Observation information
- date-obs: 2022-04-16
- time-obs: 02:52:02.812400000
- date-end: 2022-04-16
- time-end: 05:03:28.807900000
- obs_id: T05_022T01_9000005070
- exposure: 2659.6490778
- 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_35407cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35407cztM0_level2_quad_clean.evt
|
Size (bytes) | 638,449,920 | 62,438,400 |
Size | 608.9 MB
| 59.5 MB
|
Events in quadrant A | 2,562,924 | 407,573 |
Events in quadrant B | 8,404,014 | 349,125 |
Events in quadrant C | 3,028,226 | 407,283 |
Events in quadrant D | 5,008,611 | 381,402 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10416 | 3 |
B | 0 | 28360 | 2 |
C | 0 | 11730 | 2 |
D | 0 | 18339 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 98 | 0 |
B | 0 | 98 | 0 |
C | 0 | 98 | 0 |
D | 0 | 98 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30 | 0 |
B | 0 | 30 | 0 |
C | 0 | 30 | 0 |
D | 0 | 31 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 4919 | 7 | 0.142305% |
B | 4919 | 2257 | 45.883310% |
C | 4919 | 121 | 2.459850% |
D | 4919 | 584 | 11.872332% |
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 | 7042 | 4920 | 1 | 1 | 0.01% | 0.02% | |
B | 7042 | 4920 | 1881 | 1881 | 26.71% | 38.23% | |
C | 7042 | 4920 | 95 | 95 | 1.35% | 1.93% | |
D | 7042 | 4920 | 458 | 458 | 6.50% | 9.31% | |
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 | 125314 | 1016.29 | 619 | 608 | 122.7 |
A | 9 | 143 | 26524 | 211.2 | 619 | 608 | 122.7 |
A | 13 | 6 | 9873 | 75.5 | 619 | 608 | 122.7 |
B | 4 | 251 | 5654240 | 58787.55 | 511 | 498 | 96.2 |
B | 5 | 236 | 239266 | 2482.71 | 511 | 498 | 96.2 |
B | 5 | 172 | 153148 | 1587.25 | 511 | 498 | 96.2 |
C | 0 | 10 | 427882 | 3052.24 | 608 | 613 | 140.0 |
C | 15 | 214 | 202636 | 1443.17 | 608 | 613 | 140.0 |
C | 3 | 233 | 23240 | 161.64 | 608 | 613 | 140.0 |
D | 7 | 80 | 1581331 | 11293.51 | 580 | 565 | 140.0 |
D | 8 | 195 | 539307 | 3848.95 | 580 | 565 | 140.0 |
D | 12 | 233 | 189510 | 1349.88 | 580 | 565 | 140.0 |
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 |
|
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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 | |