Observation information
- date-obs: 2026-05-08
- time-obs: 05:50:39.569500000
- date-end: 2026-05-08
- time-end: 07:48:42.546900000
- obs_id: A14_102T01_9000006572
- exposure: 5130.01482999
- 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_57403cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57403cztM0_level2_quad_clean.evt
|
| Size (bytes) | 501,217,920 | 87,644,160 |
| Size | 478.0 MB
| 83.6 MB
|
| Events in quadrant A | 4,349,325 | 587,726 |
| Events in quadrant B | 3,382,968 | 630,267 |
| Events in quadrant C | 7,188,905 | 467,339 |
| Events in quadrant D | 3,146,356 | 531,249 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17215 | 1 |
| B | 0 | 14514 | 1 |
| C | 0 | 25691 | 1 |
| D | 0 | 13848 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6258 | 105 | 1.677852% |
| B | 6259 | 105 | 1.677584% |
| C | 6259 | 1363 | 21.776642% |
| D | 6259 | 106 | 1.693561% |
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 | 7083 | 6259 | 34 | 34 | 0.48% | 0.54% |  |
| B | 7084 | 6260 | 23 | 23 | 0.32% | 0.37% |  |
| C | 7084 | 6260 | 1021 | 1021 | 14.41% | 16.31% |  |
| D | 7084 | 6260 | 59 | 59 | 0.83% | 0.94% |  |
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 | 1689708 | 10162.07 | 670 | 653 | 166.2 |
| A | 3 | 14 | 34684 | 204.74 | 670 | 653 | 166.2 |
| A | 13 | 248 | 20701 | 120.62 | 670 | 653 | 166.2 |
| B | 0 | 216 | 442561 | 3115.23 | 662 | 637 | 141.9 |
| B | 5 | 185 | 143425 | 1006.55 | 662 | 637 | 141.9 |
| B | 0 | 245 | 42543 | 295.41 | 662 | 637 | 141.9 |
| C | 15 | 224 | 4410908 | 27173.25 | 597 | 592 | 162.3 |
| C | 12 | 252 | 167819 | 1030.33 | 597 | 592 | 162.3 |
| C | 14 | 254 | 98787 | 605.01 | 597 | 592 | 162.3 |
| D | 8 | 240 | 168611 | 915.45 | 655 | 628 | 183.5 |
| D | 3 | 224 | 94584 | 512.03 | 655 | 628 | 183.5 |
| D | 2 | 249 | 76404 | 412.96 | 655 | 628 | 183.5 |
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 |  |