Observation information
- date-obs: 2018-05-16
- time-obs: 04:51:06.519200000
- date-end: 2018-05-16
- time-end: 06:54:15.518800000
- obs_id: G08_084T01_9000002100
- exposure: 4710.97025557
- sourceid: 4U 1626-67
- observer: Kmukerjee
- ra_pnt: 248.07
- dec_pnt: -67.46091
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_084T01_9000002100_14226cztM0_level2.evt
| modeM0/AS1G08_084T01_9000002100_14226cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,149,760 | 105,863,040 |
| Size | 446.5 MB
| 101.0 MB
|
| Events in quadrant A | 3,046,076 | 702,354 |
| Events in quadrant B | 3,470,307 | 715,062 |
| Events in quadrant C | 3,336,404 | 690,826 |
| Events in quadrant D | 3,906,827 | 667,571 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12873 | 2 |
| B | 0 | 14195 | 1 |
| C | 0 | 13680 | 1 |
| D | 0 | 15726 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6164 | 21 | 0.340688% |
| B | 6164 | 71 | 1.151849% |
| C | 6164 | 27 | 0.438027% |
| D | 6164 | 71 | 1.151849% |
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 | 7390 | 6166 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7390 | 6166 | 29 | 29 | 0.39% | 0.47% |  |
| C | 7390 | 6166 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7390 | 6166 | 44 | 44 | 0.60% | 0.71% |  |
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 | 12 | 189 | 33845 | 212.23 | 777 | 763 | 155.9 |
| A | 8 | 6 | 7887 | 45.7 | 777 | 763 | 155.9 |
| A | 4 | 2 | 7054 | 40.36 | 777 | 763 | 155.9 |
| B | 0 | 229 | 236706 | 1632.69 | 777 | 758 | 144.5 |
| B | 0 | 197 | 68954 | 471.9 | 777 | 758 | 144.5 |
| B | 4 | 97 | 37035 | 251.03 | 777 | 758 | 144.5 |
| C | 3 | 233 | 344953 | 1970.58 | 765 | 771 | 174.7 |
| C | 10 | 22 | 8142 | 42.2 | 765 | 771 | 174.7 |
| C | 13 | 61 | 5410 | 26.56 | 765 | 771 | 174.7 |
| D | 10 | 199 | 446741 | 2511.27 | 757 | 740 | 177.6 |
| D | 8 | 195 | 252896 | 1419.8 | 757 | 740 | 177.6 |
| D | 12 | 110 | 143326 | 802.85 | 757 | 740 | 177.6 |
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 |  |