Observation information
- date-obs: 2026-03-07
- time-obs: 09:32:01.587000000
- date-end: 2026-03-07
- time-end: 18:26:02.516900000
- obs_id: A14_060T01_9000006556
- exposure: 27362.2917013
- 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_56488cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56488cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,078,812,800 | 413,432,640 |
| Size | 1.9 GB
| 394.3 MB
|
| Events in quadrant A | 20,649,994 | 2,643,466 |
| Events in quadrant B | 15,404,311 | 2,951,060 |
| Events in quadrant C | 17,490,458 | 2,511,016 |
| Events in quadrant D | 21,138,700 | 2,394,896 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 81811 | 4 |
| B | 0 | 66095 | 4 |
| C | 0 | 74030 | 4 |
| D | 0 | 82918 | 4 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27 | 0 |
| B | 0 | 27 | 0 |
| C | 0 | 27 | 0 |
| D | 0 | 27 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 594 | 0 |
| B | 0 | 594 | 0 |
| C | 0 | 594 | 0 |
| D | 0 | 594 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 29336 | 1618 | 5.515408% |
| B | 29336 | 420 | 1.431688% |
| C | 29336 | 1772 | 6.040360% |
| D | 29336 | 1548 | 5.276793% |
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 | 32041 | 29340 | 1152 | 1152 | 3.60% | 3.93% |  |
| B | 32041 | 29340 | 92 | 92 | 0.29% | 0.31% |  |
| C | 32041 | 29340 | 1544 | 1544 | 4.82% | 5.26% |  |
| D | 32041 | 29340 | 1256 | 1256 | 3.92% | 4.28% |  |
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 | 2031485 | 2610.61 | 3109 | 3031 | 777.0 |
| A | 0 | 8 | 1424336 | 1829.21 | 3109 | 3031 | 777.0 |
| A | 12 | 3 | 1227981 | 1576.5 | 3109 | 3031 | 777.0 |
| B | 5 | 172 | 1082270 | 1624.32 | 3140 | 3027 | 664.4 |
| B | 0 | 63 | 427322 | 638.59 | 3140 | 3027 | 664.4 |
| B | 0 | 153 | 218608 | 324.46 | 3140 | 3027 | 664.4 |
| C | 15 | 230 | 4091870 | 5066.13 | 2973 | 2949 | 807.1 |
| C | 12 | 252 | 467254 | 575.27 | 2973 | 2949 | 807.1 |
| C | 6 | 223 | 321955 | 395.25 | 2973 | 2949 | 807.1 |
| D | 2 | 249 | 2692091 | 3154.31 | 3001 | 2867 | 852.6 |
| D | 12 | 4 | 2122887 | 2486.66 | 3001 | 2867 | 852.6 |
| D | 11 | 176 | 1205750 | 1410.91 | 3001 | 2867 | 852.6 |
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 |  |