AJAX_instruments_page.jpg

Commercial ozone and greenhouse gas sensors modified for flight, as well as the Meteorological Measurement System Instrument
Electrical distribution and interface panels designed and constructed by NASA Ames personnel
GPS position, pressure, temperature and water vapor also available
Down-looking video

	Picarro Greenhouse Gas Sensor Commercial unit (model 2301-m) measures carbon dioxide (CO2), methane (CH4), and water vapor in ambient air (0.5 Hz) using cavity ring-down spectroscopy. Instrument has been repackaged to meet environmental and safety specifications and to fit wing-mounted payload pod.
Ozone Sensor Commercial unit (2B Technology Model 205) measures ozone (O3) in ambient air (0.5 Hz) using UV absorption. Modifications include biration isolators, UV lamp heaters, upgrade of pressure sensor, temperature controlled box, replacement of fittings to meet aircraft operating conditions and requirements.
	MMS The Meteorological Measurement Systems (MMS), an ARC- developed provides very accurate pressure, temperature, and 3-D wind data. (Left: instrument ismounted in wing pod.)

The instruments are housed in the starboard external wing pod. Each has a separate inlet and has been tested under a wide variety of flight maneuvers.	AJAX team members mount the instrumented wing pod onto the Alpha Jet in preparation for a research flight.