Observation information
- date-obs: 2022-05-21
- time-obs: 22:57:01.656800000
- date-end: 2022-05-22
- time-end: 01:20:05.651200000
- obs_id: A11_080T01_9000005146
- exposure: 3738.60614781
- 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_35937cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35937cztM0_level2_quad_clean.evt
|
Size (bytes) | 445,147,200 | 82,321,920 |
Size | 424.5 MB
| 78.5 MB
|
Events in quadrant A | 2,707,262 | 542,605 |
Events in quadrant B | 4,129,233 | 514,363 |
Events in quadrant C | 2,919,215 | 535,326 |
Events in quadrant D | 3,343,983 | 507,611 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 29 | 0 |
B | 0 | 29 | 0 |
C | 0 | 29 | 0 |
D | 0 | 30 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 114 | 0 |
B | 0 | 114 | 0 |
C | 0 | 114 | 0 |
D | 0 | 114 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11600 | 3 |
B | 0 | 15925 | 2 |
C | 0 | 12049 | 2 |
D | 0 | 13763 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5618 | 7 | 0.124600% |
B | 5618 | 461 | 8.205767% |
C | 5618 | 38 | 0.676397% |
D | 5618 | 62 | 1.103596% |
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 | 7229 | 5619 | 1 | 1 | 0.01% | 0.02% | |
B | 7229 | 5619 | 341 | 341 | 4.72% | 6.07% | |
C | 7229 | 5619 | 25 | 25 | 0.35% | 0.44% | |
D | 7229 | 5619 | 49 | 49 | 0.68% | 0.87% | |
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 | 10 | 83 | 168620 | 1272.02 | 647 | 635 | 132.1 |
A | 15 | 169 | 17474 | 127.51 | 647 | 635 | 132.1 |
A | 13 | 6 | 9416 | 66.49 | 647 | 635 | 132.1 |
B | 5 | 172 | 1495509 | 12603.04 | 620 | 605 | 118.6 |
B | 4 | 81 | 75173 | 628.66 | 620 | 605 | 118.6 |
B | 4 | 171 | 45166 | 375.68 | 620 | 605 | 118.6 |
C | 15 | 214 | 234493 | 1591.84 | 628 | 633 | 146.9 |
C | 0 | 207 | 125400 | 849.26 | 628 | 633 | 146.9 |
C | 0 | 10 | 108585 | 734.81 | 628 | 633 | 146.9 |
D | 8 | 195 | 308669 | 1996.63 | 622 | 604 | 154.3 |
D | 13 | 249 | 302051 | 1953.74 | 622 | 604 | 154.3 |
D | 10 | 118 | 123718 | 797.93 | 622 | 604 | 154.3 |
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 | |