Observation information
- date-obs: 2018-05-16
- time-obs: 08:19:33.518900000
- date-end: 2018-05-16
- time-end: 10:22:32.518200000
- obs_id: G08_084T01_9000002100
- exposure: 3707.98680583
- 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_14228cztM0_level2.evt
| modeM0/AS1G08_084T01_9000002100_14228cztM0_level2_quad_clean.evt
|
| Size (bytes) | 583,067,520 | 87,384,960 |
| Size | 556.1 MB
| 83.3 MB
|
| Events in quadrant A | 3,183,061 | 583,610 |
| Events in quadrant B | 3,326,665 | 590,894 |
| Events in quadrant C | 3,304,719 | 571,587 |
| Events in quadrant D | 7,431,529 | 474,614 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13122 | 2 |
| B | 0 | 13479 | 1 |
| C | 0 | 13493 | 1 |
| D | 0 | 26200 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6084 | 78 | 1.282051% |
| B | 6084 | 96 | 1.577909% |
| C | 6084 | 64 | 1.051940% |
| D | 6084 | 1513 | 24.868508% |
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 | 7380 | 6086 | 8 | 8 | 0.11% | 0.13% |  |
| B | 7380 | 6085 | 9 | 9 | 0.12% | 0.15% |  |
| C | 7380 | 6086 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7380 | 6086 | 1293 | 1293 | 17.52% | 21.25% |  |
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 | 12 | 189 | 36514 | 225.18 | 802 | 787 | 158.7 |
| A | 9 | 143 | 26344 | 161.08 | 802 | 787 | 158.7 |
| A | 15 | 222 | 15311 | 91.54 | 802 | 787 | 158.7 |
| B | 0 | 229 | 76489 | 516.09 | 795 | 776 | 146.7 |
| B | 4 | 97 | 49519 | 332.25 | 795 | 776 | 146.7 |
| B | 0 | 189 | 49063 | 329.14 | 795 | 776 | 146.7 |
| C | 3 | 233 | 269299 | 1534.04 | 777 | 783 | 175.0 |
| C | 14 | 234 | 7551 | 38.67 | 777 | 783 | 175.0 |
| C | 13 | 61 | 5591 | 27.47 | 777 | 783 | 175.0 |
| D | 12 | 110 | 2075387 | 12481.58 | 715 | 697 | 166.2 |
| D | 5 | 222 | 1575543 | 9474.46 | 715 | 697 | 166.2 |
| D | 10 | 172 | 666908 | 4008.0 | 715 | 697 | 166.2 |
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 |  |