HEAO-1 Software:
Standard Background Table for A2 Detectors
From the "User's Guide to the HEAO A-2 Data Analysis System" June 23, 1988.
Time (Day of 1977) | 232-285 | 390-410 | 485-500 | 583-588 | ||
---|---|---|---|---|---|---|
HED1 | DS1 | 6.075 | 6.07 | 5.968 | 6.042 | |
2 | 10.775 | 10.76 | 10.643 | 10.812 | ||
3 | 1.655 | 1.63 | 1.551 | 2.182 | ||
4 | 2.275 | 2.27 | 2.167 | 1.182 | ||
SUM | 20.78 | 20.73 | 20.329 | 20.598 | ||
HED2 | DS1 | 9.98 | 9.722 | 9.877 | ||
2 | 16.33 | 16.079 | 16.43 | |||
3 | 2.57 | 2.469 | 2.431 | |||
4 | 3.29 | 3.207 | 3.137 | |||
SUM | 32.29 | 32.17 | 31.477 | 31.875 | ||
MED | DS1 | 4.60 | 4.73 | 4.687 | 4.99 | |
2 | 2.66 | 2.71 | 2.655 | 2.873 | ||
3 | 2.15 | 2.17 | 2.193 | 2.265 | ||
4 | 1.25 | 1.23 | 1.202 | 1.281 | ||
SUM | 10.62 | 10.84 | 10.737 | 11.409 | ||
HED3 | DS1 | 7.155 | 7.13 | 7.024 | 6.744 | |
2 | 4.415 | 4.41 | 4.305 | 4.139 | ||
3 | 2.02 | 1.97 | 1.906 | 1.833 | ||
4 | 1.68 | 1.64 | 1.570 | 1.517 | ||
SUM | 15.27 | 15.15 | 14.805 | 14.233 | ||
The user should choose the set of background values which are closest in time to the user's input. Add or subtract the desired discovery scalar background values according to necessity.