Observation information
- date-obs: 2017-11-18
- time-obs: 01:22:20.849500000
- date-end: 2017-11-18
- time-end: 02:06:30.847500000
- obs_id: A04_112T01_9000001698
- exposure: 1487.65829469
- 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_9000001698_11574cztM0_level2.evt
| modeM0/AS1A04_112T01_9000001698_11574cztM0_level2_quad_clean.evt
|
| Size (bytes) | 173,594,880 | 29,306,880 |
| Size | 165.6 MB
| 27.9 MB
|
| Events in quadrant A | 1,628,274 | 183,364 |
| Events in quadrant B | 1,667,378 | 185,896 |
| Events in quadrant C | 891,690 | 193,285 |
| Events in quadrant D | 940,767 | 187,899 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38 | 0 |
| B | 0 | 38 | 0 |
| C | 0 | 38 | 0 |
| D | 0 | 38 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6127 | 1 |
| B | 0 | 6201 | 1 |
| C | 0 | 3836 | 1 |
| D | 0 | 3998 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1871 | 223 | 11.918760% |
| B | 1871 | 275 | 14.698022% |
| C | 1871 | 21 | 1.122394% |
| D | 1871 | 21 | 1.122394% |
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 | 2652 | 1873 | 109 | 109 | 4.11% | 5.82% |  |
| B | 2652 | 1873 | 122 | 122 | 4.60% | 6.51% |  |
| C | 2652 | 1873 | 0 | 0 | 0.00% | 0.00% |  |
| D | 2652 | 1873 | 3 | 3 | 0.11% | 0.16% |  |
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 | 8 | 5 | 662661 | 13674.15 | 227 | 221 | 48.4 |
| A | 1 | 162 | 28998 | 594.02 | 227 | 221 | 48.4 |
| A | 1 | 178 | 15455 | 314.46 | 227 | 221 | 48.4 |
| B | 4 | 239 | 670803 | 14402.38 | 228 | 222 | 46.6 |
| B | 3 | 64 | 39530 | 844.24 | 228 | 222 | 46.6 |
| B | 15 | 204 | 39188 | 836.89 | 228 | 222 | 46.6 |
| C | 13 | 61 | 1711 | 27.07 | 228 | 229 | 54.7 |
| C | 12 | 4 | 911 | 12.46 | 228 | 229 | 54.7 |
| C | 3 | 202 | 559 | 6.03 | 228 | 229 | 54.7 |
| D | 2 | 120 | 33695 | 585.29 | 228 | 219 | 57.2 |
| D | 7 | 71 | 17887 | 308.9 | 228 | 219 | 57.2 |
| D | 2 | 234 | 9033 | 154.1 | 228 | 219 | 57.2 |
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 |  |