Observation information
- date-obs: 2020-08-21
- time-obs: 00:36:01.360600000
- date-end: 2020-08-21
- time-end: 02:57:22.359400000
- obs_id: A09_104T02_9000003826
- exposure: 4452.79125594
- sourceid: PSR J1813-1246
- observer: Anusree
- ra_pnt: 273.349
- dec_pnt: -12.76695
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_104T02_9000003826_26479cztM0_level2.evt
| modeM0/AS1A09_104T02_9000003826_26479cztM0_level2_quad_clean.evt
|
| Size (bytes) | 626,699,520 | 96,073,920 |
| Size | 597.7 MB
| 91.6 MB
|
| Events in quadrant A | 3,708,622 | 620,562 |
| Events in quadrant B | 3,832,474 | 628,509 |
| Events in quadrant C | 3,974,878 | 596,434 |
| Events in quadrant D | 6,938,094 | 524,176 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16070 | 0 |
| B | 0 | 16311 | 0 |
| C | 0 | 16776 | 0 |
| D | 0 | 25952 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7751 | 53 | 0.683783% |
| B | 7752 | 106 | 1.367389% |
| C | 7752 | 107 | 1.380289% |
| D | 7751 | 971 | 12.527416% |
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 | 8481 | 7753 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8482 | 7753 | 2 | 2 | 0.02% | 0.03% |  |
| C | 8482 | 7754 | 1 | 1 | 0.01% | 0.01% |  |
| D | 8481 | 7753 | 826 | 826 | 9.74% | 10.65% |  |
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 | 13 | 254 | 12711 | 60.4 | 960 | 938 | 194.9 |
| A | 3 | 137 | 9103 | 41.89 | 960 | 938 | 194.9 |
| A | 0 | 226 | 8079 | 36.63 | 960 | 938 | 194.9 |
| B | 15 | 32 | 27976 | 146.81 | 957 | 935 | 184.2 |
| B | 0 | 230 | 22921 | 119.37 | 957 | 935 | 184.2 |
| B | 12 | 111 | 22540 | 117.3 | 957 | 935 | 184.2 |
| C | 3 | 233 | 241446 | 1106.67 | 915 | 922 | 217.3 |
| C | 14 | 238 | 143169 | 654.49 | 915 | 922 | 217.3 |
| C | 14 | 176 | 12714 | 54.26 | 915 | 922 | 217.3 |
| D | 7 | 80 | 2692724 | 12883.38 | 870 | 850 | 208.9 |
| D | 1 | 52 | 555268 | 2653.46 | 870 | 850 | 208.9 |
| D | 12 | 233 | 313223 | 1495.03 | 870 | 850 | 208.9 |
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 |  |