Observation information
- date-obs: 2017-05-15
- time-obs: 13:14:55.776800000
- date-end: 2017-05-15
- time-end: 15:30:07.081700000
- obs_id: A03_135T01_9000001226
- exposure: 5199.61546597
- sourceid: NGC 4748
- observer: mainpal
- ra_pnt: 193.0519
- dec_pnt: -13.41472
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_135T01_9000001226_08814cztM0_level2.evt
| modeM0/AS1A03_135T01_9000001226_08814cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,069,440 | 113,967,360 |
| Size | 467.4 MB
| 108.7 MB
|
| Events in quadrant A | 3,722,676 | 766,592 |
| Events in quadrant B | 3,846,748 | 759,337 |
| Events in quadrant C | 3,270,281 | 739,993 |
| Events in quadrant D | 3,556,045 | 727,542 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15182 | 3 |
| B | 0 | 15656 | 2 |
| C | 0 | 13931 | 2 |
| D | 0 | 14817 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6570 | 106 | 1.613394% |
| B | 6570 | 159 | 2.420091% |
| C | 6570 | 75 | 1.141553% |
| D | 6570 | 108 | 1.643836% |
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 | 7890 | 6570 | 5 | 5 | 0.06% | 0.08% |  |
| B | 7890 | 6570 | 56 | 56 | 0.71% | 0.85% |  |
| C | 7890 | 6570 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7890 | 6570 | 18 | 18 | 0.23% | 0.27% |  |
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 | 8 | 5 | 312627 | 1759.09 | 882 | 867 | 177.2 |
| A | 15 | 174 | 12672 | 66.61 | 882 | 867 | 177.2 |
| A | 0 | 226 | 8548 | 43.34 | 882 | 867 | 177.2 |
| B | 10 | 16 | 408039 | 2511.62 | 865 | 847 | 162.1 |
| B | 0 | 214 | 54455 | 330.66 | 865 | 847 | 162.1 |
| B | 12 | 111 | 16766 | 98.19 | 865 | 847 | 162.1 |
| C | 13 | 61 | 6408 | 29.0 | 836 | 842 | 191.9 |
| C | 9 | 68 | 5176 | 22.58 | 836 | 842 | 191.9 |
| C | 1 | 16 | 4400 | 18.54 | 836 | 842 | 191.9 |
| D | 5 | 233 | 80770 | 386.65 | 847 | 827 | 206.8 |
| D | 7 | 71 | 52271 | 248.81 | 847 | 827 | 206.8 |
| D | 9 | 64 | 41109 | 194.83 | 847 | 827 | 206.8 |
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 |  |