Observation information
- date-obs: 2022-05-20
- time-obs: 07:15:21.729100000
- date-end: 2022-05-20
- time-end: 09:18:12.725200000
- obs_id: A11_080T01_9000005146
- exposure: 2535.16750288
- 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_35913cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35913cztM0_level2_quad_clean.evt
|
Size (bytes) | 482,063,040 | 69,062,400 |
Size | 459.7 MB
| 65.9 MB
|
Events in quadrant A | 3,101,983 | 456,773 |
Events in quadrant B | 4,059,972 | 414,122 |
Events in quadrant C | 3,186,658 | 435,131 |
Events in quadrant D | 3,897,900 | 420,398 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 21 | 0 |
B | 0 | 21 | 0 |
C | 0 | 21 | 0 |
D | 0 | 22 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 106 | 0 |
B | 0 | 106 | 0 |
C | 0 | 106 | 0 |
D | 0 | 106 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12275 | 3 |
B | 0 | 15198 | 2 |
C | 0 | 12452 | 2 |
D | 0 | 15268 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5204 | 21 | 0.403536% |
B | 5204 | 509 | 9.780938% |
C | 5204 | 89 | 1.710223% |
D | 5204 | 162 | 3.112990% |
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 | 7297 | 5205 | 5 | 5 | 0.07% | 0.10% | |
B | 7297 | 5205 | 348 | 348 | 4.77% | 6.69% | |
C | 7297 | 5205 | 75 | 75 | 1.03% | 1.44% | |
D | 7297 | 5205 | 129 | 129 | 1.77% | 2.48% | |
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 | 231879 | 1676.43 | 689 | 678 | 137.9 |
A | 10 | 83 | 161595 | 1166.8 | 689 | 678 | 137.9 |
A | 9 | 143 | 38662 | 275.42 | 689 | 678 | 137.9 |
B | 5 | 172 | 1412197 | 11816.86 | 639 | 626 | 119.5 |
B | 5 | 255 | 106015 | 882.25 | 639 | 626 | 119.5 |
B | 12 | 111 | 13780 | 110.11 | 639 | 626 | 119.5 |
C | 0 | 10 | 254180 | 1721.01 | 644 | 652 | 147.3 |
C | 15 | 214 | 221851 | 1501.56 | 644 | 652 | 147.3 |
C | 0 | 207 | 195908 | 1325.45 | 644 | 652 | 147.3 |
D | 8 | 195 | 367457 | 2342.46 | 650 | 634 | 156.6 |
D | 1 | 52 | 303037 | 1931.09 | 650 | 634 | 156.6 |
D | 13 | 249 | 206063 | 1311.83 | 650 | 634 | 156.6 |
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 | |