Observation information
- date-obs: 2017-04-17
- time-obs: 07:23:15.366500000
- date-end: 2017-04-17
- time-end: 09:45:14.364400000
- obs_id: A03_062T01_9000001176
- exposure: 2957.86364658
- sourceid: NGC 4147
- observer: ananta
- ra_pnt: 182.5262
- dec_pnt: 18.54264
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_062T01_9000001176_08396cztM0_level2.evt
| modeM0/AS1A03_062T01_9000001176_08396cztM0_level2_quad_clean.evt
|
| Size (bytes) | 443,635,200 | 66,300,480 |
| Size | 423.1 MB
| 63.2 MB
|
| Events in quadrant A | 3,138,683 | 397,508 |
| Events in quadrant B | 3,473,995 | 401,272 |
| Events in quadrant C | 3,083,262 | 392,249 |
| Events in quadrant D | 3,315,398 | 380,792 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13096 | 3 |
| B | 0 | 14038 | 2 |
| C | 0 | 13081 | 2 |
| D | 0 | 13891 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 23 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 24 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6244 | 102 | 1.633568% |
| B | 6244 | 163 | 2.610506% |
| C | 6244 | 62 | 0.992953% |
| D | 6244 | 64 | 1.024984% |
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 | 7454 | 6245 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7454 | 6244 | 30 | 30 | 0.40% | 0.48% |  |
| C | 7454 | 6244 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7454 | 6245 | 8 | 8 | 0.11% | 0.13% |  |
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 | 0 | 226 | 7724 | 41.86 | 815 | 797 | 165.5 |
| A | 12 | 194 | 7172 | 38.52 | 815 | 797 | 165.5 |
| A | 14 | 111 | 5165 | 26.39 | 815 | 797 | 165.5 |
| B | 4 | 48 | 265194 | 1716.2 | 811 | 795 | 154.1 |
| B | 10 | 252 | 24839 | 156.07 | 811 | 795 | 154.1 |
| B | 0 | 214 | 18846 | 117.17 | 811 | 795 | 154.1 |
| C | 9 | 68 | 31605 | 170.24 | 781 | 787 | 181.0 |
| C | 13 | 61 | 5999 | 28.79 | 781 | 787 | 181.0 |
| C | 1 | 16 | 3840 | 16.86 | 781 | 787 | 181.0 |
| D | 1 | 52 | 139755 | 743.17 | 776 | 760 | 187.0 |
| D | 14 | 34 | 90567 | 480.17 | 776 | 760 | 187.0 |
| D | 2 | 136 | 69833 | 369.31 | 776 | 760 | 187.0 |
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 |  |