Observation information
- date-obs: 2026-07-13
- time-obs: 08:16:14.419900000
- date-end: 2026-07-13
- time-end: 10:21:33.022200000
- obs_id: A14_045T01_9000006590
- exposure: 5020.31477433
- 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_58386cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590_58386cztM0_level2_quad_clean.evt
|
| Size (bytes) | 692,380,800 | 99,947,520 |
| Size | 660.3 MB
| 95.3 MB
|
| Events in quadrant A | 4,773,312 | 696,716 |
| Events in quadrant B | 11,165,944 | 513,698 |
| Events in quadrant C | 3,435,993 | 685,333 |
| Events in quadrant D | 5,671,307 | 607,180 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19332 | 3 |
| B | 0 | 38383 | 0 |
| C | 0 | 15753 | 0 |
| D | 0 | 21727 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7518 | 261 | 3.471668% |
| B | 7519 | 2692 | 35.802633% |
| C | 7519 | 27 | 0.359090% |
| D | 7519 | 520 | 6.915813% |
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 | 7518 | 7518 | 241 | 241 | 3.21% | 3.21% |  |
| B | 7519 | 7519 | 2098 | 2098 | 27.90% | 27.90% |  |
| C | 7519 | 7519 | 24 | 24 | 0.32% | 0.32% |  |
| D | 7519 | 7519 | 545 | 545 | 7.25% | 7.25% |  |
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 | 12 | 114 | 525346 | 2551.86 | 826 | 803 | 205.6 |
| A | 13 | 248 | 521285 | 2532.11 | 826 | 803 | 205.6 |
| A | 4 | 249 | 228664 | 1108.53 | 826 | 803 | 205.6 |
| B | 5 | 185 | 4062450 | 27128.84 | 694 | 668 | 149.7 |
| B | 5 | 172 | 3475135 | 23206.13 | 694 | 668 | 149.7 |
| B | 2 | 249 | 287678 | 1916.95 | 694 | 668 | 149.7 |
| C | 4 | 5 | 129923 | 579.72 | 809 | 803 | 222.7 |
| C | 6 | 13 | 40722 | 179.23 | 809 | 803 | 222.7 |
| C | 14 | 254 | 17023 | 72.82 | 809 | 803 | 222.7 |
| D | 2 | 249 | 1294121 | 5792.31 | 789 | 754 | 223.3 |
| D | 11 | 129 | 551515 | 2466.57 | 789 | 754 | 223.3 |
| D | 12 | 128 | 241872 | 1079.84 | 789 | 754 | 223.3 |
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 |  |