Observation information
- date-obs: 2015-12-02
- time-obs: 18-39-12.000006127
- date-end: 2015-12-02
- time-end: 20-50-34.000006147
- obs_id: P01_998T01_9000000188
- exposure: 7149.84396975
- 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_00973cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00973cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,199,603,520 | 109,278,720 |
| Size | 1.1 GB
| 104.2 MB
|
| Events in quadrant A | 8,569,565 | 717,846 |
| Events in quadrant B | 9,470,232 | 710,940 |
| Events in quadrant C | 8,883,782 | 700,416 |
| Events in quadrant D | 8,930,177 | 679,084 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30605 | 0 |
| B | 0 | 33227 | 0 |
| C | 0 | 31515 | 0 |
| D | 0 | 31711 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7207 | 6 | 0.083252% |
| B | 7207 | 72 | 0.999029% |
| C | 7207 | 8 | 0.111003% |
| D | 7206 | 250 | 3.469331% |
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 | 7582 | 7208 | 254 | 254 | 3.35% | 3.52% |  |
| B | 7582 | 7208 | 516 | 516 | 6.81% | 7.16% |  |
| C | 7582 | 7208 | 322 | 322 | 4.25% | 4.47% |  |
| D | 7581 | 7207 | 582 | 582 | 7.68% | 8.08% |  |
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 | 11 | 242 | 17649 | 28.9 | 2222 | 2236 | 533.4 |
| A | 12 | 189 | 10142 | 14.82 | 2222 | 2236 | 533.4 |
| A | 12 | 243 | 8843 | 12.39 | 2222 | 2236 | 533.4 |
| B | 0 | 220 | 104987 | 186.92 | 2327 | 2334 | 549.2 |
| B | 15 | 154 | 88585 | 157.06 | 2327 | 2334 | 549.2 |
| B | 15 | 22 | 85881 | 152.13 | 2327 | 2334 | 549.2 |
| C | 15 | 241 | 346719 | 573.85 | 2153 | 2231 | 600.3 |
| C | 10 | 34 | 67306 | 108.4 | 2153 | 2231 | 600.3 |
| C | 3 | 111 | 31690 | 49.07 | 2153 | 2231 | 600.3 |
| D | 12 | 188 | 740423 | 1180.56 | 2039 | 2110 | 625.4 |
| D | 1 | 4 | 404973 | 644.18 | 2039 | 2110 | 625.4 |
| D | 13 | 73 | 67214 | 104.1 | 2039 | 2110 | 625.4 |
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 |
 |
 |
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 |  |