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LLNL / Tyvak Space Telescope goes into orbit

A synthetic false color image of the Andromeda Galaxy was created by stacking five wide-field channel images with an exposure of 8 seconds. This image shows the extraordinary stability gained by the Tyvak-0130 bus for microsatellite class vehicles. During this series of exposures, two satellites moved their fields of view. Both are represented as two aligned stripes, with a bright stripe near the center and a dark stripe and a short stripe near the bottom left.Credits: Lawrence Livermore National Laboratory

Thousands of images of the Earth and space were taken by a compact space image payload developed by Lawrence Livermore National Laboratory (LLNL) researchers and their collaborators, Tyvak Nano-Satellite Systems.


There are two payloads, known as GEOStare2 space A telescope that has been sent back to Earth in the past month and has taken more than 4,500 photographs together for space recognition, astronomy, and Earth observations.

The space telescope was integrated into a 25-pound Tyvak microsatellite that flew into orbit on May 15 on a SpaceX Falcon 9 rocket launched from NASA’s Kennedy Space Center.

“Our payload is working very well. It’s ahead of schedule for checkout,” said Wim de Vries, an LLNL astrophysicist who is the Associate Program Leader of the Lab’s Space Science and Security Program. I will. “The satellite is working very well.”

Marc Bell, CEO of Tyvak’s parent company, Terran Orbital, said: “The collaboration with LLNL has been incredibly successful so far and we are optimistic about the future.”

Flying to this day Low earth orbit At 575 kilometers (or 360 miles of altitude), GEOSTAre2 captured over 2,000 ground images of the Earth and over 2,500 images for space recognition and astronomy.

The purpose of space domain recognition is to track satellites and debris in space to avoid collisions. “It’s much easier to recognize the cosmic realm from space because you don’t have to look into the clouds or wait for the darkness,” deVries said.

The technology was developed by LLNL and Tyvak under a four-year, $ 6 million Cooperative Research and Development Agreement (CRADA) to advance compact satellites for commercial applications. It combines LLNL’s monolithic telescope (MonoTele) technology with Tyvak’s expertise in producing reliable spacecraft.

MonoTele is Space telescope Manufactured from a single monolithic fused silica slab, optical lenses can operate within tight tolerances. This approach does not require in-orbit alignment, greatly simplifies spacecraft design, and positively impacts spacecraft size, weight, and power needs.

Developed by LLNL over the last eight years, the MonoTele Space Telescopes range in size from 1 inch (called a mini monolith) to 8 inches.

One of the two GEOStare2 telescopes has a high resolution and a narrow field of view, and the other has a wide field of view with excellent sensitivity.

The GEOSTAre2 payload, which travels on a Tyvak-0130 microsatellite, is about the size of a loaf of bread, with each sensor in it having a diameter of 85 millimeters (or 3.3 inches) and a length of 140 millimeters (or about 6). Inches).

The Tyvak spacecraft features an advanced and stable attitude control system with a 3-star tracker, four ultra-smooth reaction wheels and a high-performance flight computer. These are all developed and manufactured by Tyvak.

The 1-inch LLNL Mini Monolith Space Telescope is already flying in space onboard the Tyvak-0192, also known as Cerberus, and the GEOstare 1 satellite launched in January 2018 will use another 85mm version. I did.

In addition to de Vries, the LLNL team that built GEOSTAre2 included mechanical engineer Darrell Carter, precision engineer Jeff Klingmann, and space science and security program physicist and deputy program leader Alex Pertica. It was.

Brian Baumann, an optical scientist at LLNL, is the inventor of MonoTele technology, replacing two mirrors and weighing structures with a single solid glass, with optical shapes and reflective coatings on both ends of the glass.

Founded in 2013 and headquartered in Irvine, California, Tyvak Nano-Satellite Systems is a satellite manufacturer and a wholly owned subsidiary of Terran Orbital.


Space-based telescopes can image the Earth and beyond


Quote: LLNL / Tyvak Space Telescope goes into orbit (June 18, 2021) June 18, 2021 Obtained from https://phys.org/news/2021-06-llnltyvak-space-telescope-orbit.html

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LLNL / Tyvak Space Telescope goes into orbit

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