Observation information
- date-obs: 2025-12-04
- time-obs: 17:43:13.704900000
- date-end: 2025-12-04
- time-end: 20:04:34.681600000
- obs_id: A14_025T01_9000006530
- exposure: 6737.89006114
- 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_55107cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55107cztM0_level2_quad_clean.evt
|
| Size (bytes) | 407,623,680 | 100,500,480 |
| Size | 388.7 MB
| 95.8 MB
|
| Events in quadrant A | 3,559,988 | 652,011 |
| Events in quadrant B | 3,237,481 | 705,916 |
| Events in quadrant C | 3,668,930 | 616,552 |
| Events in quadrant D | 4,078,618 | 582,174 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15755 | 5 |
| B | 0 | 14670 | 8 |
| C | 0 | 16280 | 5 |
| D | 0 | 17267 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6985 | 151 | 2.161775% |
| B | 6983 | 89 | 1.274524% |
| C | 6985 | 213 | 3.049392% |
| D | 6987 | 239 | 3.420638% |
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 | 8482 | 6989 | 74 | 74 | 0.87% | 1.06% |  |
| B | 8482 | 6988 | 3 | 3 | 0.04% | 0.04% |  |
| C | 8482 | 6989 | 141 | 141 | 1.66% | 2.02% |  |
| D | 8482 | 6990 | 124 | 124 | 1.46% | 1.77% |  |
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 | 8 | 549269 | 2926.05 | 755 | 735 | 187.5 |
| A | 5 | 241 | 19711 | 101.22 | 755 | 735 | 187.5 |
| A | 7 | 14 | 19463 | 99.9 | 755 | 735 | 187.5 |
| B | 0 | 63 | 101043 | 621.66 | 747 | 719 | 161.4 |
| B | 5 | 172 | 62051 | 380.04 | 747 | 719 | 161.4 |
| B | 4 | 21 | 43186 | 263.15 | 747 | 719 | 161.4 |
| C | 7 | 2 | 340868 | 1692.02 | 734 | 729 | 201.0 |
| C | 12 | 252 | 224811 | 1114.69 | 734 | 729 | 201.0 |
| C | 9 | 38 | 71635 | 352.72 | 734 | 729 | 201.0 |
| D | 6 | 239 | 827649 | 3961.61 | 729 | 696 | 208.7 |
| D | 2 | 252 | 105636 | 502.73 | 729 | 696 | 208.7 |
| D | 2 | 31 | 86775 | 412.37 | 729 | 696 | 208.7 |
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 |  |