Observation information
- date-obs: 2022-02-21
- time-obs: 13:27:05.532800000
- date-end: 2022-02-21
- time-end: 15:54:10.538300000
- obs_id: A11_046T09_9000004952
- exposure: 3813.12715581
- 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_34614cztM0_level2.evt
| modeM0/AS1A11_046T09_9000004952_34614cztM0_level2_quad_clean.evt
|
Size (bytes) | 455,163,840 | 76,942,080 |
Size | 434.1 MB
| 73.4 MB
|
Events in quadrant A | 2,624,162 | 498,887 |
Events in quadrant B | 3,221,059 | 490,189 |
Events in quadrant C | 2,914,554 | 494,819 |
Events in quadrant D | 4,653,436 | 462,839 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 112 | 0 |
B | 0 | 112 | 0 |
C | 0 | 112 | 0 |
D | 0 | 112 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 33 | 0 |
B | 0 | 33 | 0 |
C | 0 | 33 | 0 |
D | 0 | 34 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11352 | 3 |
B | 0 | 12981 | 2 |
C | 0 | 11741 | 2 |
D | 0 | 17402 | 2 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 5471 | 13 | 0.237617% |
B | 5471 | 219 | 4.002925% |
C | 5471 | 58 | 1.060135% |
D | 5471 | 252 | 4.606105% |
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 | 7053 | 5472 | 7 | 7 | 0.10% | 0.13% | |
B | 7053 | 5472 | 151 | 151 | 2.14% | 2.76% | |
C | 7053 | 5472 | 33 | 33 | 0.47% | 0.60% | |
D | 7053 | 5472 | 221 | 221 | 3.13% | 4.04% | |
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 | 62651 | 477.65 | 643 | 630 | 129.8 |
A | 10 | 83 | 45950 | 349.03 | 643 | 630 | 129.8 |
A | 13 | 6 | 14958 | 110.35 | 643 | 630 | 129.8 |
B | 5 | 172 | 663556 | 5469.1 | 632 | 618 | 121.2 |
B | 12 | 111 | 14852 | 117.43 | 632 | 618 | 121.2 |
B | 5 | 200 | 14837 | 117.3 | 632 | 618 | 121.2 |
C | 15 | 214 | 228550 | 1569.54 | 622 | 625 | 145.2 |
C | 0 | 10 | 154773 | 1061.5 | 622 | 625 | 145.2 |
C | 14 | 67 | 64155 | 437.48 | 622 | 625 | 145.2 |
D | 8 | 195 | 1161322 | 7667.54 | 616 | 600 | 151.4 |
D | 3 | 13 | 607800 | 4011.07 | 616 | 600 | 151.4 |
D | 13 | 249 | 129569 | 851.95 | 616 | 600 | 151.4 |
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 | |