Observation information
- date-obs: 2024-09-23
- time-obs: 21:07:19.462600000
- date-end: 2024-09-23
- time-end: 23:20:07.455500000
- obs_id: A13_037T01_9000006436
- exposure: 5890.20095992
- 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_48620cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48620cztM0_level2_quad_clean.evt
|
| Size (bytes) | 423,696,960 | 104,368,320 |
| Size | 404.1 MB
| 99.5 MB
|
| Events in quadrant A | 6,787,536 | 667,580 |
| Events in quadrant B | 2,929,324 | 730,053 |
| Events in quadrant C | 2,679,171 | 701,000 |
| Events in quadrant D | 2,802,028 | 625,560 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24533 | 2 |
| B | 0 | 13277 | 2 |
| C | 0 | 12696 | 2 |
| D | 0 | 13145 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6250 | 339 | 5.424000% |
| B | 6250 | 66 | 1.056000% |
| C | 6250 | 14 | 0.224000% |
| D | 6250 | 25 | 0.400000% |
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 | 7460 | 6251 | 207 | 207 | 2.77% | 3.31% |  |
| B | 7460 | 6251 | 17 | 17 | 0.23% | 0.27% |  |
| C | 7460 | 6251 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7460 | 6251 | 12 | 12 | 0.16% | 0.19% |  |
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 | 4001825 | 28410.13 | 673 | 660 | 140.8 |
| A | 13 | 248 | 99765 | 703.69 | 673 | 660 | 140.8 |
| A | 7 | 3 | 75787 | 533.44 | 673 | 660 | 140.8 |
| B | 12 | 16 | 120537 | 892.75 | 692 | 671 | 134.3 |
| B | 5 | 255 | 27477 | 199.65 | 692 | 671 | 134.3 |
| B | 5 | 171 | 21519 | 155.27 | 692 | 671 | 134.3 |
| C | 13 | 61 | 4525 | 23.6 | 686 | 688 | 162.6 |
| C | 14 | 254 | 4262 | 21.99 | 686 | 688 | 162.6 |
| C | 12 | 249 | 3622 | 18.05 | 686 | 688 | 162.6 |
| D | 10 | 199 | 80262 | 474.24 | 672 | 650 | 167.9 |
| D | 10 | 204 | 38859 | 227.61 | 672 | 650 | 167.9 |
| D | 2 | 249 | 33052 | 193.01 | 672 | 650 | 167.9 |
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 |  |