Observation information
- date-obs: 2022-05-03
- time-obs: 19:00:11.406000000
- date-end: 2022-05-03
- time-end: 20:11:23.380800000
- obs_id: A09_029T02_9000005106
- exposure: 1200.24700296
- sourceid: Vela -D IV
- observer: fsutaria
- ra_pnt: 135.0093
- dec_pnt: -45.23354
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_029T02_9000005106_35668cztM0_level2.evt
| modeM0/AS1A09_029T02_9000005106_35668cztM0_level2_quad_clean.evt
|
| Size (bytes) | 192,435,840 | 27,408,960 |
| Size | 183.5 MB
| 26.1 MB
|
| Events in quadrant A | 1,134,277 | 172,861 |
| Events in quadrant B | 1,311,940 | 176,697 |
| Events in quadrant C | 1,579,689 | 164,678 |
| Events in quadrant D | 1,654,049 | 159,549 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 46 | 0 |
| B | 0 | 46 | 0 |
| C | 0 | 46 | 0 |
| D | 0 | 46 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4567 | 2 |
| B | 0 | 5176 | 1 |
| C | 0 | 6029 | 1 |
| D | 0 | 6276 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2147 | 4 | 0.186306% |
| B | 2147 | 55 | 2.561714% |
| C | 2147 | 123 | 5.728924% |
| D | 2147 | 137 | 6.380997% |
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 | 4271 | 2148 | 1 | 1 | 0.02% | 0.05% |  |
| B | 4271 | 2148 | 35 | 35 | 0.82% | 1.63% |  |
| C | 4271 | 2148 | 104 | 104 | 2.44% | 4.84% |  |
| D | 4271 | 2148 | 100 | 100 | 2.34% | 4.66% |  |
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 | 10 | 83 | 65230 | 1171.19 | 267 | 262 | 55.5 |
| A | 15 | 169 | 23457 | 418.14 | 267 | 262 | 55.5 |
| A | 13 | 6 | 7775 | 135.44 | 267 | 262 | 55.5 |
| B | 5 | 255 | 134894 | 2574.82 | 266 | 260 | 52.3 |
| B | 5 | 172 | 87336 | 1665.29 | 266 | 260 | 52.3 |
| B | 5 | 200 | 28902 | 547.77 | 266 | 260 | 52.3 |
| C | 0 | 10 | 173572 | 2828.7 | 256 | 258 | 61.3 |
| C | 1 | 23 | 143209 | 2333.14 | 256 | 258 | 61.3 |
| C | 14 | 128 | 139777 | 2277.12 | 256 | 258 | 61.3 |
| D | 13 | 249 | 458390 | 7155.7 | 257 | 249 | 64.0 |
| D | 7 | 80 | 92117 | 1434.88 | 257 | 249 | 64.0 |
| D | 10 | 118 | 28707 | 444.49 | 257 | 249 | 64.0 |
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 |  |