Observation information
- date-obs: 2026-05-06
- time-obs: 22:52:40.899000000
- date-end: 2026-05-07
- time-end: 07:33:10.806900000
- obs_id: A14_102T01_9000006572
- exposure: 21941.2637435
- 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_57388cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57388cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,101,296,960 | 359,985,600 |
| Size | 2.0 GB
| 343.3 MB
|
| Events in quadrant A | 12,603,736 | 2,448,439 |
| Events in quadrant B | 12,439,513 | 2,618,115 |
| Events in quadrant C | 29,513,737 | 1,959,250 |
| Events in quadrant D | 21,162,926 | 2,037,126 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 57146 | 3 |
| B | 0 | 56578 | 3 |
| C | 0 | 106347 | 5 |
| D | 0 | 81447 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 540 | 0 |
| B | 0 | 540 | 0 |
| C | 0 | 540 | 0 |
| D | 0 | 540 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 26684 | 322 | 1.206716% |
| B | 26685 | 544 | 2.038598% |
| C | 26685 | 5603 | 20.996815% |
| D | 26685 | 2660 | 9.968147% |
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 | 31796 | 26971 | 46 | 46 | 0.14% | 0.17% |  |
| B | 31797 | 26972 | 46 | 46 | 0.14% | 0.17% |  |
| C | 31796 | 26972 | 4272 | 4272 | 13.44% | 15.84% |  |
| D | 31796 | 26972 | 2102 | 2102 | 6.61% | 7.79% |  |
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 | 364806 | 507.86 | 2911 | 2830 | 712.8 |
| A | 0 | 12 | 320914 | 446.27 | 2911 | 2830 | 712.8 |
| A | 3 | 61 | 284539 | 395.24 | 2911 | 2830 | 712.8 |
| B | 5 | 185 | 270469 | 439.94 | 2873 | 2762 | 608.5 |
| B | 4 | 201 | 205553 | 333.26 | 2873 | 2762 | 608.5 |
| B | 7 | 252 | 162732 | 262.89 | 2873 | 2762 | 608.5 |
| C | 15 | 224 | 17328474 | 25099.07 | 2564 | 2542 | 690.3 |
| C | 14 | 254 | 694108 | 1001.83 | 2564 | 2542 | 690.3 |
| C | 8 | 7 | 214829 | 307.53 | 2564 | 2542 | 690.3 |
| D | 8 | 240 | 5649390 | 7502.73 | 2697 | 2579 | 752.6 |
| D | 15 | 93 | 1100174 | 1458.34 | 2697 | 2579 | 752.6 |
| D | 2 | 249 | 795831 | 1053.97 | 2697 | 2579 | 752.6 |
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 |  |