Observation information
- date-obs: 2026-03-08
- time-obs: 02:40:30.450200000
- date-end: 2026-03-08
- time-end: 04:48:13.433100000
- obs_id: A14_060T01_9000006556
- exposure: 6540.61234987
- 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_56495cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56495cztM0_level2_quad_clean.evt
|
| Size (bytes) | 489,283,200 | 99,840,960 |
| Size | 466.6 MB
| 95.2 MB
|
| Events in quadrant A | 4,708,140 | 631,035 |
| Events in quadrant B | 3,879,914 | 711,895 |
| Events in quadrant C | 4,779,628 | 605,603 |
| Events in quadrant D | 4,192,278 | 580,375 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19060 | 1 |
| B | 0 | 16440 | 1 |
| C | 0 | 19337 | 1 |
| D | 0 | 17328 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7093 | 495 | 6.978711% |
| B | 7093 | 252 | 3.552799% |
| C | 7092 | 571 | 8.051325% |
| D | 7093 | 323 | 4.553785% |
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 | 7663 | 7093 | 301 | 301 | 3.93% | 4.24% |  |
| B | 7663 | 7093 | 53 | 53 | 0.69% | 0.75% |  |
| C | 7662 | 7093 | 357 | 357 | 4.66% | 5.03% |  |
| D | 7663 | 7093 | 152 | 152 | 1.98% | 2.14% |  |
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 | 12 | 3 | 976177 | 5115.95 | 772 | 750 | 190.7 |
| A | 0 | 8 | 203562 | 1063.71 | 772 | 750 | 190.7 |
| A | 12 | 194 | 146972 | 766.91 | 772 | 750 | 190.7 |
| B | 4 | 206 | 488823 | 2901.73 | 780 | 752 | 168.2 |
| B | 5 | 172 | 59423 | 348.82 | 780 | 752 | 168.2 |
| B | 0 | 213 | 57356 | 336.53 | 780 | 752 | 168.2 |
| C | 13 | 3 | 1054999 | 5093.41 | 754 | 747 | 207.0 |
| C | 6 | 223 | 538519 | 2598.14 | 754 | 747 | 207.0 |
| C | 12 | 252 | 153208 | 736.58 | 754 | 747 | 207.0 |
| D | 11 | 176 | 317940 | 1487.55 | 760 | 727 | 213.2 |
| D | 2 | 249 | 240488 | 1124.34 | 760 | 727 | 213.2 |
| D | 8 | 160 | 230541 | 1077.7 | 760 | 727 | 213.2 |
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 |  |