Observation information
- date-obs: 2019-05-08
- time-obs: 09:33:10.305200000
- date-end: 2019-05-08
- time-end: 12:00:28.305300000
- obs_id: A05_175T01_9000002894
- exposure: 3317.56685038
- sourceid: Mkn 478
- observer: samuzal_astrosat
- ra_pnt: 220.5308
- dec_pnt: 35.43972
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_175T01_9000002894_19513cztM0_level2.evt
| modeM0/AS1A05_175T01_9000002894_19513cztM0_level2_quad_clean.evt
|
| Size (bytes) | 678,430,080 | 75,372,480 |
| Size | 647.0 MB
| 71.9 MB
|
| Events in quadrant A | 3,437,190 | 512,395 |
| Events in quadrant B | 3,481,681 | 513,698 |
| Events in quadrant C | 3,532,505 | 484,135 |
| Events in quadrant D | 9,644,163 | 306,957 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14075 | 2 |
| B | 0 | 14152 | 2 |
| C | 0 | 14289 | 2 |
| D | 0 | 32990 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6650 | 110 | 1.654135% |
| B | 6650 | 125 | 1.879699% |
| C | 6650 | 159 | 2.390977% |
| D | 6650 | 2611 | 39.263158% |
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 | 7820 | 6650 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7820 | 6650 | 5 | 5 | 0.06% | 0.08% |  |
| C | 7820 | 6650 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7820 | 6650 | 2400 | 2400 | 30.69% | 36.09% |  |
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 | 8191 | 41.19 | 892 | 874 | 177.6 |
| A | 0 | 226 | 7730 | 38.59 | 892 | 874 | 177.6 |
| A | 3 | 137 | 6970 | 34.32 | 892 | 874 | 177.6 |
| B | 4 | 171 | 25240 | 146.67 | 877 | 858 | 166.2 |
| B | 12 | 111 | 19984 | 115.05 | 877 | 858 | 166.2 |
| B | 11 | 111 | 17627 | 100.87 | 877 | 858 | 166.2 |
| C | 14 | 238 | 133501 | 686.23 | 839 | 847 | 193.3 |
| C | 3 | 233 | 92692 | 475.12 | 839 | 847 | 193.3 |
| C | 9 | 221 | 28762 | 144.41 | 839 | 847 | 193.3 |
| D | 7 | 238 | 4472970 | 25842.3 | 717 | 696 | 173.1 |
| D | 1 | 52 | 1828558 | 10562.0 | 717 | 696 | 173.1 |
| D | 12 | 218 | 478780 | 2762.53 | 717 | 696 | 173.1 |
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 |  |