Observation information
- date-obs: 2025-11-28
- time-obs: 11:07:40.944500000
- date-end: 2025-11-28
- time-end: 13:09:23.076700000
- obs_id: A14_025T01_9000006530
- exposure: 133.571688294
- 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_55014cztM0_level2.fits
| modeM0/AS1A14_025T01_9000006530_55014cztM0_level2_quad_clean.evt
|
| Size (bytes) | 864,504,000 | 82,368,000 |
| Size | 824.5 MB
| 78.6 MB
|
| Events in quadrant A | 3,600,071 | 679,094 |
| Events in quadrant B | 3,649,980 | 739,201 |
| Events in quadrant C | 5,972,034 | 555,928 |
| Events in quadrant D | 18,211,312 | 11,343 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16158 | 0 |
| B | 0 | 16106 | 1 |
| C | 0 | 23191 | 19 |
| D | 0 | 59133 | 9 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7303 | 137 | 1.875941% |
| B | 7302 | 99 | 1.355793% |
| C | 7300 | 1089 | 14.917808% |
| D | 7302 | 7190 | 98.466174% |
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 | 7303 | 7303 | 66 | 66 | 0.90% | 0.90% |  |
| B | 7302 | 7302 | 45 | 45 | 0.62% | 0.62% |  |
| C | 7303 | 7302 | 1070 | 1070 | 14.65% | 14.65% |  |
| D | 7302 | 7301 | 6603 | 6603 | 90.43% | 90.44% |  |
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 | 15 | 32 | 371827 | 1903.33 | 794 | 772 | 194.9 |
| A | 13 | 248 | 107586 | 547.9 | 794 | 772 | 194.9 |
| A | 4 | 3 | 14301 | 69.4 | 794 | 772 | 194.9 |
| B | 5 | 185 | 287267 | 1658.46 | 790 | 761 | 172.8 |
| B | 5 | 172 | 62593 | 357.92 | 790 | 761 | 172.8 |
| B | 2 | 249 | 58257 | 332.82 | 790 | 761 | 172.8 |
| C | 4 | 5 | 2678413 | 13593.25 | 722 | 716 | 197.0 |
| C | 15 | 193 | 184777 | 934.38 | 722 | 716 | 197.0 |
| C | 6 | 223 | 103169 | 520.1 | 722 | 716 | 197.0 |
| D | 15 | 94 | 17115919 | 356185.76 | 161 | 153 | 48.1 |
| D | 2 | 172 | 150286 | 3124.33 | 161 | 153 | 48.1 |
| D | 11 | 129 | 148577 | 3088.76 | 161 | 153 | 48.1 |
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 |  |