Observation information
- date-obs: 2018-09-27
- time-obs: 14:23:10.785000000
- date-end: 2018-09-27
- time-end: 15:19:28.783900000
- obs_id: T02_109T01_9000002386
- exposure: 1057.76971526
- sourceid: V471 Tau
- observer: lalithasairam
- ra_pnt: 57.60403
- dec_pnt: 17.24651
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_109T01_9000002386_16215cztM0_level2.evt
| modeM0/AS1T02_109T01_9000002386_16215cztM0_level2_quad_clean.evt
|
| Size (bytes) | 209,998,080 | 23,379,840 |
| Size | 200.3 MB
| 22.3 MB
|
| Events in quadrant A | 1,594,479 | 129,580 |
| Events in quadrant B | 1,721,575 | 129,368 |
| Events in quadrant C | 1,397,771 | 126,065 |
| Events in quadrant D | 1,455,694 | 124,155 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6479 | 1 |
| B | 0 | 6842 | 1 |
| C | 0 | 5866 | 1 |
| D | 0 | 6039 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 54 | 0 |
| B | 0 | 54 | 0 |
| C | 0 | 54 | 0 |
| D | 0 | 54 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 7 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2774 | 93 | 3.352559% |
| B | 2774 | 55 | 1.982696% |
| C | 2774 | 62 | 2.235040% |
| D | 2774 | 24 | 0.865177% |
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 | 2775 | 2775 | 35 | 35 | 1.26% | 1.26% |  |
| B | 2775 | 2775 | 15 | 15 | 0.54% | 0.54% |  |
| C | 2775 | 2775 | 1 | 1 | 0.04% | 0.04% |  |
| D | 2775 | 2775 | 5 | 5 | 0.18% | 0.18% |  |
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 | 15 | 174 | 168222 | 2360.89 | 342 | 334 | 71.1 |
| A | 4 | 2 | 62565 | 875.11 | 342 | 334 | 71.1 |
| A | 8 | 247 | 24633 | 341.7 | 342 | 334 | 71.1 |
| B | 3 | 64 | 234297 | 3523.75 | 342 | 333 | 66.4 |
| B | 0 | 189 | 53530 | 801.2 | 342 | 333 | 66.4 |
| B | 0 | 198 | 35097 | 523.58 | 342 | 333 | 66.4 |
| C | 14 | 238 | 52378 | 659.63 | 329 | 331 | 78.9 |
| C | 3 | 233 | 47378 | 596.26 | 329 | 331 | 78.9 |
| C | 0 | 207 | 8861 | 108.11 | 329 | 331 | 78.9 |
| D | 2 | 233 | 72870 | 852.35 | 336 | 326 | 85.1 |
| D | 1 | 52 | 45882 | 535.26 | 336 | 326 | 85.1 |
| D | 13 | 168 | 28569 | 331.84 | 336 | 326 | 85.1 |
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 |  |