Observation information
- date-obs: 2022-05-21
- time-obs: 14:15:21.669900000
- date-end: 2022-05-21
- time-end: 16:36:29.665900000
- obs_id: A11_080T01_9000005146
- exposure: 3651.7145168
- 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_35932cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35932cztM0_level2_quad_clean.evt
|
Size (bytes) | 492,514,560 | 82,923,840 |
Size | 469.7 MB
| 79.1 MB
|
Events in quadrant A | 2,859,819 | 553,065 |
Events in quadrant B | 5,265,876 | 499,802 |
Events in quadrant C | 3,084,804 | 542,135 |
Events in quadrant D | 3,318,330 | 517,436 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27 | 0 |
B | 0 | 27 | 0 |
C | 0 | 27 | 0 |
D | 0 | 28 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 116 | 0 |
B | 0 | 116 | 0 |
C | 0 | 116 | 0 |
D | 0 | 116 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11942 | 3 |
B | 0 | 19207 | 2 |
C | 0 | 12363 | 2 |
D | 0 | 13550 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5700 | 15 | 0.263158% |
B | 5700 | 1075 | 18.859649% |
C | 5700 | 102 | 1.789474% |
D | 5700 | 99 | 1.736842% |
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 | 7162 | 5701 | 1 | 1 | 0.01% | 0.02% | |
B | 7162 | 5701 | 851 | 851 | 11.88% | 14.93% | |
C | 7162 | 5701 | 76 | 76 | 1.06% | 1.33% | |
D | 7162 | 5701 | 81 | 81 | 1.13% | 1.42% | |
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 | 172152 | 1232.52 | 678 | 668 | 139.1 |
A | 15 | 169 | 39685 | 280.43 | 678 | 668 | 139.1 |
A | 13 | 6 | 11223 | 75.86 | 678 | 668 | 139.1 |
B | 5 | 172 | 2635424 | 22498.28 | 602 | 588 | 117.1 |
B | 5 | 255 | 220798 | 1880.32 | 602 | 588 | 117.1 |
B | 0 | 245 | 14340 | 117.42 | 602 | 588 | 117.1 |
C | 0 | 10 | 303399 | 1967.48 | 652 | 660 | 153.9 |
C | 15 | 214 | 236553 | 1533.05 | 652 | 660 | 153.9 |
C | 13 | 61 | 4296 | 23.63 | 652 | 660 | 153.9 |
D | 1 | 52 | 325860 | 2016.89 | 654 | 637 | 161.2 |
D | 2 | 250 | 109326 | 674.04 | 654 | 637 | 161.2 |
D | 13 | 249 | 99429 | 612.67 | 654 | 637 | 161.2 |
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 | |