Observation information
- date-obs: 2022-02-21
- time-obs: 08:38:45.524700000
- date-end: 2022-02-21
- time-end: 10:43:40.527300000
- obs_id: A11_046T09_9000004952
- exposure: 2020.39308694
- 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_34611cztM0_level2.evt
| modeM0/AS1A11_046T09_9000004952_34611cztM0_level2_quad_clean.evt
|
Size (bytes) | 453,965,760 | 50,644,800 |
Size | 432.9 MB
| 48.3 MB
|
Events in quadrant A | 2,690,320 | 302,585 |
Events in quadrant B | 3,359,171 | 300,271 |
Events in quadrant C | 3,064,714 | 292,811 |
Events in quadrant D | 4,287,730 | 279,247 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 104 | 0 |
B | 0 | 104 | 0 |
C | 0 | 104 | 0 |
D | 0 | 104 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23 | 0 |
B | 0 | 23 | 0 |
C | 0 | 23 | 0 |
D | 0 | 24 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 10820 | 3 |
B | 0 | 12955 | 2 |
C | 0 | 11893 | 2 |
D | 0 | 16216 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5110 | 20 | 0.391389% |
B | 5110 | 194 | 3.796477% |
C | 5110 | 66 | 1.291585% |
D | 5110 | 110 | 2.152642% |
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 | 7233 | 5111 | 3 | 3 | 0.04% | 0.06% | |
B | 7233 | 5111 | 126 | 126 | 1.74% | 2.47% | |
C | 7233 | 5111 | 46 | 46 | 0.64% | 0.90% | |
D | 7233 | 5111 | 85 | 85 | 1.18% | 1.66% | |
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 | 43264 | 318.59 | 677 | 668 | 133.7 |
A | 15 | 169 | 17471 | 125.68 | 677 | 668 | 133.7 |
A | 9 | 143 | 9805 | 68.34 | 677 | 668 | 133.7 |
B | 5 | 172 | 601113 | 4894.92 | 659 | 644 | 122.7 |
B | 4 | 232 | 43177 | 346.72 | 659 | 644 | 122.7 |
B | 10 | 245 | 33043 | 264.11 | 659 | 644 | 122.7 |
C | 15 | 214 | 214715 | 1444.7 | 642 | 648 | 148.2 |
C | 0 | 207 | 161849 | 1087.92 | 642 | 648 | 148.2 |
C | 0 | 10 | 128987 | 866.14 | 642 | 648 | 148.2 |
D | 8 | 195 | 1368325 | 8630.71 | 649 | 633 | 158.5 |
D | 12 | 235 | 60512 | 377.86 | 649 | 633 | 158.5 |
D | 7 | 223 | 53392 | 332.93 | 649 | 633 | 158.5 |
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 | |