Observation information
- date-obs: 2022-05-16
- time-obs: 10:38:41.922100000
- date-end: 2022-05-16
- time-end: 12:59:24.916500000
- obs_id: A11_080T01_9000005146
- exposure: 2058.41736579
- 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_35856cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35856cztM0_level2_quad_clean.evt
|
Size (bytes) | 420,269,760 | 56,586,240 |
Size | 400.8 MB
| 54.0 MB
|
Events in quadrant A | 2,930,630 | 351,149 |
Events in quadrant B | 3,247,381 | 340,770 |
Events in quadrant C | 3,105,115 | 338,107 |
Events in quadrant D | 3,098,810 | 325,933 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 33 | 0 |
B | 0 | 33 | 0 |
C | 0 | 33 | 0 |
D | 0 | 34 | 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 | 11671 | 3 |
B | 0 | 12658 | 2 |
C | 0 | 11928 | 2 |
D | 0 | 12278 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5095 | 6 | 0.117763% |
B | 5095 | 114 | 2.237488% |
C | 5095 | 129 | 2.531894% |
D | 5095 | 75 | 1.472031% |
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 | 7218 | 5096 | 2 | 2 | 0.03% | 0.04% | |
B | 7218 | 5096 | 81 | 81 | 1.12% | 1.59% | |
C | 7218 | 5096 | 112 | 112 | 1.55% | 2.20% | |
D | 7218 | 5096 | 55 | 55 | 0.76% | 1.08% | |
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 | 160180 | 1167.33 | 685 | 675 | 136.6 |
A | 15 | 169 | 78751 | 571.39 | 685 | 675 | 136.6 |
A | 7 | 48 | 24802 | 176.57 | 685 | 675 | 136.6 |
B | 5 | 172 | 361686 | 2924.7 | 665 | 653 | 123.4 |
B | 0 | 213 | 189396 | 1528.99 | 665 | 653 | 123.4 |
B | 0 | 190 | 39956 | 318.39 | 665 | 653 | 123.4 |
C | 0 | 10 | 310031 | 2098.48 | 644 | 651 | 147.4 |
C | 15 | 214 | 212275 | 1435.42 | 644 | 651 | 147.4 |
C | 1 | 23 | 31636 | 210.17 | 644 | 651 | 147.4 |
D | 13 | 249 | 166270 | 1022.1 | 658 | 641 | 162.0 |
D | 8 | 195 | 92066 | 564.19 | 658 | 641 | 162.0 |
D | 2 | 250 | 80858 | 495.02 | 658 | 641 | 162.0 |
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 |
|
|
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 | |