Observation information
- date-obs: 2026-05-05
- time-obs: 22:02:12.168400000
- date-end: 2026-05-06
- time-end: 00:19:44.145300000
- obs_id: A14_102T01_9000006572
- exposure: 7485.88298982
- 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_57369cztM0_level2.fits
| modeM0/AS1A14_102T01_9000006572_57369cztM0_level2_quad_clean.evt
|
| Size (bytes) | 580,478,400 | 101,632,320 |
| Size | 553.6 MB
| 96.9 MB
|
| Events in quadrant A | 4,165,516 | 664,960 |
| Events in quadrant B | 4,300,261 | 706,053 |
| Events in quadrant C | 7,026,554 | 587,858 |
| Events in quadrant D | 5,364,530 | 552,816 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18146 | 1 |
| B | 0 | 18651 | 1 |
| C | 0 | 26631 | 1 |
| D | 0 | 21804 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 166 | 0 |
| B | 0 | 166 | 0 |
| C | 0 | 166 | 0 |
| D | 0 | 166 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8127 | 77 | 0.947459% |
| B | 8128 | 201 | 2.472933% |
| C | 8127 | 791 | 9.732989% |
| D | 8127 | 446 | 5.487880% |
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 | 8535 | 8411 | 8 | 8 | 0.09% | 0.10% |  |
| B | 8536 | 8412 | 72 | 72 | 0.84% | 0.86% |  |
| C | 8535 | 8411 | 638 | 638 | 7.48% | 7.59% |  |
| D | 8535 | 8411 | 435 | 435 | 5.10% | 5.17% |  |
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 | 14 | 420938 | 1935.46 | 886 | 864 | 217.0 |
| A | 0 | 12 | 155550 | 712.7 | 886 | 864 | 217.0 |
| A | 8 | 4 | 70756 | 322.02 | 886 | 864 | 217.0 |
| B | 1 | 223 | 238103 | 1270.72 | 872 | 838 | 186.7 |
| B | 5 | 185 | 227165 | 1212.14 | 872 | 838 | 186.7 |
| B | 10 | 16 | 93991 | 498.9 | 872 | 838 | 186.7 |
| C | 15 | 224 | 2963358 | 13440.53 | 818 | 811 | 220.4 |
| C | 12 | 252 | 317149 | 1435.17 | 818 | 811 | 220.4 |
| C | 14 | 254 | 272967 | 1234.72 | 818 | 811 | 220.4 |
| D | 8 | 240 | 1026840 | 4347.39 | 833 | 795 | 236.0 |
| D | 2 | 249 | 310185 | 1310.9 | 833 | 795 | 236.0 |
| D | 15 | 142 | 275228 | 1162.78 | 833 | 795 | 236.0 |
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 |  |