Launch Date Set for NASA’s PREFIRE Mission to Study Polar Energy Loss

The PREFIRE (Polar Radiant Energy in the Far-InfraRed Experiment) mission will send two CubeSats – shown as an artist’s concept against an image of Earth from orbit – into space to study how much heat the planet absorbs and emits from its polar regions, including the Arctic and Antarctica. Photo credit:NASA/JPL-Caltech

NASA and Rocket Lab are targeting no earlier than Wednesday, May 22, 2024, for the first of two launches of the agency’s PREFIRE (Polar Radiant Energy in the Far-InfraRed Experiment) mission to study heat loss to space in Earth’s polar regions. For the PREFIRE mission, two CubeSats will launch on two different flights aboard the company’s Electron rockets from Launch Complex 1 in Māhia, New Zealand. Each launch will carry one satellite.   

NASA’s PREFIRE mission will fill a gap in our understanding of how much of Earth’s heat is lost to space from the polar regions. By capturing measurements over the poles that can only be gathered from space, PREFIRE will enable researchers to systematically study the planet’s heat emissions in the far-infrared – with ten times finer wavelength resolution than any previous sensor.  

The Arctic and Antarctic help regulate Earth’s climate by radiating heat initially absorbed at the tropics back into space. But for regions like the Arctic, the spectrum of 60% of the energy escaping to space hasn’t been systematically measured. Filling in this picture is important for understanding which parts of the polar environment are responsible for heat loss and why the Arctic has warmed more than 2.5 times faster than the rest of the planet. In addition to helping us understand how the poles serve as Earth’s thermostat, PREFIRE observations of this heat exchange can improve our understanding of the mechanisms of polar ice loss and related questions of sea level rise and sea ice loss.  

The instruments will fly on two identical CubeSats – one instrument per CubeSat – in asynchronous, near-polar orbits. 

NASA and the University of Wisconsin-Madison jointly developed the PREFIRE mission. The agency’s Jet Propulsion Laboratory, located in Southern California, manages the mission for NASA’s Science Mission Directorate and provided the spectrometers. Blue Canyon Technologies built the CubeSats, and the University of Wisconsin-Madison will process the collected data. 

The launch, which Rocket Lab named “Ready, Aim, PREFIRE,” will be followed by a second CubeSat mission launch several weeks later.. The second launch, which the company calls “PREFIRE and Ice,” will also lift off from New Zealand on an Electron rocket. NASA’s Launch Services Program selected Rocket Lab to launch both spacecraft as part of the agency’s VADR (Venture-class Acquisition of Dedicated and Rideshare) contract.  

Follow launch updates on NASA’s Small Satellite Missions blog.

To learn more about the PREFIRE mission, visit: https://www.nasa.gov/prefire/  

NASA Set to Launch Four CubeSats to Space Station

This photograph shows two women working on a small spacecraft.
NASA engineers Julie Cox and Kate Gasaway install a solar panel on the BurstCube spacecraft in this image. The work was conducted in the CubeSat Lab at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. Photo credit: NASA/Sophia Roberts

NASA’s CubeSat Launch Initiative is sending a group of four small satellites, called CubeSats, to the International Space Station as ELaNa 51 (Educational Launch of Nanosatellites). These small payloads have been developed by NASA and universities and will be deployed from low Earth orbit. 

Once circling Earth, the satellites will help demonstrate and mature technologies meant to improve solar power generation, detect gamma ray bursts, determine crop water usage, and measure root-zone soil and snowpack moisture levels. 

The suite of satellites will hitch a ride aboard a SpaceX Falcon 9 rocket and Dragon spacecraft set to deliver additional science, crew supplies, and hardware for the company’s 30th commercial resupply services mission for NASA. Liftoff is targeted for 4:55 p.m. EDT Thursday, March 21, from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida. 

First Cornhusker State CubeSat 

The first CubeSat from Nebraska is the Big Red Sat-1, which aims to investigate and improve the power production ability of solar cells. It is built by a team of middle and high school students mentored by University of Nebraska-Lincoln undergraduate engineering students. 

The satellite measuring 1U, or one unit, (about four inches cubed), will test out Perovskite cells, a new type of solar cell designed to enhance power production with and without direct exposure to sunlight. The team will compare the power production to that of typical cells, called gallium arsenide solar cells, also flying on the CubeSat. 

Detecting Gamma Ray Bursts 

BurstCube is a NASA-developed 6U CubeSat designed to search the sky for brief flashes of high-energy light such as gamma-ray bursts, solar flares, and other hard X-ray transients. 

Long and short gamma ray bursts are stellar remnants that can be the result of some of the universe’s most powerful explosions like the collapse or collision of massive stars, or when a neutron star collides with a black hole. BurstCube will use a new kind of compact, low-power silicon photomultiplier array to detect the elusive bursts of light. 

With the ability to detect these brief flashes from space, BurstCube can help alert other observatories to witness changes in the universe as they happen. Astronomers can also benefit from the information because these bursts are important sources for gravitational wave discoveries. 

Rooting Out Earth Water Sources from Space 

The SigNals of Opportunity P-band Investigation, or SNoOPI, is a technology demonstration CubeSat designed to improve the detection of moisture levels on a global scale of underground root-zone and within snowpacks. 

Root zone soil moisture and snow water equivalent play critical roles in the hydrologic cycle, impacting agricultural food production, water management, and weather phenomena. When scientists understand the amount of water in the soil, crop growth can be accurately forecasted, and irrigation can become more efficient. 

The 6U CubeSat is collaboratively developed by NASA, Purdue University in Indiana, Mississippi State University, and the United States Department of Agriculture.  

The fourth in the suite of small satellites, the University of Hawaiʻi at Mānoa’s HyTI (Hyperspectral Thermal Imager) is also a 6U CubeSat designed to study water sources. 

Developed in partnership with NASA to map irrigated and rainfed cropland, HyTI is a pathfinder demonstration that packs the Hyperspectral Imager Instrument, temporal resolution thermal infrared imager focal plane technology, and high-performance onboard computing to help better understand crop water use and water productivity of major world crops. 

With these tools, HyTI can help develop a more detailed understanding of the movement, distribution, and availability of water and its variability over time and space, an important contribution to global food and water security issues.  

These payloads were selected through NASA’s CSLI, which provides U.S. educational institutions, nonprofits with an education/outreach component, informal educational institutions (museums and science centers), and NASA centers with access to space at a low cost. 

Once the CubeSat selections are made, NASA’s Launch Services Program works to pair them with a launch that is best suited to carry them as auxiliary payloads. 

For more information about NASA’s CSLI, visit: 

https://www.nasa.gov/directorates/heo/home/CubeSats_initiative 

ELaNa 50: What’s on Board?

LightCube team members inspect the CubeSat prior to integration into the deployer. From left to right: David Ordaz Perez, Chandler Hutchens, Sam Cherian, Christopher McCormick, Ashley Lepham, Raymond Barakat.
LightCube team members inspect the CubeSat prior to integration into the deployer. From left to right: David Ordaz Perez, Chandler Hutchens, Sam Cherian, Christopher McCormick, Ashley Lepham, Raymond Barakat. Photo credit: Jaime Sanchez de la Vega

On NASA’s next Educational Launch of Nanosatellites (ELaNa) mission, a pair of small satellites, called CubeSats, will hitch a ride on SpaceX’s 27th commercial resupply services mission to the International Space Station for NASA.

The ELaNa 50 complement of CubeSats will launch aboard the SpaceX Falcon 9 and Dragon spacecraft this March, from Launch Complex 39A at NASA’s Kennedy Space Center in Florida, along with additional supplies, equipment, and science investigations to be delivered to the crew aboard the station.

The university-built CubeSats are going to space as part of NASA’s CubeSat Launch Initiative (CSLI). Once deployed, the CubeSats will demonstrate technologies to conduct atmospheric experiments and reduce space debris, as well as provide people on Earth the opportunity for an immediate and powerful connection with an object in space.

First Launch for The Natural State

The CSLI program will launch its first CubeSat from Arkansas. Developed at the University of Arkansas, Fayetteville, ARKSAT-1, is a CubeSat measuring 1U, or unit, (about 4 inches cubed). It will illuminate an LED from orbit and use a ground spectrometer to track and perform atmospheric measurements.

ARKSAT-1 team members Samuel Cano (left) and Charles Smith perform final checkout tests on the ARKSAT-1 flight model, with its electronics stack engineering model also shown.
ARKSAT-1 team members Samuel Cano (left) and Charles Smith perform final checkout tests on the ARKSAT-1 flight model, with its electronics stack engineering model also shown. Photo credit: University of Arkansas

“It might be the first time this instrument technology is purposefully designed to be done with a CubeSat,” said Adam Huang, principal investigator. “It could be developed into future satellite-based systems using cooperative formations of CubeSats.”

ARKSAT-1’s secondary objective sets out to demonstrate a way to help alleviate the problem of space debris with a lightweight Solid State Inflatable Balloon (SSIB) that can be used to deorbit small satellites after a mission ends. When the balloon on ARKSAT-1 inflates, it will greatly increase the ARKSAT-1’s aerodynamic drag, thereby helping the satellite re-enter and disintegrate safely in Earth’s atmosphere. If successful, the SSIB technology could help reduce the amount of time a small satellite remains “space junk” in low-Earth orbit after its mission has ended.

Helping Others See the Light

LightCube, a 1U CubeSat developed by Arizona State University, Tempe, in collaboration with Vega Space Systems and Mexico’s CETYS Universidad, features a flash bulb that can be controlled remotely by amateur radio operators on Earth who will be able to activate the satellite to produce a brief flash visible from the ground.

The LightCube CubeSat is inserted into the Nanoracks CubeSat Deployer.
The LightCube CubeSat is inserted into the Nanoracks CubeSat Deployer. Photo credit: Nanoracks

“LightCube provides potential users worldwide with the opportunity to telecommand a spacecraft and observe a tangible and immediate response in the night sky,” said Jaime Sanchez de la Vega, principal investigator. “The team hopes that this process inspires users to learn about space, satellites, and related concepts.”

The flash will appear at a brightness similar to the International Space Station, and several commonly available smartphone and computer apps will show when LightCube is overhead and where to look in the sky to see its flash.

Considering the observational environment, the LightCube team conducted an in-depth assessment to confirm that the brief flashes generated will not have a significant impact on astronomy.

In selecting the CubeSats for ELaNa 50, CSLI continues furthering its goal of providing U.S. educational institutions, nonprofits with an education/outreach component, informal educational institutions (museums and science centers), and NASA centers with access to space at a low cost. Through CSLI, NASA’s Launch Services Program pairs selected CubeSats with launches best suited for each CubeSat’s mission and ready date, taking into consideration the planned orbit and any special constraints the CubeSat’s mission may have.

For more information about NASA’s CSLI, visit:

https://www.nasa.gov/directorates/heo/home/CubeSats_initiative

NASA Awards Phantom Launch Services Task Order for CSLI Mission

NASA logo

NASA has awarded Phantom Space Corp. four task orders to launch four CubeSat Launch Initiative missions as part of the agency’s Venture-class Acquisition of Dedicated and Rideshare (VADR) launch services contract. The CubeSats will launch no earlier than 2024 on Phantom’s Daytona rocket.

Building on NASA’s previous procurement efforts to foster development of new launch vehicles for NASA payloads, VADR provides Federal Aviation Administration-licensed commercial launch services for payloads that can tolerate higher risk. By using a lower level of mission assurance, and commercial best practices for launching rockets, these highly flexible contracts help broaden access to space through lower launch costs.

Phantom is one of 13 companies NASA selected for VADR contracts in 2022. NASA’s Launch Services Program, based at the agency’s Kennedy Space Center in Florida, manages the VADR contracts.

Educational CubeSats Set to Launch to the Space Station

A group of high school students work on their CubeSat, TJREVERB.
A group of students at Thomas Jefferson High School for Science and Technology work on their CubeSat, TJREVERB (Thomas Jefferson Research and Education Vehicle for Evaluating Radio Broadcasts). Photo credit: Thomas Jefferson High School

Four small, shoebox-sized satellites are being prepared to launch to the International Space Station as part of NASA’s Educational Launch of Nanosatellites (ELaNa) 49 mission. The small satellites, called CubeSats, will study a range of topics – from satellite communication methods to space weather to testing technology for robotic assembly of large telescopes.

The CubeSats will hitch a ride on the SpaceX Falcon 9 rocket and Dragon spacecraft set to deliver additional science, crew supplies, and hardware to the station during the company’s 26th commercial resupply services mission for NASA. Launch is targeted at 4:19 p.m. EST from Launch Complex 39A at the agency’s Kennedy Space Center in Florida.

Satellite Communications

An up-close view of the University of Michigan's Measurement of Actuator Response In Orbit (MARIO) CubeSat.
Seen here is an up-close view of the University of Michigan’s Measurement of Actuator Response In Orbit (MARIO) CubeSat. Photo credit: University of Michigan

The first U.S. high school to send a CubeSat to space back in 2013, Thomas Jefferson High School for Science and Technology’s Research and Education Vehicle for Evaluating Radio Broadcasts satellite aims to study the use of iridium as a primary radio communication method. Additionally, the satellite will demonstrate using a passive magnet onboard and the Earth’s magnetic field for stabilization rather than using an attitude determination and control system for pointing accuracy and stabilization for iridium. What makes this satellite even more notable is that it was a system’s engineering project. The students selected space-grade parts, wired the electronics for the satellite, wrote the drivers to control the different systems, and coded the flight software.

“What’s special about TJREVERB isn’t necessarily the mission, it’s what we did. These kids literally built a satellite the way the industry would build a satellite; we selected parts from vendors and got those parts to work together,” said Kristen Kucko, robotics lab director and the school’s space faculty advisor. “This is an engineering feat.”

Structure Testing

The University of Michigan’s Measurement of Actuator Response In Orbit (MARIO) is a technology demonstration that will show how test structures made of a piezoelectric material – a type of material that bends when electricity is applied and can also generate electricity when bent – perform in low-Earth orbit. This will allow the spacecraft to bend or move without any rotating parts and could one day be used to point and adjust telescope mirrors more accurately.

Space Weather

An up-close view of NASA Marshall Space Flight Center's Scintillation Prediction Observations Research Task (SPORT) CubeSat.
Seen here is an up-close view of NASA Marshall Space Flight Center’s Scintillation Prediction Observations Research Task (SPORT) CubeSat. Photo credit: NASA

NASA Goddard Space Flight Center’s Plasma Enhancement in The Ionosphere-Thermosphere Satellite (petitSat) will study density irregularities in the Earth’s ionosphere – a tiny fraction of the atmosphere made of plasma, or ionized gas. During long distance radio communication, the ionosphere reflects radio waves back to Earth. Disturbances in the upper atmosphere can change the shape of the ionosphere, creating a funhouse mirror effect and distorting these radio waves. The mission will use two instruments to measure the structure and motion of plasma in the ionosphere resulting from these changes in the upper atmosphere to better understand how these affect satellite communications.

NASA Marshall Space Flight Center’s Scintillation Prediction Observations Research Task (SPORT) will also look to the ionosphere to study space weather. The joint mission between the U.S. and Brazil will examine the formation of plasma bubbles, which sometimes scatter radio signals. Understanding how these bubbles are formed and how their evolution impacts communication signals can help scientists improve the reliability of communication and navigation systems.

“The more we learn about space weather – and how to predict it – the better we can protect our astronauts, spacecraft, and technology,” said Shelia Nash-Stevenson, SPORT project manager.

All of these were selected through NASA’s CubeSat Launch Initiative (CSLI), which provides U.S. educational institutions, nonprofits with an education/outreach component, informal educational institutions (museums and science centers), and NASA centers with access to space at a low cost. Once the CubeSat selections are made, NASA’s Launch Services Program works to pair them with a launch that is best suited to carry them as auxiliary payloads, taking into account the planned orbit and any constraints the CubeSat missions may have.

For more information about NASA’s CSLI, visit:

https://www.nasa.gov/directorates/heo/home/CubeSats_initiative

TROPICS Mission Update

After a nominal first stage flight, the upper stage of the rocket shut down early and failed to deliver the TROPICS CubeSats to orbit.

NASA’s Launch Services Program, who managed the launch service for the mission, continues to work with emerging launch providers to deliver low-cost science missions into orbit through contracts that align with commercial practices, using less NASA oversight to achieve lower launch costs.

Small satellites and Class D payloads tolerate relatively high risk and serve as an ideal platform for technical and architecture innovation, contributing to NASA’s science research and technology development. The program offers opportunity for industry developing new launch capabilities.

 

Liftoff!

Two TROPICS CubeSats have lifted off atop an Astra Rocket 3 from Space Launch Complex 46 at Cape Canaveral Space Force Station in Florida today, June 12, 2022. Launch occurred at approximately 1:43 p.m. EDT.

New T-0 Time Established for Today’s TROPICS Launch

Astra has completed final liquid oxygen conditioning and resumed countdown for the launch of its Rocket 3, carrying two of NASA’s TROPICS CubeSats. Liftoff currently is scheduled for today at 1:43 p.m. EDT.

 

Mission Facts About TROPICS

TROP:ICS constellation of CubeSats
Three pairs of satellites comprise the TROPICS constellation and will work in concert to provide microwave observations of storms on Earth, measuring precipitation, temperature, and humidity of a storm as often as every 50 minutes. Image Credit: NASA

Each TROPICS satellite is identical – a 3U CubeSat about the size of a loaf of bread and weighing about 12 lbs.

 

The TROPICS CubeSat payload is a spinning microwave radiometer with highly integrated, compact microwave receiver electronics.

 

TROPICS satellite measures microwave frequencies ranging from about 90 to 205 gigahertz, which can monitor the atmospheric emissions made by water vapor, oxygen, and clouds in the atmosphere.

 

TROPICS target altitude is 550 kilometers, and pairs of CubeSats will have three slightly different low-Earth orbits, all at an angle about 30 degrees above the equator.

 

The TROPICS Pathfinder satellite, a proof-of-concept CubeSat that launched in June of 2021, has captured images of several tropical cyclones, such as Hurricane Ida over the United States, Cyclone Batsirai over Madagascar, and Super Typhoon Mindulle over eastern Japan. The pathfinder satellite has also provided the TROPICS research team an opportunity to fine tune the satellites’ software and operational procedures before the constellation launches. In addition, the pathfinder has already been calibrated and will be able to serve as a calibration reference for the rest of the TROPICS constellation satellites. The TROPICS pathfinder helps the TROPICS CubeSats start producing useful data quickly. 

 

Astra’s Rocket 3 is an expendable, vertically-launched two stage rocket that uses liquid oxygen and kerosene as propellants. It has an overall length of 43 feet and is 52 inches in diameter. Astra designed it to fit inside a standard shipping container. Rocket 3 has five engines on its first stage, and one engine on its second stage.

 

TROPICS is an Earth venture instrument mission – science-driven, competitively selected, low-cost missions that provide opportunity for investment in innovative Earth science to enhance our capability to better understand the current state of the Earth system and to enable continual improvement in the prediction of future changes.

 

The TROPICS team is led by Principal Investigator Dr. William Blackwell at Massachusetts Institute of Technology’s (MIT) Lincoln Laboratory in Lexington and includes researchers from NASA, the National Oceanic and Atmospheric Administration (NOAA), and several universities and commercial partners.

 

NASA’s Launch Services Program at the agency’s Kennedy Space Center in Florida manages the launch service.

Weather 40% Favorable for Today’s Launch at Start of Launch Window

Astra Rocket 3 with TROPICS 1 payload
Astra’s Rocket 3, with NASA’s TROPICS CubeSats, is shown on June 1, 2022, at Space Launch Complex 46 at Cape Canaveral Space Force Station, Florida, in preparation for a June 12, 2022, launch.

Weather officials with Cape Canaveral Space Force Station’s 45th Weather Squadron predict a 40% chance of favorable weather conditions at noon, the start of today’s launch window, with the forecast dropping to 10 percent favorable later in the afternoon.

The primary weather concern at the start of the launch window is a Cumulus Cloud Rule violation. Later in the launch window, concerns include Surface Electric Fields and Lightning rules.

TROPICS mission aims to improve observations of tropical cyclones. Six TROPICS satellites will work in concert to provide microwave observations of a storm’s precipitation, temperature, and humidity as often as every 50 minutes.