Observation information
- date-obs: 2020-09-13
- time-obs: 19:47:05.391900000
- date-end: 2020-09-13
- time-end: 22:13:50.388000000
- obs_id: A09_145T01_9000003866
- exposure: 4484.93335646
- 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_9000003866_26831cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003866_26831cztM0_level2_quad_clean.evt
|
| Size (bytes) | 613,388,160 | 100,949,760 |
| Size | 585.0 MB
| 96.3 MB
|
| Events in quadrant A | 3,659,890 | 662,790 |
| Events in quadrant B | 3,803,152 | 670,352 |
| Events in quadrant C | 3,558,123 | 647,040 |
| Events in quadrant D | 7,081,724 | 589,766 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15390 | 0 |
| B | 0 | 15656 | 0 |
| C | 0 | 14787 | 0 |
| D | 0 | 25827 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6990 | 61 | 0.872675% |
| B | 6991 | 117 | 1.673580% |
| C | 6991 | 109 | 1.559147% |
| D | 6991 | 1100 | 15.734516% |
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 | 8805 | 6991 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8806 | 6992 | 34 | 34 | 0.39% | 0.49% |  |
| C | 8806 | 6992 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8805 | 6992 | 858 | 858 | 9.74% | 12.27% |  |
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 | 191746 | 1044.89 | 898 | 880 | 182.7 |
| A | 13 | 254 | 12027 | 61.02 | 898 | 880 | 182.7 |
| A | 3 | 137 | 8458 | 41.49 | 898 | 880 | 182.7 |
| B | 3 | 64 | 158507 | 920.13 | 896 | 875 | 171.3 |
| B | 7 | 205 | 59728 | 343.54 | 896 | 875 | 171.3 |
| B | 0 | 189 | 25664 | 144.7 | 896 | 875 | 171.3 |
| C | 14 | 238 | 139874 | 680.26 | 867 | 876 | 204.3 |
| C | 8 | 128 | 11621 | 52.59 | 867 | 876 | 204.3 |
| C | 15 | 208 | 8816 | 38.86 | 867 | 876 | 204.3 |
| D | 1 | 52 | 2088323 | 10462.69 | 830 | 811 | 199.5 |
| D | 15 | 36 | 877052 | 4391.75 | 830 | 811 | 199.5 |
| D | 7 | 80 | 672914 | 3368.61 | 830 | 811 | 199.5 |
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 |  |