Makoto Tagawa (Kyushu University), Toshifumi Yanagisawa (Japan Aerospace Exploration Agency), Hirohisa Kurosaki (Japan Aerospace Exploration Agency), Hiroshi Oda (Japan Aerospace Exploration Agency), Toshiya Hanada (Kyushu University)
https://doi.org/10.64861/LHUL5851
Keywords: low Earth orbit, follow-up observation
Abstract:
Orbital object catalogue maintenance capability should be improved to correspond to future orbital environment because space objects population grows continuously. This paper proposes a follow-up observatory consists of uses of our new image-processing algorithm and the multi-telescope observation method. The algorithm enables to improve SNR of streaks by summing their signal intensities. The observatory applies the algorithm to recover SNR of objects unintentionally appeared as streaks in field of view. However, the improvement capability is limited to a square root of streak length as maximum, theoretically. The proposed observatory uses multi-telescope sets to recover rest of degraded SNR. The feasibility of the algorithm is confirmed by an application test to actual observation datasets. The test resulted that the algorithm enables to detect an object appeared with streaks darker than background noise, e.g. 0.66. This paper summarizes that the observatory can recover observation efficiency degradation due to unintentional appearance as streaks without on-site operation or complex instrument.
Date of Conference: September 9-12, 2014
Track: Poster