The original thermoelastic response of the mirror was documented in T970212, using the IDEAS finite element code. The analysis was redone using ANSYS and an analytical (series expansion); These two approaches agree with each other fairly well. The new results are similar to the original steadystate calculations in the original T970212x0. The new results are uploaded to T970212v1. While the characteristic time for the thermal response of the mirror (assuming only radiative coupling, no conduction) is ~190 sec (~3 minutes), the thermal response and thermoelastic deflection are at 90% of the steadystate value in ~30 seconds.
