Observation information
- date-obs: 2018-01-30
- time-obs: 10:46:36.225800000
- date-end: 2018-01-30
- time-end: 13:06:08.020300000
- obs_id: A04_174T01_9000001876
- exposure: 4419.86340827
- 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_12660cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001876_12660cztM0_level2_quad_clean.evt
|
| Size (bytes) | 524,753,280 | 96,399,360 |
| Size | 500.4 MB
| 91.9 MB
|
| Events in quadrant A | 3,288,353 | 632,802 |
| Events in quadrant B | 5,091,089 | 591,046 |
| Events in quadrant C | 3,521,099 | 625,471 |
| Events in quadrant D | 3,535,806 | 601,780 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13953 | 3 |
| B | 0 | 19310 | 2 |
| C | 0 | 14762 | 2 |
| D | 0 | 15081 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6709 | 96 | 1.430914% |
| B | 6709 | 711 | 10.597705% |
| C | 6709 | 131 | 1.952601% |
| D | 6709 | 88 | 1.311671% |
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 | 7690 | 6710 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7690 | 6710 | 528 | 528 | 6.87% | 7.87% |  |
| C | 7690 | 6710 | 60 | 60 | 0.78% | 0.89% |  |
| D | 7690 | 6710 | 7 | 7 | 0.09% | 0.10% |  |
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 | 8 | 15 | 27022 | 150.17 | 847 | 831 | 174.4 |
| A | 12 | 189 | 8574 | 44.4 | 847 | 831 | 174.4 |
| A | 0 | 226 | 7500 | 38.24 | 847 | 831 | 174.4 |
| B | 4 | 239 | 1742422 | 11213.18 | 807 | 789 | 155.3 |
| B | 11 | 51 | 92880 | 592.91 | 807 | 789 | 155.3 |
| B | 3 | 64 | 34771 | 218.79 | 807 | 789 | 155.3 |
| C | 15 | 208 | 327583 | 1732.46 | 815 | 823 | 188.6 |
| C | 14 | 234 | 12715 | 63.05 | 815 | 823 | 188.6 |
| C | 13 | 61 | 5980 | 27.34 | 815 | 823 | 188.6 |
| D | 10 | 157 | 300416 | 1521.48 | 816 | 794 | 196.9 |
| D | 1 | 52 | 42229 | 210.41 | 816 | 794 | 196.9 |
| D | 13 | 104 | 35425 | 175.86 | 816 | 794 | 196.9 |
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 |  |