Observation information
- date-obs: 2022-05-18
- time-obs: 09:50:21.821500000
- date-end: 2022-05-18
- time-end: 11:59:47.816700000
- obs_id: A11_080T01_9000005146
- exposure: 2031.89635472
- 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_35885cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35885cztM0_level2_quad_clean.evt
|
| Size (bytes) | 555,874,560 | 56,972,160 |
| Size | 530.1 MB
| 54.3 MB
|
| Events in quadrant A | 2,825,517 | 363,104 |
| Events in quadrant B | 6,474,731 | 321,960 |
| Events in quadrant C | 2,970,073 | 348,363 |
| Events in quadrant D | 4,221,893 | 336,415 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26 | 0 |
| B | 0 | 26 | 0 |
| C | 0 | 26 | 0 |
| D | 0 | 27 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 104 | 0 |
| B | 0 | 104 | 0 |
| C | 0 | 104 | 0 |
| D | 0 | 104 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11173 | 3 |
| B | 0 | 22643 | 2 |
| C | 0 | 11530 | 2 |
| D | 0 | 16051 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5058 | 11 | 0.217477% |
| B | 5058 | 1393 | 27.540530% |
| C | 5058 | 66 | 1.304864% |
| D | 5058 | 234 | 4.626335% |
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 | 7181 | 5059 | 2 | 2 | 0.03% | 0.04% |  |
| B | 7181 | 5059 | 1260 | 1260 | 17.55% | 24.91% |  |
| C | 7181 | 5059 | 61 | 61 | 0.85% | 1.21% |  |
| D | 7181 | 5059 | 201 | 201 | 2.80% | 3.97% |  |
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 | 160672 | 1177.33 | 681 | 673 | 135.9 |
| A | 8 | 144 | 21664 | 154.46 | 681 | 673 | 135.9 |
| A | 13 | 6 | 8540 | 57.89 | 681 | 673 | 135.9 |
| B | 5 | 63 | 3484331 | 31899.02 | 584 | 571 | 109.2 |
| B | 5 | 172 | 455592 | 4166.4 | 584 | 571 | 109.2 |
| B | 5 | 255 | 94829 | 863.07 | 584 | 571 | 109.2 |
| C | 15 | 214 | 212826 | 1438.73 | 642 | 649 | 147.5 |
| C | 0 | 10 | 205470 | 1388.85 | 642 | 649 | 147.5 |
| C | 1 | 23 | 29088 | 192.84 | 642 | 649 | 147.5 |
| D | 1 | 52 | 1044560 | 6668.07 | 646 | 631 | 156.6 |
| D | 13 | 249 | 222697 | 1418.44 | 646 | 631 | 156.6 |
| D | 8 | 195 | 143409 | 911.99 | 646 | 631 | 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 |
 |
 |
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 |  |