Observation information
- date-obs: 2024-09-17
- time-obs: 20:58:59.884700000
- date-end: 2024-09-17
- time-end: 23:08:21.878200000
- obs_id: A13_037T01_9000006436
- exposure: 6168.28137219
- 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_9000006436_48531cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48531cztM0_level2_quad_clean.evt
|
| Size (bytes) | 435,669,120 | 101,237,760 |
| Size | 415.5 MB
| 96.5 MB
|
| Events in quadrant A | 6,569,024 | 656,390 |
| Events in quadrant B | 2,991,532 | 692,954 |
| Events in quadrant C | 2,668,666 | 671,580 |
| Events in quadrant D | 3,397,163 | 594,376 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24285 | 577 |
| B | 0 | 13905 | 120 |
| C | 0 | 13178 | 101 |
| D | 0 | 15346 | 126 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 1 |
| B | 0 | 12 | 0 |
| C | 0 | 13 | 1 |
| D | 0 | 13 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6413 | 170 | 2.650865% |
| B | 6454 | 66 | 1.022622% |
| C | 6459 | 6 | 0.092894% |
| D | 6453 | 169 | 2.618937% |
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 | 7556 | 6447 | 91 | 91 | 1.20% | 1.41% |  |
| B | 7556 | 6480 | 49 | 49 | 0.65% | 0.76% |  |
| C | 7555 | 6485 | 4 | 4 | 0.05% | 0.06% |  |
| D | 7553 | 6482 | 130 | 130 | 1.72% | 2.01% |  |
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 | 3923997 | 28503.96 | 659 | 647 | 137.6 |
| A | 12 | 189 | 75353 | 542.75 | 659 | 647 | 137.6 |
| A | 13 | 254 | 12087 | 83.11 | 659 | 647 | 137.6 |
| B | 5 | 255 | 257107 | 1947.53 | 669 | 647 | 131.7 |
| B | 0 | 183 | 26832 | 198.85 | 669 | 647 | 131.7 |
| B | 8 | 234 | 18066 | 132.28 | 669 | 647 | 131.7 |
| C | 3 | 233 | 25940 | 161.55 | 666 | 668 | 156.4 |
| C | 14 | 254 | 17683 | 108.77 | 666 | 668 | 156.4 |
| C | 12 | 250 | 12513 | 75.72 | 666 | 668 | 156.4 |
| D | 2 | 165 | 437861 | 2688.2 | 650 | 630 | 162.6 |
| D | 14 | 34 | 331306 | 2033.08 | 650 | 630 | 162.6 |
| D | 12 | 233 | 57734 | 351.09 | 650 | 630 | 162.6 |
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 |  |