lecture 15 Flashcards
Telescopes
used to study the composition, structure, and dynamics of celestial objects, as well as their atmospheres and surfaces. used to detect and study exoplanets orbiting other stars.
Probes
are unmanned spacecraft,
Flyby Spacecraft
Observe targets using
onboard instruments as they
pass by - do not get captured
by planet’s gravitational field
Orbiter Spacecraft:
Enter into orbit around a
planet or moon, cope with
communications interruptions
due to occultations (e.g.
Galileo probe
Atmospheric Spacecraft
Sacrificial spacecraft which
collect data on composition,
temperature, pressure, etc. of
a planet’s atmosphere and
then burn up
Lander Spacecraft:
Designed to reach the
surface of the planet and
perform chemical analysis of
composition and relay
photographs
Rover Spacecraft
Mobile units designed to
explore planetary surfaces,
perform chemical analysis
and prepare samples for
return
Impactor Spacecraft:
May be designed to disturb
materials so that composition
can be more easily studied,
or to alter trajectory
Observatory Spacecraft
Occupies an Earth orbit or
stationed at a Lagrange point
and equipped with advanced
optical instruments
Comms Spacecraft:
Often stationed in Earth
orbits, these support
communication with
spacecraft - planned
deployment elsewhere
Perseverance Rover when was it deployed and what does it search for
deployed 2020, search for ancient life(microbial activity, chemical signatures) and collect rock,
what is the key tech on perseverance rover
Mastcam-Z(camera), SuperCam(imaging and chemical composition analysis), Moxie(oxygen resource)
What is the best time to launch spacecraft to get to mars and why
26 months apart, fueling restrictictions
gravitational slingshot
using a planet’s gravity and orbital
motion to accelerate a passing spacecraft
ISS is the
largest space station (NASA ROSCOSMOS JAXA ESA and CSA)
ISS researches
astrobiology, astronomy, materials science, space weather and meteorology
How many crewed moon landings were there on the moon
6 between 1969-1972, with 12 people stepping on the moon
Apollo 11 was the first landing(what date?)
1969
Apollo The initial launch vehicle must therefore be able to lift the combined
weight of
gear, moon landing rocket, departure rocket, earth reentry equipment, fuel
Artemis program
establish lunar gateway(powered by solar), occupy near NRHO
NRHO
near-rectilinear
halo orbit
Capstone Mission
Launched by NZ. orbit is centered around the L2 Lagrange point of the
Earth-Moon system. Testing autonomous positioning system
Voyager 1 and 2 are currently 159 and 133
AU from Earth
Hubble Space Telescope
observes in the ultraviolet, visible, and
near-infrared bands of the electromagnetic spectrum
Kelper Space Telescope
designed to discover Earth-sized
exoplanets in the habitable zones of other star
James Webb Space Telescope
upgrade from hubble space telescope, infrared
