Observation information
- date-obs: 2022-04-16
- time-obs: 01:10:22.816200000
- date-end: 2022-04-16
- time-end: 03:24:38.810900000
- obs_id: T05_022T01_9000005070
- exposure: 3434.59170268
- 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_35406cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35406cztM0_level2_quad_clean.evt
|
Size (bytes) | 627,353,280 | 78,546,240 |
Size | 598.3 MB
| 74.9 MB
|
Events in quadrant A | 2,790,046 | 517,306 |
Events in quadrant B | 7,743,704 | 497,887 |
Events in quadrant C | 3,183,988 | 520,764 |
Events in quadrant D | 4,919,643 | 467,308 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11427 | 3 |
B | 0 | 26755 | 2 |
C | 0 | 12356 | 2 |
D | 0 | 18256 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 110 | 0 |
B | 0 | 110 | 0 |
C | 0 | 110 | 0 |
D | 0 | 110 | 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 | 5350 | 8 | 0.149533% |
B | 5350 | 1793 | 33.514019% |
C | 5350 | 131 | 2.448598% |
D | 5350 | 516 | 9.644860% |
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 | 7382 | 5351 | 1 | 1 | 0.01% | 0.02% | |
B | 7382 | 5351 | 1482 | 1482 | 20.08% | 27.70% | |
C | 7382 | 5351 | 92 | 92 | 1.25% | 1.72% | |
D | 7382 | 5351 | 515 | 515 | 6.98% | 9.62% | |
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 | 126018 | 949.23 | 669 | 659 | 132.1 |
A | 9 | 143 | 46677 | 348.45 | 669 | 659 | 132.1 |
A | 13 | 6 | 15615 | 113.25 | 669 | 659 | 132.1 |
B | 4 | 251 | 4749653 | 44561.95 | 567 | 553 | 106.6 |
B | 5 | 236 | 258258 | 2418.11 | 567 | 553 | 106.6 |
B | 0 | 219 | 167476 | 1566.28 | 567 | 553 | 106.6 |
C | 0 | 10 | 366685 | 2399.34 | 662 | 669 | 152.5 |
C | 15 | 214 | 219707 | 1435.86 | 662 | 669 | 152.5 |
C | 3 | 233 | 8679 | 52.51 | 662 | 669 | 152.5 |
D | 7 | 80 | 1404365 | 9187.08 | 633 | 617 | 152.8 |
D | 8 | 195 | 200248 | 1306.52 | 633 | 617 | 152.8 |
D | 1 | 47 | 185742 | 1211.58 | 633 | 617 | 152.8 |
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 |
|
|
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 | |