Observation information
- date-obs: 2026-05-09
- time-obs: 11:11:02.254300000
- date-end: 2026-05-09
- time-end: 13:19:16.222400000
- obs_id: A14_102T01_9000006572
- exposure: 5735.35392797
- 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_57422cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57422cztM0_level2_quad_clean.evt
|
| Size (bytes) | 577,238,400 | 96,390,720 |
| Size | 550.5 MB
| 91.9 MB
|
| Events in quadrant A | 7,055,042 | 628,953 |
| Events in quadrant B | 3,167,108 | 701,321 |
| Events in quadrant C | 6,205,972 | 555,641 |
| Events in quadrant D | 4,432,008 | 576,388 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 25530 | 95 |
| B | 0 | 14119 | 104 |
| C | 0 | 23044 | 128 |
| D | 0 | 17728 | 106 |
| 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 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6547 | 594 | 9.072858% |
| B | 6542 | 116 | 1.773158% |
| C | 6544 | 937 | 14.318460% |
| D | 6547 | 356 | 5.437605% |
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 | 7691 | 6559 | 176 | 176 | 2.29% | 2.68% |  |
| B | 7678 | 6556 | 12 | 12 | 0.16% | 0.18% |  |
| C | 7682 | 6557 | 801 | 801 | 10.43% | 12.22% |  |
| D | 7685 | 6563 | 255 | 255 | 3.32% | 3.89% |  |
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 | 0 | 12 | 3872664 | 22059.6 | 719 | 702 | 175.5 |
| A | 7 | 64 | 203450 | 1155.11 | 719 | 702 | 175.5 |
| A | 10 | 251 | 155033 | 879.26 | 719 | 702 | 175.5 |
| B | 5 | 185 | 143881 | 932.17 | 716 | 690 | 153.6 |
| B | 0 | 213 | 43607 | 279.39 | 716 | 690 | 153.6 |
| B | 0 | 245 | 36784 | 234.97 | 716 | 690 | 153.6 |
| C | 15 | 224 | 3336757 | 18300.05 | 661 | 653 | 182.3 |
| C | 6 | 223 | 104731 | 570.92 | 661 | 653 | 182.3 |
| C | 14 | 254 | 93642 | 510.09 | 661 | 653 | 182.3 |
| D | 7 | 96 | 445159 | 2237.78 | 701 | 669 | 198.6 |
| D | 15 | 142 | 302146 | 1517.79 | 701 | 669 | 198.6 |
| D | 2 | 249 | 280137 | 1406.98 | 701 | 669 | 198.6 |
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 |  |