Observation information
- date-obs: 2022-02-20
- time-obs: 09:43:45.495900000
- date-end: 2022-02-20
- time-end: 12:02:10.498200000
- obs_id: C07_014T01_9000004950
- exposure: 4294.46186931
- 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_34597cztM0_level2.evt
| modeM0/AS1C07_014T01_9000004950_34597cztM0_level2_quad_clean.evt
|
Size (bytes) | 514,022,400 | 101,724,480 |
Size | 490.2 MB
| 97.0 MB
|
Events in quadrant A | 2,599,045 | 717,543 |
Events in quadrant B | 3,229,384 | 704,634 |
Events in quadrant C | 2,813,162 | 692,337 |
Events in quadrant D | 6,596,032 | 624,248 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 100 | 0 |
B | 0 | 100 | 0 |
C | 0 | 100 | 0 |
D | 0 | 100 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 34 | 0 |
B | 0 | 34 | 0 |
C | 0 | 34 | 0 |
D | 0 | 35 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10525 | 3 |
B | 0 | 12482 | 2 |
C | 0 | 11162 | 2 |
D | 0 | 23022 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4873 | 9 | 0.184691% |
B | 4873 | 224 | 4.596758% |
C | 4873 | 39 | 0.800328% |
D | 4873 | 336 | 6.895136% |
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 | 7025 | 4874 | 0 | 0 | 0.00% | 0.00% | |
B | 7025 | 4874 | 147 | 147 | 2.09% | 3.02% | |
C | 7025 | 4874 | 27 | 27 | 0.38% | 0.55% | |
D | 7025 | 4874 | 433 | 433 | 6.16% | 8.88% | |
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 | 42839 | 319.57 | 656 | 647 | 132.0 |
A | 9 | 143 | 18722 | 136.9 | 656 | 647 | 132.0 |
A | 13 | 254 | 8634 | 60.49 | 656 | 647 | 132.0 |
B | 5 | 172 | 633713 | 5266.71 | 634 | 622 | 120.2 |
B | 0 | 189 | 23121 | 187.17 | 634 | 622 | 120.2 |
B | 5 | 255 | 15482 | 123.62 | 634 | 622 | 120.2 |
C | 15 | 214 | 210632 | 1468.77 | 618 | 626 | 143.0 |
C | 0 | 10 | 118255 | 822.69 | 618 | 626 | 143.0 |
C | 14 | 67 | 30002 | 205.45 | 618 | 626 | 143.0 |
D | 8 | 195 | 3609109 | 23576.43 | 616 | 601 | 153.1 |
D | 2 | 249 | 120496 | 783.34 | 616 | 601 | 153.1 |
D | 13 | 249 | 118982 | 773.45 | 616 | 601 | 153.1 |
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 | |