Observation information
- date-obs: 2018-05-16
- time-obs: 09:54:54.518600000
- date-end: 2018-05-16
- time-end: 12:14:16.518900000
- obs_id: G08_084T01_9000002100
- exposure: 3921.4678954
- 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_14229cztM0_level2.evt
| modeM0/AS1G08_084T01_9000002100_14229cztM0_level2_quad_clean.evt
|
| Size (bytes) | 581,918,400 | 89,314,560 |
| Size | 555.0 MB
| 85.2 MB
|
| Events in quadrant A | 3,407,349 | 573,610 |
| Events in quadrant B | 3,800,597 | 576,014 |
| Events in quadrant C | 3,843,821 | 557,149 |
| Events in quadrant D | 6,114,131 | 526,865 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14205 | 3 |
| B | 0 | 15374 | 2 |
| C | 0 | 15477 | 2 |
| D | 0 | 23144 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 16 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6754 | 120 | 1.776725% |
| B | 6754 | 227 | 3.360971% |
| C | 6754 | 106 | 1.569440% |
| D | 6754 | 483 | 7.151318% |
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 | 7990 | 6755 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7990 | 6756 | 62 | 62 | 0.78% | 0.92% |  |
| C | 7990 | 6756 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7990 | 6756 | 339 | 339 | 4.24% | 5.02% |  |
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 | 24436 | 136.35 | 873 | 855 | 172.9 |
| A | 8 | 15 | 14358 | 78.08 | 873 | 855 | 172.9 |
| A | 0 | 226 | 7991 | 41.26 | 873 | 855 | 172.9 |
| B | 0 | 229 | 276161 | 1739.82 | 858 | 839 | 158.2 |
| B | 4 | 97 | 61836 | 385.45 | 858 | 839 | 158.2 |
| B | 0 | 189 | 57195 | 356.13 | 858 | 839 | 158.2 |
| C | 3 | 233 | 541945 | 2821.65 | 842 | 846 | 191.8 |
| C | 14 | 234 | 18786 | 93.55 | 842 | 846 | 191.8 |
| C | 13 | 61 | 6223 | 28.04 | 842 | 846 | 191.8 |
| D | 5 | 222 | 2063087 | 10559.43 | 830 | 812 | 195.3 |
| D | 8 | 195 | 546011 | 2791.57 | 830 | 812 | 195.3 |
| D | 10 | 172 | 172204 | 877.58 | 830 | 812 | 195.3 |
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 |  |