0.5s to extend out to 20 s, thus ensuring nearly all thermal energy is accounted for.  Utilizing this approach, Wasp Prime was determined to have a thermal yield of 1.4 kt. The historical quoted value of the thermal yield of Wasp Prime is 1.6 kt.9 Tesla was determined to have a thermal yield of 2.6 kt. The historical quoted thermal yield of Tesla is 2.5 kt.9 Both results agree well with historical values and provide further supporting evidence that temperature calculations determined by the two-dimensional power method are consistent with historical data."