Observation information
- date-obs: 2026-05-08
- time-obs: 07:30:05.551100000
- date-end: 2026-05-08
- time-end: 09:36:17.526900000
- obs_id: A14_102T01_9000006572
- exposure: 5261.4725095
- 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_57405cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57405cztM0_level2_quad_clean.evt
|
| Size (bytes) | 554,693,760 | 93,513,600 |
| Size | 529.0 MB
| 89.2 MB
|
| Events in quadrant A | 4,982,982 | 633,924 |
| Events in quadrant B | 3,544,299 | 679,168 |
| Events in quadrant C | 7,444,011 | 490,234 |
| Events in quadrant D | 4,045,230 | 563,974 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19326 | 1 |
| B | 0 | 15183 | 1 |
| C | 0 | 26768 | 1 |
| D | 0 | 16688 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6652 | 176 | 2.645821% |
| B | 6652 | 134 | 2.014432% |
| C | 6652 | 1611 | 24.218280% |
| D | 6653 | 271 | 4.073350% |
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 | 7572 | 6652 | 50 | 50 | 0.66% | 0.75% |  |
| B | 7572 | 6653 | 27 | 27 | 0.36% | 0.41% |  |
| C | 7572 | 6652 | 1228 | 1228 | 16.22% | 18.46% |  |
| D | 7573 | 6653 | 194 | 194 | 2.56% | 2.92% |  |
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 | 2059082 | 11584.37 | 720 | 703 | 177.7 |
| A | 13 | 248 | 51390 | 285.26 | 720 | 703 | 177.7 |
| A | 4 | 3 | 38345 | 211.84 | 720 | 703 | 177.7 |
| B | 0 | 216 | 291478 | 1927.84 | 710 | 683 | 150.8 |
| B | 5 | 185 | 270214 | 1786.87 | 710 | 683 | 150.8 |
| B | 0 | 245 | 52269 | 341.99 | 710 | 683 | 150.8 |
| C | 15 | 224 | 3314784 | 19290.51 | 629 | 623 | 171.8 |
| C | 6 | 223 | 1424236 | 8286.33 | 629 | 623 | 171.8 |
| C | 12 | 252 | 122539 | 709.63 | 629 | 623 | 171.8 |
| D | 8 | 240 | 510420 | 2557.02 | 700 | 669 | 199.4 |
| D | 15 | 142 | 266805 | 1335.0 | 700 | 669 | 199.4 |
| D | 3 | 12 | 164599 | 822.31 | 700 | 669 | 199.4 |
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 |  |