Observation information
- date-obs: 2022-04-16
- time-obs: 08:20:54.800800000
- date-end: 2022-04-16
- time-end: 10:22:30.795600000
- obs_id: T05_022T01_9000005070
- exposure: 2459.87538798
- sourceid: 4U 1820-30
- observer: aruberi
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1T05_022T01_9000005070_35410cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35410cztM0_level2_quad_clean.evt
|
Size (bytes) | 683,233,920 | 54,167,040 |
Size | 651.6 MB
| 51.7 MB
|
Events in quadrant A | 2,681,541 | 337,382 |
Events in quadrant B | 10,250,502 | 260,896 |
Events in quadrant C | 3,420,591 | 333,664 |
Events in quadrant D | 3,960,606 | 315,918 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11395 | 2 |
B | 0 | 34287 | 1 |
C | 0 | 13516 | 1 |
D | 0 | 15348 | 1 |
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 M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 17 | 0 |
B | 0 | 17 | 0 |
C | 0 | 17 | 0 |
D | 0 | 17 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5594 | 12 | 0.214516% |
B | 5594 | 3259 | 58.258849% |
C | 5594 | 64 | 1.144083% |
D | 5594 | 291 | 5.202002% |
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 | 7296 | 5595 | 3 | 3 | 0.04% | 0.05% | |
B | 7296 | 5595 | 2842 | 2842 | 38.95% | 50.80% | |
C | 7296 | 5595 | 52 | 52 | 0.71% | 0.93% | |
D | 7296 | 5595 | 211 | 211 | 2.89% | 3.77% | |
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 | 110586 | 833.68 | 654 | 641 | 131.9 |
A | 7 | 16 | 20044 | 147.13 | 654 | 641 | 131.9 |
A | 13 | 6 | 17279 | 126.16 | 654 | 641 | 131.9 |
B | 4 | 251 | 3598804 | 39591.77 | 474 | 462 | 90.9 |
B | 5 | 14 | 1249891 | 13747.19 | 474 | 462 | 90.9 |
B | 5 | 31 | 1216561 | 13380.47 | 474 | 462 | 90.9 |
C | 0 | 10 | 410799 | 2748.17 | 637 | 640 | 149.2 |
C | 0 | 207 | 253768 | 1696.02 | 637 | 640 | 149.2 |
C | 15 | 214 | 231006 | 1543.51 | 637 | 640 | 149.2 |
D | 13 | 249 | 511311 | 3336.53 | 627 | 609 | 153.1 |
D | 2 | 152 | 190466 | 1240.37 | 627 | 609 | 153.1 |
D | 2 | 31 | 177403 | 1155.03 | 627 | 609 | 153.1 |
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 |
|
|
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 | |