Observation information
- date-obs: 2022-05-19
- time-obs: 11:55:21.767700000
- date-end: 2022-05-19
- time-end: 14:06:37.762900000
- obs_id: A11_080T01_9000005146
- exposure: 2363.78814764
- 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_35901cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35901cztM0_level2_quad_clean.evt
|
Size (bytes) | 421,099,200 | 61,148,160 |
Size | 401.6 MB
| 58.3 MB
|
Events in quadrant A | 2,723,268 | 386,999 |
Events in quadrant B | 3,184,418 | 371,646 |
Events in quadrant C | 2,857,181 | 375,612 |
Events in quadrant D | 3,641,197 | 359,149 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27 | 0 |
B | 0 | 27 | 0 |
C | 0 | 27 | 0 |
D | 0 | 28 | 0 |
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 M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10949 | 3 |
B | 0 | 12460 | 2 |
C | 0 | 11140 | 2 |
D | 0 | 14447 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5108 | 11 | 0.215348% |
B | 5108 | 172 | 3.367267% |
C | 5108 | 70 | 1.370399% |
D | 5108 | 107 | 2.094753% |
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 | 7171 | 5109 | 4 | 4 | 0.06% | 0.08% | |
B | 7171 | 5109 | 113 | 113 | 1.58% | 2.21% | |
C | 7171 | 5109 | 49 | 49 | 0.68% | 0.96% | |
D | 7171 | 5109 | 79 | 79 | 1.10% | 1.55% | |
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 | 162285 | 1240.81 | 643 | 633 | 130.3 |
A | 15 | 169 | 43141 | 326.28 | 643 | 633 | 130.3 |
A | 7 | 3 | 16882 | 124.72 | 643 | 633 | 130.3 |
B | 5 | 172 | 448014 | 3782.24 | 626 | 613 | 118.3 |
B | 5 | 255 | 223961 | 1888.14 | 626 | 613 | 118.3 |
B | 0 | 213 | 23942 | 197.22 | 626 | 613 | 118.3 |
C | 0 | 10 | 224403 | 1570.93 | 618 | 625 | 142.4 |
C | 15 | 214 | 215543 | 1508.73 | 618 | 625 | 142.4 |
C | 6 | 255 | 8802 | 57.4 | 618 | 625 | 142.4 |
D | 8 | 195 | 409249 | 2757.5 | 616 | 602 | 148.2 |
D | 13 | 153 | 203114 | 1366.53 | 616 | 602 | 148.2 |
D | 2 | 250 | 133160 | 894.49 | 616 | 602 | 148.2 |
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 | |