Observation information
- date-obs: 2022-05-21
- time-obs: 04:15:54.690100000
- date-end: 2022-05-21
- time-end: 11:28:12.674600000
- obs_id: A11_080T01_9000005146
- exposure: 8126.99732107
- 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_35929cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35929cztM0_level2_quad_clean.evt
|
Size (bytes) | 1,779,788,160 | 212,803,200 |
Size | 1.7 GB
| 202.9 MB
|
Events in quadrant A | 11,310,245 | 1,356,156 |
Events in quadrant B | 12,150,900 | 1,349,286 |
Events in quadrant C | 9,987,131 | 1,311,116 |
Events in quadrant D | 19,258,566 | 1,204,998 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 82 | 0 |
B | 0 | 82 | 0 |
C | 0 | 82 | 0 |
D | 0 | 82 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 362 | 0 |
B | 0 | 362 | 0 |
C | 0 | 362 | 0 |
D | 0 | 362 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 44055 | 5 |
B | 0 | 46688 | 4 |
C | 0 | 39431 | 4 |
D | 0 | 68554 | 4 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 17747 | 317 | 1.786217% |
B | 17747 | 1153 | 6.496873% |
C | 17747 | 254 | 1.431228% |
D | 17747 | 3783 | 21.316279% |
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 | 25938 | 17751 | 211 | 211 | 0.81% | 1.19% | |
B | 25938 | 17751 | 794 | 794 | 3.06% | 4.47% | |
C | 25938 | 17751 | 198 | 198 | 0.76% | 1.12% | |
D | 25938 | 17751 | 3554 | 3554 | 13.70% | 20.02% | |
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 | 1932547 | 4336.35 | 2251 | 2219 | 445.1 |
A | 10 | 83 | 435303 | 972.89 | 2251 | 2219 | 445.1 |
A | 9 | 143 | 188175 | 417.74 | 2251 | 2219 | 445.1 |
B | 5 | 172 | 3199146 | 8042.64 | 2149 | 2104 | 397.5 |
B | 5 | 255 | 250715 | 625.42 | 2149 | 2104 | 397.5 |
B | 0 | 213 | 85903 | 210.81 | 2149 | 2104 | 397.5 |
C | 0 | 10 | 793891 | 1628.73 | 2132 | 2153 | 486.1 |
C | 15 | 214 | 733633 | 1504.77 | 2132 | 2153 | 486.1 |
C | 0 | 207 | 144498 | 292.83 | 2132 | 2153 | 486.1 |
D | 8 | 230 | 8800165 | 18445.69 | 1964 | 1915 | 477.0 |
D | 8 | 195 | 635317 | 1327.94 | 1964 | 1915 | 477.0 |
D | 13 | 249 | 548554 | 1146.04 | 1964 | 1915 | 477.0 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
|
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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 |
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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 | |