Observation information
- date-obs: 2017-08-14
- time-obs: 15:21:35.313600000
- date-end: 2017-08-14
- time-end: 17:33:47.315300000
- obs_id: A03_039T01_9000001462
- exposure: 4979.18804152
- 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/AS1A03_039T01_9000001462_10162cztM0_level2.evt
| modeM0/AS1A03_039T01_9000001462_10162cztM0_level2_quad_clean.evt
|
| Size (bytes) | 510,071,040 | 101,972,160 |
| Size | 486.4 MB
| 97.2 MB
|
| Events in quadrant A | 3,252,627 | 666,362 |
| Events in quadrant B | 3,535,846 | 672,150 |
| Events in quadrant C | 3,039,583 | 663,825 |
| Events in quadrant D | 5,166,564 | 620,487 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14210 | 2 |
| B | 0 | 14862 | 1 |
| C | 0 | 13791 | 1 |
| D | 0 | 19691 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6681 | 71 | 1.062715% |
| B | 6681 | 82 | 1.227361% |
| C | 6681 | 28 | 0.419099% |
| D | 6681 | 300 | 4.490346% |
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 | 7831 | 6682 | 8 | 8 | 0.10% | 0.12% |  |
| B | 7831 | 6682 | 5 | 5 | 0.06% | 0.07% |  |
| C | 7831 | 6682 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7831 | 6682 | 326 | 326 | 4.16% | 4.88% |  |
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 | 15 | 223 | 39458 | 234.4 | 818 | 802 | 164.9 |
| A | 15 | 174 | 30664 | 181.08 | 818 | 802 | 164.9 |
| A | 8 | 15 | 15529 | 89.3 | 818 | 802 | 164.9 |
| B | 4 | 239 | 126193 | 818.15 | 816 | 800 | 153.3 |
| B | 0 | 219 | 57169 | 367.79 | 816 | 800 | 153.3 |
| B | 0 | 214 | 36347 | 231.93 | 816 | 800 | 153.3 |
| C | 13 | 61 | 5870 | 28.49 | 778 | 782 | 178.6 |
| C | 14 | 67 | 3396 | 14.64 | 778 | 782 | 178.6 |
| C | 14 | 234 | 2013 | 6.89 | 778 | 782 | 178.6 |
| D | 2 | 16 | 1117648 | 6001.42 | 773 | 752 | 186.1 |
| D | 8 | 195 | 567744 | 3046.62 | 773 | 752 | 186.1 |
| D | 1 | 52 | 243726 | 1305.57 | 773 | 752 | 186.1 |
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 |  |