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 |
 |
 |
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 |  |