Observation information
- date-obs: 2026-05-06
- time-obs: 23:58:12.901400000
- date-end: 2026-05-07
- time-end: 04:50:46.836900000
- obs_id: A14_102T01_9000006572
- exposure: 13872.7860333
- 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_57387cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57387cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,339,142,400 | 197,553,600 |
| Size | 1.2 GB
| 188.4 MB
|
| Events in quadrant A | 8,071,585 | 1,344,005 |
| Events in quadrant B | 8,129,528 | 1,321,007 |
| Events in quadrant C | 20,180,646 | 1,043,087 |
| Events in quadrant D | 11,855,454 | 1,083,940 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 36939 | 2 |
| B | 0 | 36992 | 1 |
| C | 0 | 71947 | 1 |
| D | 0 | 47425 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 346 | 0 |
| B | 0 | 346 | 0 |
| C | 0 | 346 | 0 |
| D | 0 | 346 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 17228 | 170 | 0.986766% |
| B | 17229 | 366 | 2.124325% |
| C | 17229 | 4098 | 23.785478% |
| D | 17229 | 995 | 5.775147% |
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 | 17836 | 17512 | 19 | 19 | 0.11% | 0.11% |  |
| B | 17837 | 17513 | 41 | 41 | 0.23% | 0.23% |  |
| C | 17837 | 17513 | 3203 | 3203 | 17.96% | 18.29% |  |
| D | 17837 | 17513 | 857 | 857 | 4.80% | 4.89% |  |
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 | 3 | 14 | 315318 | 685.5 | 1870 | 1818 | 457.3 |
| A | 0 | 12 | 231087 | 501.32 | 1870 | 1818 | 457.3 |
| A | 4 | 13 | 97353 | 208.9 | 1870 | 1818 | 457.3 |
| B | 5 | 185 | 229350 | 579.78 | 1844 | 1769 | 392.5 |
| B | 4 | 201 | 189789 | 479.0 | 1844 | 1769 | 392.5 |
| B | 0 | 245 | 111472 | 279.48 | 1844 | 1769 | 392.5 |
| C | 15 | 224 | 12572012 | 28739.59 | 1612 | 1601 | 437.4 |
| C | 14 | 254 | 413181 | 940.99 | 1612 | 1601 | 437.4 |
| C | 8 | 7 | 309087 | 703.0 | 1612 | 1601 | 437.4 |
| D | 8 | 240 | 2516250 | 5120.46 | 1768 | 1691 | 491.1 |
| D | 7 | 96 | 557330 | 1131.46 | 1768 | 1691 | 491.1 |
| D | 2 | 249 | 459450 | 932.15 | 1768 | 1691 | 491.1 |
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 |  |