Observation information
- date-obs: 2018-03-14
- time-obs: 23:45:50.786800000
- date-end: 2018-03-15
- time-end: 02:11:50.789200000
- obs_id: G08_023T01_9000001978
- exposure: 5432.18642931
- sourceid: centaurus A
- observer: sreekumar
- ra_pnt: 201.6023
- dec_pnt: -42.8446
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_023T01_9000001978_13305cztM0_level2.evt
| modeM0/AS1G08_023T01_9000001978_13305cztM0_level2_quad_clean.evt
|
| Size (bytes) | 489,191,040 | 106,277,760 |
| Size | 466.5 MB
| 101.4 MB
|
| Events in quadrant A | 3,444,041 | 682,082 |
| Events in quadrant B | 3,708,765 | 698,775 |
| Events in quadrant C | 3,382,132 | 681,346 |
| Events in quadrant D | 3,776,484 | 640,525 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15326 | 3 |
| B | 0 | 16033 | 2 |
| C | 0 | 15203 | 2 |
| D | 0 | 16513 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7405 | 53 | 0.715733% |
| B | 7405 | 139 | 1.877110% |
| C | 7405 | 68 | 0.918298% |
| D | 7405 | 164 | 2.214720% |
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 | 8761 | 7408 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8761 | 7408 | 25 | 25 | 0.29% | 0.34% |  |
| C | 8761 | 7408 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8761 | 7408 | 74 | 74 | 0.84% | 1.00% |  |
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 | 1 | 162 | 30441 | 166.55 | 876 | 855 | 177.6 |
| A | 9 | 143 | 12791 | 67.19 | 876 | 855 | 177.6 |
| A | 1 | 178 | 11540 | 60.15 | 876 | 855 | 177.6 |
| B | 3 | 64 | 212477 | 1255.45 | 884 | 860 | 168.6 |
| B | 12 | 111 | 19934 | 113.16 | 884 | 860 | 168.6 |
| B | 3 | 209 | 16820 | 94.68 | 884 | 860 | 168.6 |
| C | 13 | 61 | 6264 | 26.92 | 865 | 870 | 200.4 |
| C | 14 | 234 | 3690 | 14.07 | 865 | 870 | 200.4 |
| C | 8 | 222 | 3084 | 11.05 | 865 | 870 | 200.4 |
| D | 13 | 249 | 245525 | 1211.21 | 842 | 817 | 202.0 |
| D | 1 | 52 | 152840 | 752.46 | 842 | 817 | 202.0 |
| D | 8 | 195 | 52106 | 253.86 | 842 | 817 | 202.0 |
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 |  |