Observation information
- date-obs: 2020-09-18
- time-obs: 20:04:36.297800000
- date-end: 2020-09-18
- time-end: 22:21:10.296200000
- obs_id: A09_044T01_9000003888
- exposure: 3884.84979527
- sourceid: 4U 1705-44
- observer: jitheshthejus
- ra_pnt: 257.227
- dec_pnt: -44.10204
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_044T01_9000003888_26906cztM0_level2.evt
| modeM0/AS1A09_044T01_9000003888_26906cztM0_level2_quad_clean.evt
|
| Size (bytes) | 646,237,440 | 89,631,360 |
| Size | 616.3 MB
| 85.5 MB
|
| Events in quadrant A | 3,806,229 | 593,078 |
| Events in quadrant B | 5,853,691 | 565,228 |
| Events in quadrant C | 3,143,894 | 590,317 |
| Events in quadrant D | 6,342,286 | 526,003 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15290 | 0 |
| B | 0 | 21555 | 0 |
| C | 0 | 13149 | 0 |
| D | 0 | 23224 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6290 | 106 | 1.685215% |
| B | 6290 | 877 | 13.942766% |
| C | 6290 | 48 | 0.763116% |
| D | 6290 | 653 | 10.381558% |
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 | 7485 | 6291 | 96 | 96 | 1.28% | 1.53% |  |
| B | 7485 | 6290 | 675 | 675 | 9.02% | 10.73% |  |
| C | 7485 | 6291 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7485 | 6291 | 562 | 562 | 7.51% | 8.93% |  |
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 | 0 | 13 | 731539 | 4607.55 | 794 | 781 | 158.6 |
| A | 13 | 254 | 10602 | 61.92 | 794 | 781 | 158.6 |
| A | 5 | 168 | 8903 | 51.21 | 794 | 781 | 158.6 |
| B | 3 | 64 | 2104596 | 14898.13 | 762 | 746 | 141.2 |
| B | 10 | 245 | 404307 | 2857.76 | 762 | 746 | 141.2 |
| B | 0 | 189 | 186080 | 1312.42 | 762 | 746 | 141.2 |
| C | 14 | 238 | 125143 | 689.52 | 770 | 775 | 180.4 |
| C | 15 | 208 | 19427 | 103.41 | 770 | 775 | 180.4 |
| C | 13 | 61 | 5292 | 25.04 | 770 | 775 | 180.4 |
| D | 1 | 52 | 2179597 | 12214.81 | 734 | 717 | 178.4 |
| D | 7 | 80 | 426529 | 2387.1 | 734 | 717 | 178.4 |
| D | 2 | 250 | 374449 | 2095.14 | 734 | 717 | 178.4 |
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 |  |