Detection of Thermal Emission at Millimeter Wavelengths from Low-Earth Orbit Satellites

The detection of satellite thermal emission at millimeter wavelengths is presented using data from the 3rd-Generation receiver on the South Pole Telescope (SPT-3G). This represents the first reported detection of thermal emission from artificial satellites at millimeter wavelengths. Satellite thermal emission is shown to be detectable at high signal-to-noise on timescales as short as a few tens of milliseconds. An algorithm for downloading orbital information and tracking known satellites given observer constraints and time-ordered observatory pointing is described. Consequences for cosmological surveys and short-duration transient searches are discussed, revealing that the integrated thermal emission from all large satellites does not contribute significantly to the SPT-3G survey intensity map. Measured satellite positions are found to be discrepant from their two-line element (TLE) derived ephemerides up to several arcminutes which may present a difficulty in cross-checking or masking satellites from short-duration transient searches.

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Publication Details

Journal
The Open Journal of Astrophysics
Published
2025-05-01
DOI
https://doi.org/10.33232/001c.137526
Citations
1
Primary Topic
Spacecraft Design and Technology
Type
article
Field-Weighted Citation Impact
4.99

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article

Detection of Thermal Emission at Millimeter Wavelengths from Low-Earth Orbit Satellites

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The Open Journal of Astrophysics
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article

Detection of Thermal Emission at Millimeter Wavelengths from Low-Earth Orbit Satellites

Chunyu Lu, F. Bianchini, T. Natoli, K. Fichman, T. de Haan, E. Hivon, N. W. Halverson, Karen Lévy, J. Stephen, L. Balkenhol, P. Chaubal, Abhishek S. Maniyar, A. Coerver, S. Guns, C. L. Reichardt, F. Kéruzoré, G. P. Holder, J. E. Carlstrom, K. R. Dibert, A. J. Anderson, E. Schiappucci, F. Guidi, P. Paschos, A. Rahlin, M. Rahimi, L. Bryant, T.-L. Chou, C. Tandoi, M. Millea, B. A. Benson, M. Korman, M. Archipley, Y. Wan, L. E. Bleem, C. Umilta, J. A. Sobrin, Kedar A. Phadke, J. D. Vieira, K. R. Ferguson, Z. Pan, F. R. Bouchet, C. Chang, J. E. Ruhl, M. Rouble, A. Doussot, A. Foster, P. M. Chichura, K. Prabhu, Y. Omori, T. M. Crawford, C. Daley, Cynthia Trendafilova, N. Goeckner-Wald, N. Whitehorn, Behzad Ansarinejad, D. Dutcher, J. C. Hood, C.-L. Kuo, B. Thorne, Y. Nakato, W. L. Holzapfel, F. Menanteau, G. I. Noble, M. Dobbs, A. N. Bender, A. Hryciuk, R. Gualtieri, A. E. Gambrel, Alexander W. Pollak, Arati Chokshi, D. R. Barron, A. A. Stark, W. L. K. Wu, E. Camphuis, J. A. Zebrowski, K. Kornoelje, A. Vitrier, Fan Ge, K. Benabed, A. E. Lowitz, R. W. Gardner, S. Galli, M. R. Young, L. Knox, W. Everett, N. Huang, J. Montgomery, Wei Quan, C. Feng, A. R. Khalife, E. S. Martsen
article en
1 citations

Abstract

The detection of satellite thermal emission at millimeter wavelengths is presented using data from the 3rd-Generation receiver on the South Pole Telescope (SPT-3G). This represents the first reported detection of thermal emission from artificial satellites at millimeter wavelengths. Satellite thermal emission is shown to be detectable at high signal-to-noise on timescales as short as a few tens of milliseconds. An algorithm for downloading orbital information and tracking known satellites given observer constraints and time-ordered observatory pointing is described. Consequences for cosmological surveys and short-duration transient searches are discussed, revealing that the integrated thermal emission from all large satellites does not contribute significantly to the SPT-3G survey intensity map. Measured satellite positions are found to be discrepant from their two-line element (TLE) derived ephemerides up to several arcminutes which may present a difficulty in cross-checking or masking satellites from short-duration transient searches.

The Open Journal of AstrophysicsVol. 8
Canadian Institute for Advanced Research (CA), Argonne National Laboratory (US), Fermi National Accelerator Laboratory (US), Harvard University (US), High Energy Accelerator Research Organization (JP), Urbana University (US), Institut d'Astrophysique de Paris (FR), University of Illinois System (US), University of Colorado System (US), Kavli Institute for Particle Astrophysics and Cosmology (US), Electronics for Imaging (United States) (US), Menlo School (US), Northwestern University (PH), Astrobiology Center (JP), Melbourne Health (AU), McGill University (CA), Case Western Reserve University (US), University of California, Davis (US), Michigan State University (US), Netherlands Institute for Radio Astronomy (NL), University of California, Berkeley (US)
National Science Foundation, U.S. Department of Energy, University of Chicago, Office of Science, U.S. Air Force, High Energy Physics, Argonne National Laboratory, Fermilab
Openalex Percentile: Top 8%
Spacecraft Design and Technology
4.99
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