Observation information
- date-obs: 2018-07-31
- time-obs: 11:21:32.338300000
- date-end: 2018-07-31
- time-end: 13:31:43.337800000
- obs_id: A04_126T01_9000002262
- exposure: 5045.36873685
- sourceid: 4U 1735-44
- observer: anjali
- ra_pnt: 264.7429
- dec_pnt: -44.45
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_126T01_9000002262_15355cztM0_level2.evt
| modeM0/AS1A04_126T01_9000002262_15355cztM0_level2_quad_clean.evt
|
| Size (bytes) | 483,946,560 | 107,668,800 |
| Size | 461.5 MB
| 102.7 MB
|
| Events in quadrant A | 3,206,165 | 716,234 |
| Events in quadrant B | 3,632,856 | 715,981 |
| Events in quadrant C | 3,278,834 | 713,386 |
| Events in quadrant D | 4,109,258 | 674,147 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13752 | 3 |
| B | 0 | 14913 | 2 |
| C | 0 | 13826 | 2 |
| D | 0 | 16278 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6318 | 78 | 1.234568% |
| B | 6318 | 159 | 2.516619% |
| C | 6318 | 74 | 1.171257% |
| D | 6318 | 156 | 2.469136% |
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 | 7523 | 6318 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7524 | 6319 | 56 | 56 | 0.74% | 0.89% |  |
| C | 7524 | 6319 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7524 | 6319 | 142 | 142 | 1.89% | 2.25% |  |
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 | 9 | 143 | 19668 | 113.12 | 825 | 810 | 166.7 |
| A | 4 | 2 | 9382 | 51.42 | 825 | 810 | 166.7 |
| A | 15 | 239 | 8837 | 48.15 | 825 | 810 | 166.7 |
| B | 10 | 16 | 303148 | 1979.28 | 814 | 798 | 152.8 |
| B | 0 | 189 | 41972 | 269.54 | 814 | 798 | 152.8 |
| B | 4 | 48 | 35546 | 227.47 | 814 | 798 | 152.8 |
| C | 3 | 233 | 194619 | 1084.69 | 789 | 795 | 178.7 |
| C | 13 | 61 | 5581 | 26.78 | 789 | 795 | 178.7 |
| C | 7 | 247 | 5229 | 24.81 | 789 | 795 | 178.7 |
| D | 1 | 20 | 600833 | 3116.26 | 794 | 772 | 192.6 |
| D | 2 | 33 | 282552 | 1463.35 | 794 | 772 | 192.6 |
| D | 7 | 38 | 103700 | 534.53 | 794 | 772 | 192.6 |
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 |  |