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  • SESDA Supports Mars Landing

ADNET Systems Inc. has been awarded the Space and Earth Science Data Analysis (SESDA-IV) contract by the National Aeronautics and Space Administration (NASA) to support the Goddard Space Flight Center (GSFC) in Greenbelt, Maryland. SESDA-IV is a five-year cost-plus fixed-fee contract with a total potential value of approximately $250 million.

Under SESDA-IV, ADNET will provide a broad range of services to support Earth and Space science research and development, data operations, as well as activities in information system technologies, engineering, and science communication, education and public outreach that enable the Sciences and Exploration Directorate to successfully carry out its science missions at the Goddard Space Flight Center (GSFC).

SESDA is the premier Space and Earth science contract at GSFC and this award represents the third straight time ADNET Systems has been selected for this prestigious contract. Over 300 scientists, engineers, and education outreach specialists support the SESDA contract through a broad range of science disciplines, including solar and space plasma physics, astrophysics and astronomy, planetary studies, atmospheric science and climatology, oceanography, land processes, geodynamics, and solid earth geographics. “All of us at ADNET are pleased and excited to continue our partnership with NASA and we are thrilled to be selected as the SESDA contractor for the third time.” said Ashok Jha, President and CEO of ADNET.

Read more about SESDA and ADNET Systems


Using AI/ML to Discover Comets

April 22, 2022

SESDA staff has supported operations of SOHO’s Large Angle and Spectrometric Coronagraph (LASCO) for over 25 years. One of the primary objectives of this instrument is to image the solar corona to study phenomena such as Coronal Mass Ejections (CME’s). A remarkable and unintended by-product of LASCO has been the discovery of over 4000 sungrazing comets through NASA’s Sungrazer Citizen Science Program conducted jointly with the Naval Research Laboratory (NRL). In 2022, this program partnered with NASA’s Open-Source Science Initiative in a data challenge to develop artificial intelligence/machine learning (AI/ML) tools to automate the identification and tracking of faint comets that approach the Sun. This challenge has already reaped benefits by enabling the discovery of two previously undetected comets from 2005 and 2016.

HECN Team Demonstrates High-Speed Networking at SC21

January 31, 2022

At the SuperComputing 2021 (SC21) event, the SESDA HECN team demonstrated the use of NVMe over Fabric over TCP (NVMe-OF/TCP) technology across a 400-GigE wide-area network (WAN) infrastructure using 200-GigE Mellanox NICs, NVMe SSD drives, and PCIe Gen4 x16 slots in the demo servers.
The new NVMe-OF/TCP technology is now fully supported by recent Linux kernels which allowed showcasing very high performance disk-to-memory network data transfers between a pair of high performance 4×200-GigE SuperMicro AMD EPYC NVMe servers in the MAX Suite that was routed across the 400-GigE ESnet/Internet2 WAN path to the StarLight Booth at SC21 and then looped to the MAX Suite. An aggregate throughput of 24.35 GB/s (194.8 Gigabits per second (Gbps)) was achieved with 64 parallel reads across 16 NVMe drives, with only a moderate level of system CPU utilization on the server. When looping the traffic at StarLight instead of SC21, which reduced the RTT from 19.7 ms to 14.7 ms, aggregate throughput of 25.11 GB/s (200.9 Gbps) was achieved. On purely local transfers between the two servers, an aggregate throughput of 44.53 GB/s (356.2 Gbps) was reached.

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