Observation information
- date-obs: 2022-02-20
- time-obs: 04:38:45.493400000
- date-end: 2022-02-20
- time-end: 06:48:01.494200000
- obs_id: C07_014T01_9000004950
- exposure: 2793.30425522
- 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_34594cztM0_level2.evt
| modeM0/AS1C07_014T01_9000004950_34594cztM0_level2_quad_clean.evt
|
Size (bytes) | 435,101,760 | 68,227,200 |
Size | 414.9 MB
| 65.1 MB
|
Events in quadrant A | 2,697,612 | 439,279 |
Events in quadrant B | 3,463,799 | 435,872 |
Events in quadrant C | 2,980,997 | 430,555 |
Events in quadrant D | 3,690,208 | 404,400 |
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 | 26 | 0 |
B | 0 | 26 | 0 |
C | 0 | 26 | 0 |
D | 0 | 27 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10796 | 3 |
B | 0 | 13303 | 2 |
C | 0 | 11906 | 2 |
D | 0 | 14498 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5073 | 20 | 0.394244% |
B | 5073 | 294 | 5.795387% |
C | 5073 | 29 | 0.571654% |
D | 5073 | 56 | 1.103883% |
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 | 6985 | 5074 | 4 | 4 | 0.06% | 0.08% | |
B | 6985 | 5074 | 182 | 182 | 2.61% | 3.59% | |
C | 6985 | 5074 | 24 | 24 | 0.34% | 0.47% | |
D | 6985 | 5074 | 45 | 45 | 0.64% | 0.89% | |
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 | 9 | 143 | 45449 | 330.99 | 673 | 664 | 135.3 |
A | 10 | 83 | 43190 | 314.29 | 673 | 664 | 135.3 |
A | 13 | 254 | 10096 | 69.71 | 673 | 664 | 135.3 |
B | 5 | 172 | 598649 | 4827.5 | 655 | 642 | 123.9 |
B | 5 | 255 | 160410 | 1289.75 | 655 | 642 | 123.9 |
B | 0 | 189 | 34118 | 270.24 | 655 | 642 | 123.9 |
C | 15 | 214 | 216270 | 1450.0 | 642 | 650 | 148.7 |
C | 0 | 10 | 84729 | 565.41 | 642 | 650 | 148.7 |
C | 14 | 67 | 76104 | 507.41 | 642 | 650 | 148.7 |
D | 8 | 195 | 815327 | 4751.6 | 637 | 625 | 171.5 |
D | 5 | 223 | 91003 | 527.11 | 637 | 625 | 171.5 |
D | 13 | 249 | 56076 | 323.41 | 637 | 625 | 171.5 |
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 |
|
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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 | |