Observation information
- date-obs: 2022-04-15
- time-obs: 17:36:05.916200000
- date-end: 2022-04-15
- time-end: 18:41:52.827900000
- obs_id: T05_022T01_9000005070
- exposure: 1570.30589665
- 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_35400cztM0_level2.evt
| modeM0/AS1T05_022T01_9000005070_35400cztM0_level2_quad_clean.evt
|
Size (bytes) | 381,372,480 | 31,697,280 |
Size | 363.7 MB
| 30.2 MB
|
Events in quadrant A | 1,310,296 | 228,132 |
Events in quadrant B | 4,967,565 | 163,055 |
Events in quadrant C | 1,553,369 | 226,224 |
Events in quadrant D | 3,549,328 | 162,866 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 5341 | 2 |
B | 0 | 16454 | 1 |
C | 0 | 6017 | 1 |
D | 0 | 12260 | 1 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 50 | 0 |
B | 0 | 50 | 0 |
C | 0 | 50 | 0 |
D | 0 | 50 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 15 | 0 |
B | 0 | 15 | 0 |
C | 0 | 15 | 0 |
D | 0 | 15 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 2484 | 5 | 0.201288% |
B | 2484 | 1648 | 66.344605% |
C | 2484 | 81 | 3.260870% |
D | 2484 | 994 | 40.016103% |
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 | 3947 | 2485 | 0 | 0 | 0.00% | 0.00% | |
B | 3947 | 2485 | 1355 | 1355 | 34.33% | 54.53% | |
C | 3947 | 2485 | 48 | 48 | 1.22% | 1.93% | |
D | 3947 | 2485 | 721 | 721 | 18.27% | 29.01% | |
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 | 63161 | 973.77 | 309 | 303 | 64.6 |
A | 9 | 143 | 40998 | 630.43 | 309 | 303 | 64.6 |
A | 13 | 6 | 9206 | 137.92 | 309 | 303 | 64.6 |
B | 4 | 251 | 1816050 | 43567.06 | 204 | 199 | 41.7 |
B | 5 | 14 | 759468 | 18216.87 | 204 | 199 | 41.7 |
B | 5 | 31 | 725708 | 17406.88 | 204 | 199 | 41.7 |
C | 0 | 10 | 207749 | 2965.86 | 294 | 296 | 69.9 |
C | 15 | 214 | 102580 | 1462.31 | 294 | 296 | 69.9 |
C | 3 | 233 | 62432 | 888.33 | 294 | 296 | 69.9 |
D | 7 | 80 | 2159385 | 36349.81 | 234 | 226 | 59.4 |
D | 2 | 250 | 130121 | 2186.8 | 234 | 226 | 59.4 |
D | 2 | 152 | 97284 | 1633.99 | 234 | 226 | 59.4 |
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 | |