Observation information
- date-obs: 2018-01-20
- time-obs: 19:18:16.460700000
- date-end: 2018-01-20
- time-end: 21:24:57.462100000
- obs_id: T01_218T01_9000001852
- exposure: 4939.88668735
- sourceid: Mrk 421
- observer: subirbhattacharyya
- ra_pnt: 166.1138
- dec_pnt: 38.20883
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_218T01_9000001852_12518cztM0_level2.evt
| modeM0/AS1T01_218T01_9000001852_12518cztM0_level2_quad_clean.evt
|
| Size (bytes) | 469,995,840 | 103,394,880 |
| Size | 448.2 MB
| 98.6 MB
|
| Events in quadrant A | 3,406,103 | 672,716 |
| Events in quadrant B | 3,717,496 | 693,936 |
| Events in quadrant C | 3,008,162 | 685,072 |
| Events in quadrant D | 3,676,065 | 641,758 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14232 | 3 |
| B | 0 | 15276 | 2 |
| C | 0 | 13235 | 2 |
| D | 0 | 14993 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6273 | 37 | 0.589829% |
| B | 6273 | 167 | 2.662203% |
| C | 6273 | 15 | 0.239120% |
| D | 6273 | 78 | 1.243424% |
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 | 7539 | 6275 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7539 | 6275 | 75 | 75 | 0.99% | 1.20% |  |
| C | 7539 | 6275 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7539 | 6275 | 31 | 31 | 0.41% | 0.49% |  |
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 | 140320 | 894.94 | 778 | 763 | 155.9 |
| A | 1 | 162 | 99941 | 636.0 | 778 | 763 | 155.9 |
| A | 1 | 178 | 58468 | 370.05 | 778 | 763 | 155.9 |
| B | 4 | 239 | 588986 | 4018.47 | 785 | 766 | 146.4 |
| B | 0 | 214 | 21990 | 144.99 | 785 | 766 | 146.4 |
| B | 12 | 111 | 16301 | 106.13 | 785 | 766 | 146.4 |
| C | 13 | 61 | 5589 | 27.04 | 770 | 774 | 178.1 |
| C | 14 | 234 | 3678 | 16.3 | 770 | 774 | 178.1 |
| C | 12 | 4 | 2799 | 11.37 | 770 | 774 | 178.1 |
| D | 1 | 52 | 576465 | 3194.86 | 751 | 730 | 180.2 |
| D | 7 | 71 | 76816 | 422.22 | 751 | 730 | 180.2 |
| D | 13 | 104 | 47329 | 258.59 | 751 | 730 | 180.2 |
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 |  |