Observation information
- date-obs: 2018-01-21
- time-obs: 17:53:16.407300000
- date-end: 2018-01-21
- time-end: 20:05:28.398900000
- obs_id: A04_230T01_9000001854
- exposure: 3070.99996164
- sourceid: Her X-1
- observer: sumanbala
- ra_pnt: 254.4575
- dec_pnt: 35.34233
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_230T01_9000001854_12532cztM0_level2.evt
| modeM0/AS1A04_230T01_9000001854_12532cztM0_level2_quad_clean.evt
|
| Size (bytes) | 491,644,800 | 67,478,400 |
| Size | 468.9 MB
| 64.4 MB
|
| Events in quadrant A | 3,620,202 | 400,661 |
| Events in quadrant B | 3,390,029 | 405,708 |
| Events in quadrant C | 3,172,922 | 406,585 |
| Events in quadrant D | 4,271,062 | 382,640 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15031 | 3 |
| B | 0 | 14295 | 2 |
| C | 0 | 13709 | 2 |
| D | 0 | 17266 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6408 | 43 | 0.671036% |
| B | 6408 | 54 | 0.842697% |
| C | 6408 | 27 | 0.421348% |
| D | 6408 | 185 | 2.887016% |
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 | 7644 | 6410 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7644 | 6410 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7644 | 6410 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7644 | 6410 | 92 | 92 | 1.20% | 1.44% |  |
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 | 1 | 162 | 146694 | 877.54 | 826 | 812 | 166.2 |
| A | 1 | 178 | 86439 | 515.08 | 826 | 812 | 166.2 |
| A | 1 | 161 | 72335 | 430.24 | 826 | 812 | 166.2 |
| B | 4 | 239 | 81131 | 519.46 | 827 | 810 | 154.6 |
| B | 0 | 205 | 35095 | 221.73 | 827 | 810 | 154.6 |
| B | 0 | 230 | 27213 | 170.76 | 827 | 810 | 154.6 |
| C | 13 | 61 | 5855 | 26.99 | 812 | 819 | 186.6 |
| C | 3 | 233 | 4653 | 20.55 | 812 | 819 | 186.6 |
| C | 3 | 0 | 3203 | 12.78 | 812 | 819 | 186.6 |
| D | 1 | 52 | 958791 | 5039.61 | 796 | 777 | 190.1 |
| D | 8 | 195 | 97275 | 507.63 | 796 | 777 | 190.1 |
| D | 13 | 112 | 81056 | 422.31 | 796 | 777 | 190.1 |
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 |  |