G-LiHT v.2: Instruments & Specifications

Airplane and instrument diagram

Designed to study composition, structure, and function of terrestrial surfaces using scanning LiDAR, Hyperspectral, and Thermal infrared imaging.

  1. Dual Scanning LiDARs
  2. VNIR Imaging Spectroscopy
  3. Broad Band Thermal Imaging
  4. High Resolution Aerial Photos
  5. Precision GPS-INS
*Specific trade names are for informational purposes only and do not constitute an endorsement by NASA.


1. Dual Scanning LiDAR: Riegl VQ 480i

Dual Riegl VQ 480i installation diagram

  • NIR 1550 nm Laser
  • 300 kHz Pulse Repetition Rate
  • 0.3 mrad Laser Beam Divergence
  • Real Time Waveform Processing
  • Point Density up to 12 pt/m2
  • Manufacturer Datasheet


2. VNIR Imaging Spectroscopy

Diagram of VNIR swaths

  Micro-Hyperspec E-Series FIREFLY
Spectral bands Up to 375 w/o binning 2160
Spectral range 400nm-1000nm sampled at 1.6nm w/o binning 670nm-780nm sampled at 0.05nm
Spectral resolution 5nm FWHM ≤ 0.18nm FWHM
Swath width 420m swath with a 64° FOV and up to 1600 spatial samples Telecentric 25mm lens with a 23.5° FOV and up to 1600 cross track spatial samples

3. Broad Band Thermal Imaging: Xenics Gobi-640

Xenics Gobi-640 Thermal Camera

  • Uncooled Microbolometer
  • 640 x 480 px resolution
  • Spectral Band 8 to 15 µm
  • Horizontal FOV 42.6°
  • 50 Hz frame rate

4. High Resolution Aerial Photos: Phase One IXU-R 1000

Phase One IXU-R 1000

  • Phase One IXU-R 1000
  • Rodenstock 50mm f/4.0 lens
  • 56.2° x 43.7° FOV
  • Ground Sampling Distance: 4cm
  • GPS-IMU Synchronization
  • 1 Hz frame rate
  • 100 Megapixels


5. Precision GPS-INS: Applanix POS AV V6

Applanix POS AV V6 GPS/INS
  • Airborne Real Time Direct Georeferencing at 200Hz
  • POSPac MMS with Center Point RTX Post Porcessing
  • 10cm horizontal & 20cm vertical position accuracies