Observation information
- date-obs: 2024-09-20
- time-obs: 23:37:19.670200000
- date-end: 2024-09-21
- time-end: 01:51:49.663600000
- obs_id: A13_037T01_9000006436
- exposure: 5550.28567511
- 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_48577cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48577cztM0_level2_quad_clean.evt
|
| Size (bytes) | 513,587,520 | 103,674,240 |
| Size | 489.8 MB
| 98.9 MB
|
| Events in quadrant A | 6,678,419 | 688,418 |
| Events in quadrant B | 3,000,397 | 742,110 |
| Events in quadrant C | 2,738,068 | 711,878 |
| Events in quadrant D | 6,094,096 | 546,790 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24140 | 2 |
| B | 0 | 13574 | 2 |
| C | 0 | 13113 | 2 |
| D | 0 | 22889 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 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 | 6450 | 281 | 4.356589% |
| B | 6450 | 88 | 1.364341% |
| C | 6450 | 16 | 0.248062% |
| D | 6450 | 971 | 15.054264% |
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 | 7630 | 6451 | 135 | 135 | 1.77% | 2.09% |  |
| B | 7630 | 6451 | 16 | 16 | 0.21% | 0.25% |  |
| C | 7630 | 6451 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7630 | 6451 | 842 | 842 | 11.04% | 13.05% |  |
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 | 3894338 | 27112.52 | 691 | 677 | 143.6 |
| A | 13 | 248 | 109409 | 757.12 | 691 | 677 | 143.6 |
| A | 13 | 254 | 11976 | 78.67 | 691 | 677 | 143.6 |
| B | 5 | 255 | 113185 | 816.84 | 704 | 682 | 137.7 |
| B | 12 | 16 | 81207 | 584.66 | 704 | 682 | 137.7 |
| B | 12 | 111 | 17199 | 119.92 | 704 | 682 | 137.7 |
| C | 14 | 254 | 10273 | 58.35 | 696 | 698 | 164.1 |
| C | 12 | 250 | 10059 | 57.05 | 696 | 698 | 164.1 |
| C | 14 | 67 | 7851 | 43.59 | 696 | 698 | 164.1 |
| D | 2 | 165 | 3088935 | 19611.67 | 631 | 612 | 157.5 |
| D | 13 | 171 | 430125 | 2727.52 | 631 | 612 | 157.5 |
| D | 12 | 128 | 79069 | 498.22 | 631 | 612 | 157.5 |
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 |  |