Observation information
- date-obs: 2024-12-12
- time-obs: 10:04:35.354100000
- date-end: 2024-12-12
- time-end: 12:04:29.332400000
- obs_id: A13_037T01_9000006440
- exposure: 345.603311837
- 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_49800cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49800cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,157,964,480 | 55,103,040 |
| Size | 1.1 GB
| 52.6 MB
|
| Events in quadrant A | 11,511,118 | 389,439 |
| Events in quadrant B | 4,904,961 | 711,824 |
| Events in quadrant C | 8,345,041 | 36,745 |
| Events in quadrant D | 17,544,365 | 29,091 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 39127 | 0 |
| B | 0 | 19542 | 7 |
| C | 0 | 29913 | 0 |
| D | 0 | 56987 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7195 | 3206 | 44.558721% |
| B | 7194 | 429 | 5.963303% |
| C | 7194 | 6860 | 95.357242% |
| D | 7194 | 6939 | 96.455379% |
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 | 7194 | 7194 | 2875 | 2875 | 39.96% | 39.96% |  |
| B | 7193 | 7193 | 233 | 233 | 3.24% | 3.24% |  |
| C | 7193 | 7193 | 1307 | 1307 | 18.17% | 18.17% |  |
| D | 7193 | 7193 | 6517 | 6517 | 90.60% | 90.60% |  |
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 | 0 | 98 | 4954363 | 31276.72 | 617 | 601 | 158.4 |
| A | 15 | 63 | 944400 | 5958.89 | 617 | 601 | 158.4 |
| A | 3 | 1 | 306504 | 1931.39 | 617 | 601 | 158.4 |
| B | 10 | 44 | 389054 | 2371.33 | 771 | 748 | 163.8 |
| B | 10 | 28 | 295426 | 1799.56 | 771 | 748 | 163.8 |
| B | 12 | 18 | 291597 | 1776.17 | 771 | 748 | 163.8 |
| C | 15 | 147 | 3300010 | 89671.9 | 105 | 104 | 36.8 |
| C | 15 | 230 | 981021 | 26655.51 | 105 | 104 | 36.8 |
| C | 15 | 197 | 737541 | 20039.17 | 105 | 104 | 36.8 |
| D | 7 | 61 | 4060945 | 32525.22 | 347 | 330 | 124.8 |
| D | 15 | 168 | 3500568 | 28036.64 | 347 | 330 | 124.8 |
| D | 8 | 176 | 1526527 | 12224.72 | 347 | 330 | 124.8 |
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 |  |