Observation information
- date-obs: 2022-05-18
- time-obs: 11:27:01.817400000
- date-end: 2022-05-18
- time-end: 13:44:51.813400000
- obs_id: A11_080T01_9000005146
- exposure: 2142.95587729
- 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_35886cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35886cztM0_level2_quad_clean.evt
|
Size (bytes) | 526,507,200 | 56,934,720 |
Size | 502.1 MB
| 54.3 MB
|
Events in quadrant A | 2,757,691 | 370,227 |
Events in quadrant B | 5,608,787 | 296,851 |
Events in quadrant C | 2,965,558 | 359,617 |
Events in quadrant D | 4,268,222 | 339,725 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 32 | 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 | 10956 | 3 |
B | 0 | 19938 | 2 |
C | 0 | 11517 | 2 |
D | 0 | 16276 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5093 | 12 | 0.235618% |
B | 5093 | 1166 | 22.894168% |
C | 5093 | 66 | 1.295896% |
D | 5093 | 273 | 5.360298% |
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 | 7216 | 5094 | 1 | 1 | 0.01% | 0.02% | |
B | 7216 | 5094 | 1038 | 1038 | 14.38% | 20.38% | |
C | 7216 | 5094 | 53 | 53 | 0.73% | 1.04% | |
D | 7216 | 5094 | 243 | 243 | 3.37% | 4.77% | |
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 | 164175 | 1230.7 | 660 | 651 | 132.9 |
A | 15 | 169 | 19803 | 144.14 | 660 | 651 | 132.9 |
A | 13 | 6 | 13002 | 92.96 | 660 | 651 | 132.9 |
B | 5 | 63 | 2819035 | 25938.12 | 573 | 560 | 108.7 |
B | 5 | 172 | 349231 | 3208.78 | 573 | 560 | 108.7 |
B | 5 | 255 | 67868 | 619.42 | 573 | 560 | 108.7 |
C | 0 | 10 | 219233 | 1510.16 | 627 | 633 | 144.8 |
C | 15 | 214 | 213730 | 1472.14 | 627 | 633 | 144.8 |
C | 0 | 207 | 45733 | 311.57 | 627 | 633 | 144.8 |
D | 12 | 227 | 392486 | 2538.25 | 626 | 611 | 154.4 |
D | 2 | 249 | 357346 | 2310.64 | 626 | 611 | 154.4 |
D | 8 | 195 | 346959 | 2243.36 | 626 | 611 | 154.4 |
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 | |