Observation information
- date-obs: 2026-05-04
- time-obs: 11:39:29.538000000
- date-end: 2026-05-04
- time-end: 13:40:34.514500000
- obs_id: A14_102T01_9000006572
- exposure: 5856.15428191
- 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_57348cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57348cztM0_level2_quad_clean.evt
|
| Size (bytes) | 406,235,520 | 91,828,800 |
| Size | 387.4 MB
| 87.6 MB
|
| Events in quadrant A | 2,881,080 | 609,690 |
| Events in quadrant B | 3,183,075 | 644,930 |
| Events in quadrant C | 4,286,540 | 556,824 |
| Events in quadrant D | 4,205,448 | 537,616 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12953 | 1 |
| B | 0 | 13857 | 1 |
| C | 0 | 17156 | 1 |
| D | 0 | 16679 | 3 |
| 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 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6185 | 89 | 1.438965% |
| B | 6186 | 160 | 2.586486% |
| C | 6186 | 348 | 5.625606% |
| D | 6185 | 250 | 4.042037% |
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 | 7265 | 6186 | 12 | 12 | 0.17% | 0.19% |  |
| B | 7266 | 6187 | 50 | 50 | 0.69% | 0.81% |  |
| C | 7266 | 6187 | 231 | 231 | 3.18% | 3.73% |  |
| D | 7265 | 6186 | 211 | 211 | 2.90% | 3.41% |  |
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 | 101791 | 596.06 | 683 | 667 | 169.7 |
| A | 3 | 14 | 46395 | 269.53 | 683 | 667 | 169.7 |
| A | 10 | 251 | 25848 | 148.42 | 683 | 667 | 169.7 |
| B | 5 | 185 | 218637 | 1537.87 | 664 | 640 | 141.8 |
| B | 7 | 252 | 113433 | 795.7 | 664 | 640 | 141.8 |
| B | 0 | 153 | 49918 | 347.63 | 664 | 640 | 141.8 |
| C | 15 | 224 | 1215793 | 7007.37 | 637 | 630 | 173.4 |
| C | 13 | 3 | 300400 | 1728.66 | 637 | 630 | 173.4 |
| C | 6 | 223 | 89146 | 510.44 | 637 | 630 | 173.4 |
| D | 8 | 240 | 438542 | 2367.48 | 651 | 622 | 185.0 |
| D | 5 | 222 | 313437 | 1691.14 | 651 | 622 | 185.0 |
| D | 2 | 249 | 312612 | 1686.68 | 651 | 622 | 185.0 |
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 |  |