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SpecTIR Hyperspectral Airborne Experiment 2012

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Home » Sensors » WASP

Wildfire Airborne Sensor Program (WASP)

About WASP

WASP's mission is the detection and monitoring of wildfires from an aircraft at an altitude of up to 12,000 feet. WASP is adaptable for other Infrared or visible remote sensing applications as well. It consists of three infrared cameras and one visible camera, and has the capability to geo-reference and generate data products and then send them down to the ground station while the aircraft is still flying over the target area.

WASP Aircraft (Piper Navajo):
A twin-engine Piper Navajo airplane used to fly WASP Instruments

WASP has three Indigo Phoenix infrared imagers and one Geospatial Systems KCM-11 high-resolution visible camera mounted in the sensor head that looks down through a hole in the aircraft. It also has positioning devices to determine the exact position and orientation of the imagers and aircraft when each image is captured. The platform has two holes allowing for simultaneous collection from a second instrument, such as the Leica LIDAR system.

Infrared spectral bands:
WASP's infrared cameras cover three different ranges of the infrared spectrum

The IR images cover three bands in the infrared; short-, mid- and long-wave. They acquire 640x512 14 bit images. The KCM-11 acquires 11-megapixel color images over roughly the same space on the ground.

WASP Sensor Head (Installed):
The sensor head containing the cameras and IMU installed in the aircraft just before flight.
Speed and Resolution

The entire assembly can acquire one stack of images every 2 seconds. At a notional ground speed of 130 knots, approximately 4,600 acres/hr can be imaged depending on flight line configurations and ground resolution requirements.

The image data acquired can also be passed through a georectification process in real time. All four cameras are also aligned and correlated together so that the 6 bands of image data acquired (3 IR, Red, Green, Blue) can be processed together. This multi spectral image stack allows the end user many options for the observation of ground based events.

The images are associated to each other using positioning measurements taken from IMU and GPS sensors processed by an Applanix position and orientation system. Geo-rectification software uses this data, along with a DEM of the local terrain, to correlate the imagery to precise locations on the ground.

For more information, visit the DIRS WASP Page »

WASP

Sensor WASP VNIR WASP SWIR WASP MWIR WASP LWIR
Operator RIT RIT RIT RIT
Sensor Type Frame Frame Frame Frame
Field of view / scan angle (deg) 36 36 36 36
Spectral band(s) 3 (RGB) 1 1 1
Spectral coverage (nm) 450 - 900 900-1500 3000 - 5000 8000 - 9200
Sensor format (linear / frame) 4000 x 2672 640 x 512 640 x 512 640 x 512
IFOV (mrad) 0.18 1 1 1
Nominal operating altitude (ft AGL) 2,000 2,000 2,000 2,000
Effective GSD (cm) 15 90 90 90
Quantization (bits) 12 14 14 14
Aircraft type / operator PA-31/Kucera PA-31/Kucera PA-31/Kucera PA-31/Kucera
INS/GPS Applanix 310 Applanix 310 Applanix 310 Applanix 310
Center look angle for collect (deg) 0 0 0 0
Sensor WASP VNIR
Operator RIT
Sensor Type Frame
Field of view / scan angle (deg) 36
Spectral band(s) 3 (RGB)
Spectral coverage (nm) 450 - 900
Sensor format (linear / frame) 4000 x 2672
IFOV (mrad) 0.18
Nominal operating altitude (ft AGL) 2,000
Effective GSD (cm) 15
Quantization (bits) 11
Aircraft type / operator PA-31/Kucera
INS/GPS Applanix 310
Center look angle for collect (deg) 0

Sensor WASP SWIR
Operator RIT
Sensor Type Frame
Field of view / scan angle (deg) 36
Spectral band(s) 1
Spectral coverage (nm) 900-1500
Sensor format (linear / frame) 640 x 512
IFOV (mrad) 1
Nominal operating altitude (ft AGL) 2,000
Effective GSD (cm) 90
Quantization (bits) 14
Aircraft type / operator PA-31/Kucera
INS/GPS Applanix 310
Center look angle for collect (deg) 0

Sensor WASP MWIR
Operator RIT
Sensor Type Frame
Field of view / scan angle (deg) 36
Spectral band(s) 1
Spectral coverage (nm) 3000 - 5000
Sensor format (linear / frame) 640 x 512
IFOV (mrad) 1
Nominal operating altitude (ft AGL) 2,000
Effective GSD (cm)90
Quantization (bits) 14
Aircraft type / operator PA-31/Kucera
INS/GPS Applanix 310
Center look angle for collect (deg) 0

Sensor WASP LWIR
Operator RIT
Sensor Type Frame
Field of view / scan angle (deg) 36
Spectral band(s) 1
Spectral coverage (nm) 8000 - 9200
Sensor format (linear / frame) 640 x 512
IFOV (mrad) 1
Nominal operating altitude (ft AGL) 2,000
Effective GSD (cm) 90
Quantization (bits) 14
Aircraft type / operator PA-31/Kucera
INS/GPS Applanix 310
Center look angle for collect (deg) 0