Observation information
- date-obs: 2020-08-24
- time-obs: 21:02:57.252700000
- date-end: 2020-08-24
- time-end: 23:15:40.251700000
- obs_id: A09_095T02_9000003840
- exposure: 6138.93038048
- 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_26536cztM0_level2.evt
| modeM0/AS1A09_095T02_9000003840_26536cztM0_level2_quad_clean.evt
|
| Size (bytes) | 744,488,640 | 120,058,560 |
| Size | 710.0 MB
| 114.5 MB
|
| Events in quadrant A | 3,954,107 | 812,869 |
| Events in quadrant B | 3,806,841 | 828,783 |
| Events in quadrant C | 4,803,406 | 768,269 |
| Events in quadrant D | 9,488,057 | 716,321 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16434 | 0 |
| B | 0 | 15900 | 0 |
| C | 0 | 18844 | 0 |
| D | 0 | 33225 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7325 | 146 | 1.993174% |
| B | 7325 | 112 | 1.529010% |
| C | 7325 | 552 | 7.535836% |
| D | 7325 | 1421 | 19.399317% |
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 | 7750 | 7326 | 52 | 52 | 0.67% | 0.71% |  |
| B | 7750 | 7327 | 11 | 11 | 0.14% | 0.15% |  |
| C | 7750 | 7327 | 398 | 398 | 5.14% | 5.43% |  |
| D | 7750 | 7325 | 1303 | 1303 | 16.81% | 17.79% |  |
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 | 486764 | 2772.25 | 876 | 857 | 175.3 |
| A | 5 | 168 | 83107 | 469.26 | 876 | 857 | 175.3 |
| A | 13 | 254 | 12307 | 65.33 | 876 | 857 | 175.3 |
| B | 3 | 112 | 238207 | 1446.21 | 874 | 851 | 164.1 |
| B | 3 | 64 | 84356 | 508.79 | 874 | 851 | 164.1 |
| B | 5 | 172 | 36033 | 214.36 | 874 | 851 | 164.1 |
| C | 15 | 127 | 1217694 | 6362.69 | 824 | 828 | 191.3 |
| C | 14 | 238 | 130979 | 680.53 | 824 | 828 | 191.3 |
| C | 4 | 254 | 129754 | 674.12 | 824 | 828 | 191.3 |
| D | 1 | 52 | 4295848 | 23204.58 | 784 | 766 | 185.1 |
| D | 7 | 80 | 1750609 | 9453.69 | 784 | 766 | 185.1 |
| D | 13 | 104 | 352926 | 1902.58 | 784 | 766 | 185.1 |
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 |  |