Download presentation
Presentation is loading. Please wait.
1
C.M. Rodrigue, 2007 Geography, CSULB Mars: Sources of Data from the Robotic Missions IV Geography 494-01 S/07 Dr. Christine M. Rodrigue
2
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Mars Express Orbiter (2003-present) Main objective is to search for sub-surface water from orbit and deploy a lander onto the Martian surface Beagle 2 lander crashed in late 2003: It was to look for life signs
3
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Mars Express Orbiter (2003-present) Orbiter instrumentation: Analyser of Space Plasmas and Energetic Atoms (ASPERA-3) High/Super Resolution Stereo Colour Imager (HSRS) Radio Science Experiment (MaRS) Subsurface Sounding Radar/Altimeter (MARSIS) IR Mineralogical Mapping Spectrometer (OMEGA) Planetary Fourier Spectrometer (PFS) UV and IR Atmospheric Spectrometer (SPICAM)
4
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Mars Express Orbiter (2003-present) Orbiter instrumentation: Analyser of Space Plasmas and Energetic Atoms (ASPERA-3) High/Super Resolution Stereo Colour Imager (HSRS) Originally developed for the Mars 96 mission: The duplicate, since upgraded 9 CCD line sensors in pushbroom swaths Each of these arrays has 5184 7 micron pixels (10 m on ground) Super Resolution Channel telescope with 1024 x 1032 CCD array that results in 2.3 m pixels on the ground Multispectral visible light to near infrared imaging plus panchromatic imaging by the forward and aft line sensors Radio Science Experiment (MaRS) Subsurface Sounding Radar/Altimeter (MARSIS) IR Mineralogical Mapping Spectrometer (OMEGA) Planetary Fourier Spectrometer (PFS) UV and IR Atmospheric Spectrometer (SPICAM)
5
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA High Resolution Stereo Colour imager New topographic maps Contour lines: “first ‘hikers’ maps’ of Mars”! Here’s 1:200,000
6
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA High Resolution Stereo Colour imager New topographic maps Contour lines: “first ‘hikers’ maps’ of Mars”! Here’s 1:100,000
7
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA High Resolution Stereo Colour imager New topographic maps Contour lines: “first ‘hikers’ maps’ of Mars”! And 1:50,000
8
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Mars Express Orbiter (2003-present) Orbiter instrumentation: Analyser of Space Plasmas and Energetic Atoms (ASPERA-3) High/Super Resolution Stereo Colour Imager (HSRS) Radio Science Experiment (MaRS) Subsurface Sounding Radar/Altimeter (MARSIS) Ground-penetrating radar (1.3-5.5 MHz) Deployed from end of 40 m antenna to generate long wl Radio waves reflect back upward from any surface discontinuity: surface itself, liquid layers underground IR Mineralogical Mapping Spectrometer (OMEGA) Planetary Fourier Spectrometer (PFS) UV and IR Atmospheric Spectrometer (SPICAM)
9
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA MARSIS The idea behind ground-penetrating radar
10
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA MARSIS Has found crater basin structures buried in Chryse Planitia
11
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA MARSIS Has found crater basin structures buried in Chryse – dark ovals
12
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Mars Express Orbiter (2003-present) Orbiter instrumentation: Analyser of Space Plasmas and Energetic Atoms (ASPERA-3) High/Super Resolution Stereo Colour Imager (HSRS) Radio Science Experiment (MaRS) Subsurface Sounding Radar/Altimeter (MARSIS) IR Mineralogical Mapping Spectrometer (OMEGA) Building map of surface composition in 100 m squares Determines mineral composition through reflected VL & IR (0.5- 5.2 microns) Because reflected surface light must pass through atmosphere, OMEGA can also infer atmospheric composition Planetary Fourier Spectrometer (PFS) UV and IR Atmospheric Spectrometer (SPICAM)
13
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA IR Mineralogical Mapping Spectrometer (OMEGA) Building map of surface composition in 100 m squares One focus is water-related/water-affected minerals Water content of the rocks and clay minerals Abundance of non-silicate materials (carbonates, nitrates, hydrated sufates), which imply standing water or water alteration
14
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA IR Mineralogical Mapping Spectrometer (OMEGA) Building map of surface composition in 100 m squares Another focus is the carbon dioxide/water composition of the caps Water does not absorb ~2 microns, and carbon dioxide does South polar cap shows absorption at 2, implying CO 2 (A & B) Spectrum C shows absorption where A & B don’t ~1.5 microns, indicating more water ice in the mix there
15
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Mars Express Orbiter (2003-present) Orbiter instrumentation: Analyser of Space Plasmas and Energetic Atoms (ASPERA-3) High/Super Resolution Stereo Colour Imager (HSRS) Radio Science Experiment (MaRS) Subsurface Sounding Radar/Altimeter (MARSIS) IR Mineralogical Mapping Spectrometer (OMEGA) Planetary Fourier Spectrometer (PFS) Another spectrometer, overlapping part of OMEGA’s spectrum but also including spectra far deeper into the infrared: 1.2-5 microns and then 5-45 microns This spectrometer focusses more on the atmosphere’s temperature and composition, rather than the surface UV and IR Atmospheric Spectrometer (SPICAM)
16
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Planetary Fourier Spectrometer (PFS) Vertical temperature structure of Martian atmosphere
17
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Planetary Fourier Spectrometer (PFS) Optical thickness of Martian atmospheric dust (with surface elevation below the reading also shown)
18
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Planetary Fourier Spectrometer (PFS) Water vapor abundance Concentrated in Arabia Terra, Elysium Planum, Arcadia Memnonia
19
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Planetary Fourier Spectrometer (PFS) Detection of methane (CH 4 ): the little down blips ~3018 wn/cm There are also 3 water lines at 3003.5, 3022, and 3026 There are 2 solar lines at 3012 and 3014 Methane (and formaldehyde or CH 2 O) may indicate either life or recent vulcanism, either of which would be really interesting news
20
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Mars Express Orbiter (2003-present) Orbiter instrumentation: Analyser of Space Plasmas and Energetic Atoms (ASPERA-3) High/Super Resolution Stereo Colour Imager (HSRS) Radio Science Experiment (MaRS) Subsurface Sounding Radar/Altimeter (MARSIS) IR Mineralogical Mapping Spectrometer (OMEGA) Planetary Fourier Spectrometer (PFS) UV and IR Atmospheric Spectrometer (SPICAM) Yet another spectrometer, this one collecting spectra in the UV as well as the IR tp study atmosphere and ionosphere 0.118 - 0.32 in the ultraviolet 1.1 - 1.7 in the serial infrared (what wireless devices use)
21
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Mars Express Orbiter (2003-present) UV and IR Atmospheric Spectrometer (SPICAM): Has detected an aurora on Mars for the first time, in the Terra Cimmeria region of Mars' southern hemisphere This is one of thelocalized and intense magnetic anomalies, what’s left of Mars’ global magnetic field
22
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Mars Express Orbiter (2003-present) UV and IR Atmospheric Spectrometer (SPICAM): Has detected ozone, especially above the higher latitudes
23
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Mars Express Orbiter (2003-present) UV and IR Atmospheric Spectrometer (SPICAM): Has confirmed what was long suspected: There is water ice on the south polar cap Could be a thin veneer of water ice above the CO 2 ice Could be a large slab under the CO 2 ice visible through “Swiss cheese” holes in the CO 2 ice
24
C.M. Rodrigue, 2007 Geography, CSULB Mars: Data from Robotic Missions ESA Rosetta Mission To orbit Comet 67 P/Churyumov- Gerasimenko as it comes into the inner solar system and put a lander on its surface Did a gravity-assist swing-by Mars on 25 February Carries the OSIRIS camera system (wide angle and narrow angle)
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.