Observation information
- date-obs: 2022-04-15
- time-obs: 18:18:42.828600000
- date-end: 2022-04-15
- time-end: 20:23:49.824900000
- obs_id: T05_022T01_9000005070
- exposure: 4136.36323541
- 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_35401cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35401cztM0_level2_quad_clean.evt
|
Size (bytes) | 745,349,760 | 78,920,640 |
Size | 710.8 MB
| 75.3 MB
|
Events in quadrant A | 2,728,299 | 572,517 |
Events in quadrant B | 9,280,597 | 437,718 |
Events in quadrant C | 3,655,648 | 554,418 |
Events in quadrant D | 6,529,579 | 431,221 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11766 | 3 |
B | 0 | 31442 | 2 |
C | 0 | 14294 | 2 |
D | 0 | 23081 | 2 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 116 | 0 |
B | 0 | 116 | 0 |
C | 0 | 116 | 0 |
D | 0 | 116 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 18 | 0 |
B | 0 | 18 | 0 |
C | 0 | 18 | 0 |
D | 0 | 19 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5602 | 5 | 0.089254% |
B | 5602 | 2712 | 48.411282% |
C | 5602 | 235 | 4.194930% |
D | 5602 | 1522 | 27.168868% |
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 | 7183 | 5603 | 0 | 0 | 0.00% | 0.00% | |
B | 7183 | 5603 | 2297 | 2297 | 31.98% | 41.00% | |
C | 7183 | 5603 | 169 | 169 | 2.35% | 3.02% | |
D | 7183 | 5602 | 1165 | 1165 | 16.22% | 20.80% | |
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 | 128987 | 967.36 | 655 | 641 | 132.7 |
A | 9 | 143 | 44406 | 329.86 | 655 | 641 | 132.7 |
A | 13 | 6 | 17503 | 127.09 | 655 | 641 | 132.7 |
B | 4 | 251 | 3604678 | 36546.75 | 502 | 488 | 98.6 |
B | 5 | 14 | 888797 | 9007.52 | 502 | 488 | 98.6 |
B | 5 | 31 | 847676 | 8590.55 | 502 | 488 | 98.6 |
C | 0 | 207 | 554333 | 3766.41 | 627 | 633 | 147.0 |
C | 0 | 10 | 332210 | 2255.47 | 627 | 633 | 147.0 |
C | 15 | 214 | 228387 | 1549.24 | 627 | 633 | 147.0 |
D | 7 | 80 | 3501291 | 26138.53 | 540 | 523 | 133.9 |
D | 13 | 249 | 283870 | 2115.61 | 540 | 523 | 133.9 |
D | 8 | 195 | 138424 | 1029.64 | 540 | 523 | 133.9 |
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 |
|
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Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
|
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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 | |