Observation information
- date-obs: 2026-03-06
- time-obs: 00:37:26.844600000
- date-end: 2026-03-06
- time-end: 02:32:16.827800000
- obs_id: A14_060T01_9000006556
- exposure: 2703.80349761
- 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_56464cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56464cztM0_level2_quad_clean.evt
|
| Size (bytes) | 551,563,200 | 73,555,200 |
| Size | 526.0 MB
| 70.1 MB
|
| Events in quadrant A | 2,837,082 | 556,836 |
| Events in quadrant B | 8,804,361 | 298,977 |
| Events in quadrant C | 2,675,968 | 537,031 |
| Events in quadrant D | 5,654,135 | 434,235 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12521 | 1 |
| B | 0 | 29905 | 1 |
| C | 0 | 12170 | 1 |
| D | 0 | 20605 | 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 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5725 | 46 | 0.803493% |
| B | 5724 | 3016 | 52.690426% |
| C | 5724 | 21 | 0.366876% |
| D | 5725 | 879 | 15.353712% |
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 | 6890 | 5726 | 33 | 33 | 0.48% | 0.58% |  |
| B | 6889 | 5725 | 2779 | 2779 | 40.34% | 48.54% |  |
| C | 6889 | 5725 | 9 | 9 | 0.13% | 0.16% |  |
| D | 6890 | 5726 | 826 | 826 | 11.99% | 14.43% |  |
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 | 206 | 211596 | 1357.3 | 628 | 613 | 155.4 |
| A | 0 | 8 | 53843 | 342.44 | 628 | 613 | 155.4 |
| A | 4 | 95 | 51826 | 329.46 | 628 | 613 | 155.4 |
| B | 5 | 172 | 6807128 | 68667.81 | 463 | 448 | 99.1 |
| B | 0 | 63 | 59994 | 600.72 | 463 | 448 | 99.1 |
| B | 10 | 246 | 31312 | 311.37 | 463 | 448 | 99.1 |
| C | 12 | 252 | 91650 | 540.84 | 616 | 610 | 168.3 |
| C | 15 | 230 | 78073 | 460.19 | 616 | 610 | 168.3 |
| C | 6 | 223 | 34477 | 201.19 | 616 | 610 | 168.3 |
| D | 12 | 4 | 2684327 | 17026.81 | 558 | 531 | 157.6 |
| D | 9 | 49 | 275643 | 1745.39 | 558 | 531 | 157.6 |
| D | 2 | 249 | 254764 | 1612.93 | 558 | 531 | 157.6 |
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 |  |