Observation information
- date-obs: 2022-05-15
- time-obs: 03:35:21.982700000
- date-end: 2022-05-15
- time-end: 05:40:36.980000000
- obs_id: A11_080T01_9000005146
- exposure: 3555.5717089
- 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_35836cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35836cztM0_level2_quad_clean.evt
|
Size (bytes) | 472,677,120 | 81,682,560 |
Size | 450.8 MB
| 77.9 MB
|
Events in quadrant A | 3,592,295 | 528,247 |
Events in quadrant B | 3,152,538 | 534,177 |
Events in quadrant C | 3,349,640 | 517,631 |
Events in quadrant D | 3,834,761 | 495,727 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17 | 0 |
B | 0 | 17 | 0 |
C | 0 | 17 | 0 |
D | 0 | 18 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 118 | 0 |
B | 0 | 118 | 0 |
C | 0 | 118 | 0 |
D | 0 | 118 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 14262 | 3 |
B | 0 | 12958 | 2 |
C | 0 | 13373 | 2 |
D | 0 | 15145 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5677 | 198 | 3.487758% |
B | 5677 | 57 | 1.004051% |
C | 5677 | 155 | 2.730315% |
D | 5677 | 248 | 4.368504% |
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 | 7320 | 5678 | 178 | 178 | 2.43% | 3.13% | |
B | 7320 | 5678 | 25 | 25 | 0.34% | 0.44% | |
C | 7320 | 5678 | 133 | 133 | 1.82% | 2.34% | |
D | 7320 | 5678 | 230 | 230 | 3.14% | 4.05% | |
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 | 821048 | 6030.58 | 668 | 655 | 136.0 |
A | 10 | 83 | 164838 | 1206.88 | 668 | 655 | 136.0 |
A | 13 | 6 | 12529 | 87.28 | 668 | 655 | 136.0 |
B | 5 | 255 | 305184 | 2361.98 | 667 | 652 | 128.9 |
B | 4 | 232 | 79523 | 611.73 | 667 | 652 | 128.9 |
B | 5 | 172 | 59746 | 458.34 | 667 | 652 | 128.9 |
C | 15 | 208 | 349717 | 2332.06 | 643 | 649 | 149.7 |
C | 0 | 10 | 240308 | 1601.12 | 643 | 649 | 149.7 |
C | 15 | 214 | 238437 | 1588.62 | 643 | 649 | 149.7 |
D | 13 | 249 | 351912 | 2237.37 | 642 | 629 | 157.0 |
D | 2 | 250 | 304003 | 1932.23 | 642 | 629 | 157.0 |
D | 7 | 223 | 250835 | 1593.6 | 642 | 629 | 157.0 |
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 | |