Observation information
- date-obs: 2024-09-20
- time-obs: 16:55:51.691200000
- date-end: 2024-09-20
- time-end: 19:00:42.684600000
- obs_id: A13_037T01_9000006436
- exposure: 6389.12577766
- 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_48572cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48572cztM0_level2_quad_clean.evt
|
| Size (bytes) | 435,349,440 | 103,752,000 |
| Size | 415.2 MB
| 98.9 MB
|
| Events in quadrant A | 6,763,968 | 674,799 |
| Events in quadrant B | 2,933,944 | 708,255 |
| Events in quadrant C | 2,723,136 | 679,652 |
| Events in quadrant D | 3,177,106 | 614,900 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24649 | 1 |
| B | 0 | 13814 | 1 |
| C | 0 | 13471 | 1 |
| D | 0 | 14499 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6656 | 179 | 2.689303% |
| B | 6656 | 58 | 0.871394% |
| C | 6656 | 35 | 0.525841% |
| D | 6657 | 68 | 1.021481% |
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 | 7491 | 6657 | 39 | 39 | 0.52% | 0.59% |  |
| B | 7491 | 6657 | 17 | 17 | 0.23% | 0.26% |  |
| C | 7491 | 6657 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7492 | 6658 | 26 | 26 | 0.35% | 0.39% |  |
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 | 3970130 | 27081.5 | 694 | 678 | 146.6 |
| A | 0 | 31 | 89332 | 604.84 | 694 | 678 | 146.6 |
| A | 13 | 254 | 12861 | 83.11 | 694 | 678 | 146.6 |
| B | 5 | 255 | 129182 | 927.28 | 696 | 673 | 138.6 |
| B | 0 | 183 | 22655 | 158.61 | 696 | 673 | 138.6 |
| B | 12 | 16 | 22145 | 154.93 | 696 | 673 | 138.6 |
| C | 3 | 233 | 7914 | 43.48 | 694 | 697 | 166.0 |
| C | 12 | 250 | 7836 | 43.01 | 694 | 697 | 166.0 |
| C | 13 | 61 | 4812 | 24.79 | 694 | 697 | 166.0 |
| D | 2 | 165 | 269392 | 1563.22 | 688 | 665 | 171.9 |
| D | 2 | 249 | 84405 | 487.13 | 688 | 665 | 171.9 |
| D | 13 | 171 | 62692 | 360.82 | 688 | 665 | 171.9 |
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 |  |