Observation information
- date-obs: 2022-05-17
- time-obs: 18:05:21.856300000
- date-end: 2022-05-17
- time-end: 20:19:49.852000000
- obs_id: A11_080T01_9000005146
- exposure: 4677.7645797
- 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_35875cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35875cztM0_level2_quad_clean.evt
|
Size (bytes) | 522,043,200 | 102,274,560 |
Size | 497.9 MB
| 97.5 MB
|
Events in quadrant A | 3,651,612 | 691,002 |
Events in quadrant B | 3,289,785 | 688,002 |
Events in quadrant C | 4,414,470 | 660,796 |
Events in quadrant D | 4,054,749 | 645,454 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 22 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 120 | 0 |
B | 0 | 120 | 0 |
C | 0 | 120 | 0 |
D | 0 | 120 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14625 | 3 |
B | 0 | 13365 | 2 |
C | 0 | 16707 | 2 |
D | 0 | 16248 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5900 | 34 | 0.576271% |
B | 5900 | 46 | 0.779661% |
C | 5900 | 326 | 5.525424% |
D | 5900 | 96 | 1.627119% |
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 | 7213 | 5901 | 21 | 21 | 0.29% | 0.36% | |
B | 7213 | 5901 | 27 | 27 | 0.37% | 0.46% | |
C | 7213 | 5901 | 330 | 330 | 4.58% | 5.59% | |
D | 7213 | 5901 | 75 | 75 | 1.04% | 1.27% | |
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 | 7 | 48 | 602586 | 4136.02 | 710 | 699 | 145.5 |
A | 10 | 83 | 168749 | 1154.8 | 710 | 699 | 145.5 |
A | 15 | 169 | 99528 | 679.13 | 710 | 699 | 145.5 |
B | 5 | 172 | 271732 | 1992.56 | 701 | 683 | 136.0 |
B | 0 | 213 | 90454 | 659.93 | 701 | 683 | 136.0 |
B | 5 | 255 | 77792 | 566.85 | 701 | 683 | 136.0 |
C | 0 | 207 | 1234023 | 7764.89 | 678 | 685 | 158.8 |
C | 15 | 214 | 242436 | 1522.02 | 678 | 685 | 158.8 |
C | 0 | 10 | 197610 | 1239.81 | 678 | 685 | 158.8 |
D | 8 | 195 | 758149 | 4427.85 | 686 | 670 | 171.1 |
D | 13 | 249 | 147141 | 856.2 | 686 | 670 | 171.1 |
D | 2 | 250 | 132775 | 772.22 | 686 | 670 | 171.1 |
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 |
|
|
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 | |