Observation information
- date-obs: 2022-05-22
- time-obs: 23:43:32.611800000
- date-end: 2022-05-23
- time-end: 01:41:04.607200000
- obs_id: A11_080T01_9000005146
- exposure: 3169.67251126
- 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_35952cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35952cztM0_level2_quad_clean.evt
|
Size (bytes) | 946,232,640 | 71,553,600 |
Size | 902.4 MB
| 68.2 MB
|
Events in quadrant A | 5,767,859 | 497,623 |
Events in quadrant B | 12,854,620 | 306,786 |
Events in quadrant C | 5,731,088 | 501,431 |
Events in quadrant D | 3,940,242 | 481,971 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16 | 0 |
B | 0 | 16 | 0 |
C | 0 | 16 | 0 |
D | 0 | 16 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 112 | 0 |
B | 0 | 112 | 0 |
C | 0 | 112 | 0 |
D | 0 | 112 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20816 | 3 |
B | 0 | 41770 | 2 |
C | 0 | 20475 | 2 |
D | 0 | 15540 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5379 | 1484 | 27.588771% |
B | 5379 | 5200 | 96.672244% |
C | 5379 | 1682 | 31.269753% |
D | 5379 | 262 | 4.870794% |
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 | 7052 | 5380 | 993 | 993 | 14.08% | 18.46% | |
B | 7052 | 5380 | 4855 | 4855 | 68.85% | 90.24% | |
C | 7052 | 5380 | 887 | 887 | 12.58% | 16.49% | |
D | 7052 | 5380 | 208 | 208 | 2.95% | 3.87% | |
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 | 3477599 | 30401.78 | 557 | 549 | 114.4 |
A | 10 | 83 | 126264 | 1099.2 | 557 | 549 | 114.4 |
A | 13 | 6 | 8514 | 69.64 | 557 | 549 | 114.4 |
B | 5 | 14 | 3291165 | 46014.09 | 366 | 357 | 71.5 |
B | 5 | 31 | 3241005 | 45312.72 | 366 | 357 | 71.5 |
B | 5 | 15 | 3232576 | 45194.86 | 366 | 357 | 71.5 |
C | 9 | 187 | 3657633 | 33278.7 | 466 | 469 | 109.9 |
C | 15 | 214 | 178335 | 1618.51 | 466 | 469 | 109.9 |
C | 0 | 10 | 34452 | 309.23 | 466 | 469 | 109.9 |
D | 2 | 31 | 605527 | 4155.97 | 592 | 576 | 145.6 |
D | 7 | 223 | 525232 | 3604.35 | 592 | 576 | 145.6 |
D | 1 | 52 | 125639 | 859.17 | 592 | 576 | 145.6 |
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 | |