Observation information
- date-obs: 2020-08-20
- time-obs: 19:27:57.362800000
- date-end: 2020-08-20
- time-end: 21:42:12.361500000
- obs_id: A09_104T02_9000003826
- exposure: 3823.38640846
- 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_26476cztM0_level2.evt
| modeM0/AS1A09_104T02_9000003826_26476cztM0_level2_quad_clean.evt
|
| Size (bytes) | 701,884,800 | 89,858,880 |
| Size | 669.4 MB
| 85.7 MB
|
| Events in quadrant A | 3,235,084 | 628,777 |
| Events in quadrant B | 3,328,432 | 642,892 |
| Events in quadrant C | 3,525,773 | 599,613 |
| Events in quadrant D | 10,737,456 | 405,745 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13596 | 0 |
| B | 0 | 13842 | 0 |
| C | 0 | 14433 | 0 |
| D | 0 | 36273 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6356 | 53 | 0.833858% |
| B | 6356 | 76 | 1.195721% |
| C | 6356 | 135 | 2.123977% |
| D | 6355 | 2903 | 45.680566% |
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 | 7611 | 6357 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7611 | 6357 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7611 | 6357 | 27 | 27 | 0.35% | 0.42% |  |
| D | 7609 | 6354 | 2552 | 2552 | 33.54% | 40.16% |  |
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 | 10279 | 55.91 | 838 | 824 | 169.1 |
| A | 3 | 137 | 7456 | 39.21 | 838 | 824 | 169.1 |
| A | 0 | 226 | 7354 | 38.61 | 838 | 824 | 169.1 |
| B | 4 | 200 | 32154 | 197.96 | 836 | 818 | 158.3 |
| B | 12 | 111 | 18697 | 112.95 | 836 | 818 | 158.3 |
| B | 11 | 111 | 16451 | 98.76 | 836 | 818 | 158.3 |
| C | 2 | 16 | 199624 | 1064.48 | 794 | 800 | 186.8 |
| C | 14 | 238 | 129704 | 690.14 | 794 | 800 | 186.8 |
| C | 3 | 233 | 59577 | 314.69 | 794 | 800 | 186.8 |
| D | 7 | 80 | 5781906 | 40496.41 | 598 | 583 | 142.8 |
| D | 1 | 52 | 1998261 | 13993.13 | 598 | 583 | 142.8 |
| D | 11 | 176 | 604231 | 4228.37 | 598 | 583 | 142.8 |
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 |  |