Hmmm, I not if you mean acceptable from your standpoint or acceptable from the predictors standpoint. If it is from the predictors standpoint, then I think we are talking about the predictor define windows for time, place, mag. If its from your stanpoint, then we are asking the predictor to provide a singe time, a single point, and a single mag, then adding your acceptable deviations from those paramters. Not sure from which perspective your refering to.

Michael