Observation information
- date-obs: 2017-07-02
- time-obs: 10:56:34.697000000
- date-end: 2017-07-02
- time-end: 13:09:38.702300000
- obs_id: G07_049T01_9000001352
- exposure: 6484.92631286
- 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_09523cztM0_level2.evt
| modeM0/AS1G07_049T01_9000001352_09523cztM0_level2_quad_clean.evt
|
| Size (bytes) | 490,783,680 | 142,525,440 |
| Size | 468.0 MB
| 135.9 MB
|
| Events in quadrant A | 3,725,961 | 979,354 |
| Events in quadrant B | 3,529,443 | 988,422 |
| Events in quadrant C | 3,214,794 | 967,904 |
| Events in quadrant D | 3,948,632 | 924,694 |
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 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15420 | 3 |
| B | 0 | 14875 | 2 |
| C | 0 | 13933 | 2 |
| D | 0 | 15803 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6551 | 117 | 1.785987% |
| B | 6551 | 111 | 1.694398% |
| C | 6551 | 72 | 1.099069% |
| D | 6551 | 241 | 3.678828% |
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 | 7876 | 6552 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7876 | 6552 | 13 | 13 | 0.17% | 0.20% |  |
| C | 7876 | 6552 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7876 | 6552 | 143 | 143 | 1.82% | 2.18% |  |
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 | 184814 | 1090.86 | 859 | 844 | 168.6 |
| A | 1 | 161 | 69469 | 406.91 | 859 | 844 | 168.6 |
| A | 1 | 178 | 68100 | 398.8 | 859 | 844 | 168.6 |
| B | 0 | 214 | 97267 | 618.67 | 853 | 836 | 155.9 |
| B | 10 | 252 | 56046 | 354.21 | 853 | 836 | 155.9 |
| B | 4 | 80 | 23647 | 146.35 | 853 | 836 | 155.9 |
| C | 13 | 61 | 6192 | 28.86 | 823 | 830 | 185.8 |
| C | 8 | 222 | 3160 | 12.54 | 823 | 830 | 185.8 |
| C | 3 | 202 | 2159 | 7.15 | 823 | 830 | 185.8 |
| D | 1 | 52 | 490101 | 2356.53 | 813 | 793 | 207.6 |
| D | 8 | 195 | 232753 | 1117.13 | 813 | 793 | 207.6 |
| D | 7 | 71 | 47452 | 224.71 | 813 | 793 | 207.6 |
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 |  |