will continue to see its launch cadence grow, and we have to meet our program and commercial partner needs in the most efficient way possible,” said Sasha Sims, deputy director of Kennedy’s Spaceport Integration and Services Directorate. “Process improvements and integrated approaches should improve the speed at which government and commercial construction takes place while also improving Kennedy’s infrastructure so that it’s robust, sustainable, and able to support America’s future in space.”
Driving down acquisition costs, increasing competition, and using innovative contracting mechanisms for construction are just some of the initiatives to maximize efficiency and reliability in 2025. The center’s “Critical Day” policy prohibits certain types of work during launches requiring full flight range support but will no longer apply to commercial launches where minimal flight range support is required, training events, static fires, exercises, tests, rehearsals, nor other activities leading up to or supporting launches. This policy change is expected to create more flexibility and free up over 150 days annually for construction, maintenance, and other essential work needed to keep the spaceport running smoothly.
Finally, Kennedy will continue carrying Apollo’s legacy through Artemis. Seeds that traveled aboard the Orion spacecraft during the Artemis I mission will be planted at the spaceport, honoring the legacy of the original Moon Trees that grew from seeds flown on Apollo 14. The Florida spaceport will become one of the select locations across the country where the “new generation” of Moon Trees will take root and provide living testimony to the agency’s continuing legacy of lunar exploration.
“With so many missions and initiatives on the horizon, I’m looking forward to another banner year at Kennedy Space Center,” Petro said. “We truly are launching humanity’s future.”
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