Observation information
- date-obs: 2024-09-21
- time-obs: 18:53:51.612100000
- date-end: 2024-09-21
- time-end: 20:58:30.605800000
- obs_id: A13_037T01_9000006436
- exposure: 5438.68735474
- 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_48589cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48589cztM0_level2_quad_clean.evt
|
| Size (bytes) | 488,813,760 | 99,630,720 |
| Size | 466.2 MB
| 95.0 MB
|
| Events in quadrant A | 6,598,351 | 667,114 |
| Events in quadrant B | 5,321,686 | 611,162 |
| Events in quadrant C | 2,673,303 | 681,172 |
| Events in quadrant D | 3,001,773 | 608,368 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23673 | 3 |
| B | 0 | 20345 | 1 |
| C | 0 | 13001 | 1 |
| D | 0 | 13981 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6428 | 219 | 3.406970% |
| B | 6428 | 994 | 15.463597% |
| C | 6428 | 10 | 0.155569% |
| D | 6428 | 93 | 1.446795% |
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 | 7479 | 6429 | 62 | 62 | 0.83% | 0.96% |  |
| B | 7479 | 6429 | 745 | 745 | 9.96% | 11.59% |  |
| C | 7479 | 6429 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7479 | 6429 | 49 | 49 | 0.66% | 0.76% |  |
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 | 3979701 | 28161.61 | 674 | 661 | 141.3 |
| A | 13 | 254 | 12759 | 85.62 | 674 | 661 | 141.3 |
| A | 3 | 137 | 7933 | 51.47 | 674 | 661 | 141.3 |
| B | 12 | 16 | 2711453 | 21594.14 | 638 | 618 | 125.5 |
| B | 5 | 255 | 27014 | 210.27 | 638 | 618 | 125.5 |
| B | 10 | 14 | 26559 | 206.64 | 638 | 618 | 125.5 |
| C | 14 | 254 | 13254 | 77.75 | 682 | 684 | 161.7 |
| C | 13 | 61 | 4522 | 23.74 | 682 | 684 | 161.7 |
| C | 14 | 67 | 2617 | 11.96 | 682 | 684 | 161.7 |
| D | 13 | 171 | 271923 | 1647.57 | 668 | 647 | 164.7 |
| D | 2 | 165 | 83787 | 504.94 | 668 | 647 | 164.7 |
| D | 2 | 249 | 59136 | 355.23 | 668 | 647 | 164.7 |
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 |  |