Observation information
- date-obs: 2025-06-10
- time-obs: 10:11:53.762400000
- date-end: 2025-06-10
- time-end: 12:19:27.741200000
- obs_id: A13_037T01_9000006476
- exposure: 1377.76550698
- 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_9000006476_52473cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006476_52473cztM0_level2_quad_clean.evt
|
| Size (bytes) | 914,215,680 | 90,771,840 |
| Size | 871.9 MB
| 86.6 MB
|
| Events in quadrant A | 3,811,895 | 711,230 |
| Events in quadrant B | 5,224,781 | 762,456 |
| Events in quadrant C | 5,959,294 | 659,918 |
| Events in quadrant D | 18,250,763 | 78,389 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16613 | 0 |
| B | 0 | 20684 | 0 |
| C | 0 | 23061 | 0 |
| D | 0 | 59439 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7654 | 37 | 0.483407% |
| B | 7653 | 184 | 2.404286% |
| C | 7654 | 396 | 5.173765% |
| D | 7654 | 7654 | 100.000000% |
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 | 7654 | 7654 | 27 | 27 | 0.35% | 0.35% |  |
| B | 7653 | 7653 | 97 | 97 | 1.27% | 1.27% |  |
| C | 7654 | 7654 | 363 | 363 | 4.74% | 4.74% |  |
| D | 7653 | 7653 | 6643 | 6643 | 86.80% | 86.80% |  |
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 | 8 | 249 | 171616 | 848.41 | 814 | 793 | 201.3 |
| A | 4 | 61 | 132187 | 652.58 | 814 | 793 | 201.3 |
| A | 4 | 3 | 59546 | 291.8 | 814 | 793 | 201.3 |
| B | 10 | 254 | 1083391 | 6242.9 | 801 | 770 | 173.4 |
| B | 4 | 171 | 281646 | 1619.66 | 801 | 770 | 173.4 |
| B | 10 | 44 | 142083 | 814.88 | 801 | 770 | 173.4 |
| C | 15 | 224 | 1530472 | 7290.28 | 769 | 764 | 209.8 |
| C | 15 | 248 | 556697 | 2649.46 | 769 | 764 | 209.8 |
| C | 13 | 3 | 200122 | 950.1 | 769 | 764 | 209.8 |
| D | 15 | 93 | 17152515 | 504749.37 | 111 | 106 | 34.0 |
| D | 6 | 42 | 316343 | 9306.01 | 111 | 106 | 34.0 |
| D | 2 | 153 | 142973 | 4204.19 | 111 | 106 | 34.0 |
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 |  |