Observation information
- date-obs: 2026-03-07
- time-obs: 02:09:22.638800000
- date-end: 2026-03-07
- time-end: 04:32:08.624200000
- obs_id: A14_060T01_9000006556
- exposure: 4849.30189186
- 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_56480cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56480cztM0_level2_quad_clean.evt
|
| Size (bytes) | 627,232,320 | 93,749,760 |
| Size | 598.2 MB
| 89.4 MB
|
| Events in quadrant A | 10,461,490 | 467,185 |
| Events in quadrant B | 4,455,196 | 686,113 |
| Events in quadrant C | 3,579,680 | 618,534 |
| Events in quadrant D | 4,181,720 | 581,776 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35861 | 2 |
| B | 0 | 17770 | 3 |
| C | 0 | 15848 | 2 |
| D | 0 | 17261 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6958 | 2431 | 34.938201% |
| B | 6957 | 435 | 6.252695% |
| C | 6957 | 266 | 3.823487% |
| D | 6957 | 205 | 2.946672% |
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 | 7773 | 6959 | 2087 | 2087 | 26.85% | 29.99% |  |
| B | 7772 | 6958 | 218 | 218 | 2.80% | 3.13% |  |
| C | 7772 | 6958 | 135 | 135 | 1.74% | 1.94% |  |
| D | 7772 | 6958 | 104 | 104 | 1.34% | 1.49% |  |
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 | 2698120 | 16184.64 | 676 | 659 | 166.7 |
| A | 7 | 64 | 2601245 | 15603.39 | 676 | 659 | 166.7 |
| A | 12 | 3 | 1666260 | 9993.53 | 676 | 659 | 166.7 |
| B | 5 | 172 | 1094954 | 6694.3 | 760 | 731 | 163.5 |
| B | 0 | 63 | 194581 | 1185.95 | 760 | 731 | 163.5 |
| B | 10 | 247 | 40547 | 243.59 | 760 | 731 | 163.5 |
| C | 12 | 249 | 286426 | 1375.5 | 752 | 744 | 207.7 |
| C | 11 | 227 | 207118 | 993.65 | 752 | 744 | 207.7 |
| C | 12 | 252 | 73598 | 350.78 | 752 | 744 | 207.7 |
| D | 2 | 249 | 462171 | 2190.7 | 748 | 715 | 210.6 |
| D | 12 | 4 | 230220 | 1089.54 | 748 | 715 | 210.6 |
| D | 3 | 12 | 138503 | 654.13 | 748 | 715 | 210.6 |
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 |  |