Observation information
- date-obs: 2024-09-20
- time-obs: 05:48:47.722000000
- date-end: 2024-09-20
- time-end: 06:48:44.719000000
- obs_id: A13_037T01_9000006436
- exposure: 1591.66425759
- 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_48565cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48565cztM0_level2_quad_clean.evt
|
| Size (bytes) | 110,655,360 | 26,288,640 |
| Size | 105.5 MB
| 25.1 MB
|
| Events in quadrant A | 1,756,847 | 162,568 |
| Events in quadrant B | 762,854 | 175,673 |
| Events in quadrant C | 726,092 | 173,995 |
| Events in quadrant D | 714,882 | 158,851 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6441 | 35 |
| B | 0 | 3612 | 15 |
| C | 0 | 3569 | 21 |
| D | 0 | 3580 | 11 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 36 | 0 |
| B | 0 | 36 | 0 |
| C | 0 | 36 | 0 |
| D | 0 | 36 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1703 | 102 | 5.989430% |
| B | 1708 | 41 | 2.400468% |
| C | 1703 | 12 | 0.704639% |
| D | 1703 | 5 | 0.293600% |
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 | 3597 | 1711 | 0 | 0 | 0.00% | 0.00% |  |
| B | 3597 | 1720 | 0 | 0 | 0.00% | 0.00% |  |
| C | 3597 | 1712 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3597 | 1711 | 0 | 0 | 0.00% | 0.00% |  |
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 | 1026608 | 24912.11 | 186 | 182 | 41.2 |
| A | 12 | 189 | 9036 | 214.89 | 186 | 182 | 41.2 |
| A | 13 | 254 | 3199 | 73.22 | 186 | 182 | 41.2 |
| B | 12 | 16 | 6920 | 166.81 | 189 | 182 | 40.4 |
| B | 12 | 111 | 5251 | 125.49 | 189 | 182 | 40.4 |
| B | 5 | 255 | 5225 | 124.85 | 189 | 182 | 40.4 |
| C | 12 | 250 | 4104 | 86.02 | 185 | 185 | 45.6 |
| C | 13 | 61 | 1295 | 24.36 | 185 | 185 | 45.6 |
| C | 10 | 20 | 500 | 6.91 | 185 | 185 | 45.6 |
| D | 2 | 234 | 7636 | 158.75 | 180 | 174 | 47.0 |
| D | 13 | 171 | 6919 | 143.5 | 180 | 174 | 47.0 |
| D | 7 | 96 | 6914 | 143.39 | 180 | 174 | 47.0 |
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 |  |