Observation information
- date-obs: 2022-02-21
- time-obs: 04:53:45.521000000
- date-end: 2022-02-21
- time-end: 07:10:54.523100000
- obs_id: C07_014T01_9000004950
- exposure: 2773.15047979
- sourceid: Crab
- observer: arrao
- ra_pnt: 83.63321
- dec_pnt: 22.01446
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C07_014T01_9000004950_34609cztM0_level2.evt
| modeM0/AS1C07_014T01_9000004950_34609cztM0_level2_quad_clean.evt
|
Size (bytes) | 540,138,240 | 68,463,360 |
Size | 515.1 MB
| 65.3 MB
|
Events in quadrant A | 2,706,332 | 455,051 |
Events in quadrant B | 3,681,222 | 450,266 |
Events in quadrant C | 3,018,258 | 445,187 |
Events in quadrant D | 6,611,533 | 368,968 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 104 | 0 |
B | 0 | 104 | 0 |
C | 0 | 104 | 0 |
D | 0 | 104 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 32 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10766 | 3 |
B | 0 | 14058 | 2 |
C | 0 | 11845 | 2 |
D | 0 | 23265 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5034 | 11 | 0.218514% |
B | 5034 | 289 | 5.740961% |
C | 5034 | 77 | 1.529599% |
D | 5034 | 807 | 16.030989% |
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 | 7007 | 5035 | 1 | 1 | 0.01% | 0.02% | |
B | 7007 | 5035 | 173 | 173 | 2.47% | 3.44% | |
C | 7007 | 5035 | 48 | 48 | 0.69% | 0.95% | |
D | 7007 | 5035 | 756 | 756 | 10.79% | 15.01% | |
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 | 10 | 83 | 43933 | 318.66 | 685 | 676 | 135.7 |
A | 13 | 6 | 9313 | 63.63 | 685 | 676 | 135.7 |
A | 13 | 254 | 9290 | 63.46 | 685 | 676 | 135.7 |
B | 5 | 172 | 815605 | 6420.97 | 668 | 655 | 126.9 |
B | 4 | 170 | 120714 | 945.94 | 668 | 655 | 126.9 |
B | 5 | 255 | 35753 | 276.54 | 668 | 655 | 126.9 |
C | 15 | 214 | 215967 | 1440.87 | 647 | 656 | 149.4 |
C | 0 | 10 | 167700 | 1117.87 | 647 | 656 | 149.4 |
C | 14 | 67 | 51065 | 337.34 | 647 | 656 | 149.4 |
D | 8 | 195 | 2029545 | 12379.88 | 610 | 600 | 163.9 |
D | 7 | 223 | 1229584 | 7498.81 | 610 | 600 | 163.9 |
D | 7 | 38 | 624536 | 3807.03 | 610 | 600 | 163.9 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
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|
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 | |
_ROLL_ROT | |
_Roll_DEC | |
_Roll_RA | |
Veto Counter | |