Observation information
- date-obs: 2017-01-20
- time-obs: 22:55:42.848000000
- date-end: 2017-01-21
- time-end: 00:53:56.088800000
- obs_id: A02_090T01_9000000970
- exposure: 3673.43878914
- sourceid: Crab
- observer: tanmoy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A02_090T01_9000000970_07118cztM0_level2.evt
| modeM0/AS1A02_090T01_9000000970_07118cztM0_level2_quad_clean.evt
|
| Size (bytes) | 408,136,320 | 83,404,800 |
| Size | 389.2 MB
| 79.5 MB
|
| Events in quadrant A | 2,797,608 | 534,159 |
| Events in quadrant B | 3,059,222 | 543,203 |
| Events in quadrant C | 2,801,471 | 532,567 |
| Events in quadrant D | 3,295,153 | 497,664 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12344 | 2 |
| B | 0 | 13127 | 1 |
| C | 0 | 12294 | 1 |
| D | 0 | 13904 | 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 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5984 | 19 | 0.317513% |
| B | 5984 | 37 | 0.618316% |
| C | 5984 | 12 | 0.200535% |
| D | 5984 | 64 | 1.069519% |
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 | 7094 | 5985 | 5 | 5 | 0.07% | 0.08% |  |
| B | 7094 | 5984 | 3 | 3 | 0.04% | 0.05% |  |
| C | 7094 | 5985 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7094 | 5985 | 41 | 41 | 0.58% | 0.69% |  |
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 | 14 | 111 | 25133 | 167.92 | 711 | 699 | 145.5 |
| A | 14 | 238 | 18906 | 125.12 | 711 | 699 | 145.5 |
| A | 8 | 15 | 11598 | 74.9 | 711 | 699 | 145.5 |
| B | 0 | 219 | 105578 | 763.11 | 722 | 706 | 137.4 |
| B | 0 | 214 | 58602 | 421.28 | 722 | 706 | 137.4 |
| B | 3 | 220 | 36372 | 259.53 | 722 | 706 | 137.4 |
| C | 4 | 254 | 55968 | 339.48 | 698 | 703 | 162.8 |
| C | 8 | 128 | 11278 | 64.96 | 698 | 703 | 162.8 |
| C | 8 | 112 | 5525 | 29.62 | 698 | 703 | 162.8 |
| D | 2 | 216 | 353311 | 2044.14 | 690 | 668 | 172.5 |
| D | 8 | 195 | 268746 | 1553.95 | 690 | 668 | 172.5 |
| D | 2 | 14 | 26843 | 151.73 | 690 | 668 | 172.5 |
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 |  |