与 «PERICYNTHION»相关的英语书籍
在以下的参考文献中发现
pericynthion的用法。与
pericynthion相关的书籍以及同一来源的简短摘要提供其在 英语文献中的使用情境。
1
Celestial Mechanics and Astrodynamics
a transearth perigee radius equal to that of its translunar perigee, will have its
pericynthion on the earth-moon axis (neglecting perturbations). This requirement
of the pericynthion position of this type of trajectory is quite intuitive considering
the ...
With a short burn of its descent engine, which slowed the spacecraft down by 22
m/s, the LM now began the descent to the surface by entering an elliptical orbit
with a pericynthion altitude of 1 5 km. The pericynthion point was, of course, ...
3
Apollo 12 - On the Ocean of Storms: On the Ocean of Storms
A nominal trajectory would yield a low-pericynthion free-return passage behind
the Moon that would return the spacecraft to Earth without further thrusting in the
event of lunar orbit insertion not occurring. A hybrid trajectory was to yield a ...
4
How Apollo Flew to the Moon
“It might be interesting to note that after sightings, we ran out P21, and we got a
pericynthion of 66.8 [nautical] Inertial measurement miles." "mt What Lovell had
done was to use hlavigation P21 in the spacecraft's computer. 359 This
program's ...
The first number — the “p” — stood for pericynthion. The second number — the “a
” — for apocynthion. These two numbers told them something about the shape of
their orbit. The two numbers, stated in kloms, represented the craft's closest and ...
6
The Journal of the Astronautical Sciences
83 84 85 TIME FROM TLI (HR) Fig. 7. Translunar Hybrid and Conic Velocity
Errors (Trajectory 3) TABLE 6 Entry Comparisons Between Conic, Hybrid and
Exact Transearth. TABLE 2 Error Comparisons at Pericynthion Between
Translunar ...
The purpose of the descent orbit insertion (DOI) burn, performed by the
separated LM, is to establish its new pericynthion, 50,000 feet above the moon
from which the LM will initiate powered descent. Steve thought, it's ironic what the
rigors of ...
8
Thirteen: The Apollo Flight That Failed
The burn was scheduled for eight-thirty that evening, which would be two hours
after pericynthion — the spacecraft's closest approach to the back side of the
moon — and hence it was called the PC +2 burn. Pericynthion was the point at
which ...
These were pericynthion and apocynthion readings — or closest and farthest
approaches to the moon. Any old body whizzing past the moon could get a
pericynthion number, but the only way you could get pericynthion and
apocynthion was ...
Jim Lovell, Jeffrey Kluger, 2006
location of the pericynthion of the resulting orbit is affected. (See fig. 11(c).) Thrust
- angle errors of 0.5° can shift the pericynthion location by as much as 6°. Several
additional errors including errors in thrust magnitude and errors in velocity and ...
G. Kimball Miller, L. Keith Barker, United States. National Aeronautics and Space Administration, 1967
包含词语«PERICYNTHION»的新条目
找出国内和国际出版社所讨论的内容，以及词语
pericynthion在以下新条目的上下文中是如何使用的。
SpaceX shoots for 'next big thing'
... using the Moon's gravity to return the ship to Earth, with an acceleration burn shortly after pericynthion (closest approach to the Moon, "PC+2 ... «NBCNews.com, 七月 12»
How to: archive and back up photos
... nonrecision individuals upbinds unmuffling subchronical sleekly oroheliograph nectiferous pericynthion colleaguing chondritis reinfestation ... «What Digital Camera, 九月 10»
