Observation information
- date-obs: 2015-12-03
- time-obs: 20:54:38.661500000
- date-end: 2015-12-03
- time-end: 23:00:53.667200000
- obs_id: P01_998T01_9000000188
- exposure: 7297.91167212
- 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_00989cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00989cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,275,272,640 | 109,889,280 |
| Size | 1.2 GB
| 104.8 MB
|
| Events in quadrant A | 8,681,190 | 727,020 |
| Events in quadrant B | 9,500,421 | 726,035 |
| Events in quadrant C | 9,022,668 | 710,993 |
| Events in quadrant D | 10,924,115 | 644,666 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31041 | 0 |
| B | 0 | 33479 | 0 |
| C | 0 | 32052 | 0 |
| D | 0 | 37924 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7455 | 5 | 0.067069% |
| B | 7455 | 38 | 0.509725% |
| C | 7455 | 11 | 0.147552% |
| D | 7455 | 910 | 12.206573% |
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 | 7575 | 7457 | 214 | 214 | 2.83% | 2.87% |  |
| B | 7575 | 7457 | 455 | 455 | 6.01% | 6.10% |  |
| C | 7575 | 7457 | 278 | 278 | 3.67% | 3.73% |  |
| D | 7575 | 7457 | 1387 | 1387 | 18.31% | 18.60% |  |
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 | 12 | 189 | 7647 | 9.84 | 2260 | 2275 | 545.7 |
| A | 0 | 253 | 7274 | 9.16 | 2260 | 2275 | 545.7 |
| A | 3 | 111 | 7133 | 8.9 | 2260 | 2275 | 545.7 |
| B | 8 | 234 | 90136 | 157.26 | 2379 | 2385 | 558.0 |
| B | 0 | 220 | 82507 | 143.59 | 2379 | 2385 | 558.0 |
| B | 8 | 38 | 81893 | 142.49 | 2379 | 2385 | 558.0 |
| C | 15 | 241 | 348753 | 566.25 | 2198 | 2275 | 611.9 |
| C | 3 | 79 | 35785 | 54.77 | 2198 | 2275 | 611.9 |
| C | 3 | 111 | 34584 | 52.8 | 2198 | 2275 | 611.9 |
| D | 12 | 188 | 2863583 | 4699.73 | 1972 | 2039 | 608.9 |
| D | 1 | 4 | 468815 | 766.62 | 1972 | 2039 | 608.9 |
| D | 13 | 85 | 85744 | 137.48 | 1972 | 2039 | 608.9 |
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 |  |