Observation information
- date-obs: 2022-05-19
- time-obs: 10:10:21.771300000
- date-end: 2022-05-19
- time-end: 12:22:20.766700000
- obs_id: A11_080T01_9000005146
- exposure: 2034.46165137
- 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_35900cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35900cztM0_level2_quad_clean.evt
|
Size (bytes) | 446,906,880 | 56,897,280 |
Size | 426.2 MB
| 54.3 MB
|
Events in quadrant A | 2,858,933 | 361,071 |
Events in quadrant B | 3,051,094 | 353,436 |
Events in quadrant C | 2,990,957 | 344,080 |
Events in quadrant D | 4,290,381 | 309,267 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29 | 0 |
B | 0 | 29 | 0 |
C | 0 | 29 | 0 |
D | 0 | 30 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 102 | 0 |
B | 0 | 102 | 0 |
C | 0 | 102 | 0 |
D | 0 | 102 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11353 | 3 |
B | 0 | 11963 | 2 |
C | 0 | 11532 | 2 |
D | 0 | 16459 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5062 | 11 | 0.217305% |
B | 5062 | 92 | 1.817463% |
C | 5062 | 113 | 2.232319% |
D | 5062 | 356 | 7.032793% |
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 | 7184 | 5063 | 3 | 3 | 0.04% | 0.06% | |
B | 7184 | 5063 | 50 | 50 | 0.70% | 0.99% | |
C | 7184 | 5063 | 75 | 75 | 1.04% | 1.48% | |
D | 7184 | 5063 | 288 | 288 | 4.01% | 5.69% | |
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 | 164003 | 1212.7 | 670 | 660 | 134.7 |
A | 15 | 169 | 82624 | 608.52 | 670 | 660 | 134.7 |
A | 13 | 6 | 13098 | 92.34 | 670 | 660 | 134.7 |
B | 5 | 172 | 267154 | 2169.9 | 651 | 638 | 122.8 |
B | 5 | 255 | 160029 | 1297.72 | 651 | 638 | 122.8 |
B | 15 | 85 | 29462 | 234.68 | 651 | 638 | 122.8 |
C | 0 | 10 | 273711 | 1899.13 | 631 | 638 | 143.8 |
C | 15 | 214 | 213901 | 1483.17 | 631 | 638 | 143.8 |
C | 9 | 69 | 32314 | 220.3 | 631 | 638 | 143.8 |
D | 13 | 153 | 902988 | 5918.92 | 623 | 607 | 152.5 |
D | 8 | 195 | 439594 | 2879.42 | 623 | 607 | 152.5 |
D | 10 | 118 | 176500 | 1153.72 | 623 | 607 | 152.5 |
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 | |