Observation information
- date-obs: 2026-05-07
- time-obs: 12:32:12.751700000
- date-end: 2026-05-07
- time-end: 14:28:41.730300000
- obs_id: A14_102T01_9000006572
- exposure: 4765.64176929
- 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_57393cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57393cztM0_level2_quad_clean.evt
|
| Size (bytes) | 428,071,680 | 86,155,200 |
| Size | 408.2 MB
| 82.2 MB
|
| Events in quadrant A | 2,746,769 | 589,246 |
| Events in quadrant B | 2,749,268 | 628,650 |
| Events in quadrant C | 6,872,328 | 456,267 |
| Events in quadrant D | 3,022,985 | 525,998 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12213 | 1 |
| B | 0 | 12358 | 1 |
| C | 0 | 24523 | 1 |
| D | 0 | 13066 | 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 | 5839 | 77 | 1.318719% |
| B | 5840 | 79 | 1.352740% |
| C | 5840 | 1301 | 22.277397% |
| D | 5840 | 105 | 1.797945% |
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 | 6989 | 5840 | 2 | 2 | 0.03% | 0.03% |  |
| B | 6990 | 5841 | 7 | 7 | 0.10% | 0.12% |  |
| C | 6990 | 5841 | 1013 | 1013 | 14.49% | 17.34% |  |
| D | 6990 | 5841 | 51 | 51 | 0.73% | 0.87% |  |
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 | 8 | 4 | 101993 | 630.47 | 652 | 637 | 160.8 |
| A | 3 | 14 | 66341 | 408.7 | 652 | 637 | 160.8 |
| A | 0 | 12 | 37688 | 230.47 | 652 | 637 | 160.8 |
| B | 5 | 185 | 79922 | 583.19 | 635 | 614 | 136.0 |
| B | 0 | 245 | 31196 | 224.88 | 635 | 614 | 136.0 |
| B | 0 | 153 | 30896 | 222.68 | 635 | 614 | 136.0 |
| C | 15 | 224 | 4213578 | 27791.79 | 552 | 548 | 151.6 |
| C | 12 | 2 | 129594 | 851.27 | 552 | 548 | 151.6 |
| C | 14 | 254 | 109469 | 718.51 | 552 | 548 | 151.6 |
| D | 3 | 224 | 115519 | 647.5 | 624 | 594 | 177.5 |
| D | 8 | 240 | 108955 | 610.51 | 624 | 594 | 177.5 |
| D | 2 | 249 | 76724 | 428.92 | 624 | 594 | 177.5 |
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 |  |