Observation information
- date-obs: 2026-03-07
- time-obs: 03:57:42.625600000
- date-end: 2026-03-07
- time-end: 06:15:10.611000000
- obs_id: A14_060T01_9000006556
- exposure: 6320.93364894
- 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_56481cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56481cztM0_level2_quad_clean.evt
|
| Size (bytes) | 594,892,800 | 102,720,960 |
| Size | 567.3 MB
| 98.0 MB
|
| Events in quadrant A | 6,974,775 | 600,974 |
| Events in quadrant B | 5,207,421 | 693,989 |
| Events in quadrant C | 3,634,501 | 680,659 |
| Events in quadrant D | 5,606,791 | 600,002 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26044 | 2 |
| B | 0 | 20369 | 3 |
| C | 0 | 16581 | 2 |
| D | 0 | 22073 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7685 | 1404 | 18.269356% |
| B | 7684 | 1002 | 13.040083% |
| C | 7684 | 309 | 4.021343% |
| D | 7684 | 746 | 9.708485% |
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 | 7780 | 7687 | 861 | 861 | 11.07% | 11.20% |  |
| B | 7778 | 7685 | 330 | 330 | 4.24% | 4.29% |  |
| C | 7779 | 7686 | 11 | 11 | 0.14% | 0.14% |  |
| D | 7779 | 7686 | 367 | 367 | 4.72% | 4.77% |  |
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 | 1643182 | 8230.92 | 810 | 785 | 199.5 |
| A | 12 | 3 | 1427565 | 7150.35 | 810 | 785 | 199.5 |
| A | 7 | 64 | 222329 | 1110.27 | 810 | 785 | 199.5 |
| B | 5 | 172 | 1494361 | 8193.62 | 843 | 811 | 182.3 |
| B | 0 | 63 | 234162 | 1280.16 | 843 | 811 | 182.3 |
| B | 10 | 247 | 42529 | 228.86 | 843 | 811 | 182.3 |
| C | 12 | 252 | 73197 | 306.75 | 866 | 857 | 235.8 |
| C | 12 | 249 | 49146 | 204.77 | 866 | 857 | 235.8 |
| C | 6 | 223 | 42347 | 175.94 | 866 | 857 | 235.8 |
| D | 2 | 249 | 926485 | 3983.53 | 833 | 795 | 232.4 |
| D | 12 | 4 | 509972 | 2191.15 | 833 | 795 | 232.4 |
| D | 3 | 12 | 221008 | 947.64 | 833 | 795 | 232.4 |
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 |  |