Observation information
- date-obs: 2017-07-27
- time-obs: 08:08:14.915000000
- date-end: 2017-07-27
- time-end: 08:46:44.916400000
- obs_id: A03_117T06_9000001404
- exposure: 1608.52307136
- sourceid: 4U 1957+115
- observer: dipak
- ra_pnt: 299.8509
- dec_pnt: 11.709
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A03_117T06_9000001404cztM0_level2_bc.evt
| modeM0/AS1A03_117T06_9000001404cztM0_level2_quad_clean.evt
|
Size (bytes) | 105,808,320 | 36,023,040 |
Size | 100.9 MB
| 34.4 MB
|
Events in quadrant A | 721,182 | 203,302 |
Events in quadrant B | 722,266 | 210,985 |
Events in quadrant C | 732,477 | 205,586 |
Events in quadrant D | 757,700 | 198,849 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 266 | 0 |
B | 0 | 264 | 0 |
C | 0 | 262 | 0 |
D | 0 | 263 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 8322 | 0 |
B | 0 | 8318 | 0 |
C | 0 | 8361 | 0 |
D | 0 | 8348 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 80 | 0 |
B | 0 | 80 | 0 |
C | 0 | 78 | 0 |
D | 0 | 80 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 3825 | 244 | 6.379085% |
B | 3848 | 247 | 6.418919% |
C | 3830 | 151 | 3.942559% |
D | 3824 | 169 | 4.419456% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 3927 | 3919 | 0 | 0 | 0.00% | 0.00% |  |
B | 3927 | 3915 | 0 | 0 | 0.00% | 0.00% |  |
C | 3927 | 3917 | 0 | 0 | 0.00% | 0.00% |  |
D | 3927 | 3912 | 0 | 0 | 0.00% | 0.00% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 13 | 251 | 12502 | 290.84 | 182 | 177 | 42.4 |
A | 15 | 239 | 4831 | 109.82 | 182 | 177 | 42.4 |
A | 12 | 194 | 1263 | 25.63 | 182 | 177 | 42.4 |
B | 0 | 229 | 3698 | 91.09 | 188 | 182 | 38.6 |
B | 8 | 61 | 1315 | 29.35 | 188 | 182 | 38.6 |
B | 0 | 219 | 1057 | 22.67 | 188 | 182 | 38.6 |
C | 4 | 254 | 16944 | 396.55 | 181 | 176 | 42.3 |
C | 14 | 67 | 1753 | 37.29 | 181 | 176 | 42.3 |
C | 9 | 221 | 1114 | 22.18 | 181 | 176 | 42.3 |
D | 8 | 195 | 33797 | 687.71 | 179 | 171 | 48.9 |
D | 2 | 16 | 17160 | 347.46 | 179 | 171 | 48.9 |
D | 2 | 234 | 14582 | 294.73 | 179 | 171 | 48.9 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |