There have been some slight temperature violations of the limits imposed by the parameters reflecting the temperature sensors T2007, T2015 and T2023 on the RGS1 chain and T2031, T2039 and T2047 on the RGS2 chain. The current limits, set early in the mission, are T = [18, 22] deg in all cases. Some of the temperatures have been occasionally above those temperatures by few tenths of a degree. Those violations are meaningless and do not affect the data quality. Therefore we took the decision to

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... rease slightly the upper limit to 22.5 degrees. The CCF files RGS1 HKPARMINT 0015 and RGS2 HKPARMINT 0013 are identical to the CCFs RGS1 HKPARMINT 0013 and RGS2 HKPARMINT 0012, except for the upper limit of the mentioned parameters, set now by 22.5 degrees. 3 Scientific Impact of this Update It will be possible to derive valid GTIs using HKGTIGEN for RGS1 and RGS2 data in the periods when the RGS temperature sensors were slightly above 22.0 degrees.