Observation information
- date-obs: 2022-05-17
- time-obs: 09:23:41.871800000
- date-end: 2022-05-17
- time-end: 11:39:34.867400000
- obs_id: A11_080T01_9000005146
- exposure: 2063.19607906
- 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_35870cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35870cztM0_level2_quad_clean.evt
|
Size (bytes) | 506,888,640 | 58,331,520 |
Size | 483.4 MB
| 55.6 MB
|
Events in quadrant A | 4,082,230 | 367,197 |
Events in quadrant B | 3,437,656 | 357,441 |
Events in quadrant C | 3,314,269 | 353,535 |
Events in quadrant D | 4,163,741 | 322,332 |
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 | 104 | 0 |
B | 0 | 104 | 0 |
C | 0 | 104 | 0 |
D | 0 | 104 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15944 | 3 |
B | 0 | 13340 | 2 |
C | 0 | 12942 | 2 |
D | 0 | 15639 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5225 | 174 | 3.330144% |
B | 5225 | 171 | 3.272727% |
C | 5225 | 122 | 2.334928% |
D | 5225 | 523 | 10.009569% |
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 | 7348 | 5226 | 96 | 96 | 1.31% | 1.84% | |
B | 7348 | 5226 | 146 | 146 | 1.99% | 2.79% | |
C | 7348 | 5226 | 100 | 100 | 1.36% | 1.91% | |
D | 7348 | 5226 | 499 | 499 | 6.79% | 9.55% | |
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 | 986769 | 7077.57 | 701 | 693 | 139.3 |
A | 7 | 48 | 197169 | 1410.21 | 701 | 693 | 139.3 |
A | 10 | 83 | 156623 | 1119.19 | 701 | 693 | 139.3 |
B | 5 | 172 | 613588 | 4776.13 | 683 | 669 | 128.3 |
B | 5 | 255 | 53286 | 410.01 | 683 | 669 | 128.3 |
B | 0 | 190 | 23163 | 175.28 | 683 | 669 | 128.3 |
C | 0 | 10 | 269369 | 1761.61 | 666 | 672 | 152.5 |
C | 1 | 23 | 227980 | 1490.26 | 666 | 672 | 152.5 |
C | 15 | 214 | 219018 | 1431.5 | 666 | 672 | 152.5 |
D | 8 | 230 | 995811 | 6258.17 | 650 | 633 | 159.0 |
D | 7 | 223 | 173738 | 1088.57 | 650 | 633 | 159.0 |
D | 8 | 195 | 172360 | 1079.9 | 650 | 633 | 159.0 |
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 | |