Observation information
- date-obs: 2022-05-16
- time-obs: 08:53:41.925600000
- date-end: 2022-05-16
- time-end: 11:14:51.920400000
- obs_id: A11_080T01_9000005146
- exposure: 2147.93578218
- 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_35855cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35855cztM0_level2_quad_clean.evt
|
Size (bytes) | 466,185,600 | 59,584,320 |
Size | 444.6 MB
| 56.8 MB
|
Events in quadrant A | 3,577,002 | 374,326 |
Events in quadrant B | 3,388,162 | 364,007 |
Events in quadrant C | 3,104,681 | 357,885 |
Events in quadrant D | 3,699,622 | 346,989 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 33 | 0 |
B | 0 | 33 | 0 |
C | 0 | 33 | 0 |
D | 0 | 34 | 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 | 14293 | 3 |
B | 0 | 13203 | 2 |
C | 0 | 12025 | 2 |
D | 0 | 14349 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5152 | 16 | 0.310559% |
B | 5152 | 164 | 3.183230% |
C | 5152 | 104 | 2.018634% |
D | 5152 | 180 | 3.493789% |
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 | 7215 | 5153 | 2 | 2 | 0.03% | 0.04% | |
B | 7215 | 5153 | 111 | 111 | 1.54% | 2.15% | |
C | 7215 | 5153 | 101 | 101 | 1.40% | 1.96% | |
D | 7215 | 5153 | 155 | 155 | 2.15% | 3.01% | |
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 | 15 | 169 | 694656 | 5009.18 | 699 | 691 | 138.5 |
A | 10 | 83 | 159859 | 1148.91 | 699 | 691 | 138.5 |
A | 8 | 144 | 12253 | 83.46 | 699 | 691 | 138.5 |
B | 5 | 172 | 514427 | 4090.36 | 673 | 659 | 125.6 |
B | 0 | 213 | 94789 | 749.41 | 673 | 659 | 125.6 |
B | 4 | 232 | 30819 | 240.12 | 673 | 659 | 125.6 |
C | 0 | 10 | 296126 | 1972.06 | 654 | 661 | 149.8 |
C | 15 | 214 | 216448 | 1440.26 | 654 | 661 | 149.8 |
C | 15 | 208 | 16491 | 105.66 | 654 | 661 | 149.8 |
D | 13 | 249 | 517770 | 3243.9 | 662 | 646 | 159.4 |
D | 8 | 195 | 173271 | 1082.87 | 662 | 646 | 159.4 |
D | 2 | 153 | 150862 | 942.3 | 662 | 646 | 159.4 |
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 | |