Observation information
- date-obs: 2022-05-20
- time-obs: 19:22:01.707500000
- date-end: 2022-05-20
- time-end: 23:14:56.701300000
- obs_id: A11_080T01_9000005146
- exposure: 8176.11268097
- 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_35921cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35921cztM0_level2_quad_clean.evt
|
Size (bytes) | 848,283,840 | 178,992,000 |
Size | 809.0 MB
| 170.7 MB
|
Events in quadrant A | 5,512,013 | 1,198,757 |
Events in quadrant B | 6,303,355 | 1,179,735 |
Events in quadrant C | 5,631,976 | 1,180,949 |
Events in quadrant D | 7,504,665 | 1,106,275 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 32 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 220 | 0 |
B | 0 | 220 | 0 |
C | 0 | 220 | 0 |
D | 0 | 220 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23218 | 4 |
B | 0 | 25726 | 3 |
C | 0 | 23148 | 3 |
D | 0 | 29609 | 3 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 10924 | 45 | 0.411937% |
B | 10924 | 304 | 2.782863% |
C | 10924 | 97 | 0.887953% |
D | 10924 | 451 | 4.128524% |
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 | 13639 | 10926 | 26 | 26 | 0.19% | 0.24% | |
B | 13639 | 10926 | 198 | 198 | 1.45% | 1.81% | |
C | 13639 | 10926 | 66 | 66 | 0.48% | 0.60% | |
D | 13639 | 10926 | 355 | 355 | 2.60% | 3.25% | |
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 | 287975 | 1092.74 | 1283 | 1259 | 262.4 |
A | 9 | 143 | 220044 | 833.84 | 1283 | 1259 | 262.4 |
A | 13 | 6 | 23636 | 85.28 | 1283 | 1259 | 262.4 |
B | 5 | 172 | 1132054 | 4684.99 | 1256 | 1230 | 241.4 |
B | 5 | 255 | 99115 | 405.54 | 1256 | 1230 | 241.4 |
B | 0 | 213 | 67981 | 276.55 | 1256 | 1230 | 241.4 |
C | 15 | 214 | 453633 | 1563.85 | 1238 | 1252 | 289.3 |
C | 0 | 10 | 317100 | 1091.87 | 1238 | 1252 | 289.3 |
C | 0 | 207 | 40612 | 136.07 | 1238 | 1252 | 289.3 |
D | 12 | 227 | 787068 | 2645.58 | 1218 | 1188 | 297.1 |
D | 12 | 6 | 500848 | 1682.05 | 1218 | 1188 | 297.1 |
D | 8 | 195 | 485926 | 1631.82 | 1218 | 1188 | 297.1 |
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 | |