最終更新日：2022/12/24
How many [orbital periods] are there in a year for an Earth-grazing satellite? Since the time of Sputnik (October 4, 1957), it has been familiar that a satellite in a low orbit revolves about the Earth in about 90 minutes. That period would be 84 minutes for the hypothetical Earth-grazing satellite.
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元となった例文
How
many
[orbital
periods]
are
there
in
a
year
for
an
Earth-grazing
satellite?
Since
the
time
of
Sputnik
(October
4,
1957),
it
has
been
familiar
that
a
satellite
in
a
low
orbit
revolves
about
the
Earth
in
about
90
minutes.
That
period
would
be
84
minutes
for
the
hypothetical
Earth-grazing
satellite.
