Observation information
- date-obs: 2026-03-06
- time-obs: 22:35:57.671100000
- date-end: 2026-03-07
- time-end: 01:08:05.633900000
- obs_id: A14_060T01_9000006556
- exposure: 6075.372141
- 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_56478cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56478cztM0_level2_quad_clean.evt
|
| Size (bytes) | 501,935,040 | 89,881,920 |
| Size | 478.7 MB
| 85.7 MB
|
| Events in quadrant A | 5,180,713 | 552,977 |
| Events in quadrant B | 3,453,933 | 646,088 |
| Events in quadrant C | 3,444,432 | 568,141 |
| Events in quadrant D | 5,979,916 | 486,267 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19984 | 2 |
| B | 0 | 14820 | 2 |
| C | 0 | 15077 | 3 |
| D | 0 | 22379 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 24 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6708 | 546 | 8.139535% |
| B | 6708 | 69 | 1.028623% |
| C | 6708 | 83 | 1.237329% |
| D | 6708 | 750 | 11.180680% |
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 | 9411 | 6993 | 432 | 432 | 4.59% | 6.18% |  |
| B | 9411 | 6993 | 8 | 8 | 0.09% | 0.11% |  |
| C | 9411 | 6993 | 59 | 59 | 0.63% | 0.84% |  |
| D | 9411 | 6993 | 643 | 643 | 6.83% | 9.19% |  |
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 | 889709 | 4996.73 | 719 | 702 | 177.9 |
| A | 3 | 14 | 553005 | 3104.26 | 719 | 702 | 177.9 |
| A | 7 | 64 | 513839 | 2884.13 | 719 | 702 | 177.9 |
| B | 5 | 172 | 278365 | 1757.58 | 740 | 713 | 158.0 |
| B | 0 | 63 | 107255 | 674.43 | 740 | 713 | 158.0 |
| B | 0 | 213 | 46244 | 288.22 | 740 | 713 | 158.0 |
| C | 15 | 230 | 258864 | 1307.44 | 722 | 719 | 197.4 |
| C | 12 | 252 | 123674 | 622.74 | 722 | 719 | 197.4 |
| C | 13 | 3 | 75806 | 380.3 | 722 | 719 | 197.4 |
| D | 12 | 4 | 1706041 | 8731.82 | 679 | 648 | 195.3 |
| D | 2 | 249 | 845841 | 4327.49 | 679 | 648 | 195.3 |
| D | 3 | 12 | 166788 | 850.66 | 679 | 648 | 195.3 |
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 |  |