Observation information
- date-obs: 2024-12-09
- time-obs: 05:44:31.235700000
- date-end: 2024-12-09
- time-end: 07:40:46.213500000
- obs_id: A13_037T01_9000006440
- exposure: 125.367498875
- 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_49753cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49753cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,106,648,640 | 46,906,560 |
| Size | 1.0 GB
| 44.7 MB
|
| Events in quadrant A | 13,554,771 | 159,723 |
| Events in quadrant B | 3,895,314 | 631,570 |
| Events in quadrant C | 10,218,422 | 14,356 |
| Events in quadrant D | 12,844,239 | 205,985 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 44259 | 1 |
| B | 0 | 15396 | 1 |
| C | 0 | 34461 | 1 |
| D | 0 | 42206 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5851 | 4679 | 79.969236% |
| B | 5851 | 228 | 3.896770% |
| C | 5851 | 5749 | 98.256708% |
| D | 5851 | 3825 | 65.373440% |
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 | 6976 | 5851 | 5015 | 5015 | 71.89% | 85.71% |  |
| B | 6976 | 5851 | 91 | 91 | 1.30% | 1.56% |  |
| C | 6975 | 5850 | 1424 | 1424 | 20.42% | 24.34% |  |
| D | 6976 | 5851 | 3856 | 3856 | 55.28% | 65.90% |  |
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 | 6991669 | 55161.34 | 478 | 466 | 126.7 |
| A | 8 | 8 | 1313158 | 10357.28 | 478 | 466 | 126.7 |
| A | 7 | 64 | 473536 | 3732.57 | 478 | 466 | 126.7 |
| B | 4 | 21 | 270151 | 1967.43 | 653 | 633 | 137.0 |
| B | 10 | 28 | 209162 | 1522.22 | 653 | 633 | 137.0 |
| B | 4 | 206 | 154904 | 1126.15 | 653 | 633 | 137.0 |
| C | 15 | 180 | 4530010 | 111199.51 | 95 | 91 | 40.7 |
| C | 15 | 190 | 1289114 | 31642.67 | 95 | 91 | 40.7 |
| C | 15 | 163 | 911867 | 22382.09 | 95 | 91 | 40.7 |
| D | 15 | 168 | 1724619 | 14181.51 | 411 | 396 | 121.6 |
| D | 10 | 98 | 1370212 | 11266.56 | 411 | 396 | 121.6 |
| D | 15 | 40 | 1159078 | 9530.01 | 411 | 396 | 121.6 |
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 |  |