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GRADPCOLB
Static Version: Mean --- Full Range

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
hpcolbgrd1 0.7400.236-2.93 +/- 180.27(6.70+/-10.19)e-5KRT8-RT9: HRMA Precollimator BaffleNo Violation
hpcolbgrd2 -0.6650.2152.60 +/- 164.86-(4.59+/-11.38)e-5KRT9-RT10: HRMA Precollimator BaffleNo Violation

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

Data Updated: Feb 04, 2026
Last Site Modification: Sep 30, 2021