Observation information
- date-obs: 2022-04-15
- time-obs: 23:25:22.819900000
- date-end: 2022-04-16
- time-end: 01:41:03.814800000
- obs_id: T05_022T01_9000005070
- exposure: 3838.69508736
- 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_35405cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35405cztM0_level2_quad_clean.evt
|
Size (bytes) | 593,504,640 | 83,966,400 |
Size | 566.0 MB
| 80.1 MB
|
Events in quadrant A | 2,754,912 | 564,644 |
Events in quadrant B | 3,889,578 | 573,412 |
Events in quadrant C | 3,222,448 | 570,928 |
Events in quadrant D | 7,735,369 | 448,753 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11507 | 3 |
B | 0 | 15159 | 2 |
C | 0 | 12621 | 2 |
D | 0 | 26688 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 112 | 0 |
B | 0 | 112 | 0 |
C | 0 | 112 | 0 |
D | 0 | 112 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 26 | 0 |
B | 0 | 26 | 0 |
C | 0 | 26 | 0 |
D | 0 | 27 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5494 | 13 | 0.236622% |
B | 5494 | 272 | 4.950855% |
C | 5494 | 114 | 2.074991% |
D | 5494 | 1839 | 33.472880% |
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 | 7436 | 5495 | 1 | 1 | 0.01% | 0.02% | |
B | 7436 | 5495 | 207 | 207 | 2.78% | 3.77% | |
C | 7436 | 5495 | 80 | 80 | 1.08% | 1.46% | |
D | 7436 | 5495 | 1510 | 1510 | 20.31% | 27.48% | |
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 | 126663 | 932.12 | 671 | 659 | 135.2 |
A | 9 | 143 | 21067 | 150.97 | 671 | 659 | 135.2 |
A | 13 | 6 | 13908 | 98.01 | 671 | 659 | 135.2 |
B | 4 | 251 | 604023 | 4796.61 | 663 | 645 | 125.8 |
B | 5 | 172 | 257173 | 2039.29 | 663 | 645 | 125.8 |
B | 5 | 236 | 164276 | 1300.8 | 663 | 645 | 125.8 |
C | 0 | 10 | 374932 | 2435.15 | 666 | 671 | 153.7 |
C | 15 | 214 | 226205 | 1467.45 | 666 | 671 | 153.7 |
C | 14 | 67 | 10513 | 64.04 | 666 | 671 | 153.7 |
D | 7 | 80 | 4686690 | 35131.83 | 548 | 534 | 133.4 |
D | 1 | 47 | 435737 | 3262.69 | 548 | 534 | 133.4 |
D | 13 | 249 | 188724 | 1410.85 | 548 | 534 | 133.4 |
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 | |