Observation information
- date-obs: 2026-05-06
- time-obs: 08:37:41.533900000
- date-end: 2026-05-06
- time-end: 10:46:51.028500000
- obs_id: A14_102T01_9000006572
- exposure: 5884.34972417
- 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_57376cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57376cztM0_level2_quad_clean.evt
|
| Size (bytes) | 481,752,000 | 97,997,760 |
| Size | 459.4 MB
| 93.5 MB
|
| Events in quadrant A | 3,095,995 | 657,383 |
| Events in quadrant B | 3,274,836 | 700,614 |
| Events in quadrant C | 7,480,175 | 552,681 |
| Events in quadrant D | 3,455,895 | 585,388 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14120 | 1 |
| B | 0 | 14575 | 1 |
| C | 0 | 26868 | 1 |
| D | 0 | 14979 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 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 | 6766 | 64 | 0.945906% |
| B | 6766 | 107 | 1.581437% |
| C | 6766 | 1094 | 16.169081% |
| D | 6766 | 143 | 2.113509% |
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 | 7751 | 6766 | 22 | 22 | 0.28% | 0.33% |  |
| B | 7751 | 6766 | 38 | 38 | 0.49% | 0.56% |  |
| C | 7751 | 6766 | 1050 | 1050 | 13.55% | 15.52% |  |
| D | 7751 | 6766 | 113 | 113 | 1.46% | 1.67% |  |
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 | 3 | 61 | 112979 | 615.31 | 744 | 723 | 182.4 |
| A | 10 | 251 | 36022 | 193.49 | 744 | 723 | 182.4 |
| A | 13 | 248 | 33457 | 179.43 | 744 | 723 | 182.4 |
| B | 5 | 185 | 160868 | 1025.8 | 728 | 699 | 156.1 |
| B | 7 | 252 | 57629 | 364.61 | 728 | 699 | 156.1 |
| B | 0 | 63 | 38729 | 243.56 | 728 | 699 | 156.1 |
| C | 15 | 224 | 3382460 | 18436.32 | 674 | 666 | 183.4 |
| C | 8 | 7 | 688180 | 3748.08 | 674 | 666 | 183.4 |
| C | 9 | 38 | 287555 | 1564.01 | 674 | 666 | 183.4 |
| D | 2 | 120 | 183675 | 912.38 | 720 | 691 | 200.6 |
| D | 12 | 6 | 116424 | 577.06 | 720 | 691 | 200.6 |
| D | 2 | 249 | 96595 | 478.19 | 720 | 691 | 200.6 |
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 |  |