Observation information
- date-obs: 2015-12-01
- time-obs: 02-48-40.000006456
- date-end: 2015-12-01
- time-end: 04-51-19.000006451
- obs_id: P01_998T01_9000000188
- exposure: 6753.71526186
- 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_00948cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00948cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,073,983,680 | 100,287,360 |
| Size | 1.0 GB
| 95.6 MB
|
| Events in quadrant A | 7,958,097 | 649,793 |
| Events in quadrant B | 8,537,134 | 649,160 |
| Events in quadrant C | 8,081,660 | 638,464 |
| Events in quadrant D | 7,498,194 | 626,336 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28497 | 0 |
| B | 0 | 30211 | 0 |
| C | 0 | 28831 | 0 |
| D | 0 | 27124 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6794 | 7 | 0.103032% |
| B | 6794 | 39 | 0.574036% |
| C | 6794 | 2 | 0.029438% |
| D | 6794 | 28 | 0.412128% |
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 | 7359 | 6795 | 138 | 138 | 1.88% | 2.03% |  |
| B | 7359 | 6795 | 215 | 215 | 2.92% | 3.16% |  |
| C | 7359 | 6795 | 147 | 147 | 2.00% | 2.16% |  |
| D | 7359 | 6795 | 148 | 148 | 2.01% | 2.18% |  |
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 | 243 | 13519 | 23.12 | 2067 | 2079 | 494.7 |
| A | 14 | 170 | 11320 | 18.68 | 2067 | 2079 | 494.7 |
| A | 11 | 79 | 9369 | 14.74 | 2067 | 2079 | 494.7 |
| B | 5 | 249 | 104046 | 198.49 | 2163 | 2177 | 513.2 |
| B | 12 | 52 | 78175 | 148.08 | 2163 | 2177 | 513.2 |
| B | 8 | 234 | 66731 | 125.78 | 2163 | 2177 | 513.2 |
| C | 15 | 241 | 334320 | 617.95 | 1931 | 1995 | 537.8 |
| C | 10 | 34 | 144480 | 264.95 | 1931 | 1995 | 537.8 |
| C | 3 | 111 | 30418 | 52.85 | 1931 | 1995 | 537.8 |
| D | 1 | 4 | 229863 | 392.93 | 1872 | 1939 | 580.1 |
| D | 2 | 107 | 141514 | 240.62 | 1872 | 1939 | 580.1 |
| D | 12 | 22 | 88839 | 149.81 | 1872 | 1939 | 580.1 |
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 |  |