Observation information
- date-obs: 2018-07-10
- time-obs: 20:46:48.267800000
- date-end: 2018-07-10
- time-end: 22:51:42.268500000
- obs_id: T02_060T01_9000002216
- exposure: 4084.20208395
- sourceid: Maxi J1820+070
- observer: aarthy
- ra_pnt: 275.091
- dec_pnt: 7.185631
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_060T01_9000002216_15049cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15049cztM0_level2_quad_clean.evt
|
| Size (bytes) | 447,465,600 | 90,912,960 |
| Size | 426.7 MB
| 86.7 MB
|
| Events in quadrant A | 3,163,645 | 580,422 |
| Events in quadrant B | 3,362,920 | 597,461 |
| Events in quadrant C | 3,581,308 | 576,208 |
| Events in quadrant D | 3,009,827 | 553,653 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13631 | 2 |
| B | 0 | 14020 | 1 |
| C | 0 | 14692 | 1 |
| D | 0 | 13361 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6384 | 45 | 0.704887% |
| B | 6384 | 75 | 1.174812% |
| C | 6384 | 46 | 0.720551% |
| D | 6384 | 49 | 0.767544% |
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 | 7495 | 6385 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7495 | 6385 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7495 | 6385 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7495 | 6385 | 7 | 7 | 0.09% | 0.11% |  |
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 | 12 | 189 | 47726 | 292.32 | 790 | 774 | 160.6 |
| A | 1 | 162 | 29998 | 181.95 | 790 | 774 | 160.6 |
| A | 15 | 239 | 17338 | 103.12 | 790 | 774 | 160.6 |
| B | 10 | 16 | 187168 | 1225.65 | 793 | 774 | 152.1 |
| B | 3 | 64 | 49776 | 322.22 | 793 | 774 | 152.1 |
| B | 4 | 173 | 18436 | 116.14 | 793 | 774 | 152.1 |
| C | 3 | 233 | 450109 | 2508.64 | 771 | 778 | 179.1 |
| C | 7 | 247 | 124817 | 692.52 | 771 | 778 | 179.1 |
| C | 13 | 61 | 5596 | 26.9 | 771 | 778 | 179.1 |
| D | 10 | 70 | 71010 | 378.13 | 768 | 745 | 185.8 |
| D | 2 | 234 | 20283 | 105.14 | 768 | 745 | 185.8 |
| D | 2 | 136 | 18303 | 94.49 | 768 | 745 | 185.8 |
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 |  |