Observation information
- date-obs: 2025-12-03
- time-obs: 05:08:53.427200000
- date-end: 2025-12-03
- time-end: 07:39:09.019100000
- obs_id: A14_025T01_9000006530
- exposure: 6871.30720061
- sourceid: NGC 3227
- observer: arijit
- ra_pnt: 155.8774
- dec_pnt: 19.86505
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_025T01_9000006530_55085cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55085cztM0_level2_quad_clean.evt
|
| Size (bytes) | 410,716,800 | 105,744,960 |
| Size | 391.7 MB
| 100.8 MB
|
| Events in quadrant A | 3,266,924 | 687,970 |
| Events in quadrant B | 3,547,716 | 737,248 |
| Events in quadrant C | 3,536,898 | 665,104 |
| Events in quadrant D | 4,293,912 | 612,622 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15099 | 2 |
| B | 0 | 15788 | 2 |
| C | 0 | 15869 | 2 |
| D | 0 | 18049 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7166 | 146 | 2.037399% |
| B | 7166 | 245 | 3.418923% |
| C | 7167 | 116 | 1.618529% |
| D | 7167 | 215 | 2.999860% |
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 | 9016 | 7166 | 1 | 1 | 0.01% | 0.01% |  |
| B | 9016 | 7166 | 32 | 32 | 0.35% | 0.45% |  |
| C | 9017 | 7167 | 27 | 27 | 0.30% | 0.38% |  |
| D | 9017 | 7168 | 104 | 104 | 1.15% | 1.45% |  |
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 | 0 | 250 | 32621 | 158.91 | 816 | 796 | 200.3 |
| A | 4 | 3 | 24532 | 118.52 | 816 | 796 | 200.3 |
| A | 13 | 254 | 23087 | 111.3 | 816 | 796 | 200.3 |
| B | 5 | 185 | 343921 | 1967.54 | 798 | 765 | 174.4 |
| B | 12 | 111 | 21500 | 118.89 | 798 | 765 | 174.4 |
| B | 11 | 111 | 20003 | 110.3 | 798 | 765 | 174.4 |
| C | 6 | 223 | 127143 | 582.4 | 790 | 779 | 217.0 |
| C | 13 | 3 | 85423 | 390.12 | 790 | 779 | 217.0 |
| C | 1 | 16 | 76078 | 347.05 | 790 | 779 | 217.0 |
| D | 11 | 129 | 401670 | 1837.08 | 779 | 747 | 218.2 |
| D | 15 | 94 | 142564 | 649.82 | 779 | 747 | 218.2 |
| D | 2 | 249 | 122284 | 556.9 | 779 | 747 | 218.2 |
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 |  |