Observation information
- date-obs: 2017-12-18
- time-obs: 02:49:33.189900000
- date-end: 2017-12-18
- time-end: 05:15:13.190500000
- obs_id: A04_112T01_9000001778
- exposure: 7675.26712941
- sourceid: LMC X-3
- observer: anuj
- ra_pnt: 84.73454
- dec_pnt: -64.08417
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_112T01_9000001778_12019cztM0_level2.evt
| modeM0/AS1A04_112T01_9000001778_12019cztM0_level2_quad_clean.evt
|
| Size (bytes) | 739,350,720 | 137,390,400 |
| Size | 705.1 MB
| 131.0 MB
|
| Events in quadrant A | 3,796,644 | 925,188 |
| Events in quadrant B | 9,380,042 | 876,744 |
| Events in quadrant C | 3,648,131 | 920,941 |
| Events in quadrant D | 5,011,358 | 867,356 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17096 | 3 |
| B | 0 | 33608 | 2 |
| C | 0 | 16882 | 2 |
| D | 0 | 20365 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 170 | 0 |
| B | 0 | 170 | 0 |
| C | 0 | 170 | 0 |
| D | 0 | 170 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8200 | 221 | 2.695122% |
| B | 8200 | 1200 | 14.634146% |
| C | 8200 | 191 | 2.329268% |
| D | 8200 | 374 | 4.560976% |
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 | 8741 | 8202 | 1 | 1 | 0.01% | 0.01% |  |
| B | 8741 | 8201 | 408 | 408 | 4.67% | 4.98% |  |
| C | 8741 | 8201 | 2 | 2 | 0.02% | 0.02% |  |
| D | 8741 | 8202 | 188 | 188 | 2.15% | 2.29% |  |
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 | 46672 | 233.6 | 950 | 929 | 195.8 |
| A | 13 | 251 | 22825 | 111.82 | 950 | 929 | 195.8 |
| A | 1 | 178 | 21706 | 106.1 | 950 | 929 | 195.8 |
| B | 4 | 206 | 4660643 | 26510.88 | 920 | 896 | 175.8 |
| B | 4 | 239 | 556743 | 3162.4 | 920 | 896 | 175.8 |
| B | 3 | 64 | 397388 | 2255.78 | 920 | 896 | 175.8 |
| C | 14 | 234 | 12314 | 52.89 | 932 | 934 | 215.2 |
| C | 13 | 61 | 6796 | 27.24 | 932 | 934 | 215.2 |
| C | 3 | 202 | 2252 | 6.13 | 932 | 934 | 215.2 |
| D | 7 | 80 | 597362 | 2747.31 | 912 | 883 | 217.1 |
| D | 8 | 195 | 301313 | 1383.74 | 912 | 883 | 217.1 |
| D | 1 | 52 | 212050 | 972.61 | 912 | 883 | 217.1 |
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 |  |