Observation information
- date-obs: 2018-12-21
- time-obs: 12:21:29.469600000
- date-end: 2018-12-21
- time-end: 14:40:53.469200000
- obs_id: A05_196T01_9000002584
- exposure: 2877.69577459
- sourceid: NGC 2818
- observer: nkrao
- ra_pnt: 139.0062
- dec_pnt: -36.62706
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_196T01_9000002584_17472cztM0_level2.evt
| modeM0/AS1A05_196T01_9000002584_17472cztM0_level2_quad_clean.evt
|
| Size (bytes) | 703,909,440 | 68,025,600 |
| Size | 671.3 MB
| 64.9 MB
|
| Events in quadrant A | 3,960,335 | 414,465 |
| Events in quadrant B | 3,649,295 | 419,529 |
| Events in quadrant C | 3,543,072 | 401,451 |
| Events in quadrant D | 9,710,005 | 354,859 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15888 | 2 |
| B | 0 | 14856 | 2 |
| C | 0 | 14569 | 2 |
| D | 0 | 33508 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6728 | 327 | 4.860285% |
| B | 6728 | 166 | 2.467301% |
| C | 6728 | 171 | 2.541617% |
| D | 6727 | 2309 | 34.324365% |
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 | 7918 | 6728 | 106 | 106 | 1.34% | 1.58% |  |
| B | 7918 | 6728 | 8 | 8 | 0.10% | 0.12% |  |
| C | 7918 | 6729 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7917 | 6728 | 2056 | 2056 | 25.97% | 30.56% |  |
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 | 15 | 174 | 282736 | 1573.66 | 896 | 877 | 179.1 |
| A | 0 | 23 | 219878 | 1222.71 | 896 | 877 | 179.1 |
| A | 0 | 226 | 24197 | 130.2 | 896 | 877 | 179.1 |
| B | 0 | 197 | 61760 | 361.3 | 897 | 875 | 168.5 |
| B | 0 | 189 | 30693 | 176.94 | 897 | 875 | 168.5 |
| B | 12 | 17 | 20563 | 116.83 | 897 | 875 | 168.5 |
| C | 14 | 238 | 136769 | 683.52 | 861 | 868 | 198.8 |
| C | 5 | 218 | 34486 | 169.08 | 861 | 868 | 198.8 |
| C | 5 | 37 | 6821 | 29.94 | 861 | 868 | 198.8 |
| D | 11 | 176 | 4996178 | 26535.82 | 770 | 748 | 188.3 |
| D | 7 | 238 | 1205408 | 6399.18 | 770 | 748 | 188.3 |
| D | 10 | 70 | 421502 | 2235.05 | 770 | 748 | 188.3 |
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 |  |