Observation information
- date-obs: 2022-05-17
- time-obs: 02:17:01.890500000
- date-end: 2022-05-17
- time-end: 04:41:14.883800000
- obs_id: A11_080T01_9000005146
- exposure: 3519.27898206
- 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_35865cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35865cztM0_level2_quad_clean.evt
|
Size (bytes) | 604,889,280 | 80,372,160 |
Size | 576.9 MB
| 76.6 MB
|
Events in quadrant A | 6,739,538 | 511,709 |
Events in quadrant B | 4,188,378 | 504,750 |
Events in quadrant C | 3,531,921 | 522,459 |
Events in quadrant D | 3,477,785 | 499,277 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30 | 0 |
B | 0 | 30 | 0 |
C | 0 | 30 | 0 |
D | 0 | 31 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 114 | 0 |
B | 0 | 114 | 0 |
C | 0 | 114 | 0 |
D | 0 | 114 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 24078 | 3 |
B | 0 | 15968 | 2 |
C | 0 | 13973 | 2 |
D | 0 | 14132 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5657 | 425 | 7.512816% |
B | 5657 | 454 | 8.025455% |
C | 5657 | 109 | 1.926816% |
D | 5657 | 73 | 1.290437% |
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 | 7299 | 5658 | 307 | 307 | 4.21% | 5.43% | |
B | 7299 | 5658 | 385 | 385 | 5.27% | 6.80% | |
C | 7299 | 5658 | 102 | 102 | 1.40% | 1.80% | |
D | 7299 | 5658 | 68 | 68 | 0.93% | 1.20% | |
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 | 4001557 | 29966.27 | 658 | 647 | 133.5 |
A | 10 | 83 | 164251 | 1225.37 | 658 | 647 | 133.5 |
A | 7 | 48 | 17669 | 127.49 | 658 | 647 | 133.5 |
B | 5 | 172 | 1149427 | 9281.47 | 643 | 628 | 123.8 |
B | 5 | 255 | 450294 | 3632.98 | 643 | 628 | 123.8 |
B | 4 | 232 | 21892 | 171.8 | 643 | 628 | 123.8 |
C | 15 | 208 | 335289 | 2220.88 | 642 | 648 | 150.7 |
C | 1 | 23 | 299761 | 1985.1 | 642 | 648 | 150.7 |
C | 15 | 214 | 236626 | 1566.1 | 642 | 648 | 150.7 |
D | 8 | 195 | 400458 | 2526.84 | 643 | 625 | 158.2 |
D | 13 | 249 | 219191 | 1381.28 | 643 | 625 | 158.2 |
D | 2 | 250 | 191560 | 1206.66 | 643 | 625 | 158.2 |
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 | |