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Table 3

Fluxes and equivalent widths for the contaminated V = 12.7 hot star.

Exp. Sat. S/N He I (667.8 nm) Proportions
t. Eff. Cont. Line Eq.w. Cont. Line Eq.w.
(s) Mag. ×10−18 ×10−19 (mÅ)
Contaminated
20 16.0 16.3 2.37 −1.26 181.0 1.13 1.01 0.90
75 17.4 35.4 2.17 −1.24 195.5 1.04 1.00 0.97
300 18.9 78.3 2.13 −1.24 199.9 1.01 1.00 0.99
Not contaminated
300 90.0 2.09 −1.24 201.6 1 1 1

Notes. Exp.t is the exposure time in seconds; Sat.Eff.Mag. the satellite effective magnitude (for a contaminating satellite with V = 6 moving at 25° min−1); S/N is the measured signal-to-noise ratio; continuum and line are the fluxes (in erg cm−2 s−1 Å−1) measure for the wavelength range 666.047-669.453 nm); proportion lists the ratio of the quantities relative to the non-contaminated spectrum.

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