Observation information
- date-obs: 2026-05-07
- time-obs: 10:49:28.770200000
- date-end: 2026-05-07
- time-end: 12:46:47.746500000
- obs_id: A14_102T01_9000006572
- exposure: 4656.1456129
- 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_57392cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57392cztM0_level2_quad_clean.evt
|
| Size (bytes) | 444,856,320 | 85,875,840 |
| Size | 424.2 MB
| 81.9 MB
|
| Events in quadrant A | 2,801,719 | 588,767 |
| Events in quadrant B | 2,749,687 | 630,328 |
| Events in quadrant C | 7,164,518 | 441,245 |
| Events in quadrant D | 3,290,588 | 526,465 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12459 | 1 |
| B | 0 | 12438 | 6 |
| C | 0 | 25394 | 1 |
| D | 0 | 13912 | 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 | 5919 | 69 | 1.165737% |
| B | 5919 | 58 | 0.979895% |
| C | 5919 | 1496 | 25.274540% |
| D | 5919 | 95 | 1.605001% |
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 | 7039 | 5920 | 5 | 5 | 0.07% | 0.08% |  |
| B | 7039 | 5920 | 5 | 5 | 0.07% | 0.08% |  |
| C | 7039 | 5920 | 1186 | 1186 | 16.85% | 20.03% |  |
| D | 7039 | 5920 | 43 | 43 | 0.61% | 0.73% |  |
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 | 98854 | 611.52 | 654 | 637 | 160.6 |
| A | 8 | 4 | 79803 | 492.91 | 654 | 637 | 160.6 |
| A | 3 | 14 | 32850 | 200.57 | 654 | 637 | 160.6 |
| B | 0 | 245 | 72637 | 530.21 | 638 | 615 | 135.8 |
| B | 5 | 185 | 36549 | 264.54 | 638 | 615 | 135.8 |
| B | 10 | 247 | 25703 | 184.69 | 638 | 615 | 135.8 |
| C | 15 | 224 | 4309984 | 28662.99 | 552 | 547 | 150.3 |
| C | 9 | 38 | 243606 | 1616.64 | 552 | 547 | 150.3 |
| C | 14 | 254 | 114340 | 756.86 | 552 | 547 | 150.3 |
| D | 2 | 31 | 178894 | 1008.33 | 626 | 600 | 176.8 |
| D | 14 | 49 | 143952 | 810.72 | 626 | 600 | 176.8 |
| D | 3 | 224 | 87953 | 494.02 | 626 | 600 | 176.8 |
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 |  |