Observation information
- date-obs: 2018-02-01
- time-obs: 01:24:12.998500000
- date-end: 2018-02-01
- time-end: 03:23:16.998600000
- obs_id: A04_174T01_9000001876
- exposure: 3775.62651957
- 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_9000001876_12684cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12684cztM0_level2_quad_clean.evt
|
| Size (bytes) | 507,542,400 | 85,507,200 |
| Size | 484.0 MB
| 81.5 MB
|
| Events in quadrant A | 3,189,597 | 545,973 |
| Events in quadrant B | 4,967,576 | 503,735 |
| Events in quadrant C | 3,188,462 | 545,389 |
| Events in quadrant D | 3,560,785 | 517,461 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14053 | 2 |
| B | 0 | 19205 | 1 |
| C | 0 | 14104 | 1 |
| D | 0 | 15431 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6834 | 44 | 0.643840% |
| B | 6834 | 625 | 9.145449% |
| C | 6834 | 23 | 0.336553% |
| D | 6834 | 152 | 2.224173% |
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 | 7144 | 6834 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7145 | 6835 | 463 | 463 | 6.48% | 6.77% |  |
| C | 7144 | 6834 | 4 | 4 | 0.06% | 0.06% |  |
| D | 7145 | 6835 | 137 | 137 | 1.92% | 2.00% |  |
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 | 12 | 189 | 36626 | 212.21 | 816 | 800 | 168.8 |
| A | 8 | 15 | 13954 | 77.91 | 816 | 800 | 168.8 |
| A | 0 | 226 | 7231 | 38.09 | 816 | 800 | 168.8 |
| B | 4 | 239 | 1720288 | 11493.81 | 779 | 762 | 149.6 |
| B | 3 | 64 | 43054 | 282.69 | 779 | 762 | 149.6 |
| B | 0 | 214 | 36715 | 240.32 | 779 | 762 | 149.6 |
| C | 15 | 208 | 68389 | 364.04 | 796 | 802 | 185.7 |
| C | 14 | 234 | 10813 | 53.92 | 796 | 802 | 185.7 |
| C | 13 | 61 | 5867 | 27.28 | 796 | 802 | 185.7 |
| D | 1 | 52 | 445084 | 2379.47 | 778 | 760 | 186.7 |
| D | 10 | 199 | 106760 | 567.65 | 778 | 760 | 186.7 |
| D | 2 | 234 | 26367 | 137.13 | 778 | 760 | 186.7 |
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 |  |