1. Chandra Calibration Status ACIS 1.Gain correction files for epochs 33 and 34 were released in CALDB 3.4.5 (June 2008) and 3.5.0 (Sep. 2008). HETG 1. An order separation file (OSIP) for an ACIS operating temperature of T=-110 C was released in CALDB 3.5.0. New calibration products releases since last CUC meeting.

2. New HRC-S Gain Map using SAMPS and LETG/HRC-S Background Filtering

3. HRC-I Energy Resolution using SAMPS

4. Updated HRC-S QE Uniformity Map Absorbed power-law model fit to Mkn421 HRC-S QEU Version 3 HRC-S QEU Version 4

5. Update on ACIS Filter Contamination

6. ACIS Flight Grades ACIS CC-Mode Calibration CC-Mode calibration continues using trap maps appropriate for CC-mode data. This approach does not require any new software.

7. Plot from the IACHEC Meeting comparing MOS, PN, and ACIS spectral fitting results in the 2-7 keV band for a sample of 7 clusters. HRMA Calibration Projects

8. Comparison of ACIS derived temperatures in a broad band, a hard band and from the H-like to He-like Fe K alpha line ratio.

9. XRCF at MSFC

10. Two corrections have been applied to the predictions of the raytrace code since XRCF. Empirical XRCF correction HRMA overlayer of 22A

11. Fits to the continuum source at XRCF with a variable depth for the overlayer on each shell 28A 20A 18A 27A

12. HRMA Model A

13. HRMA Model F

14. The Coma Cluster Model F kT = 8.3 keV

15. Comparison between ACIS and MOS derived Cluster Temperatures

16. XMM-Newton – Hard Band vs. Broad Band Temperatures

17. Cross-Calibration with E0102-72

18. Cluster Flux and Temperature Comparison

19. Things to do  Continue testing HRMA effective area models with in-flight imaging and gratings data.  Adjust the HETG gratings transmission efficiency and the HRC-S QE accordingly.  Validate the in-flight HRMA effective area model with gratings and cluster data.