Observation information
- date-obs: 2015-10-22
- time-obs: 05:10:35.502100000
- date-end: 2015-10-22
- time-end: 13:09:15.490600000
- obs_id: P01_161T01_9000000048
- exposure: 6906.57110738
- sourceid: Crab
- observer: parag
- ra_pnt: 83.63321
- dec_pnt: 22.01447
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1P01_161T01_9000000048cztM0_level2_bc.evt
| modeM0/AS1P01_161T01_9000000048cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,012,662,720 | 143,141,760 |
Size | 965.8 MB
| 136.5 MB
|
Events in quadrant A | 7,421,706 | 779,887 |
Events in quadrant B | 11,959,490 | 717,351 |
Events in quadrant C | 3,527,640 | 796,644 |
Events in quadrant D | 6,494,380 | 764,502 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 77 | 0 |
B | 0 | 77 | 0 |
C | 0 | 77 | 0 |
D | 0 | 77 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 101768 | 0 |
B | 0 | 109791 | 0 |
C | 0 | 76040 | 0 |
D | 0 | 85494 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 380 | 0 |
B | 0 | 380 | 0 |
C | 0 | 380 | 0 |
D | 0 | 380 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 18497 | 2161 | 11.682976% |
B | 18497 | 3637 | 19.662648% |
C | 18497 | 4 | 0.021625% |
D | 18497 | 559 | 3.022112% |
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 | 27728 | 18498 | 138 | 138 | 0.50% | 0.75% | |
B | 27728 | 18498 | 559 | 559 | 2.02% | 3.02% | |
C | 27728 | 18498 | 0 | 0 | 0.00% | 0.00% | |
D | 27728 | 18476 | 98 | 98 | 0.35% | 0.53% | |
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 | 69 | 3529419 | 21550.47 | 811 | 799 | 163.7 |
A | 0 | 238 | 319824 | 1948.39 | 811 | 799 | 163.7 |
A | 12 | 243 | 202876 | 1234.15 | 811 | 799 | 163.7 |
B | 2 | 2 | 8159438 | 57763.0 | 810 | 790 | 141.2 |
B | 0 | 230 | 93897 | 659.2 | 810 | 790 | 141.2 |
B | 4 | 82 | 59114 | 412.93 | 810 | 790 | 141.2 |
C | 5 | 234 | 43289 | 242.62 | 847 | 837 | 175.0 |
C | 1 | 1 | 29361 | 163.02 | 847 | 837 | 175.0 |
C | 0 | 207 | 19871 | 108.78 | 847 | 837 | 175.0 |
D | 2 | 152 | 432838 | 2389.15 | 831 | 813 | 180.8 |
D | 7 | 85 | 394872 | 2179.2 | 831 | 813 | 180.8 |
D | 13 | 7 | 328679 | 1813.14 | 831 | 813 | 180.8 |
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 |
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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 | |
Veto Counter | |