MAHIMars Alteration Hyperspectral Imager

1
MAHI-Mars Alteration Hyperspectral Imager
Description A 1-2.5 micron imaging spectrometer
is developed for Mars landers. It combines an
Offner spectrometer with a low dark current IR
detector array that operates at Mars surface
temperatures.
Funding Profile (K)

• Technology Tasks
• Develop spectrometer
• Produce FPA electronics for lab/field testing
• Produce low temperature electronics
• Integrate focal plane and spectrometer
• Characterize system
• Employ system in field trials
• Test power consumption of TE array under Mars
  conditions
• Determine energy consumption per spectrum at spec
  SNR

FY03-FY05 Critical Milestones FY03 Complete
spectrometer FY04 Characterize system in lab and
field test FY05 Mars environment testing
2
FY04 Milestones

• Full laboratory characterization-- 8/1/04-1/31/05
• Task 5. Characterize system
• Field testing--2/05-7/05
• Task 6. Employ system in field trials

3
Technical Accomplishments

• Major technical accomplishment, FY 03
• Design and construction of major subsystems
  complete
• Spectrograph optics and hardware complete
• FPA, microdewar and electronics obtained
• Spectrograph grating complete

4
Significant Events

• Spectrograph optics complete
• All optics are completed
• Awaiting delivery of grating from JPL
• Grating is complete, funds transfer in progress

Offner spectrograph on test jig
5
Significant Events

• Focal Plane and electronics delivered
• Microdewar with integrated cooler in house
• Electronics in house

Sofradir 256x320 HgCdTe focal plane array
packaged in micro- dewar and four stage TE cooler
6
Plans for Next Quarter

• Major activities planned for next reporting
  period for this technology area
• Complete integration and checkout of spectrometer
  system
• Initiate laboratory characterization

7
Financial Status Obligations Cost
Actuals
With obligations
8
Financial Summary

• Project underspent owing to schedule slip of 2
  months
• Schedule and spending slippage planned for makeup
  in next 2 quarters