Observation information
- date-obs: 2022-05-16
- time-obs: 12:27:01.917500000
- date-end: 2022-05-16
- time-end: 14:43:28.912700000
- obs_id: A11_080T01_9000005146
- exposure: 2446.49786681
- 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_35857cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35857cztM0_level2_quad_clean.evt
|
Size (bytes) | 421,390,080 | 64,445,760 |
Size | 401.9 MB
| 61.5 MB
|
Events in quadrant A | 3,438,500 | 408,403 |
Events in quadrant B | 2,963,208 | 402,760 |
Events in quadrant C | 3,056,316 | 401,573 |
Events in quadrant D | 2,959,429 | 383,112 |
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 | 31 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 104 | 0 |
B | 0 | 104 | 0 |
C | 0 | 104 | 0 |
D | 0 | 104 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 13807 | 3 |
B | 0 | 11686 | 2 |
C | 0 | 11699 | 2 |
D | 0 | 11688 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5069 | 25 | 0.493194% |
B | 5069 | 70 | 1.380943% |
C | 5069 | 143 | 2.821069% |
D | 5069 | 76 | 1.499310% |
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 | 7192 | 5070 | 5 | 5 | 0.07% | 0.10% | |
B | 7192 | 5070 | 52 | 52 | 0.72% | 1.03% | |
C | 7192 | 5070 | 114 | 114 | 1.59% | 2.25% | |
D | 7192 | 5070 | 64 | 64 | 0.89% | 1.26% | |
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 | 691755 | 5242.83 | 656 | 646 | 131.8 |
A | 10 | 83 | 157886 | 1192.84 | 656 | 646 | 131.8 |
A | 7 | 48 | 25197 | 186.25 | 656 | 646 | 131.8 |
B | 5 | 172 | 323929 | 2697.24 | 642 | 628 | 119.9 |
B | 0 | 213 | 42130 | 346.24 | 642 | 628 | 119.9 |
B | 0 | 190 | 30889 | 252.46 | 642 | 628 | 119.9 |
C | 0 | 10 | 323605 | 2244.24 | 626 | 631 | 143.9 |
C | 15 | 214 | 211536 | 1465.51 | 626 | 631 | 143.9 |
C | 1 | 23 | 43920 | 300.8 | 626 | 631 | 143.9 |
D | 13 | 249 | 136356 | 878.88 | 634 | 621 | 154.4 |
D | 8 | 195 | 121038 | 779.7 | 634 | 621 | 154.4 |
D | 13 | 153 | 86854 | 558.36 | 634 | 621 | 154.4 |
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 | |