Observation information
- date-obs: 2026-05-04
- time-obs: 16:44:03.479800000
- date-end: 2026-05-04
- time-end: 18:53:39.454800000
- obs_id: A14_102T01_9000006572
- exposure: 5878.41356045
- 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_57351cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57351cztM0_level2_quad_clean.evt
|
| Size (bytes) | 444,732,480 | 86,797,440 |
| Size | 424.1 MB
| 82.8 MB
|
| Events in quadrant A | 2,846,146 | 589,847 |
| Events in quadrant B | 2,877,141 | 624,546 |
| Events in quadrant C | 5,715,981 | 494,905 |
| Events in quadrant D | 4,529,991 | 475,966 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13129 | 7 |
| B | 0 | 13167 | 3 |
| C | 0 | 21625 | 96 |
| D | 0 | 17916 | 13 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 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 | 6344 | 19 | 0.299496% |
| B | 6346 | 28 | 0.441223% |
| C | 6335 | 835 | 13.180742% |
| D | 6341 | 368 | 5.803501% |
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 | 7777 | 6623 | 7 | 7 | 0.09% | 0.11% |  |
| B | 7777 | 6623 | 5 | 5 | 0.06% | 0.08% |  |
| C | 7777 | 6612 | 686 | 686 | 8.82% | 10.38% |  |
| D | 7776 | 6607 | 310 | 310 | 3.99% | 4.69% |  |
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 | 13 | 248 | 41471 | 238.11 | 693 | 674 | 171.3 |
| A | 4 | 95 | 40354 | 231.59 | 693 | 674 | 171.3 |
| A | 10 | 251 | 21700 | 122.72 | 693 | 674 | 171.3 |
| B | 7 | 252 | 39934 | 267.76 | 686 | 662 | 146.7 |
| B | 5 | 185 | 32791 | 219.06 | 686 | 662 | 146.7 |
| B | 10 | 246 | 26761 | 177.95 | 686 | 662 | 146.7 |
| C | 15 | 224 | 3001077 | 17780.58 | 621 | 613 | 168.7 |
| C | 14 | 254 | 80461 | 473.17 | 621 | 613 | 168.7 |
| C | 1 | 12 | 78841 | 463.57 | 621 | 613 | 168.7 |
| D | 8 | 240 | 1442143 | 7836.67 | 644 | 612 | 183.9 |
| D | 7 | 96 | 291896 | 1583.52 | 644 | 612 | 183.9 |
| D | 5 | 173 | 49832 | 267.58 | 644 | 612 | 183.9 |
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 |  |