Observation information
- date-obs: 2018-08-18
- time-obs: 09:15:04.763200000
- date-end: 2018-08-18
- time-end: 09:59:40.076300000
- obs_id: T02_086T01_9000002316
- exposure: 759.044805482
- sourceid: 4U 1636-536
- observer: sudip
- ra_pnt: 250.2312
- dec_pnt: -53.75139
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_086T01_9000002316_15619cztM0_level2.evt
| modeM0/AS1T02_086T01_9000002316_15619cztM0_level2_quad_clean.evt
|
| Size (bytes) | 112,982,400 | 18,066,240 |
| Size | 107.7 MB
| 17.2 MB
|
| Events in quadrant A | 873,315 | 110,559 |
| Events in quadrant B | 833,134 | 113,239 |
| Events in quadrant C | 814,294 | 106,885 |
| Events in quadrant D | 799,501 | 108,025 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28 | 0 |
| B | 0 | 28 | 0 |
| C | 0 | 28 | 0 |
| D | 0 | 28 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3452 | 2 |
| B | 0 | 3344 | 1 |
| C | 0 | 3229 | 1 |
| D | 0 | 3204 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1461 | 132 | 9.034908% |
| B | 1461 | 136 | 9.308693% |
| C | 1461 | 149 | 10.198494% |
| D | 1461 | 111 | 7.597536% |
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 | 2677 | 1462 | 3 | 3 | 0.11% | 0.21% |  |
| B | 2677 | 1462 | 0 | 0 | 0.00% | 0.00% |  |
| C | 2677 | 1462 | 0 | 0 | 0.00% | 0.00% |  |
| D | 2677 | 1462 | 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 | 15 | 157 | 70917 | 1629.98 | 208 | 203 | 43.4 |
| A | 0 | 226 | 1770 | 36.12 | 208 | 203 | 43.4 |
| A | 12 | 194 | 1637 | 33.05 | 208 | 203 | 43.4 |
| B | 3 | 64 | 27062 | 645.52 | 205 | 199 | 41.6 |
| B | 0 | 214 | 5820 | 135.07 | 205 | 199 | 41.6 |
| B | 12 | 111 | 4673 | 107.51 | 205 | 199 | 41.6 |
| C | 14 | 238 | 30329 | 628.3 | 200 | 199 | 48.0 |
| C | 13 | 61 | 1369 | 24.4 | 200 | 199 | 48.0 |
| C | 3 | 233 | 1062 | 18.0 | 200 | 199 | 48.0 |
| D | 2 | 234 | 4886 | 90.31 | 207 | 199 | 51.9 |
| D | 2 | 136 | 4496 | 82.79 | 207 | 199 | 51.9 |
| D | 3 | 238 | 3528 | 64.14 | 207 | 199 | 51.9 |
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 |  |