Observation information
- date-obs: 2026-05-05
- time-obs: 13:38:45.256600000
- date-end: 2026-05-05
- time-end: 15:42:56.229500000
- obs_id: A14_102T01_9000006572
- exposure: 4730.3817836
- 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_57364cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57364cztM0_level2_quad_clean.evt
|
| Size (bytes) | 492,059,520 | 81,057,600 |
| Size | 469.3 MB
| 77.3 MB
|
| Events in quadrant A | 3,093,702 | 555,388 |
| Events in quadrant B | 2,900,502 | 594,710 |
| Events in quadrant C | 8,091,453 | 391,423 |
| Events in quadrant D | 3,661,482 | 493,031 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13411 | 1 |
| B | 0 | 12977 | 1 |
| C | 0 | 28227 | 1 |
| D | 0 | 14925 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6008 | 120 | 1.997337% |
| B | 6008 | 105 | 1.747670% |
| C | 6007 | 1816 | 30.231397% |
| D | 6007 | 149 | 2.480439% |
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 | 7452 | 6288 | 46 | 46 | 0.62% | 0.73% |  |
| B | 7452 | 6288 | 13 | 13 | 0.17% | 0.21% |  |
| C | 7450 | 6279 | 1601 | 1601 | 21.49% | 25.50% |  |
| D | 7451 | 6288 | 128 | 128 | 1.72% | 2.04% |  |
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 | 13 | 248 | 298297 | 1796.04 | 665 | 648 | 165.7 |
| A | 3 | 14 | 138713 | 833.1 | 665 | 648 | 165.7 |
| A | 0 | 12 | 44662 | 265.58 | 665 | 648 | 165.7 |
| B | 5 | 185 | 195309 | 1384.25 | 654 | 630 | 140.6 |
| B | 15 | 54 | 31696 | 220.89 | 654 | 630 | 140.6 |
| B | 7 | 252 | 29971 | 208.63 | 654 | 630 | 140.6 |
| C | 15 | 224 | 5022865 | 34204.2 | 538 | 532 | 146.8 |
| C | 12 | 252 | 636071 | 4328.29 | 538 | 532 | 146.8 |
| C | 8 | 7 | 107696 | 729.83 | 538 | 532 | 146.8 |
| D | 8 | 240 | 434690 | 2421.95 | 633 | 604 | 179.2 |
| D | 2 | 249 | 170169 | 946.08 | 633 | 604 | 179.2 |
| D | 15 | 142 | 147622 | 820.28 | 633 | 604 | 179.2 |
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 |  |