Observation information
- date-obs: 2022-04-16
- time-obs: 11:33:42.792500000
- date-end: 2022-04-16
- time-end: 13:50:48.787900000
- obs_id: T05_022T01_9000005070
- exposure: 2900.55430143
- sourceid: 4U 1820-30
- observer: aruberi
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T05_022T01_9000005070_35412cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35412cztM0_level2_quad_clean.evt
|
Size (bytes) | 659,836,800 | 61,960,320 |
Size | 629.3 MB
| 59.1 MB
|
Events in quadrant A | 2,876,840 | 373,258 |
Events in quadrant B | 8,105,081 | 361,983 |
Events in quadrant C | 3,687,327 | 369,032 |
Events in quadrant D | 4,906,523 | 350,832 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12392 | 3 |
B | 0 | 28077 | 2 |
C | 0 | 14575 | 2 |
D | 0 | 18708 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 124 | 0 |
B | 0 | 124 | 0 |
C | 0 | 124 | 0 |
D | 0 | 124 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 22 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6019 | 3 | 0.049842% |
B | 6019 | 2116 | 35.155341% |
C | 6019 | 125 | 2.076757% |
D | 6019 | 273 | 4.535637% |
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 | 7332 | 6020 | 0 | 0 | 0.00% | 0.00% | |
B | 7332 | 6020 | 1812 | 1812 | 24.71% | 30.10% | |
C | 7332 | 6020 | 95 | 95 | 1.30% | 1.58% | |
D | 7332 | 6020 | 224 | 224 | 3.06% | 3.72% | |
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 | 140098 | 991.88 | 696 | 681 | 140.6 |
A | 13 | 6 | 21471 | 147.91 | 696 | 681 | 140.6 |
A | 15 | 169 | 14159 | 95.89 | 696 | 681 | 140.6 |
B | 5 | 31 | 1675326 | 14330.79 | 606 | 591 | 116.9 |
B | 5 | 15 | 1671640 | 14299.25 | 606 | 591 | 116.9 |
B | 5 | 14 | 1643149 | 14055.45 | 606 | 591 | 116.9 |
C | 0 | 207 | 337620 | 2143.98 | 675 | 679 | 157.2 |
C | 0 | 10 | 297003 | 1885.53 | 675 | 679 | 157.2 |
C | 15 | 214 | 245556 | 1558.17 | 675 | 679 | 157.2 |
D | 7 | 80 | 601584 | 3624.03 | 669 | 649 | 165.8 |
D | 8 | 195 | 558784 | 3365.92 | 669 | 649 | 165.8 |
D | 12 | 233 | 237667 | 1429.37 | 669 | 649 | 165.8 |
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 | |