Observation information
- date-obs: 2022-05-15
- time-obs: 12:10:21.968800000
- date-end: 2022-05-15
- time-end: 14:20:35.964300000
- obs_id: A11_080T01_9000005146
- exposure: 2325.16619945
- 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_35842cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35842cztM0_level2_quad_clean.evt
|
Size (bytes) | 463,112,640 | 61,879,680 |
Size | 441.7 MB
| 59.0 MB
|
Events in quadrant A | 4,092,257 | 382,919 |
Events in quadrant B | 3,042,016 | 387,710 |
Events in quadrant C | 3,191,469 | 382,653 |
Events in quadrant D | 3,359,364 | 368,448 |
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 | 102 | 0 |
B | 0 | 102 | 0 |
C | 0 | 102 | 0 |
D | 0 | 102 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15477 | 3 |
B | 0 | 12017 | 2 |
C | 0 | 12106 | 2 |
D | 0 | 12977 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5019 | 274 | 5.459255% |
B | 5019 | 49 | 0.976290% |
C | 5019 | 217 | 4.323570% |
D | 5019 | 201 | 4.004782% |
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 | 7171 | 5020 | 275 | 275 | 3.83% | 5.48% | |
B | 7171 | 5020 | 17 | 17 | 0.24% | 0.34% | |
C | 7171 | 5020 | 174 | 174 | 2.43% | 3.47% | |
D | 7171 | 5020 | 167 | 167 | 2.33% | 3.33% | |
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 | 1402042 | 10696.95 | 653 | 644 | 131.0 |
A | 10 | 83 | 153209 | 1164.54 | 653 | 644 | 131.0 |
A | 13 | 6 | 12725 | 92.21 | 653 | 644 | 131.0 |
B | 4 | 232 | 165208 | 1341.23 | 652 | 640 | 122.7 |
B | 0 | 213 | 140641 | 1141.01 | 652 | 640 | 122.7 |
B | 5 | 172 | 90915 | 735.74 | 652 | 640 | 122.7 |
C | 0 | 10 | 486246 | 3407.3 | 621 | 630 | 142.5 |
C | 15 | 214 | 206859 | 1446.99 | 621 | 630 | 142.5 |
C | 15 | 208 | 78583 | 546.95 | 621 | 630 | 142.5 |
D | 2 | 250 | 373696 | 2394.59 | 636 | 621 | 155.8 |
D | 7 | 223 | 309294 | 1981.22 | 636 | 621 | 155.8 |
D | 13 | 249 | 62543 | 397.45 | 636 | 621 | 155.8 |
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 | |