Observation information
- date-obs: 2026-05-09
- time-obs: 09:40:04.267900000
- date-end: 2026-05-09
- time-end: 11:36:29.249500000
- obs_id: A14_102T01_9000006572
- exposure: 5453.44917244
- 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_57421cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57421cztM0_level2_quad_clean.evt
|
| Size (bytes) | 393,068,160 | 87,194,880 |
| Size | 374.9 MB
| 83.2 MB
|
| Events in quadrant A | 2,812,912 | 578,216 |
| Events in quadrant B | 2,793,602 | 621,498 |
| Events in quadrant C | 4,650,863 | 531,945 |
| Events in quadrant D | 3,833,358 | 496,212 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12395 | 1 |
| B | 0 | 12555 | 1 |
| C | 0 | 17975 | 1 |
| D | 0 | 15566 | 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 | 5900 | 105 | 1.779661% |
| B | 5901 | 85 | 1.440434% |
| C | 5901 | 411 | 6.964921% |
| D | 5901 | 411 | 6.964921% |
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 | 6985 | 5900 | 34 | 34 | 0.49% | 0.58% |  |
| B | 6986 | 5901 | 12 | 12 | 0.17% | 0.20% |  |
| C | 6985 | 5900 | 343 | 343 | 4.91% | 5.81% |  |
| D | 6986 | 5901 | 323 | 323 | 4.62% | 5.47% |  |
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 | 162615 | 1026.62 | 646 | 631 | 157.8 |
| A | 10 | 251 | 98221 | 618.51 | 646 | 631 | 157.8 |
| A | 0 | 12 | 26102 | 161.43 | 646 | 631 | 157.8 |
| B | 5 | 185 | 69393 | 508.73 | 630 | 607 | 135.2 |
| B | 0 | 153 | 67948 | 498.04 | 630 | 607 | 135.2 |
| B | 0 | 63 | 38492 | 280.19 | 630 | 607 | 135.2 |
| C | 15 | 224 | 1688750 | 10306.13 | 602 | 597 | 163.8 |
| C | 6 | 223 | 368052 | 2243.3 | 602 | 597 | 163.8 |
| C | 14 | 254 | 173553 | 1055.89 | 602 | 597 | 163.8 |
| D | 7 | 96 | 658273 | 3790.6 | 605 | 579 | 173.5 |
| D | 15 | 142 | 226270 | 1300.76 | 605 | 579 | 173.5 |
| D | 3 | 12 | 159655 | 916.83 | 605 | 579 | 173.5 |
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 |  |