Observation information
- date-obs: 2021-09-27
- time-obs: 06:24:07.873400000
- date-end: 2021-09-27
- time-end: 08:40:54.877200000
- obs_id: A09_108T02_9000004706
- exposure: 3363.11181299
- sourceid: M31-II
- observer: bhargavi.sg
- ra_pnt: 9.965167
- dec_pnt: 40.35314
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_108T02_9000004706_32433cztM0_level2.evt
| modeM0/AS1A09_108T02_9000004706_32433cztM0_level2_quad_clean.evt
|
| Size (bytes) | 592,485,120 | 73,560,960 |
| Size | 565.0 MB
| 70.2 MB
|
| Events in quadrant A | 3,271,254 | 445,142 |
| Events in quadrant B | 6,178,590 | 454,523 |
| Events in quadrant C | 3,578,753 | 430,857 |
| Events in quadrant D | 4,449,203 | 417,326 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14020 | 3 |
| B | 0 | 23048 | 2 |
| C | 0 | 14871 | 2 |
| D | 0 | 17704 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6870 | 64 | 0.931587% |
| B | 6870 | 234 | 3.406114% |
| C | 6870 | 239 | 3.478894% |
| D | 6870 | 323 | 4.701601% |
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 | 7735 | 6871 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7735 | 6871 | 34 | 34 | 0.44% | 0.49% |  |
| C | 7735 | 6871 | 7 | 7 | 0.09% | 0.10% |  |
| D | 7735 | 6871 | 254 | 254 | 3.28% | 3.70% |  |
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 | 13 | 6 | 10828 | 58.87 | 845 | 827 | 169.9 |
| A | 13 | 254 | 10293 | 55.72 | 845 | 827 | 169.9 |
| A | 3 | 137 | 9057 | 48.45 | 845 | 827 | 169.9 |
| B | 6 | 159 | 1862258 | 11451.56 | 835 | 813 | 162.5 |
| B | 4 | 80 | 1026730 | 6311.42 | 835 | 813 | 162.5 |
| B | 12 | 111 | 20663 | 122.12 | 835 | 813 | 162.5 |
| C | 14 | 238 | 171158 | 907.22 | 800 | 804 | 187.8 |
| C | 14 | 254 | 62077 | 326.31 | 800 | 804 | 187.8 |
| C | 0 | 10 | 56536 | 296.8 | 800 | 804 | 187.8 |
| D | 14 | 52 | 768394 | 3971.3 | 806 | 784 | 193.3 |
| D | 1 | 47 | 201285 | 1037.31 | 806 | 784 | 193.3 |
| D | 2 | 250 | 148014 | 761.71 | 806 | 784 | 193.3 |
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 |  |