12:00 〜 12:15
[MIS07-06] Observation of Elves and Transient Luminous Events from the International Space Station with the Mini-EUSO telescope
キーワード：TLE, ELVES, International Space Station
Mini-EUSO is a telescope observing the Earth in the ultraviolet band from a nadir-facing, UV transparent window of the International space station.
The instrument - launched in 2019 - has a field of view of 44degrees, a spatial resolution on the ionosphere of 4.7 km and a sampling rate of 2.5 microseconds. The telescope consists in an optical system with two Fresnel lenses and a focal surface composed of an array of 36 Hamamatsu multi-anode photomultiplier tubes, for a total of 2304 pixels. The telescope also contains two ancillary cameras, in the near infrared and visible ranges, to complement measurements in these bandwidths.
The telescope detects UV emissions of cosmic, atmospheric and terrestrial origin on different time scales, from 2.5 microseconds and above. At the fastest sampling rate, Mini-EUSO is able to observe atmospheric phenomena such as ELVES and other Transient Luminous Events with the imaging camera, allowing to study in detail the expansion and propagation.
In this work we will present the ELVES observations done by Mini-EUSO, discussing their rate of occurrence, location and structure (ring size, speed, shape), in particular the multi-ringed events.
The instrument - launched in 2019 - has a field of view of 44degrees, a spatial resolution on the ionosphere of 4.7 km and a sampling rate of 2.5 microseconds. The telescope consists in an optical system with two Fresnel lenses and a focal surface composed of an array of 36 Hamamatsu multi-anode photomultiplier tubes, for a total of 2304 pixels. The telescope also contains two ancillary cameras, in the near infrared and visible ranges, to complement measurements in these bandwidths.
The telescope detects UV emissions of cosmic, atmospheric and terrestrial origin on different time scales, from 2.5 microseconds and above. At the fastest sampling rate, Mini-EUSO is able to observe atmospheric phenomena such as ELVES and other Transient Luminous Events with the imaging camera, allowing to study in detail the expansion and propagation.
In this work we will present the ELVES observations done by Mini-EUSO, discussing their rate of occurrence, location and structure (ring size, speed, shape), in particular the multi-ringed events.