Observation information
- date-obs: 2022-02-21
- time-obs: 17:08:45.543200000
- date-end: 2022-02-21
- time-end: 17:54:28.544800000
- obs_id: A11_046T09_9000004952
- exposure: 1540.83574386
- sourceid: NGC4656
- observer: samyaday
- ra_pnt: 190.9897
- dec_pnt: 32.17036
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A11_046T09_9000004952_34616cztM0_level2.evt
| modeM0/AS1A11_046T09_9000004952_34616cztM0_level2_quad_clean.evt
|
Size (bytes) | 156,896,640 | 29,194,560 |
Size | 149.6 MB
| 27.8 MB
|
Events in quadrant A | 876,299 | 195,552 |
Events in quadrant B | 1,362,079 | 186,192 |
Events in quadrant C | 945,435 | 191,684 |
Events in quadrant D | 1,447,814 | 183,142 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 34 | 0 |
B | 0 | 34 | 0 |
C | 0 | 34 | 0 |
D | 0 | 34 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10 | 0 |
B | 0 | 10 | 0 |
C | 0 | 10 | 0 |
D | 0 | 11 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3793 | 1 |
B | 0 | 5195 | 1 |
C | 0 | 3820 | 1 |
D | 0 | 5470 | 1 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 1733 | 14 | 0.807848% |
B | 1733 | 174 | 10.040392% |
C | 1733 | 41 | 2.365840% |
D | 1733 | 58 | 3.346797% |
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 | 1733 | 1733 | 11 | 11 | 0.63% | 0.63% | |
B | 1733 | 1733 | 118 | 118 | 6.81% | 6.81% | |
C | 1733 | 1733 | 27 | 27 | 1.56% | 1.56% | |
D | 1733 | 1733 | 50 | 50 | 2.89% | 2.89% | |
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 | 15 | 169 | 80377 | 1928.53 | 196 | 192 | 41.6 |
A | 10 | 83 | 21457 | 511.44 | 196 | 192 | 41.6 |
A | 9 | 143 | 6667 | 155.73 | 196 | 192 | 41.6 |
B | 5 | 172 | 547274 | 14017.45 | 191 | 187 | 39.0 |
B | 4 | 232 | 29970 | 763.1 | 191 | 187 | 39.0 |
B | 5 | 255 | 17005 | 430.91 | 191 | 187 | 39.0 |
C | 0 | 10 | 90979 | 1947.44 | 193 | 195 | 46.6 |
C | 15 | 214 | 74024 | 1583.74 | 193 | 195 | 46.6 |
C | 0 | 207 | 15498 | 328.27 | 193 | 195 | 46.6 |
D | 8 | 195 | 335815 | 6692.11 | 191 | 186 | 50.2 |
D | 10 | 230 | 85337 | 1697.83 | 191 | 186 | 50.2 |
D | 2 | 250 | 60714 | 1206.87 | 191 | 186 | 50.2 |
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 |
|
|
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 | |