Team : Orange Slide 2 Team Principle Investigator : Hanmin Kang
Co workers : Jiho Lee Jaeik Bae Junha Kim DOVE(Discovery Of Venus
Express) project2 Slide 3 Contents 1. Intro 2. Instruments 3.
Structure & Time line DOVE(Discovery Of Venus Express) project3
Slide 4 1. Intro DOVE(Discovery Of Venus Express) project4 Slide 5
Features of Venus The second largest rocky planet in the solar
system Diameter : Smaller than Earth with 95% Cycle of revolution
is similar to period of rotation Period of rotation : 243 days
cycle of revolution : 224 days Mass : Smaller than Earth with 81.5%
Distance between Sun and Venus : 0.7AU DOVE(Discovery Of Venus
Express) project5 Slide 6 Surface of Venus Dry and hot surface
Temperature : 737K Pressure : 92atm No liquid water Craters,
mountains, canyons, valleys DOVE(Discovery Of Venus Express)
project6 Slide 7 Atmosphere of Venus DOVE(Discovery Of Venus
Express) project7 Cloud : Sulfuric acid and water Temperature :
228K Pressure : Similar to Earth Thick atmosphere Wind speed
370km/h above the cloud 210km/h under the cloud Ozone in atmosphere
: Less than Earth with 10% 96.5% of CO 2, 3.5% of N 2 Slide 8 So we
think that.. 1. There might be some organic matters or lives in the
clouds of Venus Water and sulfuric acid in the clouds of Venus.
Ozone exist in the atmosphere of Venus 2. There might not be any
creatures on the surface of Venus Too hot DOVE(Discovery Of Venus
Express) project8 What we would like to find or study in Venus is.
1. Different kinds of bio-marks in the atmosphere 2. Different
sorts of elements and bio-marks in the surface 3. Properties of
atmosphere (pressure, temperature..) Slide 9 Mission Objects
DOVE(Discovery Of Venus Express) project9 Mission Statement
-Analyzing components of clouds and surfaces in Venus - Studying
properties of atmosphere in Venus - Searching for lives or organic
elements in Venus Science Goals - To look for lives or organic
resources in clouds and surfaces of Venus - To know if atmosphere
of Venus is appropriate for creatures to live. - To compare
components of clouds and surfaces in Venus with those of Earth
Slide 10 Mission Justification DOVE(Discovery Of Venus Express)
project10 Why did we choose this planet? - Venus is rocky planet,
and the size of it is similar to Earth. -We heard that there is
some water in the cloud of Venus. Why does Venus have biological
potential? - It has some water in the atmosphere. - Also, it has
ozone layer at a altitude of 100km - Gravity and temperature is
similar to Earth in the cloud of Venus What mission type(platform)
will be used in our project? - Orbiter : Orbits around Venus -
Carrier : Measures about the atmosphere of Venus - Interceptor :
Collects some samples on the surfaces of Venus Slide 11 Something
to Measure Percentage of each gas occupation at Venus atmosphere
(especially H2S,SO2) Carbon compounds in the atmosphere Amount of
amino acids right after the lightning (Based on Millers experiment)
Wind speed, temperature and pressure in cloud. DOVE(Discovery Of
Venus Express) project11 Slide 12 Biomarkers Organic compounds :
DNA, RNA, proteins, hydrocarbons, especially Amino acids Inorganic
compounds: : Sulfur compounds, carbonates, silicates Small organic
molecules Slide 13 2. Instruments DOVE(Discovery Of Venus Express)
project13 Slide 14 Introduce about our instruments 1. Camera 2.
Radio Science 3. GCMS-TLS 4. ASI for p, T, wind, accel
DOVE(Discovery Of Venus Express) project14 Slide 15 Compliments of
instruments for the mission Camera Major measurements : Shape of
clouds and surfaces, figure of certain matters. Take some photos of
surfaces and clouds of Venus. So, camera will give information
about geology. Can take some pictures of what the other instruments
get. Help to control the craft. DOVE(Discovery Of Venus Express)
project15 We will use. Infrared camera in the orbiter, Wide and
middle angle camera in the carrier, Narrow angle camera in the
interceptor Slide 16 Radio Science (RS) Performs as a GPS, and
communicates with the orbiter Controls or tracks the the carrier or
interceptor by using RS. Does not provide the information about
life Does not depend upon weather. DOVE(Discovery Of Venus Express)
project16 Slide 17 GCMS-TLS GC/MS Separate mix gas, check mass
spectrum and know what elements are in this gas. Major measurements
: Venus' atmosphere (H2O, CO2, NH3, CH4) Can find organic matters
and bio- marks from GC/MS-TLS. So we can get information of
existing or extinct life. We can get chemical information from this
instrument DOVE(Discovery Of Venus Express) project17 Slide 18
Analyte is separated in GC and ionize through transfer line. Mass
spectrometry act in very low pressure To protect MS hardware To
increase of mean free path DOVE(Discovery Of Venus Express)
project18 Gas Chromatograph (GC) Mass Spectrometry(MS) Slide 19 TLS
(Tunable Laser Spectrometer) Chemical construction, organic
structure It will provide information about existing life It will
give biological, chemical information DOVE(Discovery Of Venus
Express) project19 Slide 20 DOVE(Discovery Of Venus Express)
project20 1. TLS produces specific light to vibrate the molecule 2.
Once the molecule vibrates, TLS minutely tuned to different
wavelength of light to result in an extremely precise measurement.
Slide 21 ASI for p, T, wind, accel. Major measurements :
Temperature, pressure, wind speed Can assume the existence of life
by its measurement Provides Physical information DOVE(Discovery Of
Venus Express) project21 Slide 22 3. Structure & Time line
DOVE(Discovery Of Venus Express) project22 Slide 23 Structure of
Spacecraft DOVE(Discovery Of Venus Express) project23 Antenna Solar
cell Propulsion system Engine of carrier Main body of spacecraft
Carrier Slide 24 Energy Resources Solar Energy We can operate the
orbiter by using solar energy, because the orbiter always get
around in space. Thus, the orbiter can always receive sunlight, so
it can generate electricity by solar energy, using solar cells.
Nuclear Energy The carrier and interceptor which perform their work
under the clouds of Venus cant get energy from sun. So they have to
use nuclear energy, which can produce a lot of energy with small
amount of resources. DOVE(Discovery Of Venus Express) project24
Slide 25 Time Line DOVE(Discovery Of Venus Express) project25 Earth
Venus 2015. 7. 1 : Launch our craft ~2015. 12.24 : Voyage to Venus
~2016.1. 24 : Stabilize the orbit of craft ~2020.1. 24 :
Exploration period ~2015. 8. 1 : Stabilize the orbit of craft E E
Slide 26 DOVE(Discovery Of Venus Express) project26 Voyage to Venus
Stabilizing the orbit of the craft in Earth 2015. 7. 1~8.1
Launching day 2015.7.1 Stabilizing the orbit of the craft in Venus
2015.12.24~2016.1.24 Mission on Venus Mission start 2016. 1. 24
Mission end -Death of the spacecraft. 2020. 1. 24 Arrive to Venus
2015. 1. 24 Slide 27 Methods to explore Venus DOVE(Discovery Of
Venus Express) project27 Earth Venus E E E E E E E E E E 1 2 3
Slide 28 First : Change the length of craft DOVE(Discovery Of Venus
Express) project28 Slide 29 Methods to explore Venus DOVE(Discovery
Of Venus Express) project29 Earth Venus E E E E E E E E E E 1 2 3
Slide 30 Second : Drop the carrier from the orbiter The structure
of the carrier DOVE(Discovery Of Venus Express) project30 Wings to
help carriers up and down Disk Middle angle camera Wide angle
camera Cargo which has 4 interceptors Main body -contains GCMS-TLS
ASI for p, T, wind, accel, Radio Science Robot arm for collecting
materials from atmosphere Slide 31 How to up and down through the
jet stream Slide 32 DOVE(Discovery Of Venus Express) project32
Using engine of the carrier & storing energy in battery of the
carrier Using engine of the orbiter Generated by solar cell After
dropping the carrier Before droppin g carrier Slide 33
DOVE(Discovery Of Venus Express) project33 Slide 34 Methods to
explore Venus DOVE(Discovery Of Venus Express) project34 Earth
Venus E E E E E E E E E E 1 2 3 Slide 35 Third : Throw down
interceptor from the carrier The structure of interceptor
DOVE(Discovery Of Venus Express) project35 Antenna Camera Main body
Leg of interceptor Propulsion system Robot arm When interceptor
return to carrier Slide 36 Slide 37 DOVE(Discovery Of Venus
Express) project37 Slide 38 DOVE(Discovery Of Venus Express)
project38 Slide 39 Region Explored by Interceptor There are a lot
of volcanoes and shields on Venus Our landing spacecraft,
Interceptor, will land on the large shield to land stable In the
prior exploration like Venera14, they landed on the Theiamons which
is a large shield volcano on Venus Slide 40 Region Explored by
Interceptor Slide 41 DOVE(Discovery Of Venus Express) project41
Slide 42 DOVE(Discovery Of Venus Express) project42
