Solar Arrays Successfully Installed on NASA’s Psyche Spacecraft

Solar Arrays Successfully Installed on NASA’s Psyche Spacecraft

Robotically unfurling in a clean room near NASA’s Kennedy Space Center in Florida, the Psyche spacecraft’s jumbo solar arrays were tested and permanently installed on the orbiter in preparation for its 2.5 billion-mile (4 billion-kilometer) journey to study a metal-rich asteroid. The launch period opens on Oct. 5.

After passing the deployment test, the twin wings were re-stowed and will remain tucked away on the sides of the orbiter until the spacecraft leaves Earth. Psyche is scheduled to reach its destination – a mysterious asteroid of the same name, in the main asteroid belt between Mars and Jupiter – in July 2029. Then the spacecraft will orbit the asteroid from various altitudes for 26 months to gather images and other data.

Scientists hope that learning about the asteroid, which may be part of a core of a planetesimal (a building block of a planet), will tell us more about planetary cores and Earth’s own formation.

This final installation of the solar arrays took place at Astrotech Space Operations, near Kennedy. The arrays were deployed during testing last year at NASA’s Jet Propulsion Laboratory in Southern California. At 800 square feet (75 square meters), the five-panel, cross-shaped solar arrays are the largest ever deployed at JPL. With the arrays unfurled in flight, the spacecraft will be about the size of a singles tennis court.

Although they will produce more than 20 kilowatts of power when the spacecraft is near Earth, the solar arrays are primarily designed to work in the low light of deep space. The asteroid Psyche is so far from the Sun that even these massive arrays will generate just over 2 kilowatts of power at that distance.

Team members prepare to integrate one of two solar arrays on NASA’s Psyche spacecraft, inside the Astrotech Space Operations facility near the agency’s Kennedy Space Center in Florida on July 24.

That’s only a little more power than a hair dryer uses but is ample energy to meet Psyche’s electrical needs, including running science instruments, telecommunications, equipment that controls the orbiter’s temperature, and the spacecraft’s superefficient solar electric propulsion engines. The system’s thrusters use electromagnetic fields to accelerate and push out charged atoms, or ions, of the neutral gas xenon. The expelled ions create the thrust that pushes Psyche through space and emits a blue glow.

This thrust is so gentle, it exerts about the same amount of pressure you’d feel holding the weight of one AA battery in your hand. But it’s enough to accelerate Psyche through deep space. With no atmospheric drag to hold it back, the spacecraft will accelerate to speeds of up to 124,000 mph (200,000 kph) relative to Earth during its interplanetary journey to the asteroid belt.

In mid-August, a crew is scheduled to begin loading all 2,392 pounds (1,085 kilograms) of xenon onto the spacecraft over the course of a couple of weeks.

A SpaceX Falcon Heavy is targeted to launch Psyche from Launch Complex 39A at Kennedy Space Center no earlier than 10:38 a.m. EDT (7:38 a.m. PDT) on Oct. 5, with additional opportunities scheduled through Oct. 25.

More About the Mission

Arizona State University leads the Psyche mission. A division of Caltech in Pasadena, JPL is responsible for the mission’s overall management, system engineering, integration and test, and mission operations. Maxar Technologies in Palo Alto, California, provided the high-power solar electric propulsion spacecraft chassis.

JPL also is providing a technology demonstration instrument called Deep Space Optical Communications that will fly on Psyche in order to test high-data-rate laser communications that could be used by future NASA missions.

Psyche is the 14th mission selected as part of NASA’s Discovery Program, managed by the agency’s Marshall Space Flight Center in Huntsville, Alabama. NASA’s Launch Services Program, based at the Kennedy Space Center, is managing the launch service.

Click here to learn more about NASA’s Psyche Mission.


Publisher: SatNow
Tags:-  SatelliteGround

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BeiDou-3 M24Medium Earth Orbit (MEO)22 Sep, 2019

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GSAT0224MEO - Near-Circular05 Dec, 2021
GSAT0219MEO - Near-Circular25 Jul, 2018
GSAT0220MEO - Near-Circular25 Jul, 2018
GSAT0221MEO - Near-Circular25 Jul, 2018
GSAT0222MEO - Near-Circular25 Jul, 2018
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GSAT0216MEO - Near-Circular12 Dec, 2017
GSAT0217MEO - Near-Circular12 Dec, 2017
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Kosmos 2564--28 Nov, 2022
Kosmos 2559--10 Oct, 2022
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Kosmos 2545--16 Mar, 2020
Kosmos 2544--11 Dec, 2019
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Satellite NameOrbit Date
Navstar 82Medium Earth Orbit19 Jan, 2023
Navstar 81Medium Earth Orbit17 Jun, 2021
Navstar 78Medium Earth Orbit22 Aug, 2019
Navstar 77Medium Earth Orbit23 Dec, 2018
Navstar 76Medium Earth Orbit05 Feb, 2016
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Navstar 74Medium Earth Orbit15 Jul, 2015
Navstar 73Medium Earth Orbit25 Mar, 2015
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IRNSS-1FGeostationary Orbit (GEO)10 Mar, 2016
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