Observation information
- date-obs: 2026-03-07
- time-obs: 18:05:25.519400000
- date-end: 2026-03-07
- time-end: 20:07:23.491900000
- obs_id: A14_060T01_9000006556
- exposure: 5812.49940372
- 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_56490cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56490cztM0_level2_quad_clean.evt
|
| Size (bytes) | 405,469,440 | 90,630,720 |
| Size | 386.7 MB
| 86.4 MB
|
| Events in quadrant A | 3,965,648 | 590,341 |
| Events in quadrant B | 3,007,351 | 645,641 |
| Events in quadrant C | 3,959,441 | 543,266 |
| Events in quadrant D | 3,592,783 | 530,832 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16300 | 1 |
| B | 0 | 13396 | 1 |
| C | 0 | 16436 | 1 |
| D | 0 | 15012 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6223 | 125 | 2.008677% |
| B | 6222 | 50 | 0.803600% |
| C | 6222 | 392 | 6.300225% |
| D | 6223 | 104 | 1.671220% |
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 | 7318 | 6224 | 80 | 80 | 1.09% | 1.29% |  |
| B | 7317 | 6223 | 24 | 24 | 0.33% | 0.39% |  |
| C | 7317 | 6223 | 385 | 385 | 5.26% | 6.19% |  |
| D | 7318 | 6224 | 91 | 91 | 1.24% | 1.46% |  |
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 | 4 | 95 | 781223 | 4679.04 | 662 | 643 | 166.8 |
| A | 0 | 8 | 337501 | 2019.23 | 662 | 643 | 166.8 |
| A | 12 | 3 | 95453 | 568.32 | 662 | 643 | 166.8 |
| B | 0 | 63 | 115599 | 814.27 | 664 | 643 | 141.2 |
| B | 10 | 247 | 77262 | 542.72 | 664 | 643 | 141.2 |
| B | 4 | 171 | 67147 | 471.07 | 664 | 643 | 141.2 |
| C | 15 | 230 | 1077130 | 6267.04 | 621 | 616 | 171.8 |
| C | 13 | 3 | 263280 | 1529.13 | 621 | 616 | 171.8 |
| C | 6 | 223 | 98624 | 570.56 | 621 | 616 | 171.8 |
| D | 3 | 12 | 427805 | 2338.89 | 635 | 606 | 182.6 |
| D | 2 | 249 | 148058 | 807.29 | 635 | 606 | 182.6 |
| D | 11 | 176 | 120454 | 656.16 | 635 | 606 | 182.6 |
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 |  |