Observation information
- date-obs: 2024-09-23
- time-obs: 05:28:59.507300000
- date-end: 2024-09-23
- time-end: 07:42:22.500300000
- obs_id: A13_037T01_9000006436
- exposure: 7146.9219867
- 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_48610cztM0_level2.fits
| modeM0/AS1A13_037T01_9000006436_48610cztM0_level2_quad_clean.evt
|
Size (bytes) | 527,074,560 | 119,577,600 |
Size | 502.7 MB
| 114.0 MB
|
Events in quadrant A | 8,238,063 | 740,442 |
Events in quadrant B | 3,492,283 | 819,106 |
Events in quadrant C | 3,674,617 | 797,095 |
Events in quadrant D | 3,500,641 | 722,148 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30035 | 1 |
B | 0 | 16296 | 1 |
C | 0 | 17012 | 1 |
D | 0 | 16611 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 2 | 0 |
B | 0 | 2 | 0 |
C | 0 | 3 | 0 |
D | 0 | 3 | 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 | 7791 | 648 | 8.317289% |
B | 7791 | 244 | 3.131819% |
C | 7791 | 112 | 1.437556% |
D | 7791 | 56 | 0.718778% |
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 | 7791 | 7791 | 171 | 171 | 2.19% | 2.19% | |
B | 7791 | 7791 | 4 | 4 | 0.05% | 0.05% | |
C | 7791 | 7791 | 62 | 62 | 0.80% | 0.80% | |
D | 7791 | 7791 | 7 | 7 | 0.09% | 0.09% | |
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 | 4324671 | 24231.51 | 846 | 826 | 178.4 |
A | 13 | 248 | 611582 | 3422.77 | 846 | 826 | 178.4 |
A | 13 | 254 | 13451 | 70.75 | 846 | 826 | 178.4 |
B | 5 | 255 | 24425 | 135.59 | 864 | 834 | 174.0 |
B | 12 | 111 | 22932 | 127.01 | 864 | 834 | 174.0 |
B | 0 | 197 | 21882 | 120.97 | 864 | 834 | 174.0 |
C | 12 | 250 | 331873 | 1654.65 | 851 | 854 | 200.1 |
C | 1 | 241 | 13915 | 65.29 | 851 | 854 | 200.1 |
C | 14 | 254 | 7261 | 32.03 | 851 | 854 | 200.1 |
D | 2 | 165 | 109674 | 513.83 | 847 | 819 | 211.8 |
D | 10 | 199 | 72584 | 338.75 | 847 | 819 | 211.8 |
D | 2 | 234 | 39542 | 182.79 | 847 | 819 | 211.8 |
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 |
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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 | |