Observation information
- date-obs: 2026-05-08
- time-obs: 14:23:56.476000000
- date-end: 2026-05-08
- time-end: 16:33:27.450000000
- obs_id: A14_102T01_9000006572
- exposure: 4825.21600807
- 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_57409cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57409cztM0_level2_quad_clean.evt
|
| Size (bytes) | 565,727,040 | 82,465,920 |
| Size | 539.5 MB
| 78.6 MB
|
| Events in quadrant A | 4,381,974 | 570,685 |
| Events in quadrant B | 3,398,406 | 596,167 |
| Events in quadrant C | 8,497,832 | 403,717 |
| Events in quadrant D | 4,170,759 | 483,490 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17393 | 1 |
| B | 0 | 14575 | 1 |
| C | 0 | 29713 | 1 |
| D | 0 | 17036 | 5 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6341 | 56 | 0.883141% |
| B | 6342 | 68 | 1.072217% |
| C | 6342 | 1997 | 31.488489% |
| D | 6341 | 357 | 5.630027% |
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 | 7771 | 6622 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7772 | 6623 | 22 | 22 | 0.28% | 0.33% |  |
| C | 7772 | 6610 | 1661 | 1661 | 21.37% | 25.13% |  |
| D | 7771 | 6622 | 287 | 287 | 3.69% | 4.33% |  |
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 | 12 | 1627086 | 9538.7 | 686 | 670 | 170.5 |
| A | 3 | 14 | 41794 | 241.19 | 686 | 670 | 170.5 |
| A | 4 | 3 | 21804 | 123.95 | 686 | 670 | 170.5 |
| B | 0 | 216 | 237715 | 1639.8 | 674 | 650 | 144.6 |
| B | 5 | 185 | 137270 | 945.01 | 674 | 650 | 144.6 |
| B | 0 | 63 | 99291 | 682.31 | 674 | 650 | 144.6 |
| C | 15 | 224 | 5032808 | 33280.66 | 549 | 543 | 151.2 |
| C | 6 | 223 | 549591 | 3631.1 | 549 | 543 | 151.2 |
| C | 12 | 249 | 472364 | 3120.37 | 549 | 543 | 151.2 |
| D | 8 | 240 | 1085283 | 5949.94 | 641 | 610 | 182.3 |
| D | 2 | 249 | 141806 | 774.53 | 641 | 610 | 182.3 |
| D | 3 | 12 | 133855 | 730.91 | 641 | 610 | 182.3 |
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 |  |