Observation information
- date-obs: 2017-05-17
- time-obs: 17:26:35.211500000
- date-end: 2017-05-17
- time-end: 18:17:01.214000000
- obs_id: G07_087T01_9000001228
- exposure: 2639.19856665
- 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_08846cztM0_level2.evt
| modeM0/AS1G07_087T01_9000001228_08846cztM0_level2_quad_clean.evt
|
| Size (bytes) | 181,048,320 | 50,520,960 |
| Size | 172.7 MB
| 48.2 MB
|
| Events in quadrant A | 1,451,788 | 341,932 |
| Events in quadrant B | 1,306,409 | 345,401 |
| Events in quadrant C | 1,131,215 | 330,098 |
| Events in quadrant D | 1,410,714 | 321,986 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5953 | 1 |
| B | 0 | 5684 | 1 |
| C | 0 | 5396 | 1 |
| D | 0 | 6003 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 4 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 54 | 0 |
| B | 0 | 54 | 0 |
| C | 0 | 54 | 0 |
| D | 0 | 54 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2653 | 12 | 0.452318% |
| B | 2653 | 6 | 0.226159% |
| C | 2653 | 3 | 0.113080% |
| D | 2653 | 2 | 0.075386% |
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 | 2653 | 2653 | 6 | 6 | 0.23% | 0.23% |  |
| B | 2653 | 2653 | 0 | 0 | 0.00% | 0.00% |  |
| C | 2653 | 2653 | 0 | 0 | 0.00% | 0.00% |  |
| D | 2653 | 2653 | 1 | 1 | 0.04% | 0.04% |  |
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 | 256476 | 3997.62 | 309 | 303 | 64.1 |
| A | 15 | 174 | 3727 | 53.43 | 309 | 303 | 64.1 |
| A | 0 | 226 | 2950 | 41.31 | 309 | 303 | 64.1 |
| B | 0 | 214 | 62118 | 1014.23 | 309 | 302 | 60.9 |
| B | 0 | 219 | 14940 | 240.17 | 309 | 302 | 60.9 |
| B | 5 | 255 | 14745 | 236.97 | 309 | 302 | 60.9 |
| C | 1 | 16 | 4372 | 59.95 | 288 | 290 | 68.1 |
| C | 13 | 61 | 2196 | 27.99 | 288 | 290 | 68.1 |
| C | 8 | 222 | 1244 | 14.01 | 288 | 290 | 68.1 |
| D | 2 | 152 | 122197 | 1650.32 | 291 | 283 | 73.9 |
| D | 11 | 129 | 79074 | 1066.57 | 291 | 283 | 73.9 |
| D | 8 | 195 | 21981 | 293.72 | 291 | 283 | 73.9 |
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 |  |