Observation information
- date-obs: 2026-03-10
- time-obs: 01:31:53.794000000
- date-end: 2026-03-10
- time-end: 03:40:25.052900000
- obs_id: A14_060T01_9000006556
- exposure: 5272.01794738
- sourceid: NGC1437A
- observer: Mpati
- ra_pnt: 55.79948
- dec_pnt: -36.29873
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_060T01_9000006556_56524cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56524cztM0_level2_quad_clean.evt
|
| Size (bytes) | 767,609,280 | 92,329,920 |
| Size | 732.0 MB
| 88.1 MB
|
| Events in quadrant A | 7,352,672 | 635,926 |
| Events in quadrant B | 6,444,423 | 619,014 |
| Events in quadrant C | 7,862,393 | 476,631 |
| Events in quadrant D | 6,209,934 | 572,448 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26891 | 2 |
| B | 0 | 23958 | 2 |
| C | 0 | 28375 | 2 |
| D | 0 | 23226 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7052 | 391 | 5.544526% |
| B | 7052 | 1160 | 16.449234% |
| C | 7053 | 1858 | 26.343400% |
| D | 7053 | 517 | 7.330214% |
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 | 7712 | 7052 | 216 | 216 | 2.80% | 3.06% |  |
| B | 7712 | 7053 | 701 | 701 | 9.09% | 9.94% |  |
| C | 7713 | 7053 | 1825 | 1825 | 23.66% | 25.88% |  |
| D | 7713 | 7054 | 768 | 768 | 9.96% | 10.89% |  |
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 | 0 | 12 | 3069822 | 16478.79 | 756 | 737 | 186.2 |
| A | 7 | 64 | 1113662 | 5975.61 | 756 | 737 | 186.2 |
| A | 8 | 249 | 123785 | 660.68 | 756 | 737 | 186.2 |
| B | 4 | 206 | 2098517 | 13345.68 | 729 | 704 | 157.2 |
| B | 10 | 246 | 603497 | 3834.79 | 729 | 704 | 157.2 |
| B | 5 | 185 | 245991 | 1560.44 | 729 | 704 | 157.2 |
| C | 15 | 230 | 5029970 | 27839.37 | 663 | 655 | 180.7 |
| C | 14 | 254 | 70319 | 385.62 | 663 | 655 | 180.7 |
| C | 12 | 252 | 68524 | 375.68 | 663 | 655 | 180.7 |
| D | 9 | 49 | 1532313 | 7233.72 | 748 | 714 | 211.7 |
| D | 2 | 249 | 1066597 | 5034.15 | 748 | 714 | 211.7 |
| D | 11 | 176 | 118656 | 557.04 | 748 | 714 | 211.7 |
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 |  |