Observation information
- date-obs: 2026-05-03
- time-obs: 21:27:29.690200000
- date-end: 2026-05-03
- time-end: 23:50:24.888400000
- obs_id: A14_102T01_9000006572
- exposure: 7483.50940323
- 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_57339cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57339cztM0_level2_quad_clean.evt
|
| Size (bytes) | 551,592,000 | 100,100,160 |
| Size | 526.0 MB
| 95.5 MB
|
| Events in quadrant A | 4,039,154 | 655,882 |
| Events in quadrant B | 3,828,130 | 695,065 |
| Events in quadrant C | 5,042,171 | 604,565 |
| Events in quadrant D | 6,905,067 | 533,943 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17932 | 2 |
| B | 0 | 17155 | 2 |
| C | 0 | 20665 | 3 |
| D | 0 | 25987 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 4 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7776 | 104 | 1.337449% |
| B | 7776 | 228 | 2.932099% |
| C | 7775 | 281 | 3.614148% |
| D | 7775 | 708 | 9.106109% |
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 | 8091 | 8052 | 39 | 39 | 0.48% | 0.48% |  |
| B | 8091 | 8052 | 62 | 62 | 0.77% | 0.77% |  |
| C | 8090 | 8051 | 185 | 185 | 2.29% | 2.30% |  |
| D | 8090 | 8051 | 508 | 508 | 6.28% | 6.31% |  |
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 | 635443 | 3044.93 | 853 | 832 | 208.4 |
| A | 3 | 14 | 44938 | 211.63 | 853 | 832 | 208.4 |
| A | 4 | 3 | 18930 | 86.84 | 853 | 832 | 208.4 |
| B | 10 | 246 | 163904 | 893.59 | 838 | 805 | 182.5 |
| B | 7 | 252 | 90915 | 493.7 | 838 | 805 | 182.5 |
| B | 0 | 213 | 62078 | 335.7 | 838 | 805 | 182.5 |
| C | 15 | 224 | 1307405 | 5977.17 | 812 | 803 | 218.6 |
| C | 6 | 223 | 328548 | 1499.3 | 812 | 803 | 218.6 |
| C | 14 | 254 | 88785 | 402.48 | 812 | 803 | 218.6 |
| D | 3 | 224 | 1895721 | 8504.1 | 795 | 758 | 222.8 |
| D | 8 | 240 | 564898 | 2531.71 | 795 | 758 | 222.8 |
| D | 2 | 249 | 503173 | 2254.71 | 795 | 758 | 222.8 |
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 |  |