Observation information
- date-obs: 2020-08-27
- time-obs: 22:04:30.101500000
- date-end: 2020-08-28
- time-end: 00:25:07.097000000
- obs_id: A09_095T02_9000003846
- exposure: 6217.0355089
- 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_9000003846_26581cztM0_level2.evt
| modeM0/AS1A09_095T02_9000003846_26581cztM0_level2_quad_clean.evt
|
| Size (bytes) | 705,479,040 | 120,625,920 |
| Size | 672.8 MB
| 115.0 MB
|
| Events in quadrant A | 3,665,355 | 808,115 |
| Events in quadrant B | 4,515,682 | 809,984 |
| Events in quadrant C | 4,506,031 | 775,617 |
| Events in quadrant D | 8,147,760 | 714,343 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16102 | 0 |
| B | 0 | 18728 | 0 |
| C | 0 | 18270 | 0 |
| D | 0 | 29697 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7832 | 100 | 1.276813% |
| B | 7833 | 181 | 2.310737% |
| C | 7832 | 302 | 3.855975% |
| D | 7832 | 1571 | 20.058733% |
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 | 8437 | 7834 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8438 | 7835 | 12 | 12 | 0.14% | 0.15% |  |
| C | 8437 | 7833 | 94 | 94 | 1.11% | 1.20% |  |
| D | 8437 | 7834 | 1257 | 1257 | 14.90% | 16.05% |  |
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 | 20853 | 105.52 | 940 | 918 | 188.9 |
| A | 13 | 254 | 12698 | 62.35 | 940 | 918 | 188.9 |
| A | 3 | 137 | 8939 | 42.45 | 940 | 918 | 188.9 |
| B | 0 | 189 | 670482 | 3787.45 | 936 | 911 | 176.8 |
| B | 5 | 172 | 59868 | 333.49 | 936 | 911 | 176.8 |
| B | 3 | 112 | 53645 | 298.29 | 936 | 911 | 176.8 |
| C | 4 | 254 | 571665 | 2711.55 | 896 | 902 | 210.5 |
| C | 3 | 233 | 169758 | 802.19 | 896 | 902 | 210.5 |
| C | 14 | 238 | 143985 | 679.75 | 896 | 902 | 210.5 |
| D | 7 | 80 | 2761800 | 13257.34 | 856 | 828 | 208.3 |
| D | 1 | 52 | 1424076 | 6834.0 | 856 | 828 | 208.3 |
| D | 2 | 250 | 536590 | 2572.56 | 856 | 828 | 208.3 |
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 |  |