Observation information
- date-obs: 2026-07-14
- time-obs: 22:17:12.744400000
- date-end: 2026-07-15
- time-end: 00:30:31.719800000
- obs_id: A14_045T01_9000006590
- exposure: 2009.76632428
- 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_58410cztM0_level2.fits
| modeM0/AS1A14_045T01_9000006590_58410cztM0_level2_quad_clean.evt
|
| Size (bytes) | 709,623,360 | 86,627,520 |
| Size | 676.7 MB
| 82.6 MB
|
| Events in quadrant A | 4,882,215 | 665,848 |
| Events in quadrant B | 13,659,533 | 227,053 |
| Events in quadrant C | 3,688,223 | 653,859 |
| Events in quadrant D | 3,517,371 | 609,681 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19139 | 2 |
| B | 0 | 45178 | 2 |
| C | 0 | 15431 | 2 |
| D | 0 | 15051 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6697 | 295 | 4.404957% |
| B | 6697 | 5035 | 75.182918% |
| C | 6697 | 98 | 1.463342% |
| D | 6696 | 90 | 1.344086% |
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 | 7872 | 6698 | 156 | 156 | 1.98% | 2.33% |  |
| B | 7872 | 6696 | 3537 | 3537 | 44.93% | 52.82% |  |
| C | 7872 | 6698 | 50 | 50 | 0.64% | 0.75% |  |
| D | 7871 | 6697 | 41 | 41 | 0.52% | 0.61% |  |
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 | 1178939 | 6272.32 | 759 | 740 | 187.8 |
| A | 12 | 114 | 425079 | 2259.03 | 759 | 740 | 187.8 |
| A | 10 | 251 | 62368 | 328.09 | 759 | 740 | 187.8 |
| B | 6 | 255 | 11075529 | 115785.22 | 441 | 425 | 95.7 |
| B | 5 | 172 | 541341 | 5655.03 | 441 | 425 | 95.7 |
| B | 4 | 158 | 127391 | 1327.37 | 441 | 425 | 95.7 |
| C | 5 | 10 | 247573 | 1204.31 | 744 | 738 | 205.0 |
| C | 9 | 38 | 205051 | 996.85 | 744 | 738 | 205.0 |
| C | 13 | 16 | 79801 | 385.75 | 744 | 738 | 205.0 |
| D | 8 | 240 | 347573 | 1668.98 | 733 | 700 | 207.8 |
| D | 3 | 12 | 64348 | 306.24 | 733 | 700 | 207.8 |
| D | 11 | 129 | 58090 | 276.13 | 733 | 700 | 207.8 |
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 |  |