Observation information
- date-obs: 2026-03-11
- time-obs: 17:16:01.767500000
- date-end: 2026-03-11
- time-end: 19:28:56.744300000
- obs_id: A14_060T01_9000006556
- exposure: 6095.75480425
- 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_56549cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56549cztM0_level2_quad_clean.evt
|
| Size (bytes) | 388,949,760 | 95,034,240 |
| Size | 370.9 MB
| 90.6 MB
|
| Events in quadrant A | 3,221,456 | 623,062 |
| Events in quadrant B | 3,792,966 | 667,290 |
| Events in quadrant C | 3,551,489 | 592,481 |
| Events in quadrant D | 3,341,289 | 554,802 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14044 | 2 |
| B | 0 | 15539 | 2 |
| C | 0 | 15244 | 2 |
| D | 0 | 14372 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 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 | 6302 | 57 | 0.904475% |
| B | 6302 | 167 | 2.649952% |
| C | 6302 | 113 | 1.793082% |
| D | 6301 | 70 | 1.110935% |
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 | 7487 | 6303 | 32 | 32 | 0.43% | 0.51% |  |
| B | 7487 | 6303 | 60 | 60 | 0.80% | 0.95% |  |
| C | 7487 | 6303 | 72 | 72 | 0.96% | 1.14% |  |
| D | 7486 | 6302 | 70 | 70 | 0.94% | 1.11% |  |
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 | 168602 | 964.67 | 694 | 677 | 174.1 |
| A | 0 | 8 | 117565 | 671.48 | 694 | 677 | 174.1 |
| A | 11 | 31 | 74076 | 421.65 | 694 | 677 | 174.1 |
| B | 4 | 206 | 306400 | 2081.39 | 690 | 667 | 146.9 |
| B | 4 | 171 | 216796 | 1471.38 | 690 | 667 | 146.9 |
| B | 10 | 247 | 94850 | 641.19 | 690 | 667 | 146.9 |
| C | 13 | 3 | 466182 | 2519.97 | 669 | 664 | 184.7 |
| C | 9 | 38 | 253049 | 1366.22 | 669 | 664 | 184.7 |
| C | 15 | 230 | 73175 | 392.52 | 669 | 664 | 184.7 |
| D | 14 | 52 | 134319 | 708.7 | 662 | 633 | 188.6 |
| D | 8 | 240 | 103624 | 545.98 | 662 | 633 | 188.6 |
| D | 2 | 120 | 98264 | 517.57 | 662 | 633 | 188.6 |
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 |  |