Observation information
- date-obs: 2020-04-20
- time-obs: 18:09:15.287600000
- date-end: 2020-04-20
- time-end: 20:13:55.282500000
- obs_id: T03_191T01_9000003618
- exposure: 7178.15372716
- sourceid: LMC X-2
- observer: ramadevi
- ra_pnt: 80.11684
- dec_pnt: -71.96481
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_191T01_9000003618_24669cztM0_level2.evt
| modeM0/AS1T03_191T01_9000003618_24669cztM0_level2_quad_clean.evt
|
| Size (bytes) | 504,181,440 | 137,206,080 |
| Size | 480.8 MB
| 130.8 MB
|
| Events in quadrant A | 3,370,168 | 939,086 |
| Events in quadrant B | 3,529,592 | 938,053 |
| Events in quadrant C | 3,378,777 | 892,780 |
| Events in quadrant D | 4,499,124 | 882,135 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14846 | 1 |
| B | 0 | 15158 | 1 |
| C | 0 | 14858 | 1 |
| D | 0 | 18127 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7230 | 80 | 1.106501% |
| B | 7231 | 117 | 1.618033% |
| C | 7231 | 98 | 1.355276% |
| D | 7231 | 147 | 2.032914% |
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 | 7480 | 7231 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7481 | 7232 | 8 | 8 | 0.11% | 0.11% |  |
| C | 7481 | 7232 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7481 | 7232 | 66 | 66 | 0.88% | 0.91% |  |
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 | 15 | 223 | 36390 | 206.25 | 864 | 845 | 172.3 |
| A | 13 | 254 | 12506 | 67.66 | 864 | 845 | 172.3 |
| A | 3 | 137 | 7894 | 40.9 | 864 | 845 | 172.3 |
| B | 7 | 205 | 68569 | 416.87 | 855 | 833 | 162.5 |
| B | 7 | 202 | 38194 | 229.93 | 855 | 833 | 162.5 |
| B | 0 | 190 | 29929 | 179.06 | 855 | 833 | 162.5 |
| C | 14 | 238 | 130834 | 686.59 | 816 | 821 | 189.4 |
| C | 5 | 112 | 18300 | 92.31 | 816 | 821 | 189.4 |
| C | 10 | 91 | 12888 | 63.72 | 816 | 821 | 189.4 |
| D | 1 | 52 | 1252720 | 6217.21 | 830 | 806 | 201.4 |
| D | 8 | 195 | 56233 | 275.26 | 830 | 806 | 201.4 |
| D | 2 | 234 | 29971 | 144.84 | 830 | 806 | 201.4 |
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 |  |