Key sensors that would be needed are an accelerometer, gyroscope (or an imu), arduino (lillypad or mini?), and some sort of wireless communication device such as an xbee or bluetooth module. If it becomes too difficult to place the arduino into the football, we can use xbees to communicate wirelessly between a computer and the football.
Timeline Sunday:
--XBee communicationsGet IMU/Altitude meter communication running
--Finish electronics part besides soldering and packaging into a football (do steps 1,2,3)
--Late Sunday: some planning for packaging in the football, check the bladder situation