  A new probabilistic model for protons has been created using episode
integrated fluences. This model will allow the user to choose a mission start
date, mission duration, and confidence level to construct a mission-specific,
bounding case spectrum for proton fluences at a distance of 1 $AU$ from the
sun. A new database of episode integrated fluences will be created for this
model. The database will contain 29 channels that span the energy range
0.88-485 $MeV$. This database will cover the period from November 1, 1973 to
December 31, 2013, making it the largest database on solar activity.
