Observation information
- date-obs: 2022-05-19
- time-obs: 01:40:38.791700000
- date-end: 2022-05-19
- time-end: 03:42:24.770700000
- obs_id: A11_080T01_9000005146
- exposure: 3559.66755135
- 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_35894cztM0_level2.evt
| modeM0/AS1A11_080T01_9000005146_35894cztM0_level2_quad_clean.evt
|
Size (bytes) | 489,798,720 | 80,588,160 |
Size | 467.1 MB
| 76.9 MB
|
Events in quadrant A | 2,798,340 | 529,009 |
Events in quadrant B | 3,623,745 | 518,667 |
Events in quadrant C | 3,100,254 | 517,441 |
Events in quadrant D | 4,926,945 | 478,713 |
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 | 116 | 0 |
B | 0 | 116 | 0 |
C | 0 | 116 | 0 |
D | 0 | 116 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11827 | 3 |
B | 0 | 14521 | 2 |
C | 0 | 12595 | 2 |
D | 0 | 18591 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5664 | 7 | 0.123588% |
B | 5664 | 354 | 6.250000% |
C | 5664 | 36 | 0.635593% |
D | 5664 | 240 | 4.237288% |
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 | 7306 | 5665 | 2 | 2 | 0.03% | 0.04% | |
B | 7306 | 5665 | 239 | 239 | 3.27% | 4.22% | |
C | 7306 | 5665 | 29 | 29 | 0.40% | 0.51% | |
D | 7306 | 5665 | 255 | 255 | 3.49% | 4.50% | |
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 | 171550 | 1257.92 | 666 | 655 | 135.9 |
A | 7 | 3 | 32634 | 235.39 | 666 | 655 | 135.9 |
A | 13 | 6 | 12668 | 88.43 | 666 | 655 | 135.9 |
B | 5 | 172 | 606239 | 4937.9 | 642 | 627 | 122.6 |
B | 5 | 63 | 323049 | 2628.89 | 642 | 627 | 122.6 |
B | 5 | 255 | 84278 | 682.05 | 642 | 627 | 122.6 |
C | 0 | 207 | 249027 | 1669.32 | 641 | 646 | 148.8 |
C | 15 | 214 | 240476 | 1611.85 | 641 | 646 | 148.8 |
C | 0 | 10 | 83579 | 557.38 | 641 | 646 | 148.8 |
D | 12 | 227 | 1694532 | 10815.08 | 633 | 618 | 156.6 |
D | 13 | 249 | 227311 | 1447.36 | 633 | 618 | 156.6 |
D | 13 | 153 | 181667 | 1155.94 | 633 | 618 | 156.6 |
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 | |