In-situ observations of resident space objects with the CHEOPS space telescope
Artikel i vetenskaplig tidskrift, 2024

The CHaracterising ExOPlanet Satellite (CHEOPS) is a partnership between the European Space Agency and Switzerland with important contributions by 10 additional ESA member States. It is the first S-class mission in the ESA Science Programme. CHEOPS has been flying on a Sun-synchronous low Earth orbit since December 2019, collecting millions of short-exposure images in the visible domain to study exoplanet properties. A small yet increasing fraction of CHEOPS images show linear trails caused by resident space objects crossing the instrument field of view. CHEOPS’ orbit is indeed particularly favourable to serendipitously detect objects in its vicinity as the spacecraft rarely enters the Earth's shadow, sits at an altitude of 700 km, and observes with moderate phase angles relative to the Sun. This observing configuration is quite powerful, and it is complementary to optical observations from the ground. To characterize the population of satellites and orbital debris observed by CHEOPS, all and every science images acquired over the past 3 years have been scanned with a Hough transform algorithm to identify the characteristic linear features that these objects cause on the images. Thousands of trails have been detected. This statistically significant sample shows interesting trends and features such as an increased occurrence rate over the past years as well as the fingerprint of the Starlink constellation. The cross-matching of individual trails with catalogued objects is underway as we aim to measure their distance at the time of observation and deduce the apparent magnitude of the detected objects. As space agencies and private companies are developing new space-based surveillance and tracking activities to catalogue and characterize the distribution of small debris, the CHEOPS experience is timely and relevant. With the first CHEOPS mission extension currently running until the end of 2026, and a possible second extension until the end of 2029, the longer time coverage will make our dataset even more valuable to the community, especially for characterizing objects with recurrent crossings.

Astronomy

Debris

Satellite

Telescope

Författare

N. Billot

Université de Genève

Stephan Hellmich

EPFL Laboratory of Astrophysics (LASTRO)

W. Benz

Universität Bern

A. Fortier

Universität Bern

D. Ehrenreich

Université de Genève

C. Broeg

Universität Bern

A. Heitzmann

Université de Genève

A. Bekkelien

Université de Genève

A. Brandeker

Stockholms universitet

Y. Alibert

Universität Bern

R. Alonso

Universidad de la Laguna

Instituto de Astrofísica de Canarias

T. Bárczy

Admatis

D. Barrado Navascues

Centro de Astrobiologia (CAB)

S.C.C. Barros

Universidade do Porto

W. Baumjohann

Institut fur Weltraumforschung

F. Biondi

Max-Planck-Gesellschaft

Istituto nazionale di astrofisica (INAF)

L. Borsato

Istituto nazionale di astrofisica (INAF)

A. Collier Cameron

University of St Andrews

C. Corral Van Damme

European Space Research and Technology Centre (ESA ESTEC)

A. Correia

Centre for Physics of the University of Coimbra

Szilard Csizmadia

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

P. E. Cubillos

Institut fur Weltraumforschung

Istituto nazionale di astrofisica (INAF)

Melvyn B. Davies

Lunds universitet

M. Deleuil

Laboratoire d'Astrophysique de Marseille

A. Deline

Université de Genève

O. Demangeon

Universidade do Porto

B.O. Demory

Universität Bern

A. Derekas

Eötvös Loránd University (ELTE)

Billy Edwards

Netherlands Institute for Space Research (SRON)

J. A. Egger

Universität Bern

Anders Erikson

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

L. Fossati

Institut fur Weltraumforschung

Malcolm Fridlund

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik

Universiteit Leiden

D. Gandolfi

Universita degli Studi di Torino

K. Gazeas

University Campus

Michaël Gillon

Universite de Liège

M. Gudel

Universität Wien

Maximilian N. Günther

European Space Research and Technology Centre (ESA ESTEC)

Ch. Helling

Technische Universität Graz

Institut fur Weltraumforschung

K. Isaak

European Space Research and Technology Centre (ESA ESTEC)

L. L. Kiss

Magyar Tudomanyos Akademia

Eötvös Loránd University (ELTE)

Judith Korth

Lunds universitet

K. W.F. Lam

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

J. Laskar

Observatoire de Paris

A. L. des Etangs

Institut d 'Astrophysique de Paris

M. Lendl

Université de Genève

D. Magrin

Istituto nazionale di astrofisica (INAF)

P. Maxted

Keele University

M. Mecina

Bruno Merín

European Space Astronomy Centre (ESAC)

C. Mordasini

Universität Bern

Valerio Nascimbeni

Istituto nazionale di astrofisica (INAF)

G. Olofsson

Stockholms universitet

R. Ottensamer

Universität Wien

I. Pagano

Istituto nazionale di astrofisica (INAF)

Enric Palle

Universidad de la Laguna

Instituto de Astrofísica de Canarias

G. Peter

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

D. Piazza

Universität Bern

Giampaolo P. Piotto

Università di Padova

Istituto nazionale di astrofisica (INAF)

Don L. Pollacco

The University of Warwick

D. Queloz

University of Cambridge

Eidgenössische Technische Hochschule Zürich (ETH)

Roberto Ragazzoni

Istituto nazionale di astrofisica (INAF)

Università di Padova

N. Rando

European Space Research and Technology Centre (ESA ESTEC)

H. Rauer

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

Freie Universität Berlin

I. Ribas

Institut d'Estudis Espacials de Catalunya (IEEC)

Institut de Ciències de l'Espai (ICE) - CSIC

M. Rieder

Universität Bern

N. C. Santos

Universidade do Porto

Gaetano Scandariato

Istituto nazionale di astrofisica (INAF)

D. Segransan

Université de Genève

A.E. Simon

Universität Bern

A. M.S. Smith

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

S.G. Sousa

Universidade do Porto

M. Stalport

Universite de Liège

S. Sulis

Laboratoire d'Astrophysique de Marseille

G.M. Szabó

Eötvös Loránd University (ELTE)

HUN-REN-ELTE Exoplanet Research Group

S. Udry

Université de Genève

B. Ulmer

Deutsches Zentrums für Luft- und Raumfahrt (DLR)

S. Ulmer-Moll

Université de Genève

V. Van Grootel

Universite de Liège

J. Venturini

Université de Genève

E. Villaver

Universidad de la Laguna

Instituto de Astrofísica de Canarias

N. A. Walton

University of Cambridge

T.G. Wilson

The University of Warwick

Journal of Space Safety Engineering

24688975 (ISSN) 24688967 (eISSN)

Vol. In Press

Exoplaneter från rymden - CHEOPS och PLATO, ESA's nästa två missioner

Rymdstyrelsen (174/18), 2017-01-01 -- 2022-12-31.

Exoplaneter från rymden - CHEOPS och PLATO, ESA's nästa två rymdteleskop (fas 2)

Rymdstyrelsen (177/19), 2020-01-01 -- 2022-12-31.

Rymdstyrelsen (65/19), 2020-01-01 -- 2022-12-31.

Ämneskategorier

Rymd- och flygteknik

Astronomi, astrofysik och kosmologi

DOI

10.1016/j.jsse.2024.08.005

Mer information

Senast uppdaterat

2024-09-09