Welcome to SESDA

  • Rare Mercury Transit Event Captured Live

Welcome to the Space and Earth Science Data Analysis (SESDA III) home page. SESDA III is the premier space and Earth science contract at NASA’s Goddard Space Flight Center, held by ADNET Systems, Inc. ADNET, Wyle and Telophase form TEAM ADNET.

Approximately 300 scientists and engineers provide vital support to NASA under the SESDA III contract. Watch this site for exciting SESDA III news, events and job opportunities.

Read more about SESDA and ADNET Systems


Rare Mercury Transit Event Captured Live

May 13, 2016

Image Credit: NASA's Goddard Space Flight Center/SDO/Genna Duberstein
Image Credit: NASA’s Goddard Space Flight Center/SDO/Genna Duberstein

On May 9th 2016, ADNET scientists and education staff working with over 600 scientists from around the country, the Goddard communications office, and the Goddard Amateur Astronomy Club supported the rare Transit of Mercury. They provided telescope viewing, media interviews, and a social media campaign called “Small Worlds Week.” ADNET web developers successfully live streamed the full transit to the Sun Earth Days/Small Worlds Week website from the McMath-Pierce Solar Telescope. They also coordinated with the JSOC data center at Stanford University to retrieve near-real time HD images and video from the Solar Dynamics Observatory (SDO) that complemented the ground-based observations. This composite image of Mercury’s journey across the sun was created with visible-light images from the Helioseismic and Magnetic Imager on SDO.

Helioviewer 3.0 Released

March 30, 2016

Screenshot from Helioviewer 3.
SESDA developers released a new and completely redesigned version of the Solar and Heliospheric data exploration tool Helioviewer. Helioviewer is a web-based visualization tool based on the JPEG 2000 image compression format which facilitates serving large data volumes in highly compressed, quality-progressive, and region-of-interest based form. Providing rapid and efficient access to high spatial and time resolution data from multiple instruments and other data sources is critically important to supporting scientific discovery. The new tool features a versatile image timeline browse capability, direct connections to science data providers via the Virtual Solar Observatory, and enhanced integration with social media platforms including YouTube, Twitter, Facebook, Google+, and Pinterest.

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