Observation information
- date-obs: 2017-08-30
- time-obs: 00:31:35.230400000
- date-end: 2017-08-30
- time-end: 02:01:43.227200000
- obs_id: A03_073T01_9000001498
- exposure: 2736.7981288
- sourceid: 4U 1705-44
- observer: sriramou
- ra_pnt: 257.227
- dec_pnt: -44.10204
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_073T01_9000001498_10390cztM0_level2.evt
| modeM0/AS1A03_073T01_9000001498_10390cztM0_level2_quad_clean.evt
|
| Size (bytes) | 330,203,520 | 59,160,960 |
| Size | 314.9 MB
| 56.4 MB
|
| Events in quadrant A | 2,334,650 | 363,446 |
| Events in quadrant B | 2,504,287 | 370,547 |
| Events in quadrant C | 2,312,598 | 371,085 |
| Events in quadrant D | 2,521,902 | 349,537 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 96 | 0 |
| B | 0 | 96 | 0 |
| C | 0 | 96 | 0 |
| D | 0 | 96 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10029 | 1 |
| B | 0 | 10517 | 1 |
| C | 0 | 10070 | 1 |
| D | 0 | 10705 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4793 | 24 | 0.500730% |
| B | 4793 | 31 | 0.646777% |
| C | 4793 | 45 | 0.938869% |
| D | 4793 | 60 | 1.251826% |
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 | 4793 | 4793 | 20 | 20 | 0.42% | 0.42% |  |
| B | 4793 | 4793 | 16 | 16 | 0.33% | 0.33% |  |
| C | 4793 | 4793 | 41 | 41 | 0.86% | 0.86% |  |
| D | 4793 | 4793 | 60 | 60 | 1.25% | 1.25% |  |
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 | 5 | 16 | 133296 | 1145.46 | 568 | 557 | 115.9 |
| A | 1 | 162 | 7076 | 56.26 | 568 | 557 | 115.9 |
| A | 0 | 226 | 5299 | 40.92 | 568 | 557 | 115.9 |
| B | 4 | 239 | 103548 | 953.74 | 571 | 560 | 108.0 |
| B | 0 | 214 | 101108 | 931.14 | 571 | 560 | 108.0 |
| B | 0 | 85 | 25081 | 227.08 | 571 | 560 | 108.0 |
| C | 1 | 3 | 126708 | 985.5 | 554 | 555 | 128.0 |
| C | 14 | 234 | 22123 | 168.49 | 554 | 555 | 128.0 |
| C | 13 | 61 | 4014 | 27.02 | 554 | 555 | 128.0 |
| D | 14 | 34 | 274407 | 2120.81 | 543 | 527 | 129.1 |
| D | 8 | 195 | 79805 | 613.89 | 543 | 527 | 129.1 |
| D | 1 | 20 | 50070 | 383.64 | 543 | 527 | 129.1 |
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 |  |