Observation information
- date-obs: 2018-01-17
- time-obs: 20:06:55.279800000
- date-end: 2018-01-17
- time-end: 22:00:48.283800000
- obs_id: A04_174T01_9000001850
- exposure: 3326.75588151
- sourceid: Crab
- observer: mithunnps
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_174T01_9000001850_12474cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12474cztM0_level2_quad_clean.evt
|
| Size (bytes) | 668,404,800 | 78,272,640 |
| Size | 637.4 MB
| 74.6 MB
|
| Events in quadrant A | 9,324,594 | 461,128 |
| Events in quadrant B | 3,402,317 | 526,286 |
| Events in quadrant C | 2,646,475 | 521,696 |
| Events in quadrant D | 4,488,980 | 466,632 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31595 | 2 |
| B | 0 | 13639 | 1 |
| C | 0 | 11562 | 1 |
| D | 0 | 17130 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 114 | 0 |
| B | 0 | 114 | 0 |
| C | 0 | 114 | 0 |
| D | 0 | 114 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5633 | 1880 | 33.374756% |
| B | 5633 | 210 | 3.728031% |
| C | 5633 | 21 | 0.372803% |
| D | 5633 | 414 | 7.349547% |
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 | 6834 | 5634 | 1385 | 1385 | 20.27% | 24.58% |  |
| B | 6834 | 5635 | 114 | 114 | 1.67% | 2.02% |  |
| C | 6834 | 5635 | 0 | 0 | 0.00% | 0.00% |  |
| D | 6834 | 5635 | 372 | 372 | 5.44% | 6.60% |  |
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 | 13 | 251 | 6080205 | 47449.81 | 629 | 619 | 128.1 |
| A | 0 | 23 | 568218 | 4429.98 | 629 | 619 | 128.1 |
| A | 12 | 189 | 67294 | 520.38 | 629 | 619 | 128.1 |
| B | 4 | 239 | 456900 | 3515.98 | 689 | 675 | 129.8 |
| B | 3 | 64 | 169920 | 1304.32 | 689 | 675 | 129.8 |
| B | 0 | 214 | 15690 | 115.72 | 689 | 675 | 129.8 |
| C | 13 | 61 | 5041 | 27.78 | 678 | 682 | 156.9 |
| C | 3 | 233 | 3415 | 17.42 | 678 | 682 | 156.9 |
| C | 8 | 222 | 1987 | 8.32 | 678 | 682 | 156.9 |
| D | 1 | 52 | 1908059 | 12053.29 | 654 | 638 | 158.2 |
| D | 7 | 71 | 60686 | 379.45 | 654 | 638 | 158.2 |
| D | 2 | 234 | 21246 | 130.23 | 654 | 638 | 158.2 |
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 |  |