Observation information
- date-obs: 2017-07-03
- time-obs: 16:29:54.730400000
- date-end: 2017-07-03
- time-end: 18:40:16.733400000
- obs_id: G07_049T01_9000001352
- exposure: 6775.99634441
- sourceid: 4U 1626-67
- observer: dedhia
- ra_pnt: 248.07
- dec_pnt: -67.46091
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_049T01_9000001352_09541cztM0_level2.evt
| modeM0/AS1G07_049T01_9000001352_09541cztM0_level2_quad_clean.evt
|
| Size (bytes) | 483,266,880 | 128,185,920 |
| Size | 460.9 MB
| 122.2 MB
|
| Events in quadrant A | 3,429,105 | 867,498 |
| Events in quadrant B | 3,450,595 | 865,817 |
| Events in quadrant C | 3,825,598 | 840,320 |
| Events in quadrant D | 3,466,854 | 833,269 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14654 | 5 |
| B | 0 | 14878 | 4 |
| C | 0 | 16272 | 2 |
| D | 0 | 14922 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6827 | 43 | 0.629852% |
| B | 6827 | 76 | 1.113227% |
| C | 6828 | 199 | 2.914470% |
| D | 6828 | 71 | 1.039836% |
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 | 7588 | 6829 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7588 | 6829 | 13 | 13 | 0.17% | 0.19% |  |
| C | 7588 | 6829 | 133 | 133 | 1.75% | 1.95% |  |
| D | 7588 | 6829 | 48 | 48 | 0.63% | 0.70% |  |
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 | 1 | 162 | 160699 | 987.46 | 798 | 782 | 161.9 |
| A | 1 | 178 | 58495 | 356.37 | 798 | 782 | 161.9 |
| A | 1 | 161 | 58211 | 354.61 | 798 | 782 | 161.9 |
| B | 4 | 80 | 248904 | 1660.22 | 798 | 780 | 149.5 |
| B | 15 | 204 | 31686 | 206.79 | 798 | 780 | 149.5 |
| B | 0 | 214 | 24803 | 160.74 | 798 | 780 | 149.5 |
| C | 4 | 254 | 858983 | 4900.42 | 756 | 758 | 175.1 |
| C | 13 | 61 | 5978 | 29.8 | 756 | 758 | 175.1 |
| C | 14 | 238 | 5548 | 27.35 | 756 | 758 | 175.1 |
| D | 8 | 195 | 213533 | 1057.07 | 760 | 742 | 201.3 |
| D | 1 | 52 | 167353 | 827.67 | 760 | 742 | 201.3 |
| D | 13 | 104 | 58447 | 286.66 | 760 | 742 | 201.3 |
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 |  |