Observation information
- date-obs: 2019-01-14
- time-obs: 21:31:29.535100000
- date-end: 2019-01-14
- time-end: 23:53:48.535700000
- obs_id: A05_025T04_9000002652
- exposure: 4296.71195947
- sourceid: NGC 1851
- observer: pandey
- ra_pnt: 78.52817
- dec_pnt: -40.04655
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_025T04_9000002652_17833cztM0_level2.evt
| modeM0/AS1A05_025T04_9000002652_17833cztM0_level2_quad_clean.evt
|
| Size (bytes) | 469,730,880 | 99,432,000 |
| Size | 448.0 MB
| 94.8 MB
|
| Events in quadrant A | 3,162,041 | 646,497 |
| Events in quadrant B | 3,315,317 | 668,980 |
| Events in quadrant C | 3,297,494 | 638,057 |
| Events in quadrant D | 4,014,783 | 609,625 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13482 | 2 |
| B | 0 | 13696 | 2 |
| C | 0 | 13597 | 2 |
| D | 0 | 16204 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 21 | 0 |
| C | 0 | 21 | 0 |
| D | 0 | 21 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6418 | 27 | 0.420692% |
| B | 6418 | 54 | 0.841384% |
| C | 6418 | 66 | 1.028358% |
| D | 6418 | 123 | 1.916485% |
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 | 7788 | 6419 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7788 | 6419 | 9 | 9 | 0.12% | 0.14% |  |
| C | 7788 | 6419 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7788 | 6419 | 97 | 97 | 1.25% | 1.51% |  |
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 | 41021 | 248.1 | 812 | 799 | 162.1 |
| A | 0 | 226 | 6858 | 37.37 | 812 | 799 | 162.1 |
| A | 3 | 137 | 5931 | 31.66 | 812 | 799 | 162.1 |
| B | 10 | 245 | 63047 | 404.29 | 824 | 805 | 154.0 |
| B | 12 | 111 | 18215 | 113.09 | 824 | 805 | 154.0 |
| B | 0 | 219 | 15298 | 94.14 | 824 | 805 | 154.0 |
| C | 14 | 238 | 126453 | 682.47 | 796 | 803 | 184.1 |
| C | 13 | 62 | 46836 | 250.03 | 796 | 803 | 184.1 |
| C | 5 | 218 | 19365 | 100.82 | 796 | 803 | 184.1 |
| D | 7 | 238 | 782084 | 3734.03 | 778 | 763 | 209.2 |
| D | 12 | 110 | 118822 | 564.22 | 778 | 763 | 209.2 |
| D | 10 | 70 | 53240 | 250.79 | 778 | 763 | 209.2 |
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 |  |