Observation information
- date-obs: 2024-12-15
- time-obs: 00:40:46.638400000
- date-end: 2024-12-15
- time-end: 02:37:08.616400000
- obs_id: A13_037T01_9000006440
- exposure: 108.812312543
- 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_9000006440_49839cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49839cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,160,285,760 | 39,329,280 |
| Size | 1.1 GB
| 37.5 MB
|
| Events in quadrant A | 13,566,155 | 119,405 |
| Events in quadrant B | 3,288,206 | 628,022 |
| Events in quadrant C | 11,764,258 | 11,467 |
| Events in quadrant D | 13,882,893 | 25,164 |
Level1 data integrity
| 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 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 44222 | 1 |
| B | 0 | 13740 | 1 |
| C | 0 | 38944 | 1 |
| D | 0 | 45230 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5807 | 4827 | 83.123816% |
| B | 5808 | 155 | 2.668733% |
| C | 5808 | 5725 | 98.570937% |
| D | 5808 | 5615 | 96.676997% |
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 | 6982 | 5807 | 4334 | 4334 | 62.07% | 74.63% |  |
| B | 6983 | 5809 | 36 | 36 | 0.52% | 0.62% |  |
| C | 6982 | 5807 | 3083 | 3083 | 44.16% | 53.09% |  |
| D | 6982 | 5807 | 5038 | 5038 | 72.16% | 86.76% |  |
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 | 4 | 4 | 9001101 | 79757.76 | 417 | 406 | 112.9 |
| A | 3 | 84 | 1389247 | 12306.92 | 417 | 406 | 112.9 |
| A | 3 | 130 | 236379 | 2091.02 | 417 | 406 | 112.9 |
| B | 0 | 229 | 285354 | 2049.37 | 648 | 628 | 138.9 |
| B | 4 | 206 | 114228 | 817.66 | 648 | 628 | 138.9 |
| B | 5 | 185 | 78143 | 557.93 | 648 | 628 | 138.9 |
| C | 15 | 230 | 3779856 | 77269.67 | 150 | 148 | 48.9 |
| C | 15 | 197 | 1876810 | 38365.15 | 150 | 148 | 48.9 |
| C | 1 | 44 | 1510190 | 30870.23 | 150 | 148 | 48.9 |
| D | 7 | 61 | 3541026 | 62697.61 | 176 | 169 | 56.5 |
| D | 8 | 176 | 2550126 | 45151.84 | 176 | 169 | 56.5 |
| D | 7 | 126 | 2002746 | 35459.44 | 176 | 169 | 56.5 |
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 |  |