Observation information
- date-obs: 2015-12-02
- time-obs: 01-26-44.000006354
- date-end: 2015-12-02
- time-end: 05-14-41.000006271
- obs_id: P01_998T01_9000000188
- exposure: 12108.8470523
- sourceid: NGC188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1P01_998T01_9000000188_00963cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00963cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,486,332,800 | 178,735,680 |
| Size | 2.3 GB
| 170.5 MB
|
| Events in quadrant A | 14,831,943 | 1,203,826 |
| Events in quadrant B | 15,649,218 | 1,204,788 |
| Events in quadrant C | 16,627,331 | 1,175,767 |
| Events in quadrant D | 27,367,675 | 961,192 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 52980 | 0 |
| B | 0 | 55332 | 0 |
| C | 0 | 58204 | 0 |
| D | 0 | 90722 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 254 | 0 |
| B | 0 | 254 | 0 |
| C | 0 | 254 | 0 |
| D | 0 | 254 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 12531 | 14 | 0.111723% |
| B | 12531 | 35 | 0.279307% |
| C | 12532 | 8 | 0.063837% |
| D | 12532 | 4204 | 33.546122% |
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 | 13676 | 12533 | 285 | 285 | 2.08% | 2.27% |  |
| B | 13676 | 12533 | 385 | 385 | 2.82% | 3.07% |  |
| C | 13677 | 12534 | 479 | 479 | 3.50% | 3.82% |  |
| D | 13677 | 12534 | 6534 | 6534 | 47.77% | 52.13% |  |
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 | 14 | 170 | 94872 | 98.53 | 3831 | 3864 | 923.7 |
| A | 0 | 253 | 27790 | 25.9 | 3831 | 3864 | 923.7 |
| A | 12 | 189 | 20297 | 17.79 | 3831 | 3864 | 923.7 |
| B | 8 | 234 | 156364 | 162.69 | 3990 | 4003 | 936.5 |
| B | 15 | 22 | 107887 | 110.93 | 3990 | 4003 | 936.5 |
| B | 5 | 249 | 82659 | 83.99 | 3990 | 4003 | 936.5 |
| C | 10 | 34 | 1733955 | 1717.39 | 3604 | 3727 | 1007.5 |
| C | 15 | 241 | 584888 | 576.85 | 3604 | 3727 | 1007.5 |
| C | 10 | 207 | 67060 | 62.86 | 3604 | 3727 | 1007.5 |
| D | 12 | 188 | 14854183 | 16325.28 | 3105 | 3183 | 909.7 |
| D | 11 | 131 | 576032 | 629.72 | 3105 | 3183 | 909.7 |
| D | 1 | 4 | 314145 | 341.83 | 3105 | 3183 | 909.7 |
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 |  |