Observation information
- date-obs: 2022-05-18
- time-obs: 16:23:25.808600000
- date-end: 2022-05-18
- time-end: 18:57:12.800400000
- obs_id: A11_080T01_9000005146
- exposure: 4829.35151479
- 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_35889cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35889cztM0_level2_quad_clean.evt
|
Size (bytes) | 546,845,760 | 106,709,760 |
Size | 521.5 MB
| 101.8 MB
|
Events in quadrant A | 3,111,389 | 723,899 |
Events in quadrant B | 5,024,021 | 691,275 |
Events in quadrant C | 3,471,538 | 708,898 |
Events in quadrant D | 4,532,866 | 673,732 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30 | 0 |
B | 0 | 30 | 0 |
C | 0 | 30 | 0 |
D | 0 | 30 | 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 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12940 | 3 |
B | 0 | 19001 | 2 |
C | 0 | 13787 | 2 |
D | 0 | 17595 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6211 | 13 | 0.209306% |
B | 6211 | 653 | 10.513605% |
C | 6211 | 121 | 1.948156% |
D | 6211 | 180 | 2.898084% |
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 | 9227 | 6213 | 0 | 0 | 0.00% | 0.00% | |
B | 9227 | 6213 | 502 | 502 | 5.44% | 8.08% | |
C | 9227 | 6213 | 99 | 99 | 1.07% | 1.59% | |
D | 9227 | 6213 | 151 | 151 | 1.64% | 2.43% | |
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 | 176624 | 1125.35 | 755 | 741 | 156.3 |
A | 13 | 254 | 11302 | 67.57 | 755 | 741 | 156.3 |
A | 13 | 6 | 9785 | 57.87 | 755 | 741 | 156.3 |
B | 5 | 63 | 1476378 | 10663.47 | 717 | 701 | 138.4 |
B | 5 | 172 | 516122 | 3724.51 | 717 | 701 | 138.4 |
B | 5 | 255 | 113823 | 817.44 | 717 | 701 | 138.4 |
C | 15 | 214 | 259386 | 1520.41 | 726 | 734 | 170.1 |
C | 15 | 208 | 207154 | 1213.38 | 726 | 734 | 170.1 |
C | 0 | 10 | 118319 | 691.19 | 726 | 734 | 170.1 |
D | 12 | 227 | 792093 | 4407.62 | 724 | 707 | 179.5 |
D | 8 | 195 | 456709 | 2539.7 | 724 | 707 | 179.5 |
D | 13 | 249 | 207913 | 1154.03 | 724 | 707 | 179.5 |
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 |
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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 | |