Observation information
- date-obs: 2020-09-28
- time-obs: 11:54:52.199800000
- date-end: 2020-09-28
- time-end: 14:03:58.014800000
- obs_id: A09_120T02_9000003904
- exposure: 2950.31654605
- sourceid: Crab
- observer: avishek
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_120T02_9000003904_27048cztM0_level2.evt
| modeM0/AS1A09_120T02_9000003904_27048cztM0_level2_quad_clean.evt
|
| Size (bytes) | 720,429,120 | 71,657,280 |
| Size | 687.1 MB
| 68.3 MB
|
| Events in quadrant A | 6,716,982 | 384,914 |
| Events in quadrant B | 6,526,633 | 444,858 |
| Events in quadrant C | 3,432,582 | 440,053 |
| Events in quadrant D | 4,680,630 | 423,939 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24430 | 0 |
| B | 0 | 23613 | 0 |
| C | 0 | 14150 | 0 |
| D | 0 | 18320 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6821 | 1359 | 19.923765% |
| B | 6822 | 1423 | 20.858986% |
| C | 6822 | 104 | 1.524480% |
| D | 6822 | 202 | 2.961009% |
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 | 7746 | 6821 | 898 | 898 | 11.59% | 13.17% |  |
| B | 7746 | 6821 | 1077 | 1077 | 13.90% | 15.79% |  |
| C | 7747 | 6822 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7747 | 6822 | 148 | 148 | 1.91% | 2.17% |  |
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 | 235 | 3560101 | 21797.97 | 812 | 794 | 163.3 |
| A | 8 | 192 | 15512 | 90.14 | 812 | 794 | 163.3 |
| A | 13 | 254 | 10505 | 59.47 | 812 | 794 | 163.3 |
| B | 0 | 189 | 3087688 | 19536.69 | 817 | 799 | 158.0 |
| B | 10 | 246 | 145154 | 913.61 | 817 | 799 | 158.0 |
| B | 3 | 112 | 46447 | 288.9 | 817 | 799 | 158.0 |
| C | 14 | 238 | 136276 | 682.35 | 842 | 850 | 198.5 |
| C | 15 | 208 | 10480 | 48.52 | 842 | 850 | 198.5 |
| C | 13 | 61 | 5733 | 24.6 | 842 | 850 | 198.5 |
| D | 1 | 52 | 995969 | 4892.41 | 845 | 823 | 203.4 |
| D | 2 | 250 | 447163 | 2194.33 | 845 | 823 | 203.4 |
| D | 2 | 234 | 29876 | 142.83 | 845 | 823 | 203.4 |
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 |  |