Satellite megaconstellations will threaten space-based astronomy

Satellite megaconstellations will threaten space-based astronomy This repository contains the results from a series of simulations of satellitetrails in space telescopes. In particular, the properties listed contain theposition, velocity, and surface brightness of satellite trails, as well as theproperties related to the observers, Hubble Space Telescope, SPHEREx,Xuntian, and ARRAKIHS (Future F-class ESA mission). The repository contains two folders with 4 files each, one per telescope. . |-TRAILS | |-HST_sat_trails.csv | |-ARRAKIHS_sat_trails.csv | |-SPHEREx_sat_trails.csv | |-CSST_sat_trails.csv | |- ntrails_vs_nsats_table.csv |-SPECTRA | |-SPHEREx_trail_flux.fits | |-HST_trail_flux.fits | |-ARRAKIHS_trail_flux.fits | |-CSST_trail_flux.fits | |- mu_vs_wave.csv |-ReadMe.txt TRAILS contains five astropy csv tables, containing the properties of thesatellite trail observations, divided by telescope and exposure(track_id / nsats), and the average properties per number of satellites (ntrails_vs_nsats_table.csv)Consult the header on each table for more details about the columns. SPECTRA contains four multiextension FITS files, containing the spectralenergy distribution of the satellite trails as a function of wavelength, and the average properties per wavelength (mu_vs_wave.csv).The structure of the FITS files is: 0 INFO no-data 01 WAVELENGTH float64 100 # Contains the wavelength for the spectra (in m)2 TOTAL_FLUX float64 NTRAILSx100 # Total surface brightness for each trail [Axis 0: Trail, Axis 1: Wavelength]3 EARTHSHINE float64 NTRAILSx100 # Surface brightness produced by Earthshine [Axis 0: Trail, Axis 1: Wavelength]4 MOONSHINE float64 NTRAILSx100 # Surface brightness produced by Moonshine [Axis 0: Trail, Axis 1: Wavelength]5 SUNSHINE float64 NTRAILSx100 # Surface brightness produced by Sunshine [Axis 0: Trail, Axis 1: Wavelength]6 THERMAL_SUN float64 NTRAILSx100 # Surface brightness produced by Earth reflected thermal emission [Axis 0: Trail, Axis 1: Wavelength]7 THERMAL_SAT float64 NTRAILSx100 # Surface brightness produced by Thermal satellite emission [Axis 0: Trail, Axis 1: Wavelength] See also:N : ahttps://doi.org/10.21203/rs.3.rs-6414845/v1 : Nature - Accepted for publication