Observation information
- date-obs: 2020-03-17
- time-obs: 20:41:23.305600000
- date-end: 2020-03-17
- time-end: 22:52:44.303300000
- obs_id: A07_067T01_9000003578
- exposure: 4872.19978631
- 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_24167cztM0_level2.evt
| modeM0/AS1A07_067T01_9000003578_24167cztM0_level2_quad_clean.evt
|
| Size (bytes) | 747,889,920 | 96,719,040 |
| Size | 713.2 MB
| 92.2 MB
|
| Events in quadrant A | 3,167,087 | 657,656 |
| Events in quadrant B | 3,237,624 | 674,488 |
| Events in quadrant C | 3,364,200 | 649,720 |
| Events in quadrant D | 12,422,439 | 473,872 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13890 | 2 |
| B | 0 | 13996 | 2 |
| C | 0 | 14357 | 2 |
| D | 0 | 41603 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6774 | 25 | 0.369058% |
| B | 6774 | 47 | 0.693829% |
| C | 6774 | 100 | 1.476233% |
| D | 6774 | 3500 | 51.668143% |
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 | 7684 | 6775 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7684 | 6775 | 1 | 1 | 0.01% | 0.01% |  |
| C | 7684 | 6775 | 16 | 16 | 0.21% | 0.24% |  |
| D | 7683 | 6773 | 3128 | 3128 | 40.71% | 46.18% |  |
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 | 10932 | 61.1 | 820 | 801 | 165.8 |
| A | 3 | 137 | 7436 | 40.02 | 820 | 801 | 165.8 |
| A | 0 | 226 | 6924 | 36.93 | 820 | 801 | 165.8 |
| B | 12 | 111 | 19382 | 117.71 | 823 | 802 | 157.8 |
| B | 11 | 111 | 16957 | 102.35 | 823 | 802 | 157.8 |
| B | 14 | 111 | 14864 | 89.09 | 823 | 802 | 157.8 |
| C | 14 | 238 | 125079 | 664.18 | 795 | 799 | 187.1 |
| C | 10 | 23 | 77819 | 411.61 | 795 | 799 | 187.1 |
| C | 10 | 9 | 52873 | 278.29 | 795 | 799 | 187.1 |
| D | 7 | 238 | 9761790 | 64380.38 | 619 | 599 | 151.6 |
| D | 8 | 195 | 252493 | 1661.38 | 619 | 599 | 151.6 |
| D | 1 | 52 | 47262 | 307.77 | 619 | 599 | 151.6 |
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 |  |