Last modified: 8 July 2019

URL: https://cxc.cfa.harvard.edu/csc/data_products/persrc/stk/draws3.html

CSC Source Region Per-Stack Detections MLE Draws Files (draws3.fits)

The draws files contain a sample of 5001 locations from the posterior probability distribution. This sample has been used for calculating the source position errors. The draws are available for each energy band with a source detection.

The stacked observations MLE draws FITS file is named: 〈i〉〈s〉〈stkpos〉_〈stkver〉N〈v〉_〈r〉〈b〉_draws3.fits

where 〈i〉 is the instrument designation; 〈s〉 is the data source; 〈stkpos〉 is the position component of the stack name, formatted as "Jhhmmsss{p|m}ddmmss"; 〈stkver〉 is the 3-digit version component of the stack name, formatted with leading zeros; 〈v〉 is the data product version number; 〈r〉 is the region ID, formatted as "rnnnn", where nnnn is the 4-digit region number, formatted with leading zeros; and 〈b〉 is the energy band designation.


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