Observation information
- date-obs: 2022-05-19
- time-obs: 08:25:21.774800000
- date-end: 2022-05-19
- time-end: 10:41:13.770500000
- obs_id: A11_080T01_9000005146
- exposure: 2272.878199
- 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_35899cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35899cztM0_level2_quad_clean.evt
|
Size (bytes) | 467,334,720 | 64,140,480 |
Size | 445.7 MB
| 61.2 MB
|
Events in quadrant A | 3,334,095 | 404,359 |
Events in quadrant B | 3,220,252 | 406,323 |
Events in quadrant C | 3,143,495 | 384,901 |
Events in quadrant D | 4,096,583 | 375,657 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 28 | 0 |
B | 0 | 28 | 0 |
C | 0 | 28 | 0 |
D | 0 | 29 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108 | 0 |
B | 0 | 108 | 0 |
C | 0 | 108 | 0 |
D | 0 | 108 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13036 | 3 |
B | 0 | 12702 | 2 |
C | 0 | 12240 | 2 |
D | 0 | 15994 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5294 | 45 | 0.850019% |
B | 5294 | 80 | 1.511145% |
C | 5294 | 109 | 2.058935% |
D | 5294 | 126 | 2.380053% |
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 | 7387 | 5295 | 31 | 31 | 0.42% | 0.59% | |
B | 7387 | 5295 | 36 | 36 | 0.49% | 0.68% | |
C | 7387 | 5295 | 79 | 79 | 1.07% | 1.49% | |
D | 7387 | 5295 | 123 | 123 | 1.67% | 2.32% | |
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 | 15 | 169 | 389347 | 2730.88 | 713 | 705 | 142.3 |
A | 10 | 83 | 164213 | 1148.93 | 713 | 705 | 142.3 |
A | 7 | 3 | 13317 | 88.62 | 713 | 705 | 142.3 |
B | 5 | 172 | 262353 | 2021.78 | 693 | 678 | 129.4 |
B | 5 | 255 | 159548 | 1227.48 | 693 | 678 | 129.4 |
B | 0 | 213 | 32012 | 242.1 | 693 | 678 | 129.4 |
C | 0 | 10 | 253389 | 1659.61 | 668 | 676 | 152.3 |
C | 15 | 214 | 223646 | 1464.28 | 668 | 676 | 152.3 |
C | 9 | 69 | 32078 | 206.22 | 668 | 676 | 152.3 |
D | 12 | 227 | 528628 | 3192.63 | 680 | 663 | 165.4 |
D | 8 | 195 | 436731 | 2636.92 | 680 | 663 | 165.4 |
D | 7 | 223 | 155157 | 934.23 | 680 | 663 | 165.4 |
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 | |