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: 1196.8965619
- 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.fits
| modeM0/AS1A03_117T06_9000001404cztM0_level2_quad_clean.evt
|
| Size (bytes) | 36,201,600 | 23,944,320 |
| Size | 34.5 MB
| 22.8 MB
|
| Events in quadrant A | 214,092 | 118,490 |
| Events in quadrant B | 210,952 | 121,446 |
| Events in quadrant C | 212,542 | 110,400 |
| Events in quadrant D | 187,142 | 102,383 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 282 | 0 |
| B | 0 | 282 | 0 |
| C | 0 | 278 | 0 |
| D | 0 | 280 | 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 | 3909 | 0 | 0 | 0.00% | 0.00% |  |
| B | 3927 | 3911 | 0 | 0 | 0.00% | 0.00% |  |
| C | 3927 | 3902 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3927 | 3899 | 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 | 7 | 110 | 197 | 8.79 | 55 | 52 | 16.5 |
| A | 0 | 29 | 192 | 8.49 | 55 | 52 | 16.5 |
| A | 14 | 188 | 192 | 8.49 | 55 | 52 | 16.5 |
| B | 2 | 9 | 174 | 8.84 | 55 | 52 | 13.8 |
| B | 12 | 226 | 168 | 8.41 | 55 | 52 | 13.8 |
| B | 10 | 225 | 150 | 7.1 | 55 | 52 | 13.8 |
| C | 9 | 233 | 165 | 6.77 | 56 | 52 | 16.7 |
| C | 3 | 158 | 163 | 6.65 | 56 | 52 | 16.7 |
| C | 12 | 16 | 153 | 6.05 | 56 | 52 | 16.7 |
| D | 1 | 31 | 136 | 5.41 | 53 | 47 | 16.4 |
| D | 15 | 225 | 133 | 5.23 | 53 | 47 | 16.4 |
| D | 3 | 30 | 132 | 5.17 | 53 | 47 | 16.4 |
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 |  |