Observation information
- date-obs: 2026-03-08
- time-obs: 07:51:26.410200000
- date-end: 2026-03-08
- time-end: 10:03:22.394900000
- obs_id: A14_060T01_9000006556
- exposure: 7663.62637067
- 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_56498cztM0_level2.fits
| modeM0/AS1A14_060T01_9000006556_56498cztM0_level2_quad_clean.evt
|
| Size (bytes) | 492,886,080 | 114,408,000 |
| Size | 470.1 MB
| 109.1 MB
|
| Events in quadrant A | 4,768,071 | 738,850 |
| Events in quadrant B | 4,568,895 | 795,849 |
| Events in quadrant C | 4,111,506 | 710,535 |
| Events in quadrant D | 4,181,763 | 668,753 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19323 | 0 |
| B | 0 | 19009 | 0 |
| C | 0 | 17930 | 0 |
| D | 0 | 17818 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 158 | 0 |
| D | 0 | 158 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7916 | 41 | 0.517938% |
| B | 7915 | 193 | 2.438408% |
| C | 7916 | 134 | 1.692774% |
| D | 7916 | 40 | 0.505306% |
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 | 7916 | 7916 | 39 | 39 | 0.49% | 0.49% |  |
| B | 7915 | 7915 | 111 | 111 | 1.40% | 1.40% |  |
| C | 7916 | 7916 | 91 | 91 | 1.15% | 1.15% |  |
| D | 7916 | 7916 | 38 | 38 | 0.48% | 0.48% |  |
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 | 3 | 14 | 877385 | 4073.14 | 866 | 843 | 215.2 |
| A | 0 | 8 | 129273 | 596.79 | 866 | 843 | 215.2 |
| A | 8 | 249 | 103052 | 474.95 | 866 | 843 | 215.2 |
| B | 4 | 206 | 768645 | 4167.05 | 855 | 820 | 184.3 |
| B | 0 | 213 | 67703 | 362.98 | 855 | 820 | 184.3 |
| B | 10 | 247 | 65514 | 351.1 | 855 | 820 | 184.3 |
| C | 15 | 230 | 270278 | 1169.68 | 841 | 832 | 230.4 |
| C | 6 | 223 | 189721 | 819.98 | 841 | 832 | 230.4 |
| C | 12 | 252 | 106834 | 460.16 | 841 | 832 | 230.4 |
| D | 2 | 249 | 339104 | 1424.73 | 841 | 803 | 237.4 |
| D | 3 | 12 | 154799 | 648.54 | 841 | 803 | 237.4 |
| D | 5 | 173 | 86950 | 362.8 | 841 | 803 | 237.4 |
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 |  |