Observation information
- date-obs: 2026-03-10
- time-obs: 18:44:21.945000000
- date-end: 2026-03-10
- time-end: 20:58:28.918300000
- obs_id: A14_060T01_9000006556
- exposure: 6079.55008805
- 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_56535cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56535cztM0_level2_quad_clean.evt
|
| Size (bytes) | 458,331,840 | 96,269,760 |
| Size | 437.1 MB
| 91.8 MB
|
| Events in quadrant A | 4,359,919 | 618,662 |
| Events in quadrant B | 3,806,801 | 692,499 |
| Events in quadrant C | 4,026,577 | 600,888 |
| Events in quadrant D | 4,274,291 | 555,504 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17387 | 2 |
| B | 0 | 15644 | 3 |
| C | 0 | 16524 | 2 |
| D | 0 | 17165 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6415 | 331 | 5.159782% |
| B | 6414 | 115 | 1.792953% |
| C | 6414 | 250 | 3.897724% |
| D | 6414 | 245 | 3.819769% |
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 | 7615 | 6416 | 289 | 289 | 3.80% | 4.50% |  |
| B | 7614 | 6415 | 57 | 57 | 0.75% | 0.89% |  |
| C | 7614 | 6415 | 236 | 236 | 3.10% | 3.68% |  |
| D | 7614 | 6415 | 222 | 222 | 2.92% | 3.46% |  |
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 | 249 | 1233106 | 7112.28 | 696 | 677 | 173.3 |
| A | 4 | 95 | 311810 | 1795.53 | 696 | 677 | 173.3 |
| A | 4 | 3 | 30672 | 173.1 | 696 | 677 | 173.3 |
| B | 4 | 171 | 332681 | 2201.71 | 706 | 682 | 150.8 |
| B | 0 | 63 | 192823 | 1274.22 | 706 | 682 | 150.8 |
| B | 10 | 247 | 191495 | 1265.41 | 706 | 682 | 150.8 |
| C | 12 | 252 | 678908 | 3635.15 | 678 | 672 | 186.6 |
| C | 15 | 230 | 345358 | 1847.42 | 678 | 672 | 186.6 |
| C | 6 | 223 | 137176 | 731.62 | 678 | 672 | 186.6 |
| D | 2 | 249 | 924140 | 4795.49 | 667 | 638 | 192.6 |
| D | 8 | 240 | 181279 | 938.02 | 667 | 638 | 192.6 |
| D | 8 | 129 | 118552 | 612.29 | 667 | 638 | 192.6 |
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 |  |