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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 -0.0022.916e-04(2.14+/-0.01)e2-0.04 +/- 0.20KIP A: PRE-COLLIMATOR PRT 1 TEMPERATURENo Violation Check
4prt1bt -2.695e-14999.000(1.48+/-0.00)e2(1.22+/-0.15)e-10KIP B: PRE-COLLIMATOR PRT 1 TEMPERATURENo Violation Check
4prt2at -0.0012.969e-04(2.13+/-0.01)e20.00 +/- 0.20KIP A: PRE-COLLIMATOR PRT 2 TEMPERATURENo Violation Check
4prt2bt -9.054e-047.575e-05(1.47+/-0.00)e20.08 +/- 0.05KIP B: PRE-COLLIMATOR PRT 2 TEMPERATURENo Violation Check
4prt3at -5.114e-056.171e-05(2.58+/-0.00)e20.01 +/- 0.04KIP A: PRE-COLLIMATOR PRT 3 TEMPERATURENo Violation Check
4prt3bt -2.067e-045.121e-05(1.48+/-0.00)e20.01 +/- 0.04KIP B: PRE-COLLIMATOR PRT 3 TEMPERATURENo Violation Check
4prt4at -0.0022.641e-04(2.16+/-0.01)e2-0.06 +/- 0.19KIP A: PRE-COLLIMATOR PRT 4 TEMPERATURENo Violation Check
4prt4bt -2.695e-14999.000(1.48+/-0.00)e2(1.22+/-0.15)e-10KIP B: PRE-COLLIMATOR PRT 4 TEMPERATURENo Violation Check
4prt5at -0.0023.406e-04(2.11+/-0.01)e20.02 +/- 0.23KIP A: PRE-COLLIMATOR PRT 5 TEMPERATURENo Violation Check
4prt5bt -1.853e-044.828e-05(1.48+/-0.00)e20.01 +/- 0.04KIP B: PRE-COLLIMATOR PRT 5 TEMPERATURENo Violation Check

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

Data Updated: May 16, 2026
Last Site Modification: Sep 30, 2021