Observation information
- date-obs: 2022-05-19
- time-obs: 20:48:41.752200000
- date-end: 2022-05-20
- time-end: 00:35:10.745700000
- obs_id: A11_080T01_9000005146
- exposure: 7392.12790501
- 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_35907cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35907cztM0_level2_quad_clean.evt
|
Size (bytes) | 896,676,480 | 162,187,200 |
Size | 855.1 MB
| 154.7 MB
|
Events in quadrant A | 5,310,878 | 1,079,809 |
Events in quadrant B | 6,512,826 | 1,052,844 |
Events in quadrant C | 5,759,933 | 1,055,616 |
Events in quadrant D | 8,849,397 | 982,886 |
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 | 218 | 0 |
B | 0 | 218 | 0 |
C | 0 | 218 | 0 |
D | 0 | 218 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 22597 | 4 |
B | 0 | 26290 | 3 |
C | 0 | 23392 | 3 |
D | 0 | 33311 | 3 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 10699 | 21 | 0.196280% |
B | 10699 | 351 | 3.280680% |
C | 10699 | 185 | 1.729134% |
D | 10699 | 742 | 6.935228% |
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 | 13534 | 10701 | 10 | 10 | 0.07% | 0.09% | |
B | 13534 | 10701 | 218 | 218 | 1.61% | 2.04% | |
C | 13534 | 10701 | 140 | 140 | 1.03% | 1.31% | |
D | 13534 | 10700 | 612 | 612 | 4.52% | 5.72% | |
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 | 282316 | 1102.76 | 1254 | 1234 | 254.9 |
A | 9 | 143 | 89612 | 346.73 | 1254 | 1234 | 254.9 |
A | 15 | 169 | 36858 | 139.76 | 1254 | 1234 | 254.9 |
B | 5 | 172 | 1116484 | 4736.93 | 1228 | 1200 | 235.4 |
B | 5 | 255 | 152575 | 642.93 | 1228 | 1200 | 235.4 |
B | 4 | 232 | 126346 | 531.53 | 1228 | 1200 | 235.4 |
C | 15 | 214 | 447130 | 1582.11 | 1206 | 1217 | 281.8 |
C | 9 | 69 | 353989 | 1251.65 | 1206 | 1217 | 281.8 |
C | 0 | 10 | 218075 | 769.42 | 1206 | 1217 | 281.8 |
D | 12 | 227 | 1298885 | 4480.3 | 1184 | 1153 | 289.7 |
D | 8 | 195 | 835997 | 2882.22 | 1184 | 1153 | 289.7 |
D | 10 | 118 | 622440 | 2144.94 | 1184 | 1153 | 289.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
|
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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 |
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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 | |