Observation information
- date-obs: 2022-05-20
- time-obs: 13:39:01.715700000
- date-end: 2022-05-20
- time-end: 16:13:04.711600000
- obs_id: A11_080T01_9000005146
- exposure: 3421.6281382
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_080T01_9000005146_35917cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35917cztM0_level2_quad_clean.evt
|
Size (bytes) | 487,851,840 | 79,781,760 |
Size | 465.3 MB
| 76.1 MB
|
Events in quadrant A | 2,907,211 | 531,974 |
Events in quadrant B | 4,553,648 | 474,415 |
Events in quadrant C | 3,188,623 | 519,813 |
Events in quadrant D | 3,741,145 | 493,944 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 36 | 0 |
B | 0 | 36 | 0 |
C | 0 | 36 | 0 |
D | 0 | 36 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 116 | 0 |
B | 0 | 116 | 0 |
C | 0 | 116 | 0 |
D | 0 | 116 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12033 | 3 |
B | 0 | 17131 | 2 |
C | 0 | 12642 | 2 |
D | 0 | 14640 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5658 | 23 | 0.406504% |
B | 5658 | 688 | 12.159774% |
C | 5658 | 135 | 2.386002% |
D | 5658 | 182 | 3.216684% |
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 | 9243 | 5660 | 9 | 9 | 0.10% | 0.16% | |
B | 9243 | 5659 | 500 | 500 | 5.41% | 8.84% | |
C | 9243 | 5660 | 92 | 92 | 1.00% | 1.63% | |
D | 9243 | 5660 | 124 | 124 | 1.34% | 2.19% | |
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 | 172378 | 1234.29 | 677 | 665 | 139.1 |
A | 15 | 169 | 93268 | 665.64 | 677 | 665 | 139.1 |
A | 13 | 6 | 14575 | 99.99 | 677 | 665 | 139.1 |
B | 5 | 172 | 1867341 | 15432.08 | 633 | 620 | 121.0 |
B | 5 | 255 | 92062 | 755.95 | 633 | 620 | 121.0 |
B | 0 | 213 | 39668 | 322.81 | 633 | 620 | 121.0 |
C | 0 | 10 | 349229 | 2289.64 | 649 | 656 | 152.2 |
C | 15 | 214 | 235680 | 1543.78 | 649 | 656 | 152.2 |
C | 0 | 207 | 70710 | 460.16 | 649 | 656 | 152.2 |
D | 13 | 249 | 318183 | 1980.25 | 646 | 630 | 160.4 |
D | 8 | 195 | 289884 | 1803.78 | 646 | 630 | 160.4 |
D | 2 | 250 | 254952 | 1585.94 | 646 | 630 | 160.4 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
|
|
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 | |