Observation information
- date-obs: 2024-05-18
- time-obs: 13:26:15.374100000
- date-end: 2024-05-18
- time-end: 15:34:15.365800000
- obs_id: A13_037T01_9000006256
- exposure: 6376.18566233
- 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_9000006256_46716cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006256_46716cztM0_level2_quad_clean.evt
|
| Size (bytes) | 505,906,560 | 109,031,040 |
| Size | 482.5 MB
| 104.0 MB
|
| Events in quadrant A | 6,792,241 | 734,988 |
| Events in quadrant B | 3,554,480 | 746,864 |
| Events in quadrant C | 3,253,827 | 707,332 |
| Events in quadrant D | 4,597,304 | 636,907 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25254 | 1 |
| B | 0 | 15164 | 1 |
| C | 0 | 14530 | 1 |
| D | 0 | 18343 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6820 | 227 | 3.328446% |
| B | 6820 | 152 | 2.228739% |
| C | 6820 | 141 | 2.067449% |
| D | 6821 | 454 | 6.655916% |
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 | 7680 | 6820 | 11 | 11 | 0.14% | 0.16% |  |
| B | 7680 | 6820 | 28 | 28 | 0.36% | 0.41% |  |
| C | 7680 | 6820 | 50 | 50 | 0.65% | 0.73% |  |
| D | 7681 | 6821 | 301 | 301 | 3.92% | 4.41% |  |
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 | 3693568 | 22853.49 | 769 | 752 | 161.6 |
| A | 9 | 191 | 96929 | 595.2 | 769 | 752 | 161.6 |
| A | 13 | 254 | 12375 | 71.93 | 769 | 752 | 161.6 |
| B | 4 | 171 | 175606 | 1154.32 | 763 | 739 | 151.5 |
| B | 3 | 112 | 85332 | 558.41 | 763 | 739 | 151.5 |
| B | 0 | 198 | 84572 | 553.39 | 763 | 739 | 151.5 |
| C | 12 | 2 | 147754 | 829.87 | 749 | 753 | 177.1 |
| C | 5 | 250 | 53431 | 297.39 | 749 | 753 | 177.1 |
| C | 3 | 233 | 41585 | 230.51 | 749 | 753 | 177.1 |
| D | 1 | 52 | 1099614 | 5904.03 | 737 | 715 | 186.1 |
| D | 13 | 249 | 200010 | 1070.75 | 737 | 715 | 186.1 |
| D | 14 | 34 | 139367 | 744.93 | 737 | 715 | 186.1 |
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 |  |