Observation information
- date-obs: 2022-05-22
- time-obs: 16:25:21.622700000
- date-end: 2022-05-22
- time-end: 18:45:42.619400000
- obs_id: A11_080T01_9000005146
- exposure: 4410.86992867
- sourceid: Cygnus X-1
- observer: ajayratheesh
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_080T01_9000005146_35948cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35948cztM0_level2_quad_clean.evt
|
Size (bytes) | 588,191,040 | 98,231,040 |
Size | 560.9 MB
| 93.7 MB
|
Events in quadrant A | 2,992,090 | 677,148 |
Events in quadrant B | 7,619,105 | 585,543 |
Events in quadrant C | 3,256,555 | 660,729 |
Events in quadrant D | 3,537,356 | 630,568 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23 | 0 |
B | 0 | 23 | 0 |
C | 0 | 23 | 0 |
D | 0 | 24 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 124 | 0 |
B | 0 | 124 | 0 |
C | 0 | 124 | 0 |
D | 0 | 124 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12486 | 3 |
B | 0 | 26584 | 2 |
C | 0 | 13063 | 2 |
D | 0 | 14331 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6014 | 11 | 0.182907% |
B | 6014 | 2133 | 35.467243% |
C | 6014 | 69 | 1.147323% |
D | 6014 | 78 | 1.296974% |
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 | 7296 | 6015 | 0 | 0 | 0.00% | 0.00% | |
B | 7296 | 6014 | 1760 | 1760 | 24.12% | 29.27% | |
C | 7296 | 6015 | 60 | 60 | 0.82% | 1.00% | |
D | 7296 | 6015 | 63 | 63 | 0.86% | 1.05% | |
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 | 178138 | 1169.49 | 726 | 711 | 151.7 |
A | 13 | 254 | 9593 | 58.54 | 726 | 711 | 151.7 |
A | 3 | 137 | 7402 | 44.1 | 726 | 711 | 151.7 |
B | 5 | 172 | 2190871 | 18339.91 | 614 | 601 | 119.4 |
B | 5 | 14 | 940670 | 7871.53 | 614 | 601 | 119.4 |
B | 5 | 31 | 928508 | 7769.69 | 614 | 601 | 119.4 |
C | 15 | 214 | 250044 | 1520.92 | 699 | 706 | 163.9 |
C | 0 | 10 | 225852 | 1373.35 | 699 | 706 | 163.9 |
C | 0 | 207 | 19874 | 116.92 | 699 | 706 | 163.9 |
D | 8 | 195 | 198186 | 1146.15 | 701 | 686 | 172.3 |
D | 1 | 52 | 127017 | 733.14 | 701 | 686 | 172.3 |
D | 10 | 118 | 108366 | 624.9 | 701 | 686 | 172.3 |
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 | |