Space Dynamics Laboratory (SDL) is a nonprofit government contractor owned by

Utah State University Utah State University (USU or Utah State) is a public land-grant research university in Logan, Utah. It is accredited by the Northwest Commission on Colleges and Universities. With nearly 20,000 students living on or near campus, USU is Utah ...

. SDL was formed in 1982 from the merger of

's Electro Dynamics Laboratories (founded in 1959) and the

University of Utah The University of Utah (U of U, UofU, or simply The U) is a public research university in Salt Lake City, Utah. It is the flagship institution of the Utah System of Higher Education. The university was established in 1850 as the University of De ...

's Upper Air Research Laboratory (founded in 1948). The corporation has been responsible for the design, fabrication, and operation of

sensors A sensor is a device that produces an output signal for the purpose of sensing a physical phenomenon. In the broadest definition, a sensor is a device, module, machine, or subsystem that detects events or changes in its environment and sends ...

on over 430 payloads ranging from

aircraft An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engine ...

and

rocket A rocket (from it, rocchetto, , bobbin/spool) is a vehicle that uses jet propulsion to accelerate without using the surrounding air. A rocket engine produces thrust by reaction to exhaust expelled at high speed. Rocket engines work entirely fr ...

-borne experiments to space shuttle experiments and satellite-based sensor systems. SDL is the Missile Defense Agency's

University Affiliated Research Center A University Affiliated Research Center (UARC) is a strategic United States Department of Defense (DoD) research center associated with a university. UARCs are formally established by the Under Secretary of Defense for Research and Engineering (US ...

(UARC) and one of 14 UARCs in the nation. SDL provides sensor systems and supporting technologies to address challenges for the

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

government. SDL designs and develops

electro-optical sensor Electro-optical sensors are electronic detectors that convert light, or a change in light, into an electronic signal. These sensors are able to detect electromagnetic radiation from the infrared up to the ultraviolet wavelengths. They are used in ...

s, builds

small satellite A small satellite, miniaturized satellite, or smallsat is a satellite of low mass and size, usually under . While all such satellites can be referred to as "small", different classifications are used to categorize them based on mass. Satellites ca ...

s, provides calibration services, and creates real-time data reconnaissance systems. SDL employs over 900 engineers, students, and professional staff at facilities in Logan, Utah; Albuquerque, New Mexico;

Bedford, Massachusetts Bedford is a town in Middlesex County, Massachusetts, United States. The population of Bedford was 14,383 at the time of the 2020 United States Census. History ''The following compilation comes from Ellen Abrams (1999) based on information ...

;

Dayton, Ohio Dayton () is the sixth-largest city in the U.S. state of Ohio and the county seat of Montgomery County. A small part of the city extends into Greene County. The 2020 U.S. census estimate put the city population at 137,644, while Greater D ...

;

Huntsville, Alabama Huntsville is a city in Madison County, Limestone County, and Morgan County, Alabama, United States. It is the county seat of Madison County. Located in the Appalachian region of northern Alabama, Huntsville is the most populous city in ...

; Houston, Texas;

Los Angeles, California Los Angeles ( ; es, Los Ángeles, link=no , ), often referred to by its initials L.A., is the largest city in the state of California and the second most populous city in the United States after New York City, as well as one of the world' ...

; and

Washington, D.C. ) , image_skyline = , image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...

History

SDL origins date back to 1948 with experiments by the

Upper Air Research Laboratory (UARL) to measure

electron density In quantum chemistry, electron density or electronic density is the measure of the probability of an electron being present at an infinitesimal element of space surrounding any given point. It is a scalar quantity depending upon three spatial va ...

in the upper

atmosphere of Earth The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing fo ...

utilizing German

V-2 rocket The V-2 (german: Vergeltungswaffe 2, lit=Retaliation Weapon 2), with the technical name ''Aggregat 4'' (A-4), was the world’s first long-range guided ballistic missile. The missile, powered by a liquid-propellant rocket engine, was develop ...

s. In 1959, the Electro-Dynamics Laboratories (EDL) was founded at

. The UARL relocated to Utah State University in 1970 and merged with EDL in 1982 to form SDL. One of the early missions involved measurements during

Operation Dominic Operation Dominic was a series of 31 nuclear test explosions with a total yield conducted in 1962 by the United States in the Pacific. This test series was scheduled quickly, in order to respond in kind to the Soviet resumption of testing af ...

in 1962. In 1965, the laboratory participated in its 100th launch aboard a sounding rocket. In 1982, SDL participated in its first experiment (the Vehicle Charging and Potential experiment) aboard a

space shuttle The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program. Its official program ...

as part of

STS-3 STS-3 was NASA's third Space Shuttle mission, and was the third mission for the Space Shuttle ''Columbia''. It launched on March 22, 1982, and landed eight days later on March 30, 1982. The mission, crewed by Jack R. Lousma and C. Gordon Ful ...

Projects for NASA

SDL has been a contractor for

NASA The National Aeronautics and Space Administration (NASA ) is an independent agencies of the United States government, independent agency of the US federal government responsible for the civil List of government space agencies, space program ...

on a variety of missions for decades. In 2019, NASA selected USU to conduct the Atmospheric Waves Experiment (AWE) led by Mike Taylor. AWE involves an

imager An image sensor or imager is a sensor that detects and conveys information used to make an image. It does so by converting the variable attenuation of light waves (as they pass through or reflect off objects) into signals, small bursts of cur ...

built at SDL that will be mounted on the

International Space Station The International Space Station (ISS) is the largest modular space station currently in low Earth orbit. It is a multinational collaborative project involving five participating space agencies: NASA (United States), Roscosmos (Russia), JAXA ( ...

(ISS) to map

airglow Airglow (also called nightglow) is a faint emission of light by a planetary atmosphere. In the case of Earth's atmosphere, this optical phenomenon causes the night sky never to be completely dark, even after the effects of starlight and diffu ...

. Other NASA projects include: * Thermal links for

infrared Infrared (IR), sometimes called infrared light, is electromagnetic radiation (EMR) with wavelengths longer than those of visible light. It is therefore invisible to the human eye. IR is generally understood to encompass wavelengths from around ...

instruments on the James Webb Space Telescope. * SDL built and tested The

Wide-field Infrared Survey Explorer Wide-field Infrared Survey Explorer (WISE, observatory code C51, Explorer 92 and SMEX-6) is a NASA infrared astronomy space telescope in the Explorers Program. It was launched in December 2009, and placed in hibernation mode in February 201 ...

(WISE) science instrument used to discover thousands of

minor planets According to the International Astronomical Union (IAU), a minor planet is an astronomical object in direct orbit around the Sun that is exclusively classified as neither a planet nor a comet. Before 2006, the IAU officially used the term ''mino ...

and

asteroids An asteroid is a minor planet of the inner Solar System. Sizes and shapes of asteroids vary significantly, ranging from 1-meter rocks to a dwarf planet almost 1000 km in diameter; they are rocky, metallic or icy bodies with no atmosphere. ...

. * SDL designed, manufactured, and tested the cryogenic subsystems for the focal plane assemblies of

Orbiting Carbon Observatory The Orbiting Carbon Observatory (OCO) is a NASA satellite mission intended to provide global space-based observations of atmospheric carbon dioxide (). The original spacecraft was lost in a launch failure on 24 February 2009, when the payload f ...

(OCO) and of

OCO-2 Orbiting Carbon Observatory-2 (OCO-2) is an American environmental science satellite which launched on 2 July 2014. A NASA mission, it is a replacement for the Orbiting Carbon Observatory which was lost in a launch failure in 2009. It is the seco ...

. * Solar occultation for ice experiment (SOFIE) onboard the

Aeronomy of Ice in the Mesosphere The Aeronomy of Ice in the Mesosphere (AIM or Explorer 90) is a NASA satellite originally launched to conduct a 26-month study of noctilucent clouds (NLCs). Its mission was extended, and as of 2022 is still operational. It is the ninetieth Exp ...

(AIM) satellite was designed and fabricated at SDL. * The Floating Potential Measurement Unit (FPMU) designed and built by SDL monitors surface charging of the

(ISS). * The detector electronics assemblies for the

OSIRIS-REx OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer) is a NASA asteroid-study and sample-return mission. The mission's primary goal is to obtain a sample of at least from 101955 Bennu, a carbona ...

Camera Suite (OCAMS) to image the asteroid, search for

outgassing Outgassing (sometimes called offgassing, particularly when in reference to indoor air quality) is the release of a gas that was dissolved, trapped, frozen, or absorbed in some material. Outgassing can include sublimation and evaporation (which ...

plumes, and document the sample acquisition. * Cryogenic Infrared Radiance Instrumentation for Shuttle ( CIRRIS 1A) flew onboard

Space Shuttle Discovery Space Shuttle ''Discovery'' ( Orbiter Vehicle Designation: OV-103) is one of the orbiters from NASA's Space Shuttle program and the third of five fully operational orbiters to be built. Its first mission, STS-41-D, flew from August 30 to S ...

in 1991 as part of

STS-39 STS-39 was the twelfth mission of the NASA Space Shuttle ''Discovery'', and the 40th orbital shuttle mission overall. The primary purpose of the mission was to conduct a variety of payload experiments for the U.S. Department of Defense (DoD). ...

. CIRRIS was used to measure phenomena such as

and

aurora An aurora (plural: auroras or aurorae), also commonly known as the polar lights, is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of bri ...

l phenomenology. SDL designed, built, and tested the instrument. * A major flight test unit subsystem for the

Plankton, Aerosol, Cloud, ocean Ecosystem Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) is a NASA Earth-observing satellite mission that will continue and advance observations of global ocean color, biogeochemistry, and ecology, as well as the carbon cycle, aerosols and clouds. PACE ...

(PACE) satellite was built at SDL.

References

External links

Space Dynamics Laboratory official website
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