Space Technology Special Report - Version B. July 2023 - 14

Adamant: A Soon-to-be
Open Source, Mission-Critical
Flight Software Framework
Written in Ada
T
he challenge faced by flight software engineers at
the Laboratory for Atmospheric and Space Physics
(LASP) at the University of Colorado Boulder
became evident when tasked with developing
the onboard software for NASA's new Climate Absolute
Radiance and Refractivity Observatory (CLARREO)
Pathfinder Reflected Solar mission. The goal of measuring
Earth-reflected sunlight with an accuracy of 0.3 percent
(k=1), surpassing existing sensors by five to tenfold, from
14 JULY 2023
an instrument mounted beneath the International Space
Station (ISS), produced a complex set of requirements.
The avionics needed to balance multiple functions,
including a high-rate control law, numerous hard real-time
deadlines, interfaces with half a dozen external subsystems,
and management of commands, telemetry and fault
protection, all while capturing high-resolution science
images at 15 frames per second. Ensuring uninterrupted
operation within the unforgiving environment of low-Earth
SPACE TECHNOLOGY SPECIAL REPORT

Space Technology Special Report - Version B. July 2023

Table of Contents for the Digital Edition of Space Technology Special Report - Version B. July 2023

Space Technology Special Report - Version B. July 2023 - Cov1
Space Technology Special Report - Version B. July 2023 - Cov2
Space Technology Special Report - Version B. July 2023 - 1
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