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PRECOLL
Static Version: Mean --- Last Three Months

One Week Three Month One Year Five Year Full Range Min Mean Max

Delta/Yr below is a slope of the linear fitting over the data of the period. Delta/Yr/Yr is a slope of the liner fitting over the devivative data of the period. Slope listed on a linked plot is the slope computed on the last few periods of the data to show the direction of the trend, and different from that of Delta/Yr.

MSID MeanRMSDelta/YrDelta/Yr/YrUnitDescriptionLimit Violation
4prt1at -0.0023.125e-04(2.14+/-0.01)e2-0.06 +/- 0.17KIP A: PRE-COLLIMATOR PRT 1 TEMPERATURENo Violation Check
4prt1bt -7.837e-14999.000(1.48+/-0.00)e2(1.54+/-0.05)e-10KIP B: PRE-COLLIMATOR PRT 1 TEMPERATURENo Violation Check
4prt2at -0.0013.163e-04(2.13+/-0.01)e2-0.03 +/- 0.18KIP A: PRE-COLLIMATOR PRT 2 TEMPERATURENo Violation Check
4prt2bt 2.823e-047.618e-05(1.47+/-0.00)e20.04 +/- 0.05KIP B: PRE-COLLIMATOR PRT 2 TEMPERATURENo Violation Check
4prt3at -2.261e-046.336e-05(2.58+/-0.00)e2-0.01 +/- 0.03KIP A: PRE-COLLIMATOR PRT 3 TEMPERATURENo Violation Check
4prt3bt 5.685e-045.222e-05(1.48+/-0.00)e2-0.00 +/- 0.03KIP B: PRE-COLLIMATOR PRT 3 TEMPERATURENo Violation Check
4prt4at -0.0022.819e-04(2.16+/-0.01)e2-0.08 +/- 0.16KIP A: PRE-COLLIMATOR PRT 4 TEMPERATURENo Violation Check
4prt4bt -7.837e-14999.000(1.48+/-0.00)e2(1.54+/-0.05)e-10KIP B: PRE-COLLIMATOR PRT 4 TEMPERATURENo Violation Check
4prt5at -0.0023.615e-04(2.11+/-0.01)e20.04 +/- 0.21KIP A: PRE-COLLIMATOR PRT 5 TEMPERATURENo Violation Check
4prt5bt 5.229e-044.931e-05(1.48+/-0.00)e20.01 +/- 0.02KIP B: PRE-COLLIMATOR PRT 5 TEMPERATURENo Violation Check

If you have any questions, please contact swolk@cfa.harvard.edu.

Data Updated: Jun 12, 2026
Last Site Modification: Sep 30, 2021