Observation information
- date-obs: 2026-05-05
- time-obs: 20:24:09.185800000
- date-end: 2026-05-05
- time-end: 22:37:13.154700000
- obs_id: A14_102T01_9000006572
- exposure: 7145.31019443
- sourceid: LMC X-4
- observer: rsharmaphys
- ra_pnt: 83.20648
- dec_pnt: -66.37033
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_102T01_9000006572_57368cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57368cztM0_level2_quad_clean.evt
|
| Size (bytes) | 545,348,160 | 96,471,360 |
| Size | 520.1 MB
| 92.0 MB
|
| Events in quadrant A | 3,677,647 | 659,737 |
| Events in quadrant B | 4,054,070 | 655,547 |
| Events in quadrant C | 7,088,170 | 548,901 |
| Events in quadrant D | 4,778,189 | 528,780 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16358 | 2 |
| B | 0 | 17477 | 2 |
| C | 0 | 26415 | 2 |
| D | 0 | 19833 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7583 | 93 | 1.226428% |
| B | 7583 | 319 | 4.206778% |
| C | 7583 | 906 | 11.947778% |
| D | 7583 | 415 | 5.472768% |
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 | 7982 | 7858 | 7 | 7 | 0.09% | 0.09% |  |
| B | 7982 | 7858 | 87 | 87 | 1.09% | 1.11% |  |
| C | 7982 | 7858 | 698 | 698 | 8.74% | 8.88% |  |
| D | 7982 | 7858 | 390 | 390 | 4.89% | 4.96% |  |
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 | 3 | 14 | 283653 | 1376.09 | 835 | 812 | 205.5 |
| A | 8 | 4 | 50783 | 243.12 | 835 | 812 | 205.5 |
| A | 0 | 12 | 32467 | 154.01 | 835 | 812 | 205.5 |
| B | 5 | 185 | 356975 | 2039.05 | 810 | 779 | 174.7 |
| B | 10 | 16 | 216777 | 1236.48 | 810 | 779 | 174.7 |
| B | 7 | 252 | 56360 | 318.17 | 810 | 779 | 174.7 |
| C | 15 | 224 | 3457773 | 16729.76 | 762 | 754 | 206.6 |
| C | 14 | 254 | 142376 | 685.36 | 762 | 754 | 206.6 |
| C | 12 | 2 | 140359 | 675.6 | 762 | 754 | 206.6 |
| D | 8 | 240 | 970814 | 4367.6 | 785 | 750 | 222.1 |
| D | 6 | 159 | 193307 | 866.97 | 785 | 750 | 222.1 |
| D | 3 | 12 | 110897 | 495.92 | 785 | 750 | 222.1 |
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 |  |