Observation information
- date-obs: 2026-03-09
- time-obs: 21:57:42.110600000
- date-end: 2026-03-10
- time-end: 00:06:40.083500000
- obs_id: A14_060T01_9000006556
- exposure: 3904.81667531
- 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_56522cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56522cztM0_level2_quad_clean.evt
|
| Size (bytes) | 653,575,680 | 85,271,040 |
| Size | 623.3 MB
| 81.3 MB
|
| Events in quadrant A | 10,425,188 | 396,134 |
| Events in quadrant B | 4,879,718 | 634,059 |
| Events in quadrant C | 4,267,405 | 568,373 |
| Events in quadrant D | 4,132,733 | 543,667 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 35302 | 2 |
| B | 0 | 18821 | 2 |
| C | 0 | 17172 | 2 |
| D | 0 | 16735 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6297 | 2587 | 41.083055% |
| B | 6297 | 594 | 9.433063% |
| C | 6297 | 400 | 6.352231% |
| D | 6297 | 252 | 4.001906% |
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 | 7482 | 6298 | 2502 | 2502 | 33.44% | 39.73% |  |
| B | 7482 | 6297 | 307 | 307 | 4.10% | 4.88% |  |
| C | 7482 | 6298 | 396 | 396 | 5.29% | 6.29% |  |
| D | 7482 | 6298 | 225 | 225 | 3.01% | 3.57% |  |
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 | 5949623 | 41622.18 | 576 | 562 | 142.9 |
| A | 0 | 12 | 1355660 | 9480.85 | 576 | 562 | 142.9 |
| A | 4 | 95 | 434568 | 3036.49 | 576 | 562 | 142.9 |
| B | 4 | 206 | 1873538 | 13152.98 | 673 | 648 | 142.4 |
| B | 4 | 169 | 59297 | 411.88 | 673 | 648 | 142.4 |
| B | 10 | 247 | 55400 | 384.51 | 673 | 648 | 142.4 |
| C | 15 | 230 | 1266769 | 6950.58 | 661 | 657 | 182.2 |
| C | 13 | 3 | 229347 | 1255.44 | 661 | 657 | 182.2 |
| C | 6 | 223 | 82233 | 447.83 | 661 | 657 | 182.2 |
| D | 2 | 249 | 877046 | 4624.56 | 663 | 633 | 189.5 |
| D | 11 | 176 | 181721 | 955.54 | 663 | 633 | 189.5 |
| D | 9 | 49 | 135100 | 709.54 | 663 | 633 | 189.5 |
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 |  |