Observation information
- date-obs: 2015-11-30
- time-obs: 12-52-42.000006611
- date-end: 2015-11-30
- time-end: 14-55-51.000006555
- obs_id: P01_998T01_9000000188
- exposure: 6074.40051393
- 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_00940cztM0_level2.evt
| modeM0/AS1P01_998T01_9000000188_00940cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,044,596,160 | 100,693,440 |
| Size | 996.2 MB
| 96.0 MB
|
| Events in quadrant A | 7,386,247 | 677,350 |
| Events in quadrant B | 7,738,412 | 671,424 |
| Events in quadrant C | 7,590,579 | 650,355 |
| Events in quadrant D | 8,513,009 | 620,794 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26293 | 0 |
| B | 0 | 27350 | 0 |
| C | 0 | 26922 | 0 |
| D | 0 | 29679 | 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 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6155 | 48 | 0.779854% |
| B | 6155 | 43 | 0.698619% |
| C | 6155 | 45 | 0.731113% |
| D | 6155 | 352 | 5.718928% |
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 | 7390 | 6156 | 195 | 195 | 2.64% | 3.17% |  |
| B | 7390 | 6156 | 242 | 242 | 3.27% | 3.93% |  |
| C | 7390 | 6156 | 236 | 236 | 3.19% | 3.83% |  |
| D | 7390 | 6156 | 704 | 704 | 9.53% | 11.44% |  |
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 | 54310 | 116.64 | 1908 | 1920 | 449.2 |
| A | 12 | 189 | 7437 | 12.28 | 1908 | 1920 | 449.2 |
| A | 13 | 193 | 5891 | 8.84 | 1908 | 1920 | 449.2 |
| B | 5 | 249 | 62603 | 132.63 | 1978 | 1984 | 457.1 |
| B | 4 | 232 | 26379 | 53.37 | 1978 | 1984 | 457.1 |
| B | 15 | 22 | 20950 | 41.5 | 1978 | 1984 | 457.1 |
| C | 15 | 241 | 215041 | 419.65 | 1831 | 1894 | 507.9 |
| C | 9 | 144 | 133445 | 259.0 | 1831 | 1894 | 507.9 |
| C | 12 | 254 | 33664 | 62.55 | 1831 | 1894 | 507.9 |
| D | 12 | 188 | 1468575 | 2735.19 | 1754 | 1815 | 536.3 |
| D | 1 | 4 | 331066 | 613.98 | 1754 | 1815 | 536.3 |
| D | 10 | 157 | 73940 | 134.5 | 1754 | 1815 | 536.3 |
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 |  |