The standard background is then adjusted corresponding to the gain conversion factor, re-normalized to the slew spectrum and subtracted. Quality A quality flag is used to indicate the quality of the background subtraction. This name usually corresponds to the target name as specified by the original observer. If a source has been observed by different observers it may be entered under two or more names. This is listed as yr.day, where yr is the last two digits of the year and day is the day of the year, e.g., day 300 of 1984 is 84.300.
Times are accurate to the nearest second.
The end time of the observation. The count rate in the 3-10 keV band, corrected for dead time. Other count rates are available, viz. The Right Ascension of the target. Dec The Declination of the target.