Observation information
- date-obs: 2017-05-17
- time-obs: 10:19:55.189800000
- date-end: 2017-05-17
- time-end: 12:42:07.196100000
- obs_id: G07_087T01_9000001228
- exposure: 4594.88721698
- sourceid: centaurus A
- observer: sreekumar
- ra_pnt: 201.3651
- dec_pnt: -43.01911
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_087T01_9000001228_08842cztM0_level2.evt
| modeM0/AS1G07_087T01_9000001228_08842cztM0_level2_quad_clean.evt
|
| Size (bytes) | 459,964,800 | 96,295,680 |
| Size | 438.7 MB
| 91.8 MB
|
| Events in quadrant A | 3,367,740 | 629,216 |
| Events in quadrant B | 3,442,443 | 634,571 |
| Events in quadrant C | 3,045,029 | 615,335 |
| Events in quadrant D | 3,649,249 | 599,957 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14192 | 41 |
| B | 0 | 14180 | 45 |
| C | 0 | 13280 | 37 |
| D | 0 | 14674 | 39 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 23 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6262 | 85 | 1.357394% |
| B | 6260 | 119 | 1.900958% |
| C | 6263 | 64 | 1.021875% |
| D | 6262 | 164 | 2.618972% |
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 | 7533 | 6277 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7533 | 6278 | 30 | 30 | 0.40% | 0.48% |  |
| C | 7533 | 6276 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7533 | 6278 | 90 | 90 | 1.19% | 1.43% |  |
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 | 136777 | 841.5 | 816 | 802 | 161.6 |
| A | 15 | 174 | 51349 | 312.82 | 816 | 802 | 161.6 |
| A | 13 | 164 | 31989 | 193.01 | 816 | 802 | 161.6 |
| B | 4 | 48 | 263618 | 1736.71 | 809 | 790 | 151.3 |
| B | 0 | 214 | 21719 | 138.29 | 809 | 790 | 151.3 |
| B | 12 | 111 | 15454 | 96.9 | 809 | 790 | 151.3 |
| C | 13 | 61 | 5919 | 28.6 | 780 | 782 | 179.6 |
| C | 1 | 16 | 3562 | 15.48 | 780 | 782 | 179.6 |
| C | 3 | 202 | 2013 | 6.85 | 780 | 782 | 179.6 |
| D | 1 | 52 | 369964 | 1972.78 | 775 | 757 | 187.1 |
| D | 8 | 195 | 199704 | 1063.03 | 775 | 757 | 187.1 |
| D | 2 | 152 | 37688 | 197.33 | 775 | 757 | 187.1 |
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 |  |