Observation information
- date-obs: 2026-05-09
- time-obs: 18:05:12.180700000
- date-end: 2026-05-09
- time-end: 20:09:50.153500000
- obs_id: A14_102T01_9000006572
- exposure: 6726.31985682
- 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_57426cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57426cztM0_level2_quad_clean.evt
|
| Size (bytes) | 539,138,880 | 101,977,920 |
| Size | 514.2 MB
| 97.3 MB
|
| Events in quadrant A | 5,285,824 | 662,479 |
| Events in quadrant B | 3,675,367 | 721,496 |
| Events in quadrant C | 5,658,252 | 611,227 |
| Events in quadrant D | 4,781,513 | 593,279 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20589 | 2 |
| B | 0 | 16052 | 1 |
| C | 0 | 21826 | 1 |
| D | 0 | 19216 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7168 | 283 | 3.948103% |
| B | 7168 | 119 | 1.660156% |
| C | 7168 | 509 | 7.101004% |
| D | 7168 | 336 | 4.687500% |
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 | 7478 | 7169 | 159 | 159 | 2.13% | 2.22% |  |
| B | 7478 | 7169 | 21 | 21 | 0.28% | 0.29% |  |
| C | 7478 | 7169 | 455 | 455 | 6.08% | 6.35% |  |
| D | 7478 | 7169 | 282 | 282 | 3.77% | 3.93% |  |
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 | 7 | 64 | 1153964 | 6145.91 | 762 | 743 | 187.6 |
| A | 8 | 4 | 877256 | 4671.24 | 762 | 743 | 187.6 |
| A | 10 | 251 | 133637 | 708.24 | 762 | 743 | 187.6 |
| B | 0 | 216 | 357624 | 2202.87 | 758 | 728 | 162.0 |
| B | 5 | 185 | 96475 | 590.98 | 758 | 728 | 162.0 |
| B | 0 | 245 | 43324 | 262.92 | 758 | 728 | 162.0 |
| C | 15 | 224 | 2115007 | 10814.71 | 717 | 710 | 195.5 |
| C | 6 | 223 | 426415 | 2177.5 | 717 | 710 | 195.5 |
| C | 14 | 254 | 202276 | 1031.02 | 717 | 710 | 195.5 |
| D | 7 | 96 | 603650 | 2932.88 | 729 | 696 | 205.6 |
| D | 8 | 240 | 467028 | 2268.33 | 729 | 696 | 205.6 |
| D | 15 | 142 | 339114 | 1646.13 | 729 | 696 | 205.6 |
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 |  |