Observation information
- date-obs: 2024-12-16
- time-obs: 09:39:36.264100000
- date-end: 2024-12-16
- time-end: 11:35:59.244000000
- obs_id: A13_037T01_9000006440
- exposure: 730.794322968
- 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_49859cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006440_49859cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,276,107,840 | 50,356,800 |
| Size | 1.2 GB
| 48.0 MB
|
| Events in quadrant A | 16,795,898 | 242,006 |
| Events in quadrant B | 4,858,641 | 696,551 |
| Events in quadrant C | 12,048,377 | 31,953 |
| Events in quadrant D | 12,993,111 | 58,373 |
Level1 data integrity
| 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 M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 54616 | 0 |
| B | 0 | 19250 | 0 |
| C | 0 | 40635 | 0 |
| D | 0 | 43388 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6983 | 6147 | 88.028068% |
| B | 6983 | 346 | 4.954890% |
| C | 6983 | 6983 | 100.000000% |
| D | 6983 | 6983 | 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 | 6982 | 6982 | 5863 | 5863 | 83.97% | 83.97% |  |
| B | 6983 | 6983 | 269 | 269 | 3.85% | 3.85% |  |
| C | 6982 | 6982 | 2188 | 2188 | 31.34% | 31.34% |  |
| D | 6982 | 6982 | 2089 | 2089 | 29.92% | 29.92% |  |
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 | 7943603 | 98073.02 | 291 | 281 | 81.0 |
| A | 4 | 4 | 5388783 | 66529.68 | 291 | 281 | 81.0 |
| A | 3 | 99 | 606022 | 7478.84 | 291 | 281 | 81.0 |
| B | 10 | 44 | 726056 | 4660.81 | 728 | 704 | 155.6 |
| B | 4 | 206 | 344589 | 2209.66 | 728 | 704 | 155.6 |
| B | 9 | 218 | 225134 | 1442.09 | 728 | 704 | 155.6 |
| C | 4 | 111 | 2410628 | 95983.32 | 54 | 52 | 25.1 |
| C | 15 | 230 | 1240057 | 49374.01 | 54 | 52 | 25.1 |
| C | 15 | 147 | 1150920 | 45824.79 | 54 | 52 | 25.1 |
| D | 8 | 129 | 5824559 | 144105.97 | 88 | 82 | 40.4 |
| D | 7 | 61 | 3172138 | 78481.25 | 88 | 82 | 40.4 |
| D | 15 | 185 | 703288 | 17398.33 | 88 | 82 | 40.4 |
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 |  |