Observation information
- date-obs: 2026-05-08
- time-obs: 09:20:58.530100000
- date-end: 2026-05-08
- time-end: 11:18:46.508600000
- obs_id: A14_102T01_9000006572
- exposure: 5021.75124484
- 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_57406cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57406cztM0_level2_quad_clean.evt
|
| Size (bytes) | 457,560,000 | 86,595,840 |
| Size | 436.4 MB
| 82.6 MB
|
| Events in quadrant A | 3,604,862 | 583,291 |
| Events in quadrant B | 2,959,689 | 624,215 |
| Events in quadrant C | 6,475,904 | 474,300 |
| Events in quadrant D | 3,430,593 | 521,569 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15040 | 1 |
| B | 0 | 13037 | 1 |
| C | 0 | 23366 | 1 |
| D | 0 | 14399 | 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 | 5998 | 97 | 1.617206% |
| B | 5999 | 78 | 1.300217% |
| C | 5998 | 1185 | 19.756586% |
| D | 5998 | 175 | 2.917639% |
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 | 7068 | 5999 | 14 | 14 | 0.20% | 0.23% |  |
| B | 7069 | 6000 | 14 | 14 | 0.20% | 0.23% |  |
| C | 7067 | 5998 | 919 | 919 | 13.00% | 15.32% |  |
| D | 7068 | 5999 | 101 | 101 | 1.43% | 1.68% |  |
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 | 1052065 | 6546.97 | 652 | 636 | 160.6 |
| A | 3 | 14 | 11968 | 70.56 | 652 | 636 | 160.6 |
| A | 4 | 3 | 10707 | 62.71 | 652 | 636 | 160.6 |
| B | 0 | 216 | 177246 | 1284.68 | 637 | 613 | 137.5 |
| B | 10 | 247 | 59008 | 424.72 | 637 | 613 | 137.5 |
| B | 5 | 185 | 54086 | 388.92 | 637 | 613 | 137.5 |
| C | 15 | 224 | 3935381 | 25200.53 | 571 | 564 | 156.1 |
| C | 14 | 254 | 73138 | 464.8 | 571 | 564 | 156.1 |
| C | 12 | 252 | 71855 | 456.58 | 571 | 564 | 156.1 |
| D | 3 | 224 | 318042 | 1810.14 | 625 | 598 | 175.4 |
| D | 2 | 249 | 153457 | 871.64 | 625 | 598 | 175.4 |
| D | 8 | 240 | 142185 | 807.36 | 625 | 598 | 175.4 |
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 |  |