Observation information
- date-obs: 2026-05-04
- time-obs: 08:12:19.576300000
- date-end: 2026-05-04
- time-end: 10:14:13.553600000
- obs_id: A14_102T01_9000006572
- exposure: 6085.72312152
- 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_57345cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57345cztM0_level2_quad_clean.evt
|
| Size (bytes) | 410,806,080 | 93,464,640 |
| Size | 391.8 MB
| 89.1 MB
|
| Events in quadrant A | 2,952,429 | 614,696 |
| Events in quadrant B | 3,111,171 | 651,261 |
| Events in quadrant C | 4,012,760 | 579,156 |
| Events in quadrant D | 4,627,714 | 533,986 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13427 | 1 |
| B | 0 | 13881 | 2 |
| C | 0 | 16528 | 1 |
| D | 0 | 18125 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6459 | 53 | 0.820560% |
| B | 6459 | 126 | 1.950766% |
| C | 6459 | 191 | 2.957114% |
| D | 6459 | 377 | 5.836817% |
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 | 7314 | 6460 | 12 | 12 | 0.16% | 0.19% |  |
| B | 7314 | 6460 | 37 | 37 | 0.51% | 0.57% |  |
| C | 7314 | 6460 | 137 | 137 | 1.87% | 2.12% |  |
| D | 7314 | 6460 | 328 | 328 | 4.48% | 5.08% |  |
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 | 142664 | 815.16 | 702 | 684 | 174.2 |
| A | 3 | 14 | 39185 | 221.05 | 702 | 684 | 174.2 |
| A | 13 | 248 | 24302 | 135.6 | 702 | 684 | 174.2 |
| B | 10 | 16 | 111769 | 747.24 | 686 | 659 | 148.7 |
| B | 5 | 185 | 82376 | 549.56 | 686 | 659 | 148.7 |
| B | 7 | 252 | 60154 | 400.12 | 686 | 659 | 148.7 |
| C | 15 | 224 | 880543 | 4818.98 | 672 | 665 | 182.6 |
| C | 14 | 254 | 203969 | 1113.47 | 672 | 665 | 182.6 |
| C | 12 | 252 | 99870 | 543.33 | 672 | 665 | 182.6 |
| D | 8 | 240 | 782843 | 4152.17 | 672 | 642 | 188.4 |
| D | 2 | 249 | 482787 | 2559.38 | 672 | 642 | 188.4 |
| D | 3 | 224 | 298745 | 1582.43 | 672 | 642 | 188.4 |
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 |  |