Observation information
- date-obs: 2022-05-16
- time-obs: 14:13:41.913700000
- date-end: 2022-05-16
- time-end: 16:25:48.909000000
- obs_id: A11_080T01_9000005146
- exposure: 3015.22233613
- 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_35858cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35858cztM0_level2_quad_clean.evt
|
Size (bytes) | 440,841,600 | 73,768,320 |
Size | 420.4 MB
| 70.4 MB
|
Events in quadrant A | 4,351,971 | 478,168 |
Events in quadrant B | 2,762,839 | 478,984 |
Events in quadrant C | 2,899,279 | 470,831 |
Events in quadrant D | 2,991,477 | 448,998 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28 | 0 |
B | 0 | 28 | 0 |
C | 0 | 28 | 0 |
D | 0 | 29 | 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 | 16527 | 3 |
B | 0 | 11145 | 2 |
C | 0 | 11312 | 2 |
D | 0 | 12037 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5090 | 260 | 5.108055% |
B | 5090 | 37 | 0.726916% |
C | 5090 | 100 | 1.964637% |
D | 5090 | 109 | 2.141454% |
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 | 7063 | 5091 | 199 | 199 | 2.82% | 3.91% | |
B | 7063 | 5091 | 25 | 25 | 0.35% | 0.49% | |
C | 7063 | 5091 | 83 | 83 | 1.18% | 1.63% | |
D | 7063 | 5091 | 82 | 82 | 1.16% | 1.61% | |
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 | 1773496 | 14128.69 | 621 | 612 | 125.5 |
A | 10 | 83 | 156142 | 1239.47 | 621 | 612 | 125.5 |
A | 8 | 144 | 10286 | 77.1 | 621 | 612 | 125.5 |
B | 5 | 172 | 216698 | 1832.19 | 624 | 610 | 117.9 |
B | 0 | 213 | 55302 | 463.73 | 624 | 610 | 117.9 |
B | 12 | 111 | 13986 | 113.41 | 624 | 610 | 117.9 |
C | 0 | 10 | 238390 | 1682.17 | 610 | 616 | 141.3 |
C | 15 | 214 | 212395 | 1498.26 | 610 | 616 | 141.3 |
C | 1 | 23 | 61866 | 433.32 | 610 | 616 | 141.3 |
D | 13 | 249 | 348821 | 2307.99 | 610 | 598 | 150.9 |
D | 13 | 153 | 100043 | 659.11 | 610 | 598 | 150.9 |
D | 8 | 195 | 68716 | 451.48 | 610 | 598 | 150.9 |
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 | |