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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 -8.977e-042.765e-04(2.14+/-0.01)e2-0.30 +/- 0.15KIP A: PRE-COLLIMATOR PRT 1 TEMPERATURENo Violation Check
4prt1bt -4.710e-13999.000(1.48+/-0.00)e2(1.67+/-0.08)e-10KIP B: PRE-COLLIMATOR PRT 1 TEMPERATURENo Violation Check
4prt2at -6.904e-042.803e-04(2.13+/-0.01)e2-0.15 +/- 0.15KIP A: PRE-COLLIMATOR PRT 2 TEMPERATURENo Violation Check
4prt2bt -9.144e-056.020e-05(1.47+/-0.00)e2-0.01 +/- 0.04KIP B: PRE-COLLIMATOR PRT 2 TEMPERATURENo Violation Check
4prt3at -1.098e-045.671e-05(2.58+/-0.00)e20.01 +/- 0.02KIP A: PRE-COLLIMATOR PRT 3 TEMPERATURENo Violation Check
4prt3bt -4.260e-046.191e-05(1.48+/-0.00)e2-0.01 +/- 0.03KIP B: PRE-COLLIMATOR PRT 3 TEMPERATURENo Violation Check
4prt4at -6.314e-042.539e-04(2.16+/-0.01)e2-0.26 +/- 0.14KIP A: PRE-COLLIMATOR PRT 4 TEMPERATURENo Violation Check
4prt4bt -4.710e-13999.000(1.48+/-0.00)e2(1.67+/-0.08)e-10KIP B: PRE-COLLIMATOR PRT 4 TEMPERATURENo Violation Check
4prt5at -0.0013.314e-04(2.11+/-0.01)e2-0.30 +/- 0.19KIP A: PRE-COLLIMATOR PRT 5 TEMPERATURENo Violation Check
4prt5bt -4.661e-046.048e-05(1.48+/-0.00)e2-0.04 +/- 0.03KIP B: PRE-COLLIMATOR PRT 5 TEMPERATURENo Violation Check

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

Data Updated: Oct 22, 2026
Last Site Modification: Sep 30, 2021