Observation information
- date-obs: 2026-05-10
- time-obs: 04:24:08.726700000
- date-end: 2026-05-10
- time-end: 06:38:47.047500000
- obs_id: A14_102T01_9000006572
- exposure: 6615.04045349
- 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_57432cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57432cztM0_level2_quad_clean.evt
|
| Size (bytes) | 437,284,800 | 100,445,760 |
| Size | 417.0 MB
| 95.8 MB
|
| Events in quadrant A | 3,346,995 | 658,710 |
| Events in quadrant B | 3,329,690 | 706,227 |
| Events in quadrant C | 4,540,107 | 615,098 |
| Events in quadrant D | 4,423,779 | 572,404 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15052 | 2 |
| B | 0 | 14934 | 2 |
| C | 0 | 18449 | 2 |
| D | 0 | 18016 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7022 | 102 | 1.452578% |
| B | 7022 | 118 | 1.680433% |
| C | 7022 | 289 | 4.115637% |
| D | 7022 | 384 | 5.468527% |
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 | 7822 | 7022 | 29 | 29 | 0.37% | 0.41% |  |
| B | 7822 | 7022 | 12 | 12 | 0.15% | 0.17% |  |
| C | 7822 | 7022 | 181 | 181 | 2.31% | 2.58% |  |
| D | 7822 | 7022 | 319 | 319 | 4.08% | 4.54% |  |
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 | 10 | 251 | 306275 | 1639.75 | 760 | 740 | 186.3 |
| A | 3 | 14 | 37722 | 198.48 | 760 | 740 | 186.3 |
| A | 0 | 12 | 30261 | 158.43 | 760 | 740 | 186.3 |
| B | 10 | 247 | 92081 | 569.2 | 752 | 725 | 160.5 |
| B | 0 | 63 | 62324 | 383.8 | 752 | 725 | 160.5 |
| B | 0 | 213 | 41363 | 253.2 | 752 | 725 | 160.5 |
| C | 15 | 224 | 1048576 | 5250.67 | 736 | 727 | 199.6 |
| C | 14 | 254 | 311733 | 1558.42 | 736 | 727 | 199.6 |
| C | 13 | 3 | 158543 | 790.8 | 736 | 727 | 199.6 |
| D | 15 | 142 | 569808 | 2801.38 | 727 | 692 | 203.2 |
| D | 8 | 240 | 411511 | 2022.19 | 727 | 692 | 203.2 |
| D | 2 | 31 | 211081 | 1035.6 | 727 | 692 | 203.2 |
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 |  |