Observation information
- date-obs: 2018-12-21
- time-obs: 14:22:39.469000000
- date-end: 2018-12-21
- time-end: 16:24:52.468600000
- obs_id: A05_196T01_9000002584
- exposure: 4009.81106314
- sourceid: NGC 2818
- observer: nkrao
- ra_pnt: 139.0062
- dec_pnt: -36.62706
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_196T01_9000002584_17473cztM0_level2.evt
| modeM0/AS1A05_196T01_9000002584_17473cztM0_level2_quad_clean.evt
|
| Size (bytes) | 496,823,040 | 84,608,640 |
| Size | 473.8 MB
| 80.7 MB
|
| Events in quadrant A | 3,155,339 | 542,375 |
| Events in quadrant B | 3,210,080 | 547,318 |
| Events in quadrant C | 3,245,408 | 521,867 |
| Events in quadrant D | 4,996,624 | 499,747 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13443 | 1 |
| B | 0 | 13458 | 1 |
| C | 0 | 13717 | 1 |
| D | 0 | 19215 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6458 | 111 | 1.718798% |
| B | 6459 | 119 | 1.842390% |
| C | 6459 | 127 | 1.966249% |
| D | 6459 | 662 | 10.249265% |
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 | 7333 | 6458 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7334 | 6459 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7334 | 6460 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7334 | 6460 | 485 | 485 | 6.61% | 7.51% |  |
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 | 24007 | 141.36 | 811 | 794 | 164.2 |
| A | 4 | 2 | 9937 | 55.68 | 811 | 794 | 164.2 |
| A | 0 | 226 | 7311 | 39.69 | 811 | 794 | 164.2 |
| B | 0 | 189 | 29605 | 185.55 | 808 | 787 | 155.3 |
| B | 12 | 111 | 17929 | 110.37 | 808 | 787 | 155.3 |
| B | 11 | 111 | 15249 | 93.12 | 808 | 787 | 155.3 |
| C | 14 | 238 | 121059 | 665.05 | 773 | 781 | 180.9 |
| C | 7 | 220 | 68695 | 375.51 | 773 | 781 | 180.9 |
| C | 5 | 218 | 33987 | 183.6 | 773 | 781 | 180.9 |
| D | 7 | 238 | 1611583 | 8940.43 | 746 | 726 | 180.2 |
| D | 10 | 70 | 307556 | 1702.94 | 746 | 726 | 180.2 |
| D | 11 | 176 | 59007 | 323.47 | 746 | 726 | 180.2 |
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 |  |