Observation information
- date-obs: 2025-06-10
- time-obs: 11:56:23.745600000
- date-end: 2025-06-10
- time-end: 14:05:21.723900000
- obs_id: A13_037T01_9000006476
- exposure: 25.6488083005
- 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_52474cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006476_52474cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,183,965,120 | 78,125,760 |
| Size | 1.1 GB
| 74.5 MB
|
| Events in quadrant A | 4,387,697 | 726,037 |
| Events in quadrant B | 7,701,483 | 719,722 |
| Events in quadrant C | 12,362,369 | 378,599 |
| Events in quadrant D | 18,776,895 | 2,228 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18235 | 0 |
| B | 0 | 28264 | 0 |
| C | 0 | 42026 | 0 |
| D | 0 | 61030 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7738 | 99 | 1.279400% |
| B | 7739 | 845 | 10.918723% |
| C | 7738 | 3620 | 46.782114% |
| D | 7738 | 7721 | 99.780305% |
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 | 7738 | 7738 | 39 | 39 | 0.50% | 0.50% |  |
| B | 7739 | 7739 | 374 | 374 | 4.83% | 4.83% |  |
| C | 7738 | 7737 | 2911 | 2911 | 37.62% | 37.62% |  |
| D | 7737 | 7736 | 6881 | 6881 | 88.94% | 88.95% |  |
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 | 426969 | 2035.32 | 846 | 823 | 209.4 |
| A | 10 | 17 | 162118 | 770.36 | 846 | 823 | 209.4 |
| A | 12 | 17 | 102201 | 484.19 | 846 | 823 | 209.4 |
| B | 10 | 254 | 2874789 | 16227.62 | 814 | 784 | 177.1 |
| B | 7 | 0 | 473660 | 2670.02 | 814 | 784 | 177.1 |
| B | 4 | 171 | 322257 | 1815.15 | 814 | 784 | 177.1 |
| C | 15 | 224 | 7065168 | 42296.41 | 614 | 610 | 167.0 |
| C | 0 | 209 | 2081194 | 12456.72 | 614 | 610 | 167.0 |
| C | 2 | 12 | 186855 | 1115.07 | 614 | 610 | 167.0 |
| D | 15 | 93 | 16737168 | 319746.86 | 175 | 166 | 52.3 |
| D | 6 | 42 | 1073367 | 20502.64 | 175 | 166 | 52.3 |
| D | 12 | 17 | 50006 | 952.15 | 175 | 166 | 52.3 |
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 |  |