Observation information
- date-obs: 2017-07-03
- time-obs: 18:14:54.732900000
- date-end: 2017-07-03
- time-end: 20:26:41.735300000
- obs_id: G07_049T01_9000001352
- exposure: 7313.35231113
- 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_09542cztM0_level2.evt
| modeM0/AS1G07_049T01_9000001352_09542cztM0_level2_quad_clean.evt
|
| Size (bytes) | 509,071,680 | 134,933,760 |
| Size | 485.5 MB
| 128.7 MB
|
| Events in quadrant A | 3,461,547 | 912,134 |
| Events in quadrant B | 3,569,054 | 907,510 |
| Events in quadrant C | 4,074,193 | 879,320 |
| Events in quadrant D | 3,811,331 | 874,557 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 4 | 0 |
| C | 0 | 4 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15335 | 86 |
| B | 0 | 15785 | 97 |
| C | 0 | 17677 | 128 |
| D | 0 | 16116 | 113 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7376 | 42 | 0.569414% |
| B | 7369 | 41 | 0.556385% |
| C | 7365 | 270 | 3.665988% |
| D | 7371 | 31 | 0.420567% |
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 | 7773 | 7411 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7773 | 7412 | 13 | 13 | 0.17% | 0.18% |  |
| C | 7773 | 7411 | 156 | 156 | 2.01% | 2.10% |  |
| D | 7773 | 7412 | 17 | 17 | 0.22% | 0.23% |  |
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 | 87924 | 501.53 | 851 | 831 | 173.7 |
| A | 1 | 178 | 30957 | 173.48 | 851 | 831 | 173.7 |
| A | 1 | 161 | 29012 | 162.28 | 851 | 831 | 173.7 |
| B | 4 | 80 | 115195 | 712.17 | 850 | 830 | 160.6 |
| B | 0 | 214 | 45787 | 279.95 | 850 | 830 | 160.6 |
| B | 0 | 187 | 24838 | 149.5 | 850 | 830 | 160.6 |
| C | 4 | 254 | 912921 | 4896.61 | 803 | 806 | 186.3 |
| C | 14 | 234 | 11863 | 59.36 | 803 | 806 | 186.3 |
| C | 13 | 61 | 6207 | 28.99 | 803 | 806 | 186.3 |
| D | 8 | 195 | 492919 | 2291.18 | 811 | 792 | 214.8 |
| D | 1 | 52 | 92059 | 424.91 | 811 | 792 | 214.8 |
| D | 13 | 104 | 46122 | 211.04 | 811 | 792 | 214.8 |
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 |  |