Место издания:ИКИР ДВО РАН п. Паратунка, Камчатский край
Первая страница:136
Последняя страница:137
Аннотация:The Scorpion small satellite in the cubesat 16U format is scheduled for launch in 2025. Its payload is a complex of scientific equipment from SINP MSU, designed primarily to study transient phenomena in the upper atmosphere. The payload includes the TGS gamma-ray spectrometer, the SONET optical and UV photometer and spectrometer, as well as a complex of cosmic radiation detectors and a biocontainer for studying the influence of space factors on microorganisms. The satellite will be launched into a circular polar orbit with a height of ~ 500 km suitable for observations in all areas, including the areas of thunderstorm activity near the equator and high latitudes important for studying phenomena related to solar activity.The TGS device is a scintillation gamma-ray spectrometer that performs measurements in the range from 50 keV to 10 MeV. It consists of four modules providing a sensitive area of about 250 cm2. Two of modules represent position-sensitive detectors based on 64 detecting pixels with size 10 mm x 10 mm x 20 mm, viewed by SiPM semiconductor photodetectors. Other modules are based on large area CsI(Tl) crystals. The device will generate data both in the traditional monitoring format, which contains counting rates in several energy channels, and in the event by event recording format, which allows recording the flash time profile with microsecond accuracy. It is necessary for studying TGFs with a characteristic duration of ~200 microseconds. SONET scientific equipment is designed to study the spatial and temporal dynamics and spectral composition of radiation from transient atmospheric phenomena and lightning discharges. It includes the AURA-T telescope, being a highly sensitive imaging photometer, a spectrometer whose main purpose is to identify the type and height of the flash, and a limb camera, being a pinhole camera aimed at the limb with an angular resolution of 30 mrad. Both mentioned instruments will provide joint research of upper and the data of other devices of the Scorpion cubesat payload will be also used for the analysis. The expected daily data volume of ~100 MB will allow detailed information to be transmitted to Earth with simultaneous measurements by all instruments.
