Observation information
- date-obs: 2022-05-18
- time-obs: 18:35:21.804400000
- date-end: 2022-05-18
- time-end: 20:42:36.800700000
- obs_id: A11_080T01_9000005146
- exposure: 4621.45862389
- 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_35890cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35890cztM0_level2_quad_clean.evt
|
Size (bytes) | 606,824,640 | 99,757,440 |
Size | 578.7 MB
| 95.1 MB
|
Events in quadrant A | 2,979,016 | 689,633 |
Events in quadrant B | 5,295,923 | 644,920 |
Events in quadrant C | 3,100,987 | 676,551 |
Events in quadrant D | 6,601,221 | 595,990 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17 | 0 |
B | 0 | 17 | 0 |
C | 0 | 17 | 0 |
D | 0 | 18 | 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 | 12445 | 3 |
B | 0 | 19670 | 2 |
C | 0 | 12606 | 2 |
D | 0 | 23695 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5918 | 8 | 0.135181% |
B | 5918 | 884 | 14.937479% |
C | 5918 | 53 | 0.895573% |
D | 5918 | 1050 | 17.742481% |
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 | 7200 | 5919 | 0 | 0 | 0.00% | 0.00% | |
B | 7200 | 5919 | 634 | 634 | 8.81% | 10.71% | |
C | 7200 | 5919 | 34 | 34 | 0.47% | 0.57% | |
D | 7200 | 5919 | 1027 | 1027 | 14.26% | 17.35% | |
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 | 169582 | 1168.65 | 708 | 697 | 144.5 |
A | 15 | 169 | 31601 | 213.85 | 708 | 697 | 144.5 |
A | 7 | 3 | 23058 | 154.73 | 708 | 697 | 144.5 |
B | 5 | 63 | 1822435 | 14050.85 | 667 | 652 | 129.7 |
B | 5 | 172 | 440479 | 3392.25 | 667 | 652 | 129.7 |
B | 5 | 255 | 229054 | 1761.59 | 667 | 652 | 129.7 |
C | 15 | 214 | 250386 | 1553.77 | 686 | 692 | 160.7 |
C | 0 | 10 | 132138 | 817.95 | 686 | 692 | 160.7 |
C | 0 | 207 | 46302 | 283.82 | 686 | 692 | 160.7 |
D | 12 | 227 | 2966759 | 18574.81 | 650 | 634 | 159.7 |
D | 1 | 52 | 501855 | 3138.8 | 650 | 634 | 159.7 |
D | 8 | 195 | 206958 | 1292.07 | 650 | 634 | 159.7 |
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 | |