Observation information
- date-obs: 2017-05-16
- time-obs: 20:29:55.151900000
- date-end: 2017-05-16
- time-end: 22:45:39.158800000
- obs_id: G07_087T01_9000001228
- exposure: 5473.60851316
- 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_08833cztM0_level2.evt
| modeM0/AS1G07_087T01_9000001228_08833cztM0_level2_quad_clean.evt
|
| Size (bytes) | 561,432,960 | 105,341,760 |
| Size | 535.4 MB
| 100.5 MB
|
| Events in quadrant A | 5,265,873 | 674,131 |
| Events in quadrant B | 3,550,770 | 690,091 |
| Events in quadrant C | 3,294,107 | 663,068 |
| Events in quadrant D | 4,387,649 | 644,800 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20718 | 4 |
| B | 0 | 15649 | 3 |
| C | 0 | 15266 | 3 |
| D | 0 | 18181 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7441 | 159 | 2.136810% |
| B | 7441 | 59 | 0.792904% |
| C | 7441 | 33 | 0.443489% |
| D | 7441 | 93 | 1.249832% |
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 | 7706 | 7443 | 76 | 76 | 0.99% | 1.02% |  |
| B | 7706 | 7443 | 9 | 9 | 0.12% | 0.12% |  |
| C | 7706 | 7443 | 4 | 4 | 0.05% | 0.05% |  |
| D | 7706 | 7443 | 54 | 54 | 0.70% | 0.73% |  |
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 | 1196386 | 6778.07 | 865 | 847 | 176.4 |
| A | 15 | 223 | 523297 | 2962.01 | 865 | 847 | 176.4 |
| A | 15 | 239 | 160495 | 905.12 | 865 | 847 | 176.4 |
| B | 0 | 214 | 64447 | 380.31 | 876 | 856 | 167.2 |
| B | 4 | 48 | 23316 | 134.33 | 876 | 856 | 167.2 |
| B | 5 | 255 | 20393 | 116.84 | 876 | 856 | 167.2 |
| C | 14 | 234 | 21374 | 106.56 | 830 | 834 | 192.8 |
| C | 1 | 3 | 18198 | 90.08 | 830 | 834 | 192.8 |
| C | 1 | 16 | 10693 | 51.15 | 830 | 834 | 192.8 |
| D | 1 | 52 | 387155 | 1782.68 | 825 | 803 | 216.7 |
| D | 2 | 152 | 232947 | 1071.14 | 825 | 803 | 216.7 |
| D | 8 | 195 | 229197 | 1053.84 | 825 | 803 | 216.7 |
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 |  |