Observation information
- date-obs: 2022-04-16
- time-obs: 04:33:42.808400000
- date-end: 2022-04-16
- time-end: 06:48:54.804000000
- obs_id: T05_022T01_9000005070
- exposure: 2592.19286615
- 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_35408cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35408cztM0_level2_quad_clean.evt
|
Size (bytes) | 704,197,440 | 58,665,600 |
Size | 671.6 MB
| 55.9 MB
|
Events in quadrant A | 2,555,048 | 396,691 |
Events in quadrant B | 10,299,207 | 281,800 |
Events in quadrant C | 3,325,907 | 392,500 |
Events in quadrant D | 4,809,894 | 355,232 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10443 | 3 |
B | 0 | 33948 | 2 |
C | 0 | 12788 | 2 |
D | 0 | 17693 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 102 | 0 |
B | 0 | 102 | 0 |
C | 0 | 102 | 0 |
D | 0 | 102 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 31 | 0 |
B | 0 | 31 | 0 |
C | 0 | 31 | 0 |
D | 0 | 32 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4976 | 10 | 0.200965% |
B | 4976 | 3712 | 74.598071% |
C | 4976 | 123 | 2.471865% |
D | 4976 | 733 | 14.730707% |
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 | 7098 | 4977 | 1 | 1 | 0.01% | 0.02% | |
B | 7098 | 4977 | 3145 | 3145 | 44.31% | 63.19% | |
C | 7098 | 4977 | 98 | 98 | 1.38% | 1.97% | |
D | 7097 | 4976 | 589 | 589 | 8.30% | 11.84% | |
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 | 125157 | 1009.89 | 614 | 603 | 123.3 |
A | 9 | 143 | 18314 | 143.6 | 614 | 603 | 123.3 |
A | 7 | 3 | 18137 | 142.17 | 614 | 603 | 123.3 |
B | 4 | 251 | 7410025 | 97457.56 | 400 | 389 | 76.0 |
B | 5 | 236 | 1000655 | 13156.31 | 400 | 389 | 76.0 |
B | 5 | 172 | 91578 | 1199.39 | 400 | 389 | 76.0 |
C | 0 | 10 | 748546 | 5398.06 | 597 | 603 | 138.6 |
C | 15 | 214 | 208904 | 1503.35 | 597 | 603 | 138.6 |
C | 3 | 233 | 35180 | 249.55 | 597 | 603 | 138.6 |
D | 7 | 80 | 1653343 | 12112.32 | 560 | 545 | 136.5 |
D | 12 | 233 | 357394 | 2615.12 | 560 | 545 | 136.5 |
D | 8 | 195 | 307105 | 2246.59 | 560 | 545 | 136.5 |
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 | |