I need an estimate of the market for hyperspectral imagers over the
next 1-5 years (total number of units bought would be fine).  In
addition, I could use historical data as well (I
don't have access to the Aerospace Corp's paper and it is no longer on
their website).

I don't want an estimate of the market for providing hyperspectral
imaging services, just an idea of the market for the imagers
themselves with some justification.