Observation information
- date-obs: 2018-07-18
- time-obs: 20:16:32.371400000
- date-end: 2018-07-18
- time-end: 22:27:25.377100000
- obs_id: A04_218T08_9000002236
- exposure: 4498.79640949
- sourceid: SWIFT J1921.1-5842
- observer: gulabd
- ra_pnt: 290.3089
- dec_pnt: -58.67037
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_218T08_9000002236_15168cztM0_level2.evt
| modeM0/AS1A04_218T08_9000002236_15168cztM0_level2_quad_clean.evt
|
| Size (bytes) | 451,831,680 | 101,240,640 |
| Size | 430.9 MB
| 96.6 MB
|
| Events in quadrant A | 3,768,877 | 654,869 |
| Events in quadrant B | 3,305,202 | 682,820 |
| Events in quadrant C | 3,224,953 | 671,341 |
| Events in quadrant D | 2,966,340 | 627,212 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15380 | 3 |
| B | 0 | 13756 | 2 |
| C | 0 | 13377 | 2 |
| D | 0 | 13073 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6157 | 51 | 0.828325% |
| B | 6157 | 85 | 1.380542% |
| C | 6157 | 16 | 0.259867% |
| D | 6157 | 24 | 0.389800% |
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 | 7508 | 6159 | 13 | 13 | 0.17% | 0.21% |  |
| B | 7508 | 6159 | 22 | 22 | 0.29% | 0.36% |  |
| C | 7508 | 6159 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7508 | 6159 | 13 | 13 | 0.17% | 0.21% |  |
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 | 15 | 239 | 526953 | 3403.55 | 768 | 754 | 154.6 |
| A | 0 | 253 | 235000 | 1515.14 | 768 | 754 | 154.6 |
| A | 12 | 189 | 39120 | 248.16 | 768 | 754 | 154.6 |
| B | 3 | 64 | 137962 | 943.88 | 783 | 765 | 145.4 |
| B | 0 | 230 | 41982 | 283.56 | 783 | 765 | 145.4 |
| B | 0 | 197 | 24163 | 160.97 | 783 | 765 | 145.4 |
| C | 3 | 233 | 230140 | 1323.57 | 758 | 764 | 173.3 |
| C | 9 | 236 | 34968 | 197.37 | 758 | 764 | 173.3 |
| C | 13 | 61 | 5409 | 26.8 | 758 | 764 | 173.3 |
| D | 5 | 222 | 55008 | 303.28 | 741 | 718 | 179.0 |
| D | 10 | 70 | 33823 | 184.93 | 741 | 718 | 179.0 |
| D | 2 | 234 | 23309 | 126.2 | 741 | 718 | 179.0 |
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 |  |