Observation information
- date-obs: 2026-07-13
- time-obs: 10:08:57.284800000
- date-end: 2026-07-13
- time-end: 12:04:13.015700000
- obs_id: A14_045T01_9000006590
- exposure: 6162.14991927
- sourceid: NGC 4383
- observer: ujjwalkrishnan
- ra_pnt: 186.3563
- dec_pnt: 16.47013
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_045T01_9000006590_58387cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590_58387cztM0_level2_quad_clean.evt
|
| Size (bytes) | 502,752,960 | 98,648,640 |
| Size | 479.5 MB
| 94.1 MB
|
| Events in quadrant A | 3,753,162 | 654,425 |
| Events in quadrant B | 6,741,772 | 636,936 |
| Events in quadrant C | 3,424,691 | 625,388 |
| Events in quadrant D | 4,153,683 | 588,341 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16105 | 0 |
| B | 0 | 24798 | 0 |
| C | 0 | 15343 | 0 |
| D | 0 | 16820 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6916 | 121 | 1.749566% |
| B | 6917 | 813 | 11.753650% |
| C | 6917 | 75 | 1.084285% |
| D | 6917 | 89 | 1.286685% |
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 | 6916 | 6916 | 94 | 94 | 1.36% | 1.36% |  |
| B | 6916 | 6916 | 576 | 576 | 8.33% | 8.33% |  |
| C | 6917 | 6917 | 72 | 72 | 1.04% | 1.04% |  |
| D | 6917 | 6917 | 95 | 95 | 1.37% | 1.37% |  |
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 | 8 | 237 | 233994 | 1225.73 | 763 | 743 | 190.3 |
| A | 10 | 251 | 148414 | 776.01 | 763 | 743 | 190.3 |
| A | 4 | 249 | 147547 | 771.46 | 763 | 743 | 190.3 |
| B | 5 | 172 | 2131944 | 13602.65 | 727 | 701 | 156.7 |
| B | 5 | 185 | 706760 | 4506.42 | 727 | 701 | 156.7 |
| B | 0 | 153 | 161450 | 1025.98 | 727 | 701 | 156.7 |
| C | 15 | 148 | 325703 | 1600.67 | 738 | 730 | 203.0 |
| C | 4 | 5 | 111561 | 545.9 | 738 | 730 | 203.0 |
| C | 12 | 252 | 20486 | 97.31 | 738 | 730 | 203.0 |
| D | 11 | 129 | 589199 | 2793.61 | 740 | 705 | 210.7 |
| D | 10 | 86 | 161906 | 765.23 | 740 | 705 | 210.7 |
| D | 2 | 153 | 85913 | 404.49 | 740 | 705 | 210.7 |
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 |  |