Observation information
- date-obs: 2026-03-08
- time-obs: 14:58:23.357300000
- date-end: 2026-03-08
- time-end: 16:55:47.332800000
- obs_id: A14_060T01_9000006556
- exposure: 5810.48660314
- 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_56502cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56502cztM0_level2_quad_clean.evt
|
| Size (bytes) | 385,695,360 | 87,854,400 |
| Size | 367.8 MB
| 83.8 MB
|
| Events in quadrant A | 3,243,739 | 578,362 |
| Events in quadrant B | 3,578,832 | 606,592 |
| Events in quadrant C | 3,629,021 | 532,922 |
| Events in quadrant D | 3,346,691 | 513,128 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13861 | 1 |
| B | 0 | 14935 | 1 |
| C | 0 | 15379 | 1 |
| D | 0 | 14397 | 7 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6149 | 32 | 0.520410% |
| B | 6149 | 232 | 3.772971% |
| C | 6150 | 287 | 4.666667% |
| D | 6149 | 145 | 2.358107% |
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 | 7044 | 6150 | 15 | 15 | 0.21% | 0.24% |  |
| B | 7044 | 6150 | 167 | 167 | 2.37% | 2.72% |  |
| C | 7045 | 6151 | 279 | 279 | 3.96% | 4.54% |  |
| D | 7044 | 6150 | 112 | 112 | 1.59% | 1.82% |  |
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 | 7 | 64 | 156260 | 952.28 | 655 | 640 | 163.4 |
| A | 3 | 14 | 128218 | 780.69 | 655 | 640 | 163.4 |
| A | 4 | 95 | 115137 | 700.64 | 655 | 640 | 163.4 |
| B | 0 | 213 | 461097 | 3292.24 | 646 | 623 | 139.9 |
| B | 4 | 206 | 402860 | 2875.86 | 646 | 623 | 139.9 |
| B | 4 | 171 | 36694 | 257.9 | 646 | 623 | 139.9 |
| C | 12 | 252 | 609390 | 3534.59 | 620 | 614 | 172.2 |
| C | 3 | 248 | 324326 | 1879.49 | 620 | 614 | 172.2 |
| C | 13 | 3 | 253967 | 1470.98 | 620 | 614 | 172.2 |
| D | 2 | 249 | 425309 | 2377.89 | 625 | 597 | 178.6 |
| D | 3 | 12 | 165129 | 921.19 | 625 | 597 | 178.6 |
| D | 2 | 31 | 76892 | 427.16 | 625 | 597 | 178.6 |
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 |  |