Observation information
- date-obs: 2024-09-17
- time-obs: 00:12:52.929600000
- date-end: 2024-09-17
- time-end: 02:18:37.924500000
- obs_id: A13_037T01_9000006436
- exposure: 6137.28575575
- 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_48518cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48518cztM0_level2_quad_clean.evt
|
| Size (bytes) | 439,940,160 | 103,772,160 |
| Size | 419.6 MB
| 99.0 MB
|
| Events in quadrant A | 6,913,907 | 668,429 |
| Events in quadrant B | 3,376,160 | 715,167 |
| Events in quadrant C | 2,676,427 | 691,105 |
| Events in quadrant D | 2,818,893 | 618,831 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24976 | 14 |
| B | 0 | 14754 | 3 |
| C | 0 | 13014 | 1 |
| D | 0 | 13527 | 5 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6433 | 266 | 4.134929% |
| B | 6435 | 124 | 1.926962% |
| C | 6436 | 10 | 0.155376% |
| D | 6434 | 40 | 0.621697% |
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 | 7546 | 6437 | 108 | 108 | 1.43% | 1.68% |  |
| B | 7546 | 6437 | 57 | 57 | 0.76% | 0.89% |  |
| C | 7546 | 6437 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7546 | 6437 | 26 | 26 | 0.34% | 0.40% |  |
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 | 3910605 | 27505.98 | 680 | 666 | 142.1 |
| A | 0 | 31 | 195750 | 1372.39 | 680 | 666 | 142.1 |
| A | 13 | 248 | 128532 | 899.52 | 680 | 666 | 142.1 |
| B | 12 | 16 | 367477 | 2722.24 | 691 | 671 | 134.7 |
| B | 5 | 255 | 214610 | 1587.74 | 691 | 671 | 134.7 |
| B | 8 | 234 | 34015 | 247.46 | 691 | 671 | 134.7 |
| C | 3 | 233 | 7306 | 40.89 | 682 | 687 | 161.9 |
| C | 0 | 2 | 4671 | 24.61 | 682 | 687 | 161.9 |
| C | 13 | 61 | 4605 | 24.21 | 682 | 687 | 161.9 |
| D | 2 | 249 | 132118 | 771.9 | 672 | 650 | 170.3 |
| D | 2 | 165 | 80009 | 465.95 | 672 | 650 | 170.3 |
| D | 2 | 234 | 28884 | 165.77 | 672 | 650 | 170.3 |
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 |  |