Observation information
- date-obs: 2020-08-25
- time-obs: 00:31:17.250000000
- date-end: 2020-08-25
- time-end: 02:35:52.246900000
- obs_id: A09_095T02_9000003840
- exposure: 5944.28970185
- sourceid: LMC X-2
- observer: vivek
- ra_pnt: 80.11684
- dec_pnt: -71.96481
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_095T02_9000003840_26538cztM0_level2.evt
| modeM0/AS1A09_095T02_9000003840_26538cztM0_level2_quad_clean.evt
|
| Size (bytes) | 660,643,200 | 114,215,040 |
| Size | 630.0 MB
| 108.9 MB
|
| Events in quadrant A | 3,495,049 | 762,347 |
| Events in quadrant B | 3,528,538 | 776,229 |
| Events in quadrant C | 4,608,870 | 734,674 |
| Events in quadrant D | 7,900,753 | 697,114 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15052 | 0 |
| B | 0 | 14958 | 0 |
| C | 0 | 18140 | 0 |
| D | 0 | 28287 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7012 | 49 | 0.698802% |
| B | 7012 | 98 | 1.397604% |
| C | 7012 | 385 | 5.490588% |
| D | 7012 | 1211 | 17.270394% |
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 | 7357 | 7013 | 3 | 3 | 0.04% | 0.04% |  |
| B | 7357 | 7013 | 11 | 11 | 0.15% | 0.16% |  |
| C | 7357 | 7013 | 172 | 172 | 2.34% | 2.45% |  |
| D | 7357 | 7013 | 1096 | 1096 | 14.90% | 15.63% |  |
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 | 0 | 13 | 220435 | 1303.31 | 832 | 814 | 168.5 |
| A | 5 | 168 | 64752 | 379.43 | 832 | 814 | 168.5 |
| A | 13 | 254 | 10276 | 56.15 | 832 | 814 | 168.5 |
| B | 3 | 112 | 130814 | 829.77 | 832 | 811 | 156.7 |
| B | 5 | 172 | 72210 | 455.72 | 832 | 811 | 156.7 |
| B | 3 | 64 | 25598 | 158.21 | 832 | 811 | 156.7 |
| C | 4 | 254 | 1179050 | 6354.39 | 794 | 801 | 185.4 |
| C | 3 | 233 | 208707 | 1121.25 | 794 | 801 | 185.4 |
| C | 14 | 238 | 128846 | 690.56 | 794 | 801 | 185.4 |
| D | 1 | 52 | 4505454 | 24925.75 | 764 | 746 | 180.7 |
| D | 13 | 104 | 223989 | 1235.26 | 764 | 746 | 180.7 |
| D | 7 | 80 | 205577 | 1133.38 | 764 | 746 | 180.7 |
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 |  |