Observation information
- date-obs: 2022-04-16
- time-obs: 20:20:22.774700000
- date-end: 2022-04-16
- time-end: 22:29:01.768800000
- obs_id: T05_022T01_9000005070
- exposure: 4240.24492314
- 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_35419cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35419cztM0_level2_quad_clean.evt
|
Size (bytes) | 571,887,360 | 84,386,880 |
Size | 545.4 MB
| 80.5 MB
|
Events in quadrant A | 2,572,408 | 571,650 |
Events in quadrant B | 7,955,298 | 515,441 |
Events in quadrant C | 3,013,695 | 563,242 |
Events in quadrant D | 3,418,284 | 532,583 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11069 | 2 |
B | 0 | 27342 | 2 |
C | 0 | 12019 | 2 |
D | 0 | 13592 | 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 | 24 | 0 |
B | 0 | 24 | 0 |
C | 0 | 24 | 0 |
D | 0 | 25 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5311 | 5 | 0.094144% |
B | 5311 | 2084 | 39.239315% |
C | 5311 | 138 | 2.598381% |
D | 5311 | 191 | 3.596310% |
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 | 7075 | 5312 | 1 | 1 | 0.01% | 0.02% | |
B | 7075 | 5312 | 1776 | 1776 | 25.10% | 33.43% | |
C | 7075 | 5312 | 101 | 101 | 1.43% | 1.90% | |
D | 7075 | 5312 | 146 | 146 | 2.06% | 2.75% | |
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 | 126534 | 990.08 | 626 | 614 | 127.2 |
A | 13 | 6 | 17390 | 131.91 | 626 | 614 | 127.2 |
A | 9 | 143 | 8149 | 59.25 | 626 | 614 | 127.2 |
B | 4 | 251 | 1538720 | 15362.86 | 524 | 511 | 100.1 |
B | 5 | 31 | 1104765 | 11028.73 | 524 | 511 | 100.1 |
B | 5 | 15 | 1097194 | 10953.12 | 524 | 511 | 100.1 |
C | 0 | 10 | 394530 | 2731.45 | 613 | 618 | 144.2 |
C | 15 | 214 | 215973 | 1493.31 | 613 | 618 | 144.2 |
C | 0 | 207 | 8846 | 57.05 | 613 | 618 | 144.2 |
D | 7 | 80 | 268705 | 1798.23 | 606 | 592 | 149.1 |
D | 13 | 249 | 215444 | 1441.01 | 606 | 592 | 149.1 |
D | 2 | 153 | 163667 | 1093.74 | 606 | 592 | 149.1 |
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 | |