Observation information
- date-obs: 2022-02-21
- time-obs: 03:13:45.519500000
- date-end: 2022-02-21
- time-end: 05:30:41.521200000
- obs_id: C07_014T01_9000004950
- exposure: 2465.40325177
- 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_34608cztM0_level2.evt
| modeM0/AS1C07_014T01_9000004950_34608cztM0_level2_quad_clean.evt
|
Size (bytes) | 564,655,680 | 60,811,200 |
Size | 538.5 MB
| 58.0 MB
|
Events in quadrant A | 2,749,237 | 387,251 |
Events in quadrant B | 3,883,681 | 381,701 |
Events in quadrant C | 3,123,157 | 381,796 |
Events in quadrant D | 6,980,391 | 313,144 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 110 | 0 |
B | 0 | 110 | 0 |
C | 0 | 110 | 0 |
D | 0 | 110 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28 | 0 |
B | 0 | 28 | 0 |
C | 0 | 28 | 0 |
D | 0 | 29 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11177 | 3 |
B | 0 | 14837 | 2 |
C | 0 | 12290 | 2 |
D | 0 | 24550 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5381 | 7 | 0.130087% |
B | 5381 | 345 | 6.411448% |
C | 5381 | 69 | 1.282290% |
D | 5381 | 1003 | 18.639658% |
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 | 7234 | 5382 | 0 | 0 | 0.00% | 0.00% | |
B | 7234 | 5382 | 223 | 223 | 3.08% | 4.14% | |
C | 7234 | 5382 | 45 | 45 | 0.62% | 0.84% | |
D | 7234 | 5382 | 883 | 883 | 12.21% | 16.41% | |
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 | 44237 | 311.97 | 697 | 684 | 139.6 |
A | 13 | 254 | 9805 | 65.33 | 697 | 684 | 139.6 |
A | 15 | 174 | 6964 | 44.98 | 697 | 684 | 139.6 |
B | 5 | 172 | 1070332 | 8283.02 | 677 | 661 | 129.1 |
B | 5 | 255 | 58330 | 446.56 | 677 | 661 | 129.1 |
B | 4 | 170 | 56231 | 430.31 | 677 | 661 | 129.1 |
C | 15 | 214 | 228294 | 1488.15 | 665 | 673 | 153.0 |
C | 0 | 10 | 158023 | 1028.73 | 665 | 673 | 153.0 |
C | 14 | 67 | 84088 | 545.35 | 665 | 673 | 153.0 |
D | 8 | 195 | 1801637 | 10688.78 | 613 | 602 | 168.5 |
D | 7 | 38 | 846880 | 5022.49 | 613 | 602 | 168.5 |
D | 7 | 223 | 577135 | 3421.61 | 613 | 602 | 168.5 |
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 |
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|
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 | |