Stingray Sensor System for Persistent Survey of the GEO Belt
Tanner Campbell, Adam Battle, Dan Gray, Om Chabra, Scott Tucker, Vishnu Reddy, Roberto Furfaro
TL;DR
The Stingray system uses 15 cameras to autonomously track and analyze satellites in geosynchronous orbit above Tucson, providing precise data on their positions and brightness.
Contribution
A novel autonomous optical system for persistent and precise survey of GEO satellites with verified astrometric and photometric performance.
Findings
The system achieves a photometric uncertainty of 0.062 ± 0.008 magnitudes.
Astrometric accuracy reaches theoretical sub-pixel centroid limits.
Over 200 near-GEO satellites are tracked nightly within the system's field of regard.
Abstract
The Stingray sensor system is a 15-camera optical array dedicated to the nightly astrometric and photometric survey of the geosynchronous Earth orbit (GEO) belt visible above Tucson, Arizona. The primary scientific goal is to characterize GEO and near-GEO satellites based on their observable properties. This system is completely autonomous in both data acquisition and processing, with human oversight reserved for data quality assurance and system maintenance. The 15 ZWO ASI1600MM Pro cameras are mated to Sigma 135 mm f/1.8 lenses and are controlled simultaneously by four separate computers. Each camera is fixed in position and observes a 7.6-by-5.8-degree portion of the GEO belt, for a total of a 114-by-5.8-degree field of regard. The GAIA DR2 star catalog is used for image astrometric plate solution and photometric calibration to GAIA G magnitudes. There are approximately 200 near-GEO…
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Taxonomy
TopicsCCD and CMOS Imaging Sensors · Adaptive optics and wavefront sensing · Astronomical Observations and Instrumentation