Observation information
- date-obs: 2017-07-02
- time-obs: 12:53:59.701400000
- date-end: 2017-07-02
- time-end: 14:52:43.706000000
- obs_id: G07_049T01_9000001352
- exposure: 5764.06633689
- 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_09524cztM0_level2.evt
| modeM0/AS1G07_049T01_9000001352_09524cztM0_level2_quad_clean.evt
|
| Size (bytes) | 413,881,920 | 121,314,240 |
| Size | 394.7 MB
| 115.7 MB
|
| Events in quadrant A | 3,201,206 | 831,543 |
| Events in quadrant B | 3,054,384 | 829,114 |
| Events in quadrant C | 2,702,140 | 813,307 |
| Events in quadrant D | 3,182,075 | 794,834 |
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 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13234 | 2 |
| B | 0 | 12913 | 1 |
| C | 0 | 11943 | 1 |
| D | 0 | 13091 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5809 | 117 | 2.014116% |
| B | 5809 | 93 | 1.600964% |
| C | 5809 | 64 | 1.101739% |
| D | 5809 | 95 | 1.635393% |
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 | 7124 | 5810 | 5 | 5 | 0.07% | 0.09% |  |
| B | 7124 | 5810 | 3 | 3 | 0.04% | 0.05% |  |
| C | 7124 | 5810 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7124 | 5810 | 27 | 27 | 0.38% | 0.46% |  |
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 | 188134 | 1291.52 | 726 | 715 | 145.1 |
| A | 1 | 161 | 68417 | 466.54 | 726 | 715 | 145.1 |
| A | 1 | 178 | 67130 | 457.67 | 726 | 715 | 145.1 |
| B | 0 | 214 | 115320 | 854.46 | 723 | 708 | 134.1 |
| B | 10 | 252 | 38699 | 283.23 | 723 | 708 | 134.1 |
| B | 0 | 219 | 24617 | 178.25 | 723 | 708 | 134.1 |
| C | 13 | 61 | 5346 | 29.62 | 691 | 696 | 157.0 |
| C | 8 | 222 | 2232 | 9.78 | 691 | 696 | 157.0 |
| C | 12 | 4 | 1881 | 7.55 | 691 | 696 | 157.0 |
| D | 2 | 16 | 150017 | 815.79 | 693 | 680 | 183.1 |
| D | 8 | 195 | 136985 | 744.6 | 693 | 680 | 183.1 |
| D | 1 | 52 | 76246 | 412.8 | 693 | 680 | 183.1 |
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 |  |