Observation information
- date-obs: 2026-07-12
- time-obs: 09:38:30.215500000
- date-end: 2026-07-12
- time-end: 11:47:43.197400000
- obs_id: A14_045T01_9000006590
- exposure: 6128.47010255
- 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_58372cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590_58372cztM0_level2_quad_clean.evt
|
| Size (bytes) | 566,720,640 | 108,025,920 |
| Size | 540.5 MB
| 103.0 MB
|
| Events in quadrant A | 3,962,798 | 733,583 |
| Events in quadrant B | 8,064,261 | 632,874 |
| Events in quadrant C | 3,948,867 | 702,000 |
| Events in quadrant D | 4,400,085 | 662,970 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17189 | 0 |
| B | 0 | 29214 | 0 |
| C | 0 | 17355 | 0 |
| D | 0 | 17988 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7753 | 74 | 0.954469% |
| B | 7754 | 1715 | 22.117617% |
| C | 7754 | 87 | 1.122002% |
| D | 7754 | 33 | 0.425587% |
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 | 7753 | 7753 | 56 | 56 | 0.72% | 0.72% |  |
| B | 7754 | 7754 | 1355 | 1355 | 17.47% | 17.47% |  |
| C | 7754 | 7754 | 83 | 83 | 1.07% | 1.07% |  |
| D | 7754 | 7754 | 37 | 37 | 0.48% | 0.48% |  |
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 | 80 | 252038 | 1170.16 | 860 | 837 | 214.7 |
| A | 13 | 248 | 123416 | 571.0 | 860 | 837 | 214.7 |
| A | 4 | 238 | 64296 | 295.61 | 860 | 837 | 214.7 |
| B | 5 | 172 | 3563864 | 21842.95 | 754 | 727 | 163.1 |
| B | 2 | 249 | 725631 | 4443.85 | 754 | 727 | 163.1 |
| B | 4 | 201 | 112470 | 685.01 | 754 | 727 | 163.1 |
| C | 13 | 16 | 142887 | 619.96 | 832 | 827 | 229.1 |
| C | 6 | 223 | 107468 | 465.39 | 832 | 827 | 229.1 |
| C | 12 | 250 | 81507 | 352.09 | 832 | 827 | 229.1 |
| D | 9 | 49 | 329446 | 1376.52 | 836 | 800 | 238.8 |
| D | 11 | 129 | 270457 | 1129.44 | 836 | 800 | 238.8 |
| D | 12 | 128 | 92730 | 385.04 | 836 | 800 | 238.8 |
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 |  |