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Starlink Satellite Brightness -- Characterized From 100,000 Visible Light Magnitudes

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arxiv 2111.09735 v1 pith:UPRJSKUP submitted 2021-11-18 astro-ph.IM

classification astro-ph.IM
keywords magnitudesbrightnesssatellitestarlinkcharacterizedfunctionsmagnitudemean
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Magnitudes for the VisorSat and Original-design types were analyzed separately and by time. Mean values are compared with those from other large-scale photometric studies, and some signficant differences are noted. The illumination phase functions for Starlink satellites indicate strong forward scattering of sunlight. They are also time-dependent on a scale of months and years. These phase functions improve the predictability of satellite magnitudes. A Starlink Brightness Function tailored to the satellite shape also improves magnitude predictions. Brightness flares lasting a few seconds are characterized and the mean rate of magnitude variation during a pass is determined. Observation planning tools, including graphs and statistics of predicted magnitudes, are discussed and illustrated.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. The Growing Impact of Unintended Starlink Broadband Emission on Radio Astronomy in the SKA-Low Frequency Range

    astro-ph.IM 2025-06 conditional novelty 6.0 of 10

    A 29-day survey with the EDA2 prototype found Starlink satellites emit unintended broadband radio emission across SKA-Low frequencies, including ITU protected bands, at levels that could harm EoR science.

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