Observation information
- date-obs: 2026-05-09
- time-obs: 06:05:24.310500000
- date-end: 2026-05-09
- time-end: 08:04:24.288700000
- obs_id: A14_102T01_9000006572
- exposure: 5482.14699805
- 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_57418cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57418cztM0_level2_quad_clean.evt
|
| Size (bytes) | 488,877,120 | 88,272,000 |
| Size | 466.2 MB
| 84.2 MB
|
| Events in quadrant A | 5,011,116 | 568,537 |
| Events in quadrant B | 2,816,826 | 637,002 |
| Events in quadrant C | 5,967,448 | 503,996 |
| Events in quadrant D | 3,813,563 | 524,636 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19277 | 1 |
| B | 0 | 13017 | 1 |
| C | 0 | 22153 | 1 |
| D | 0 | 15827 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6275 | 516 | 8.223108% |
| B | 6276 | 89 | 1.418101% |
| C | 6275 | 954 | 15.203187% |
| D | 6275 | 242 | 3.856574% |
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 | 7140 | 6275 | 515 | 515 | 7.21% | 8.21% |  |
| B | 7141 | 6276 | 4 | 4 | 0.06% | 0.06% |  |
| C | 7140 | 6275 | 736 | 736 | 10.31% | 11.73% |  |
| D | 7140 | 6275 | 168 | 168 | 2.35% | 2.68% |  |
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 | 1613126 | 9888.87 | 663 | 645 | 163.1 |
| A | 10 | 251 | 635353 | 3892.48 | 663 | 645 | 163.1 |
| A | 7 | 64 | 155752 | 951.23 | 663 | 645 | 163.1 |
| B | 10 | 247 | 50492 | 347.0 | 667 | 641 | 143.7 |
| B | 5 | 185 | 48093 | 330.3 | 667 | 641 | 143.7 |
| B | 12 | 111 | 17725 | 118.92 | 667 | 641 | 143.7 |
| C | 15 | 224 | 3017995 | 17833.21 | 619 | 616 | 169.2 |
| C | 6 | 223 | 393039 | 2319.28 | 619 | 616 | 169.2 |
| C | 14 | 254 | 67964 | 398.04 | 619 | 616 | 169.2 |
| D | 7 | 96 | 667962 | 3623.57 | 649 | 621 | 184.2 |
| D | 2 | 249 | 213365 | 1155.17 | 649 | 621 | 184.2 |
| D | 15 | 142 | 100394 | 541.75 | 649 | 621 | 184.2 |
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 |  |