Observation information
- date-obs: 2021-02-05
- time-obs: 18:06:14.896500000
- date-end: 2021-02-05
- time-end: 20:14:05.894200000
- obs_id: A10_048T03_9000004154
- exposure: 4384.58580957
- sourceid: NGC 4981
- observer: chayan
- ra_pnt: 197.2029
- dec_pnt: -6.7775
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_048T03_9000004154_28977cztM0_level2.evt
| modeM0/AS1A10_048T03_9000004154_28977cztM0_level2_quad_clean.evt
|
| Size (bytes) | 554,051,520 | 96,580,800 |
| Size | 528.4 MB
| 92.1 MB
|
| Events in quadrant A | 3,349,278 | 640,014 |
| Events in quadrant B | 3,459,485 | 659,140 |
| Events in quadrant C | 3,396,366 | 620,147 |
| Events in quadrant D | 6,147,396 | 565,689 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14048 | 2 |
| B | 0 | 14387 | 2 |
| C | 0 | 14112 | 2 |
| D | 0 | 22591 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6302 | 61 | 0.967947% |
| B | 6302 | 91 | 1.443986% |
| C | 6302 | 114 | 1.808950% |
| D | 6302 | 748 | 11.869248% |
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 | 7547 | 6303 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7547 | 6303 | 16 | 16 | 0.21% | 0.25% |  |
| C | 7547 | 6303 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7547 | 6303 | 657 | 657 | 8.71% | 10.42% |  |
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 | 12 | 210 | 36962 | 211.77 | 850 | 837 | 170.6 |
| A | 8 | 34 | 14136 | 77.96 | 850 | 837 | 170.6 |
| A | 13 | 254 | 12171 | 66.44 | 850 | 837 | 170.6 |
| B | 10 | 245 | 113193 | 697.43 | 850 | 831 | 161.1 |
| B | 12 | 111 | 19032 | 112.97 | 850 | 831 | 161.1 |
| B | 11 | 111 | 17266 | 102.01 | 850 | 831 | 161.1 |
| C | 14 | 238 | 133078 | 694.12 | 814 | 822 | 190.5 |
| C | 3 | 233 | 63783 | 330.44 | 814 | 822 | 190.5 |
| C | 2 | 114 | 15462 | 76.84 | 814 | 822 | 190.5 |
| D | 1 | 52 | 1341744 | 7264.03 | 780 | 761 | 184.6 |
| D | 7 | 80 | 909170 | 4920.8 | 780 | 761 | 184.6 |
| D | 8 | 195 | 831414 | 4499.6 | 780 | 761 | 184.6 |
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 |  |