Observation information
- date-obs: 2026-05-03
- time-obs: 18:09:09.724100000
- date-end: 2026-05-03
- time-end: 20:16:16.695000000
- obs_id: A14_102T01_9000006572
- exposure: 5859.67152387
- 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_57337cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57337cztM0_level2_quad_clean.evt
|
| Size (bytes) | 503,994,240 | 94,060,800 |
| Size | 480.6 MB
| 89.7 MB
|
| Events in quadrant A | 2,858,037 | 639,261 |
| Events in quadrant B | 3,227,829 | 679,379 |
| Events in quadrant C | 6,377,727 | 545,208 |
| Events in quadrant D | 5,688,489 | 530,965 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13584 | 196 |
| B | 0 | 14519 | 183 |
| C | 0 | 24012 | 475 |
| D | 0 | 21680 | 295 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 1 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 1 |
| D | 0 | 11 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6501 | 21 | 0.323027% |
| B | 6496 | 129 | 1.985837% |
| C | 6475 | 796 | 12.293436% |
| D | 6488 | 537 | 8.276819% |
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 | 7570 | 6515 | 5 | 5 | 0.07% | 0.08% |  |
| B | 7594 | 6519 | 63 | 63 | 0.83% | 0.97% |  |
| C | 7564 | 6496 | 612 | 612 | 8.09% | 9.42% |  |
| D | 7608 | 6510 | 491 | 491 | 6.45% | 7.54% |  |
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 | 58714 | 337.41 | 701 | 684 | 172.0 |
| A | 3 | 14 | 17753 | 99.25 | 701 | 684 | 172.0 |
| A | 4 | 3 | 12159 | 66.72 | 701 | 684 | 172.0 |
| B | 10 | 16 | 157013 | 1049.33 | 691 | 665 | 149.0 |
| B | 5 | 185 | 104518 | 697.01 | 691 | 665 | 149.0 |
| B | 7 | 252 | 103763 | 691.94 | 691 | 665 | 149.0 |
| C | 15 | 224 | 2096550 | 11996.14 | 637 | 631 | 174.7 |
| C | 6 | 223 | 934035 | 5342.4 | 637 | 631 | 174.7 |
| C | 12 | 252 | 485693 | 2776.29 | 637 | 631 | 174.7 |
| D | 3 | 224 | 1725023 | 9361.43 | 647 | 618 | 184.2 |
| D | 5 | 32 | 558685 | 3029.63 | 647 | 618 | 184.2 |
| D | 8 | 240 | 255946 | 1386.12 | 647 | 618 | 184.2 |
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 |  |