Observation information
- date-obs: 2026-03-06
- time-obs: 21:15:07.683000000
- date-end: 2026-03-06
- time-end: 23:23:01.659700000
- obs_id: A14_060T01_9000006556
- exposure: 4863.63359857
- 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_56477cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56477cztM0_level2_quad_clean.evt
|
| Size (bytes) | 612,086,400 | 80,585,280 |
| Size | 583.7 MB
| 76.9 MB
|
| Events in quadrant A | 9,228,540 | 416,026 |
| Events in quadrant B | 3,505,261 | 609,432 |
| Events in quadrant C | 3,012,368 | 534,434 |
| Events in quadrant D | 6,432,706 | 448,727 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31587 | 1 |
| B | 0 | 14474 | 1 |
| C | 0 | 13440 | 1 |
| D | 0 | 23295 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 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 | 6175 | 1891 | 30.623482% |
| B | 6175 | 32 | 0.518219% |
| C | 6176 | 42 | 0.680052% |
| D | 6176 | 939 | 15.204016% |
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 | 7674 | 6433 | 2051 | 2051 | 26.73% | 31.88% |  |
| B | 7674 | 6455 | 4 | 4 | 0.05% | 0.06% |  |
| C | 7675 | 6456 | 27 | 27 | 0.35% | 0.42% |  |
| D | 7675 | 6456 | 863 | 863 | 11.24% | 13.37% |  |
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 | 5861378 | 37655.09 | 622 | 607 | 155.6 |
| A | 0 | 8 | 395278 | 2535.74 | 622 | 607 | 155.6 |
| A | 7 | 64 | 223562 | 1432.47 | 622 | 607 | 155.6 |
| B | 5 | 172 | 603640 | 4208.84 | 671 | 647 | 143.3 |
| B | 0 | 63 | 100283 | 695.45 | 671 | 647 | 143.3 |
| B | 0 | 213 | 39818 | 273.41 | 671 | 647 | 143.3 |
| C | 13 | 3 | 298960 | 1653.22 | 655 | 649 | 180.4 |
| C | 12 | 252 | 60380 | 331.02 | 655 | 649 | 180.4 |
| C | 12 | 254 | 54882 | 300.56 | 655 | 649 | 180.4 |
| D | 2 | 249 | 2738764 | 15748.12 | 612 | 585 | 173.9 |
| D | 12 | 4 | 767081 | 4408.36 | 612 | 585 | 173.9 |
| D | 5 | 32 | 86859 | 496.19 | 612 | 585 | 173.9 |
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 |  |