Observation information
- date-obs: 2022-05-21
- time-obs: 12:30:21.672900000
- date-end: 2022-05-21
- time-end: 14:50:40.668300000
- obs_id: A11_080T01_9000005146
- exposure: 2811.2984097
- 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_35931cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35931cztM0_level2_quad_clean.evt
|
| Size (bytes) | 435,919,680 | 66,957,120 |
| Size | 415.7 MB
| 63.9 MB
|
| Events in quadrant A | 2,694,064 | 430,854 |
| Events in quadrant B | 3,923,454 | 404,340 |
| Events in quadrant C | 2,835,923 | 423,233 |
| Events in quadrant D | 3,388,929 | 398,325 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31 | 0 |
| B | 0 | 31 | 0 |
| C | 0 | 31 | 0 |
| D | 0 | 32 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 108 | 0 |
| B | 0 | 108 | 0 |
| C | 0 | 108 | 0 |
| D | 0 | 108 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11106 | 3 |
| B | 0 | 14956 | 2 |
| C | 0 | 11371 | 2 |
| D | 0 | 13502 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5290 | 16 | 0.302457% |
| B | 5290 | 480 | 9.073724% |
| C | 5290 | 82 | 1.550095% |
| D | 5290 | 142 | 2.684310% |
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 | 7083 | 5291 | 4 | 4 | 0.06% | 0.08% |  |
| B | 7083 | 5291 | 352 | 352 | 4.97% | 6.65% |  |
| C | 7083 | 5291 | 61 | 61 | 0.86% | 1.15% |  |
| D | 7083 | 5291 | 103 | 103 | 1.45% | 1.95% |  |
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 | 166118 | 1276.07 | 634 | 624 | 129.7 |
| A | 15 | 169 | 44203 | 336.02 | 634 | 624 | 129.7 |
| A | 0 | 31 | 14396 | 106.19 | 634 | 624 | 129.7 |
| B | 5 | 172 | 1060208 | 9172.94 | 603 | 589 | 115.5 |
| B | 5 | 255 | 431398 | 3729.44 | 603 | 589 | 115.5 |
| B | 4 | 232 | 15649 | 130.37 | 603 | 589 | 115.5 |
| C | 0 | 10 | 244565 | 1716.52 | 607 | 613 | 142.1 |
| C | 15 | 214 | 221048 | 1551.04 | 607 | 613 | 142.1 |
| C | 13 | 61 | 4082 | 24.41 | 607 | 613 | 142.1 |
| D | 1 | 52 | 352784 | 2373.35 | 606 | 592 | 148.4 |
| D | 10 | 118 | 245922 | 1653.23 | 606 | 592 | 148.4 |
| D | 8 | 195 | 182707 | 1227.24 | 606 | 592 | 148.4 |
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 |  |