Observation information
- date-obs: 2024-09-18
- time-obs: 02:02:19.870400000
- date-end: 2024-09-18
- time-end: 04:18:58.864000000
- obs_id: A13_037T01_9000006436
- exposure: 3258.69375324
- sourceid: Cygnus X-2
- observer: ranjeev
- ra_pnt: 326.1714
- dec_pnt: 38.32141
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A13_037T01_9000006436_48534cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48534cztM0_level2_quad_clean.evt
|
| Size (bytes) | 595,428,480 | 88,171,200 |
| Size | 567.8 MB
| 84.1 MB
|
| Events in quadrant A | 6,910,759 | 614,159 |
| Events in quadrant B | 2,852,549 | 677,175 |
| Events in quadrant C | 2,539,841 | 648,343 |
| Events in quadrant D | 9,267,592 | 306,785 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25314 | 385 |
| B | 0 | 13031 | 171 |
| C | 0 | 12448 | 162 |
| D | 0 | 32270 | 371 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 19 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 2 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 2 |
| D | 0 | 126 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6033 | 404 | 6.696503% |
| B | 6064 | 70 | 1.154354% |
| C | 6063 | 19 | 0.313376% |
| D | 6048 | 2932 | 48.478836% |
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 | 7482 | 6101 | 254 | 254 | 3.39% | 4.16% |  |
| B | 7482 | 6127 | 19 | 19 | 0.25% | 0.31% |  |
| C | 7481 | 6123 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7481 | 6120 | 2502 | 2502 | 33.44% | 40.88% |  |
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 | 3811878 | 28416.62 | 642 | 628 | 134.1 |
| A | 13 | 248 | 293481 | 2183.51 | 642 | 628 | 134.1 |
| A | 12 | 189 | 203141 | 1509.93 | 642 | 628 | 134.1 |
| B | 5 | 255 | 118597 | 913.11 | 659 | 637 | 129.2 |
| B | 4 | 248 | 51048 | 390.23 | 659 | 637 | 129.2 |
| B | 0 | 183 | 37869 | 288.21 | 659 | 637 | 129.2 |
| C | 14 | 254 | 11927 | 74.28 | 647 | 649 | 151.8 |
| C | 13 | 61 | 4393 | 24.66 | 647 | 649 | 151.8 |
| C | 3 | 233 | 2966 | 15.26 | 647 | 649 | 151.8 |
| D | 2 | 165 | 7344308 | 62067.88 | 473 | 458 | 118.3 |
| D | 2 | 249 | 53998 | 452.5 | 473 | 458 | 118.3 |
| D | 7 | 96 | 30415 | 253.19 | 473 | 458 | 118.3 |
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 |  |