Observation information
- date-obs: 2018-01-19
- time-obs: 15:36:26.397100000
- date-end: 2018-01-19
- time-end: 17:36:18.402400000
- obs_id: A04_174T01_9000001850
- exposure: 4477.81094989
- 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_9000001850_12500cztM0_level2.evt
| modeM0/AS1A04_174T01_9000001850_12500cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,714,240 | 96,572,160 |
| Size | 447.0 MB
| 92.1 MB
|
| Events in quadrant A | 3,612,200 | 627,578 |
| Events in quadrant B | 3,634,962 | 629,787 |
| Events in quadrant C | 2,921,919 | 633,607 |
| Events in quadrant D | 3,598,644 | 594,468 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14889 | 2 |
| B | 0 | 14842 | 1 |
| C | 0 | 12882 | 1 |
| D | 0 | 15132 | 1 |
| 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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6292 | 98 | 1.557533% |
| B | 6292 | 210 | 3.337572% |
| C | 6292 | 31 | 0.492689% |
| D | 6292 | 114 | 1.811825% |
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 | 7193 | 6293 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7193 | 6294 | 118 | 118 | 1.64% | 1.87% |  |
| C | 7193 | 6294 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7193 | 6293 | 62 | 62 | 0.86% | 0.99% |  |
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 | 1 | 162 | 187866 | 1177.53 | 770 | 755 | 158.9 |
| A | 12 | 189 | 142613 | 892.74 | 770 | 755 | 158.9 |
| A | 1 | 178 | 111859 | 699.2 | 770 | 755 | 158.9 |
| B | 4 | 239 | 508927 | 3427.05 | 762 | 743 | 148.3 |
| B | 0 | 214 | 41065 | 271.92 | 762 | 743 | 148.3 |
| B | 11 | 51 | 31001 | 204.05 | 762 | 743 | 148.3 |
| C | 14 | 234 | 5844 | 29.46 | 748 | 756 | 172.7 |
| C | 13 | 61 | 5361 | 26.67 | 748 | 756 | 172.7 |
| C | 8 | 222 | 1895 | 6.6 | 748 | 756 | 172.7 |
| D | 1 | 52 | 549950 | 3052.07 | 745 | 726 | 180.0 |
| D | 7 | 71 | 89241 | 491.88 | 745 | 726 | 180.0 |
| D | 13 | 249 | 46869 | 256.42 | 745 | 726 | 180.0 |
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 |  |