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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 0.0032.664e-04(2.14+/-0.01)e2-0.31 +/- 0.20KIP A: PRE-COLLIMATOR PRT 1 TEMPERATURENo Violation Check
4prt1bt -8.303e-13999.000(1.48+/-0.00)e2(1.78+/-0.11)e-10KIP B: PRE-COLLIMATOR PRT 1 TEMPERATURENo Violation Check
4prt2at 0.0032.740e-04(2.13+/-0.01)e2-0.29 +/- 0.19KIP A: PRE-COLLIMATOR PRT 2 TEMPERATURENo Violation Check
4prt2bt 7.107e-047.734e-05(1.47+/-0.00)e2-0.06 +/- 0.06KIP B: PRE-COLLIMATOR PRT 2 TEMPERATURENo Violation Check
4prt3at 6.369e-045.870e-05(2.58+/-0.00)e2-0.03 +/- 0.04KIP A: PRE-COLLIMATOR PRT 3 TEMPERATURENo Violation Check
4prt3bt 1.622e-044.726e-05(1.48+/-0.00)e20.03 +/- 0.03KIP B: PRE-COLLIMATOR PRT 3 TEMPERATURENo Violation Check
4prt4at 0.0032.357e-04(2.16+/-0.01)e2-0.23 +/- 0.18KIP A: PRE-COLLIMATOR PRT 4 TEMPERATURENo Violation Check
4prt4bt 1.098e-077.078e-08(1.48+/-0.00)e2(1.78+/-0.11)e-10KIP B: PRE-COLLIMATOR PRT 4 TEMPERATURENo Violation Check
4prt5at 0.0033.176e-04(2.11+/-0.01)e2-0.31 +/- 0.22KIP A: PRE-COLLIMATOR PRT 5 TEMPERATURENo Violation Check
4prt5bt 1.466e-044.533e-05(1.48+/-0.00)e20.03 +/- 0.03KIP B: PRE-COLLIMATOR PRT 5 TEMPERATURENo Violation Check

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

Data Updated: Mar 10, 2026
Last Site Modification: Sep 30, 2021