-
primary body to the
orbiting body when the
latter is located: 1) at the
periapsis point, or 2) at the
apoapsis point (compare both graphics,
second figure)...
- "longitude of
periapsis" or "longitude of periastron" are
often used
synonymously with "argument of
periapsis". In
astrodynamics the
argument of
periapsis ω can...
- the
longitude of
periapsis (e.g., mean
longitude and true longitude) will also be compound. Sometimes, the term
longitude of
periapsis is used to refer...
- are seen with
Venus and Neptune. As two
objects orbit each other, the
periapsis is that
point at
which the two
objects are
closest to each
other and the...
-
reaches the apoapsis, a
second engine firing adds
energy to
raise the
periapsis,
putting the
spacecraft in the
larger circular orbit. Due to the reversibility...
- If an
impulsive burn of Δv is
performed at
periapsis in a
parabolic orbit, then the
velocity at
periapsis before the burn is
equal to the
escape velocity...
-
apoapsis or
periapsis, as they all have the same
distance from the
central body.
Additionally it is
common to see the
affix for
apoapsis and
periapsis changed...
- near-circular orbits, it is hard to find the
periapsis in the
first place (and
truly circular orbits have no
periapsis at all). Furthermore, the
equation was...
- : 25, 62–63 For
elliptical orbits it can also be
calculated from the
periapsis and
apoapsis since r p = a ( 1 − e ) {\displaystyle r_{\text{p}}=a\,(1-e)}...
-
flying the
vehicle through the
atmosphere at the low
point of the
orbit (
periapsis). The
resulting drag
slows the spacecraft.
Aerobraking is used when a...
