Observation information
- date-obs: 2024-09-21
- time-obs: 17:14:31.618000000
- date-end: 2024-09-21
- time-end: 19:15:25.611300000
- obs_id: A13_037T01_9000006436
- exposure: 5389.98721462
- 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_48587cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48587cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,020,480 | 96,664,320 |
| Size | 467.3 MB
| 92.2 MB
|
| Events in quadrant A | 6,449,634 | 646,438 |
| Events in quadrant B | 3,522,962 | 672,035 |
| Events in quadrant C | 2,615,828 | 654,762 |
| Events in quadrant D | 5,057,760 | 510,861 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23482 | 1 |
| B | 0 | 15036 | 1 |
| C | 0 | 12846 | 1 |
| D | 0 | 19881 | 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 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6344 | 224 | 3.530895% |
| B | 6345 | 155 | 2.442868% |
| C | 6345 | 30 | 0.472813% |
| D | 6345 | 1008 | 15.886525% |
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 | 7254 | 6345 | 41 | 41 | 0.57% | 0.65% |  |
| B | 7255 | 6346 | 92 | 92 | 1.27% | 1.45% |  |
| C | 7255 | 6346 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7255 | 6346 | 748 | 748 | 10.31% | 11.79% |  |
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 | 3871982 | 27896.45 | 664 | 647 | 138.8 |
| A | 13 | 254 | 12161 | 82.97 | 664 | 647 | 138.8 |
| A | 13 | 248 | 9318 | 62.48 | 664 | 647 | 138.8 |
| B | 5 | 255 | 488996 | 3694.53 | 666 | 644 | 132.2 |
| B | 12 | 16 | 366489 | 2767.73 | 666 | 644 | 132.2 |
| B | 0 | 197 | 20378 | 149.29 | 666 | 644 | 132.2 |
| C | 14 | 254 | 11790 | 70.48 | 667 | 670 | 157.8 |
| C | 13 | 61 | 4385 | 23.55 | 667 | 670 | 157.8 |
| C | 3 | 233 | 3489 | 17.87 | 667 | 670 | 157.8 |
| D | 2 | 165 | 2488448 | 15800.96 | 628 | 609 | 157.4 |
| D | 13 | 171 | 94096 | 593.76 | 628 | 609 | 157.4 |
| D | 2 | 234 | 31952 | 199.07 | 628 | 609 | 157.4 |
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 |  |