Observation information
- date-obs: 2020-09-01
- time-obs: 20:44:54.820700000
- date-end: 2020-09-01
- time-end: 22:51:22.818000000
- obs_id: A09_145T01_9000003848
- exposure: 4545.32572421
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_145T01_9000003848_26654cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003848_26654cztM0_level2_quad_clean.evt
|
| Size (bytes) | 608,950,080 | 100,399,680 |
| Size | 580.7 MB
| 95.7 MB
|
| Events in quadrant A | 3,688,579 | 657,778 |
| Events in quadrant B | 4,428,835 | 640,886 |
| Events in quadrant C | 3,730,810 | 632,154 |
| Events in quadrant D | 6,108,709 | 610,713 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15431 | 0 |
| B | 0 | 17500 | 0 |
| C | 0 | 15385 | 0 |
| D | 0 | 23073 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 4 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7163 | 39 | 0.544465% |
| B | 7164 | 331 | 4.620324% |
| C | 7163 | 122 | 1.703197% |
| D | 7163 | 333 | 4.648890% |
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 | 7588 | 7164 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7589 | 7165 | 230 | 230 | 3.03% | 3.21% |  |
| C | 7588 | 7164 | 17 | 17 | 0.22% | 0.24% |  |
| D | 7588 | 7164 | 219 | 219 | 2.89% | 3.06% |  |
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 | 0 | 13 | 212402 | 1163.45 | 898 | 881 | 181.8 |
| A | 13 | 254 | 11894 | 60.58 | 898 | 881 | 181.8 |
| A | 3 | 137 | 8098 | 39.7 | 898 | 881 | 181.8 |
| B | 10 | 245 | 890419 | 5282.03 | 879 | 859 | 168.4 |
| B | 3 | 112 | 31964 | 184.7 | 879 | 859 | 168.4 |
| B | 12 | 111 | 19823 | 112.6 | 879 | 859 | 168.4 |
| C | 15 | 208 | 147425 | 719.93 | 860 | 866 | 203.6 |
| C | 14 | 238 | 135043 | 659.1 | 860 | 866 | 203.6 |
| C | 3 | 233 | 47007 | 226.65 | 860 | 866 | 203.6 |
| D | 7 | 80 | 2273649 | 10669.34 | 856 | 832 | 213.0 |
| D | 2 | 250 | 202477 | 946.59 | 856 | 832 | 213.0 |
| D | 1 | 52 | 140870 | 657.38 | 856 | 832 | 213.0 |
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 |  |