Observation information
- date-obs: 2022-05-16
- time-obs: 17:33:41.907500000
- date-end: 2022-05-16
- time-end: 19:56:13.903900000
- obs_id: A11_080T01_9000005146
- exposure: 4562.84318477
- 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_35860cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35860cztM0_level2_quad_clean.evt
|
Size (bytes) | 479,496,960 | 101,047,680 |
Size | 457.3 MB
| 96.4 MB
|
Events in quadrant A | 4,047,456 | 649,144 |
Events in quadrant B | 3,106,713 | 685,663 |
Events in quadrant C | 3,178,660 | 677,650 |
Events in quadrant D | 3,796,638 | 643,967 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 27 | 0 |
B | 0 | 27 | 0 |
C | 0 | 27 | 0 |
D | 0 | 28 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 116 | 0 |
B | 0 | 116 | 0 |
C | 0 | 116 | 0 |
D | 0 | 116 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15488 | 3 |
B | 0 | 12772 | 2 |
C | 0 | 12658 | 2 |
D | 0 | 15151 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5773 | 531 | 9.197991% |
B | 5773 | 61 | 1.056643% |
C | 5773 | 92 | 1.593625% |
D | 5773 | 124 | 2.147930% |
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 | 7147 | 5774 | 454 | 454 | 6.35% | 7.86% | |
B | 7147 | 5774 | 36 | 36 | 0.50% | 0.62% | |
C | 7147 | 5774 | 66 | 66 | 0.92% | 1.14% | |
D | 7147 | 5774 | 92 | 92 | 1.29% | 1.59% | |
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 | 1262411 | 9151.1 | 667 | 654 | 137.9 |
A | 10 | 83 | 146168 | 1055.36 | 667 | 654 | 137.9 |
A | 7 | 48 | 32050 | 227.7 | 667 | 654 | 137.9 |
B | 5 | 172 | 300397 | 2249.6 | 688 | 673 | 133.2 |
B | 0 | 213 | 40779 | 301.02 | 688 | 673 | 133.2 |
B | 5 | 255 | 28343 | 207.68 | 688 | 673 | 133.2 |
C | 15 | 214 | 240454 | 1518.54 | 674 | 684 | 157.9 |
C | 0 | 10 | 189792 | 1197.68 | 674 | 684 | 157.9 |
C | 1 | 23 | 95855 | 602.75 | 674 | 684 | 157.9 |
D | 2 | 153 | 266211 | 1602.1 | 672 | 655 | 165.8 |
D | 13 | 249 | 217656 | 1309.17 | 672 | 655 | 165.8 |
D | 8 | 195 | 204617 | 1230.51 | 672 | 655 | 165.8 |
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 | |