CAMELOT: Cubesats Applied for MEasuring and LOcalising Transients mission overview

Werner, Norbert and Ripa, Jakub and Pál, András and Ohno, Masanori and Tarcai, N. and Galgóczi, Gábor and Frei, Zsolt and Mészáros, László and Kiss, L. László (2018) CAMELOT: Cubesats Applied for MEasuring and LOcalising Transients mission overview. PROCEEDINGS OF SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, 10699. ISSN 0277-786X

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Abstract

We propose a fleet of nanosatellites to perform an all-sky monitoring and timing based localisation of gamma-ray transients. The fleet of at least nine 3U cubesats shall be equipped with large and thin CsI(Tl) scintillator based soft gamma-ray detectors read out by multi-pixel photon counters. For bright short gamma-ray bursts (GRBs), by cross-correlating their light curves, the fleet shall be able to determine the time difference of the arriving GRB signal between the satellites and thus determine the source position with an accuracy of similar to 10'. This requirement demands precise time synchronization and accurate time stamping of the detected gamma-ray photons, which will be achieved by using on-board GPS receivers. Rapid follow up observations at other wavelengths require the capability for fast, nearly simultaneous downlink of data using a global inter-satellite communication network. In terms of all-sky coverage, the proposed fleet will outperform all GRB monitoring missions.

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