Observation information
- date-obs: 2026-03-10
- time-obs: 03:09:22.663000000
- date-end: 2026-03-10
- time-end: 05:21:16.048700000
- obs_id: A14_060T01_9000006556
- exposure: 5262.05126792
- 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_56525cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56525cztM0_level2_quad_clean.evt
|
| Size (bytes) | 962,161,920 | 96,575,040 |
| Size | 917.6 MB
| 92.1 MB
|
| Events in quadrant A | 10,022,415 | 620,997 |
| Events in quadrant B | 9,993,658 | 541,936 |
| Events in quadrant C | 8,930,014 | 568,900 |
| Events in quadrant D | 6,064,792 | 646,727 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35316 | 2 |
| B | 0 | 35049 | 5 |
| C | 0 | 31924 | 2 |
| D | 0 | 23268 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 1 | 140519646378024 | 140518445023278 |
| B | 1 | -1 | -1 |
| C | 1 | -1 | -1 |
| D | 1 | -1 | -1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 158 | 0 |
| D | 0 | 158 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7837 | 1532 | 19.548297% |
| B | 7836 | 2783 | 35.515569% |
| C | 7836 | 1794 | 22.894334% |
| D | 7836 | 382 | 4.874936% |
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 | 7852 | 7837 | 1359 | 1359 | 17.31% | 17.34% |  |
| B | 7850 | 7836 | 1999 | 1999 | 25.46% | 25.51% |  |
| C | 7851 | 7836 | 1730 | 1730 | 22.04% | 22.08% |  |
| D | 7851 | 7837 | 329 | 329 | 4.19% | 4.20% |  |
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 | 2871412 | 13767.34 | 845 | 822 | 208.5 |
| A | 7 | 64 | 1875172 | 8989.38 | 845 | 822 | 208.5 |
| A | 4 | 95 | 1765920 | 8465.4 | 845 | 822 | 208.5 |
| B | 4 | 206 | 6286317 | 39867.37 | 725 | 698 | 157.7 |
| B | 10 | 246 | 183376 | 1158.66 | 725 | 698 | 157.7 |
| B | 5 | 185 | 143360 | 904.85 | 725 | 698 | 157.7 |
| C | 15 | 230 | 5173984 | 24209.46 | 783 | 776 | 213.7 |
| C | 12 | 252 | 274713 | 1281.96 | 783 | 776 | 213.7 |
| C | 6 | 223 | 234191 | 1092.33 | 783 | 776 | 213.7 |
| D | 2 | 249 | 1053467 | 4346.96 | 858 | 820 | 242.2 |
| D | 8 | 240 | 260329 | 1071.65 | 858 | 820 | 242.2 |
| D | 8 | 129 | 251715 | 1036.08 | 858 | 820 | 242.2 |
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 |  |