  We present the detection of false positive double-lined spectroscopic
binaries candidates (SB2) using medium-resolution survey (MRS) spectra from the
one time-domain field of LAMOST data release 10 (DR10). The secondary component
in all these binaries has near zero radial velocity and solar-like spectral
lines. Highly likely this is light from the semi-transparent clouds illuminated
by the full Moon. However we also suspect that partially this contamination can
be caused by a solar light reflected from the surface of low-orbital artificial
satellites launched in the beginning of 2022. We found several possible
contaminant candidates using archival orbital data. We propose measures to
reduce risk of such contamination for the future observations and methods to
find it in archived ones.
