Observation information
- date-obs: 2022-04-15
- time-obs: 21:40:22.823300000
- date-end: 2022-04-15
- time-end: 23:50:29.819300000
- obs_id: T05_022T01_9000005070
- exposure: 3891.81633921
- 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_35404cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35404cztM0_level2_quad_clean.evt
|
Size (bytes) | 585,138,240 | 79,816,320 |
Size | 558.0 MB
| 76.1 MB
|
Events in quadrant A | 2,571,040 | 537,763 |
Events in quadrant B | 5,360,886 | 535,594 |
Events in quadrant C | 3,054,196 | 535,699 |
Events in quadrant D | 6,379,398 | 439,576 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10963 | 3 |
B | 0 | 19444 | 2 |
C | 0 | 12060 | 2 |
D | 0 | 22554 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 108 | 0 |
B | 0 | 108 | 0 |
C | 0 | 108 | 0 |
D | 0 | 108 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 25 | 0 |
B | 0 | 25 | 0 |
C | 0 | 25 | 0 |
D | 0 | 26 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5249 | 12 | 0.228615% |
B | 5249 | 847 | 16.136407% |
C | 5249 | 129 | 2.457611% |
D | 5249 | 1247 | 23.756906% |
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 | 7043 | 5250 | 2 | 2 | 0.03% | 0.04% | |
B | 7043 | 5250 | 646 | 646 | 9.17% | 12.30% | |
C | 7043 | 5250 | 95 | 95 | 1.35% | 1.81% | |
D | 7043 | 5250 | 1019 | 1019 | 14.47% | 19.41% | |
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 | 123875 | 971.12 | 627 | 614 | 126.9 |
A | 9 | 143 | 11973 | 89.49 | 627 | 614 | 126.9 |
A | 13 | 6 | 11254 | 83.83 | 627 | 614 | 126.9 |
B | 4 | 251 | 1634643 | 14537.81 | 587 | 572 | 112.4 |
B | 5 | 14 | 315074 | 2798.02 | 587 | 572 | 112.4 |
B | 5 | 31 | 312745 | 2777.3 | 587 | 572 | 112.4 |
C | 0 | 10 | 376911 | 2619.56 | 615 | 622 | 143.6 |
C | 15 | 214 | 214496 | 1488.9 | 615 | 622 | 143.6 |
C | 0 | 207 | 29344 | 199.95 | 615 | 622 | 143.6 |
D | 7 | 80 | 3418307 | 25326.29 | 541 | 526 | 134.9 |
D | 1 | 47 | 299293 | 2213.91 | 541 | 526 | 134.9 |
D | 13 | 249 | 215656 | 1594.15 | 541 | 526 | 134.9 |
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 |
|
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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 | |