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PCA SAA History File Production Resumes

February 1, 2008

Production of the PCA SAA History file, used for PCA background generation, has resumed. Users can retrieve the file from the usual area: ftp://legacy.gsfc.nasa.gov/xte/calib_data/pca_bkgd/pca_saa_history.gz This notice officially rescinds the earlier news item about the PCA SAA History file (released Jan. 22, 2008).


Temporary Interruption of PCA SAA History File Production

January 22, 2008

Production of the PCA SAA History file, used for PCA background generation, has been temporarily interrupted. The latest file available contains PCA SAA History data up through January 20, 2008. To analyze PCA data beyond that date, please use the predictive SAA history file, located in the same part of the XTE FTP area:

ftp://legacy.gsfc.nasa.gov/xte/calib_data/pca_bkgd/pca_saa_predict.gz

A similar notice will be posted when PCA SAA History file production resumes.


ASM Source Intensity Errors for Sources in Crowded Fields (infrequent but significant)

January 2008

Notice:

A significant problem with a small number of ASM source intensities in the light curve of a Galactic X-ray source has recently come to attention. Please see the "Important Caveat" section of the MIT ASM light curves page.



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