Observation information
- date-obs: 2020-03-17
- time-obs: 11:59:43.307400000
- date-end: 2020-03-17
- time-end: 14:11:07.305800000
- obs_id: A07_067T01_9000003578
- exposure: 3821.29040666
- sourceid: Mrk 493
- observer: samuzal_astrosat
- ra_pnt: 239.7901
- dec_pnt: 35.02988
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A07_067T01_9000003578_24162cztM0_level2.evt
| modeM0/AS1A07_067T01_9000003578_24162cztM0_level2_quad_clean.evt
|
| Size (bytes) | 528,868,800 | 85,080,960 |
| Size | 504.4 MB
| 81.1 MB
|
| Events in quadrant A | 3,708,627 | 516,480 |
| Events in quadrant B | 3,750,435 | 522,699 |
| Events in quadrant C | 4,282,663 | 504,940 |
| Events in quadrant D | 3,760,240 | 504,746 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 2 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15693 | 4 |
| B | 0 | 15804 | 4 |
| C | 0 | 17416 | 4 |
| D | 0 | 15998 | 4 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7578 | 163 | 2.150963% |
| B | 7578 | 166 | 2.190552% |
| C | 7578 | 366 | 4.829770% |
| D | 7578 | 131 | 1.728688% |
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 | 7863 | 7580 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7863 | 7580 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7863 | 7579 | 100 | 100 | 1.27% | 1.32% |  |
| D | 7863 | 7580 | 3 | 3 | 0.04% | 0.04% |  |
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 | 12502 | 60.15 | 960 | 940 | 192.2 |
| A | 3 | 137 | 8516 | 39.41 | 960 | 940 | 192.2 |
| A | 0 | 226 | 8490 | 39.28 | 960 | 940 | 192.2 |
| B | 12 | 111 | 21933 | 114.79 | 947 | 923 | 183.0 |
| B | 11 | 111 | 19826 | 103.28 | 947 | 923 | 183.0 |
| B | 4 | 52 | 19097 | 99.3 | 947 | 923 | 183.0 |
| C | 2 | 16 | 541575 | 2546.04 | 906 | 907 | 212.4 |
| C | 14 | 238 | 143452 | 671.25 | 906 | 907 | 212.4 |
| C | 3 | 233 | 44593 | 205.72 | 906 | 907 | 212.4 |
| D | 8 | 195 | 140654 | 613.53 | 935 | 905 | 227.8 |
| D | 2 | 234 | 31875 | 135.96 | 935 | 905 | 227.8 |
| D | 1 | 52 | 23566 | 99.48 | 935 | 905 | 227.8 |
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 |  |