LADEE LADEE - Lunar Atmosphere and Dust Environment Explorer Presented to the Eastern Shore Defense...
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LADEE LADEE - Lunar Atmosphere and Dust Environment Explorer Presented to the Eastern Shore Defense Alliance February 19, 2013 NASA Wallops Flight Facility
LADEE LADEE - Lunar Atmosphere and Dust Environment Explorer
Presented to the Eastern Shore Defense Alliance February 19, 2013
NASA Wallops Flight Facility Douglas Voss LADEE Launch Services
Manager Range and Mission Management Office Goddard Space Flight
Center NASA Wallops Flight Facility
Slide 2
LADEE The Lunar Atmosphere and Dust Environment Explorer
Determine the global density, composition, and time variability of
the fragile lunar atmosphere before it is perturbed by further
human activity. Determine the size, charge, and spatial
distribution of electro-statically transported dust grains. Test
laser communication capabilities. Demonstrate a low-cost lunar
mission: Simple multi-mission modular bus design Low-cost launch
vehicle
Slide 3
Lunar Exosphere An exospheres is a tenuous, collisionless
atmosphere. The lunar exosphere is bounded by the lunar surface a
surface boundary exosphere. Consists of a variety of atomic and
molecular species indicative of conditions at the Moon (surface,
subsurface). Wide variety of processes contribute to sources,
variability, losses.
Slide 4
Building on Apollos experience studying the Moons dust. Lunar
Dust
Slide 5
Lunar Dust EXperiment (LDEX) HEOS 2, Galileo, Ulysses and
Cassini Heritage Neutral Mass Spectrometer (NMS) MSL/SAM Heritage
UV Spectrometer (UVS) LCROSS heritage Lunar Laser Com Demo (LLCD)
Technology demonstration Dust and exosphere measurements A.
Colaprete NASA ARC In situ measurement of exospheric species P.
Mahaffy NASA GSFC 51-622 Mbps 150 Dalton range/unit mass resolution
M. Hornyi, LASP High Data Rate Optical Comm D. Boroson MIT-LL SMD -
directed instrument SMD - Competed instrument SOMD - directed
instrument LADEE Instruments
Slide 6
Spacecraft Configuration 330 kg spacecraft mass 53 kg payload
mass
Slide 7
LADEE -Vibration Testing
Slide 8
LADEE Mission Profile Spacecraft final processing and fueling
at Wallops. Launches August 2013 from Wallops Flight Facility.
First mission on the new Minotaur V. 2-3 phasing orbits to get to
Moon. Insertion into retrograde orbit around Moon. Checkout orbit
(initially 250km) for 30 days. 100-day science mission at
~20-75km.
Slide 9
Trajectory Overview
Slide 10
Launch Team Science Mission Directorate - Sponsor Ames Research
Center Mission Lead Goddard Space Flight Center Payloads Wallops
Flight Facility Launch Services USAF Minotaur V Launch Vehicle
Slide 11
11 Minotaur V
Slide 12
Min V Pathfinder 12 Stacking of Payload & Stage 5
Encapsulated Payload/Stage 5 Roll-out and preparation for transport
to Pad 0B View towards the south after gantry roll-away
Slide 13
Wallops Launch Range 13
Slide 14
Launch Tracking & Data Bermuda TDRSS Coquina, NC WFF
Slide 15
V-45/55 Complex 15 V-50 Control Facility Spin Balance Controls
V-55 S/C Fueling Monitoring SCAPE Suiting V-55 Fueling Facility
Spacecraft Fueling Spin Balance Spacecraft Closeout Encapsulation
in Min V Fairing V-45 Spin Balance STAR-37 Spin /Bal on Gisholt
3300 Potential Min V Stage 4 & 5 Assy.
Slide 16
VCSFA MARS Pad-0B
Slide 17
Questions
Slide 18
MOVIE
Slide 19
A Dusty Lunar Sky? Micro-metorites as a cause of lunar dust? A
Dusty Lunar Sky? Micro-metorites as a cause of lunar dust?
Slide 20
A new generation of robotic lunar explorers is revolutionizing
our understanding of the Moon. We now recognize the Moon as a
dynamic world with surficial and internal volatiles, active
geology, and complex interactions with space weather. All of these
could contribute to a fascinating lunar atmospheric
environment.
Slide 21
Lunar Atmosphere? Yes, but very thin! A cubic centimeter of
Earth's atmosphere at sea level contains about 10 19 molecules.
That same volume just above the Moon's surface contains only about
100,000 to a few million molecules. It glows most strongly from
atoms of sodium. However, that is probably a minor constituent. We
still do not know its composition.
Slide 22
Moon Dust under a Microscope Note jagged edges and shining
surfaces. The latter is melted rock from micrometeorite
impacts.
Slide 23
A Dusty Lunar Sky? In 1968, NASA's Surveyor 7 moon lander
photographed a strange "horizon glow looking toward the daylight
terminator. Observations are consistent with sunlight scattered
from electrically-charged moondust floating just above the lunar
surface.
Slide 24
Exospheres and Dust Io Europa & other Icy satellites Eros
Large Asteroids & KBOs Moon Surface Boundary Exospheres (SBEs)
may be the most common type of atmosphere in the solar system
Evidence of dust motion on Eros and the Moon.... Delory, American
Geophysical Union Fall Meeting 12-16-09
Slide 25
Slide 26
Min V Pathfinder 26 Type 2 Transporter Arrival Stages 1-3 GTM
Arrival on Commercial Haulers Dual crane transfer liftAn offending
gate post
Slide 27
Min V Pathfinder 27 Stage 1 Break-overStage 2 Lift Stage 3 Lift
Peacekeeper Motor Emplacement
Slide 28
Min V Pathfinder 28 Stacking of Payload & Stage 5
Encapsulated Payload/Stage 5 Roll-out and preparation for transport
to Pad 0B View towards the south after gantry roll-away
Slide 29
Slide 30
Spin Balance
Slide 31
Star 37 (5 th Stage ) Minotaur IV+ 38.81 Standard Interface
Payload Attachment Fitting LADEE 31.1 Interface Shock/Vibration
Isolation System Separation System Taurus 92 Fairing Minotaur V
Launch Vehicle
Slide 32
TACSAT 4 Min IV + Launched Kodiak Launch Center 9/29/11 Mission
Success