USRA IRAD FY21 Award

USRA IRAD FY21 Award

Multiple SmallSats Cross-correlation Localization Technique for Gamma-ray Transients

Dr. Corinne Fletcher (PI) and Dr. Adam Goldstein (Co-I) were awarded an FY21 USRA IRAD to provide a publicly available standardized toolkit for determining and improving the location of gamma-ray transients on the sky using multiple instruments in various orbits.  Currently, the cross-correlation localization technique is used to do this by the InterPlanetary Network for various instruments in low Earth orbit (LEO) and beyond. However, the code is proprietary, maintained in St. Petersburg, Russia, and the method used is simplistic when considering pairs of instruments in LEO or for weak to moderately bright signals. With many gamma-ray missions utilizing SmallSat and CubeSat solicitations, there is a need for a public, modernized toolkit. This would allow current and future missions to easily determine their localization capabilities and the improvement to that from including multiple instrument detections. This idea would align with both the Earth and Space Small- and Micro-satellite Mission Concepts and Instrument and Mission Concepts for Multi-Messenger Astrophysics strategic interest areas and be a joint proposal with a MSFC Center Innovation Fund (CIF).

In the News

December 22, 2021
USRA Scientists and Engineers Contribute to NASA's Xray Polarimetry Explorer

NASA’s Imaging X-ray Polarimetry Explorer (IXPE) launched successfully on December 9, 2021 from the Kennedy Space Center in Florida. It was a “picture perfect” launch, according to Principal Investigator Dr. Martin Weisskopf of the NASA/Marshall Space Flight Center, with the SpaceX Falcon 9 rocket performing nominally and nature providing ideal weather conditions.

USRA Scientists and Engineers Contribute to NASA's Xray Polarimetry Explorer
August 17, 2021
Bringing Earth Data to Life

Ms. Tondapu's work featured in an article on the NASA Applied Sciences website.

Bringing Earth Data to Life
April 13, 2021
Pollution Studies during COVID-19 Lockdown

View the WIRED article discussing Dr. Gupta's year-long study for pollution in India during the COVID-19 lock down.

Pollution Studies during COVID-19 Lockdown
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