Observation information
- date-obs: 2026-05-10
- time-obs: 11:35:50.992900000
- date-end: 2026-05-10
- time-end: 13:35:17.969100000
- obs_id: A14_102T01_9000006572
- exposure: 5340.16272837
- 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_57437cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57437cztM0_level2_quad_clean.evt
|
| Size (bytes) | 473,777,280 | 88,608,960 |
| Size | 451.8 MB
| 84.5 MB
|
| Events in quadrant A | 3,839,852 | 603,047 |
| Events in quadrant B | 2,834,899 | 642,829 |
| Events in quadrant C | 5,967,547 | 512,242 |
| Events in quadrant D | 4,428,134 | 505,045 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15781 | 1 |
| B | 0 | 12785 | 1 |
| C | 0 | 21914 | 1 |
| D | 0 | 17412 | 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 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6012 | 153 | 2.544910% |
| B | 6012 | 83 | 1.380572% |
| C | 6013 | 856 | 14.235822% |
| D | 6013 | 527 | 8.764344% |
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 | 7167 | 6013 | 4 | 4 | 0.06% | 0.07% |  |
| B | 7167 | 6013 | 24 | 24 | 0.33% | 0.40% |  |
| C | 7168 | 6014 | 752 | 752 | 10.49% | 12.50% |  |
| D | 7168 | 6014 | 499 | 499 | 6.96% | 8.30% |  |
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 | 1057632 | 6467.91 | 661 | 643 | 163.4 |
| A | 5 | 242 | 95903 | 582.91 | 661 | 643 | 163.4 |
| A | 7 | 64 | 70010 | 424.47 | 661 | 643 | 163.4 |
| B | 5 | 185 | 76840 | 554.27 | 646 | 622 | 137.5 |
| B | 10 | 247 | 55035 | 395.7 | 646 | 622 | 137.5 |
| B | 4 | 201 | 28142 | 200.13 | 646 | 622 | 137.5 |
| C | 15 | 224 | 2015656 | 12344.08 | 596 | 589 | 163.2 |
| C | 14 | 245 | 1297770 | 7946.39 | 596 | 589 | 163.2 |
| C | 14 | 254 | 110853 | 675.47 | 596 | 589 | 163.2 |
| D | 15 | 142 | 1206890 | 6901.5 | 614 | 586 | 174.8 |
| D | 2 | 249 | 373102 | 2131.24 | 614 | 586 | 174.8 |
| D | 7 | 96 | 106622 | 606.65 | 614 | 586 | 174.8 |
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 |  |