Observation information
- date-obs: 2026-05-03
- time-obs: 11:27:57.792900000
- date-end: 2026-05-03
- time-end: 13:24:42.772200000
- obs_id: A14_102T01_9000006572
- exposure: 5016.53148174
- 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_57333cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57333cztM0_level2_quad_clean.evt
|
| Size (bytes) | 483,042,240 | 85,636,800 |
| Size | 460.7 MB
| 81.7 MB
|
| Events in quadrant A | 2,846,235 | 579,403 |
| Events in quadrant B | 2,777,351 | 620,045 |
| Events in quadrant C | 6,603,657 | 472,609 |
| Events in quadrant D | 5,191,144 | 505,323 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12937 | 1 |
| B | 0 | 12505 | 1 |
| C | 0 | 23738 | 1 |
| D | 0 | 19489 | 1 |
| 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 | 120 | 0 |
| B | 0 | 120 | 0 |
| C | 0 | 120 | 0 |
| D | 0 | 120 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5950 | 72 | 1.210084% |
| B | 5951 | 74 | 1.243488% |
| C | 5951 | 1173 | 19.710973% |
| D | 5951 | 359 | 6.032600% |
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 | 7005 | 5951 | 15 | 15 | 0.21% | 0.25% |  |
| B | 7006 | 5952 | 17 | 17 | 0.24% | 0.29% |  |
| C | 7006 | 5952 | 934 | 934 | 13.33% | 15.69% |  |
| D | 7006 | 5952 | 299 | 299 | 4.27% | 5.02% |  |
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 | 9 | 46 | 195240 | 1200.11 | 650 | 634 | 162.2 |
| A | 0 | 12 | 66734 | 407.63 | 650 | 634 | 162.2 |
| A | 8 | 6 | 11228 | 65.33 | 650 | 634 | 162.2 |
| B | 0 | 213 | 56297 | 408.12 | 636 | 613 | 136.4 |
| B | 10 | 247 | 35269 | 254.0 | 636 | 613 | 136.4 |
| B | 10 | 16 | 29530 | 211.94 | 636 | 613 | 136.4 |
| C | 15 | 224 | 3254406 | 21019.4 | 569 | 563 | 154.8 |
| C | 12 | 250 | 490844 | 3167.15 | 569 | 563 | 154.8 |
| C | 12 | 252 | 271586 | 1750.77 | 569 | 563 | 154.8 |
| D | 3 | 224 | 1875131 | 10750.03 | 613 | 583 | 174.4 |
| D | 2 | 249 | 302780 | 1733.02 | 613 | 583 | 174.4 |
| D | 8 | 240 | 289816 | 1658.67 | 613 | 583 | 174.4 |
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 |  |