Observation information
- date-obs: 2018-01-13
- time-obs: 14:38:00.900800000
- date-end: 2018-01-13
- time-end: 17:27:04.096700000
- obs_id: A04_023T01_9000001842
- exposure: 5583.25617752
- sourceid: NGC3801
- observer: hota
- ra_pnt: 175.0704
- dec_pnt: 17.72791
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_023T01_9000001842_12412cztM0_level2.evt
| modeM0/AS1A04_023T01_9000001842_12412cztM0_level2_quad_clean.evt
|
| Size (bytes) | 670,245,120 | 106,951,680 |
| Size | 639.2 MB
| 102.0 MB
|
| Events in quadrant A | 4,785,240 | 656,799 |
| Events in quadrant B | 5,613,657 | 653,898 |
| Events in quadrant C | 4,129,389 | 660,821 |
| Events in quadrant D | 5,150,326 | 632,903 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 188 | 0 |
| B | 0 | 188 | 0 |
| C | 0 | 188 | 0 |
| D | 0 | 188 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20129 | 2 |
| B | 0 | 22712 | 2 |
| C | 0 | 18686 | 2 |
| D | 0 | 21769 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 9140 | 147 | 1.608315% |
| B | 9140 | 469 | 5.131291% |
| C | 9140 | 77 | 0.842451% |
| D | 9140 | 234 | 2.560175% |
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 | 10146 | 9142 | 7 | 7 | 0.07% | 0.08% |  |
| B | 10146 | 9141 | 258 | 258 | 2.54% | 2.82% |  |
| C | 10146 | 9142 | 0 | 0 | 0.00% | 0.00% |  |
| D | 10146 | 9142 | 117 | 117 | 1.15% | 1.28% |  |
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 | 1 | 162 | 151879 | 685.94 | 1077 | 1055 | 219.9 |
| A | 13 | 251 | 111569 | 502.61 | 1077 | 1055 | 219.9 |
| A | 12 | 189 | 89596 | 402.68 | 1077 | 1055 | 219.9 |
| B | 4 | 239 | 710500 | 3441.98 | 1062 | 1034 | 206.1 |
| B | 3 | 64 | 459958 | 2226.47 | 1062 | 1034 | 206.1 |
| B | 3 | 209 | 81568 | 390.71 | 1062 | 1034 | 206.1 |
| C | 14 | 234 | 13838 | 51.82 | 1052 | 1056 | 246.7 |
| C | 8 | 128 | 9775 | 35.34 | 1052 | 1056 | 246.7 |
| C | 13 | 61 | 7670 | 26.81 | 1052 | 1056 | 246.7 |
| D | 1 | 52 | 566167 | 2228.78 | 1043 | 1015 | 253.6 |
| D | 2 | 14 | 133315 | 521.75 | 1043 | 1015 | 253.6 |
| D | 10 | 157 | 116639 | 455.98 | 1043 | 1015 | 253.6 |
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 |
 |
 |
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 |  |