Observation information
- date-obs: 2022-04-16
- time-obs: 06:37:47.803900000
- date-end: 2022-04-16
- time-end: 08:33:00.799800000
- obs_id: T05_022T01_9000005070
- exposure: 2494.43987434
- 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_35409cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35409cztM0_level2_quad_clean.evt
|
Size (bytes) | 649,664,640 | 54,561,600 |
Size | 619.6 MB
| 52.0 MB
|
Events in quadrant A | 2,433,963 | 352,336 |
Events in quadrant B | 7,969,361 | 328,774 |
Events in quadrant C | 3,142,028 | 349,949 |
Events in quadrant D | 5,797,721 | 275,662 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10141 | 2 |
B | 0 | 27088 | 1 |
C | 0 | 12239 | 1 |
D | 0 | 20667 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 100 | 0 |
B | 0 | 100 | 0 |
C | 0 | 100 | 0 |
D | 0 | 100 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 20 | 0 |
B | 0 | 20 | 0 |
C | 0 | 20 | 0 |
D | 0 | 20 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4911 | 7 | 0.142537% |
B | 4911 | 2195 | 44.695581% |
C | 4911 | 94 | 1.914070% |
D | 4911 | 1214 | 24.720016% |
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 | 6913 | 4912 | 1 | 1 | 0.01% | 0.02% | |
B | 6913 | 4912 | 1871 | 1871 | 27.06% | 38.09% | |
C | 6913 | 4912 | 79 | 79 | 1.14% | 1.61% | |
D | 6913 | 4912 | 1124 | 1124 | 16.26% | 22.88% | |
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 | 98042 | 820.55 | 589 | 580 | 118.8 |
A | 9 | 143 | 24634 | 202.52 | 589 | 580 | 118.8 |
A | 7 | 16 | 22815 | 187.2 | 589 | 580 | 118.8 |
B | 4 | 251 | 2135124 | 23738.21 | 464 | 451 | 89.9 |
B | 5 | 236 | 987941 | 10981.19 | 464 | 451 | 89.9 |
B | 5 | 31 | 918986 | 10214.39 | 464 | 451 | 89.9 |
C | 0 | 10 | 570755 | 4290.5 | 571 | 575 | 132.9 |
C | 15 | 214 | 203430 | 1526.45 | 571 | 575 | 132.9 |
C | 0 | 207 | 96920 | 724.98 | 571 | 575 | 132.9 |
D | 7 | 80 | 3177901 | 26497.32 | 482 | 466 | 119.9 |
D | 8 | 195 | 254228 | 2116.18 | 482 | 466 | 119.9 |
D | 13 | 249 | 170704 | 1419.65 | 482 | 466 | 119.9 |
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 | |