Observation information
- date-obs: 2026-03-06
- time-obs: 03:46:02.817700000
- date-end: 2026-03-06
- time-end: 05:59:30.802700000
- obs_id: A14_060T01_9000006556
- exposure: 1720.61554813
- 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_56466cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56466cztM0_level2_quad_clean.evt
|
| Size (bytes) | 851,178,240 | 84,758,400 |
| Size | 811.7 MB
| 80.8 MB
|
| Events in quadrant A | 16,493,474 | 162,575 |
| Events in quadrant B | 3,516,403 | 726,883 |
| Events in quadrant C | 4,362,503 | 634,130 |
| Events in quadrant D | 6,574,050 | 538,049 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 53751 | 3 |
| B | 0 | 15406 | 3 |
| C | 0 | 18176 | 3 |
| D | 0 | 24503 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7236 | 5669 | 78.344389% |
| B | 7236 | 197 | 2.722499% |
| C | 7236 | 340 | 4.698729% |
| D | 7236 | 997 | 13.778331% |
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 | 7811 | 7237 | 5381 | 5381 | 68.89% | 74.35% |  |
| B | 7811 | 7239 | 7 | 7 | 0.09% | 0.10% |  |
| C | 7811 | 7239 | 193 | 193 | 2.47% | 2.67% |  |
| D | 7811 | 7238 | 795 | 795 | 10.18% | 10.98% |  |
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 | 12 | 3 | 7087593 | 64638.06 | 437 | 425 | 109.6 |
| A | 4 | 95 | 5463666 | 49827.14 | 437 | 425 | 109.6 |
| A | 12 | 194 | 886884 | 8084.89 | 437 | 425 | 109.6 |
| B | 0 | 63 | 100712 | 588.46 | 795 | 766 | 169.8 |
| B | 5 | 172 | 51473 | 298.55 | 795 | 766 | 169.8 |
| B | 0 | 213 | 44393 | 256.87 | 795 | 766 | 169.8 |
| C | 13 | 3 | 490501 | 2304.21 | 778 | 769 | 212.5 |
| C | 15 | 230 | 460641 | 2163.72 | 778 | 769 | 212.5 |
| C | 6 | 223 | 189927 | 890.0 | 778 | 769 | 212.5 |
| D | 12 | 4 | 2136270 | 10301.91 | 734 | 701 | 207.3 |
| D | 2 | 249 | 547865 | 2639.5 | 734 | 701 | 207.3 |
| D | 8 | 129 | 400952 | 1930.8 | 734 | 701 | 207.3 |
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 |  |