Observation information
- date-obs: 2026-05-09
- time-obs: 13:04:35.233800000
- date-end: 2026-05-09
- time-end: 15:02:40.211400000
- obs_id: A14_102T01_9000006572
- exposure: 5280.68953943
- 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_57423cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57423cztM0_level2_quad_clean.evt
|
| Size (bytes) | 566,553,600 | 87,030,720 |
| Size | 540.3 MB
| 83.0 MB
|
| Events in quadrant A | 8,085,228 | 569,460 |
| Events in quadrant B | 3,154,428 | 627,926 |
| Events in quadrant C | 5,585,556 | 499,749 |
| Events in quadrant D | 3,686,525 | 522,840 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 28019 | 1 |
| B | 0 | 13694 | 1 |
| C | 0 | 20870 | 1 |
| D | 0 | 15134 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 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 | 5945 | 551 | 9.268293% |
| B | 5946 | 91 | 1.530441% |
| C | 5946 | 809 | 13.605785% |
| D | 5946 | 188 | 3.161789% |
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 | 7085 | 5946 | 432 | 432 | 6.10% | 7.27% |  |
| B | 7086 | 5947 | 10 | 10 | 0.14% | 0.17% |  |
| C | 7086 | 5947 | 725 | 725 | 10.23% | 12.19% |  |
| D | 7086 | 5947 | 167 | 167 | 2.36% | 2.81% |  |
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 | 4748561 | 30268.42 | 633 | 618 | 156.9 |
| A | 10 | 251 | 560880 | 3571.7 | 633 | 618 | 156.9 |
| A | 7 | 64 | 264265 | 1680.77 | 633 | 618 | 156.9 |
| B | 0 | 216 | 389491 | 2858.22 | 636 | 612 | 136.1 |
| B | 5 | 185 | 107537 | 785.89 | 636 | 612 | 136.1 |
| B | 0 | 245 | 28808 | 207.24 | 636 | 612 | 136.1 |
| C | 15 | 224 | 2812635 | 17607.79 | 581 | 574 | 159.7 |
| C | 14 | 254 | 255287 | 1594.89 | 581 | 574 | 159.7 |
| C | 6 | 223 | 193240 | 1206.38 | 581 | 574 | 159.7 |
| D | 15 | 142 | 340151 | 1947.08 | 618 | 590 | 174.4 |
| D | 7 | 96 | 265159 | 1517.07 | 618 | 590 | 174.4 |
| D | 8 | 240 | 167144 | 955.04 | 618 | 590 | 174.4 |
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 |  |