Ground Telescopes can Adapt to Satellite Megaconstellations if They get Accurate Telemetry Data - by spacewriter
The LSST Consortium has pointed out that if they could all could be darkened to 7th magnitude, they would be far below the saturation in resulting images. But, that doesn’t completely solve the problem if operators do not agree to do this.
VRO scientists estimate from simulations that satellites will heavily affect the LSST observations. They base this on the observing cadence and assuming a full deployment of 42,000 SpaceX satellites. As many as 30% of all LSST images would contain at least one streak. Now, extrapolate that to constellations of 400,000 LEOsats. Most images will have visible streaks, some of them bright.
This sequence of Starlink streaks was obtained on the night of 12-13 November using the Cerro Tololo Inter-American Observatory all-sky camera. The Vera Rubin Observatory could face similar intrusions on observations from satellite constellations. Courtesy NOIRLab.So, what about programming the observatory to simply avoid looking at the sky during satellite passes? It’s complex.
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