The paper has a nice diagram and detail on the Aqua satellite. Has three key instruments: the Atmospheric Infrared Sounder (AIRS) , Advanced Microwave Sounding Unit (AMSU) and Humidity Sounder for Brazil (HSB).
Builder is TRW Space and Electronics , Redondo Beach, CA Size is 26 feet, weight is 6,484 pounds, Electrical power is 4,600 watts, solar panels , orbit is polar at 438 miles high, life span is 6 years. I'll see what else Google can find for me!