Observation information
- date-obs: 2021-09-27
- time-obs: 09:57:27.880600000
- date-end: 2021-09-27
- time-end: 12:09:13.884600000
- obs_id: A09_108T02_9000004706
- exposure: 3201.77213322
- 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_32436cztM0_level2.evt
| modeM0/AS1A09_108T02_9000004706_32436cztM0_level2_quad_clean.evt
|
| Size (bytes) | 596,148,480 | 71,959,680 |
| Size | 568.5 MB
| 68.6 MB
|
| Events in quadrant A | 3,394,479 | 449,131 |
| Events in quadrant B | 5,972,922 | 456,471 |
| Events in quadrant C | 4,101,441 | 394,469 |
| Events in quadrant D | 4,148,664 | 428,361 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14305 | 3 |
| B | 0 | 22475 | 2 |
| C | 0 | 16361 | 2 |
| D | 0 | 16829 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6449 | 66 | 1.023414% |
| B | 6449 | 318 | 4.930997% |
| C | 6449 | 945 | 14.653435% |
| D | 6449 | 48 | 0.744301% |
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 | 7619 | 6450 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7619 | 6450 | 76 | 76 | 1.00% | 1.18% |  |
| C | 7619 | 6450 | 25 | 25 | 0.33% | 0.39% |  |
| D | 7619 | 6450 | 7 | 7 | 0.09% | 0.11% |  |
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 | 254 | 10975 | 58.16 | 878 | 863 | 173.9 |
| A | 3 | 137 | 8592 | 44.46 | 878 | 863 | 173.9 |
| A | 0 | 226 | 7386 | 37.52 | 878 | 863 | 173.9 |
| B | 6 | 159 | 1639314 | 10087.17 | 860 | 840 | 162.4 |
| B | 4 | 80 | 955048 | 5874.53 | 860 | 840 | 162.4 |
| B | 12 | 111 | 19609 | 115.55 | 860 | 840 | 162.4 |
| C | 14 | 238 | 351304 | 1938.58 | 784 | 791 | 180.8 |
| C | 14 | 254 | 300746 | 1658.96 | 784 | 791 | 180.8 |
| C | 3 | 233 | 112918 | 620.14 | 784 | 791 | 180.8 |
| D | 8 | 195 | 778208 | 3956.67 | 840 | 820 | 196.5 |
| D | 2 | 250 | 70415 | 354.21 | 840 | 820 | 196.5 |
| D | 12 | 233 | 45530 | 227.56 | 840 | 820 | 196.5 |
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 |  |