Observation information
- date-obs: 2021-02-05
- time-obs: 02:32:54.909500000
- date-end: 2021-02-05
- time-end: 04:36:19.907500000
- obs_id: A10_048T03_9000004154
- exposure: 4293.56328495
- 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_28967cztM0_level2.evt
| modeM0/AS1A10_048T03_9000004154_28967cztM0_level2_quad_clean.evt
|
| Size (bytes) | 492,563,520 | 89,513,280 |
| Size | 469.7 MB
| 85.4 MB
|
| Events in quadrant A | 3,141,041 | 569,054 |
| Events in quadrant B | 3,313,666 | 584,185 |
| Events in quadrant C | 3,280,882 | 558,637 |
| Events in quadrant D | 4,733,736 | 538,784 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13521 | 1 |
| B | 0 | 13979 | 1 |
| C | 0 | 13797 | 1 |
| D | 0 | 18592 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6595 | 41 | 0.621683% |
| B | 6595 | 82 | 1.243366% |
| C | 6596 | 118 | 1.788963% |
| D | 6596 | 191 | 2.895694% |
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 | 7405 | 6597 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7405 | 6597 | 11 | 11 | 0.15% | 0.17% |  |
| C | 7405 | 6597 | 10 | 10 | 0.14% | 0.15% |  |
| D | 7405 | 6597 | 85 | 85 | 1.15% | 1.29% |  |
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 | 11362 | 64.64 | 810 | 793 | 163.5 |
| A | 13 | 6 | 10859 | 61.57 | 810 | 793 | 163.5 |
| A | 3 | 137 | 7948 | 43.76 | 810 | 793 | 163.5 |
| B | 5 | 172 | 48099 | 303.8 | 806 | 787 | 155.7 |
| B | 10 | 245 | 37767 | 237.46 | 806 | 787 | 155.7 |
| B | 10 | 246 | 26545 | 165.4 | 806 | 787 | 155.7 |
| C | 14 | 238 | 135690 | 732.51 | 779 | 785 | 184.2 |
| C | 0 | 207 | 47637 | 254.4 | 779 | 785 | 184.2 |
| C | 3 | 233 | 22522 | 118.03 | 779 | 785 | 184.2 |
| D | 8 | 195 | 906670 | 4837.46 | 781 | 762 | 187.3 |
| D | 1 | 52 | 751525 | 4009.0 | 781 | 762 | 187.3 |
| D | 13 | 104 | 64500 | 340.35 | 781 | 762 | 187.3 |
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 |  |