Observation information
- date-obs: 2020-03-18
- time-obs: 20:45:24.289200000
- date-end: 2020-03-18
- time-end: 23:13:37.286000000
- obs_id: A07_067T01_9000003578
- exposure: 4936.50283791
- 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_24182cztM0_level2.evt
| modeM0/AS1A07_067T01_9000003578_24182cztM0_level2_quad_clean.evt
|
| Size (bytes) | 607,547,520 | 100,244,160 |
| Size | 579.4 MB
| 95.6 MB
|
| Events in quadrant A | 3,349,867 | 645,175 |
| Events in quadrant B | 3,440,508 | 664,738 |
| Events in quadrant C | 3,734,336 | 633,245 |
| Events in quadrant D | 7,395,813 | 600,200 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14587 | 2 |
| B | 0 | 14790 | 2 |
| C | 0 | 15773 | 2 |
| D | 0 | 27077 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7068 | 39 | 0.551783% |
| B | 7069 | 68 | 0.961947% |
| C | 7069 | 197 | 2.786816% |
| D | 7068 | 1100 | 15.563101% |
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 | 8893 | 7070 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8894 | 7070 | 2 | 2 | 0.02% | 0.03% |  |
| C | 8894 | 7071 | 69 | 69 | 0.78% | 0.98% |  |
| D | 8893 | 7070 | 878 | 878 | 9.87% | 12.42% |  |
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 | 13 | 254 | 11409 | 59.95 | 868 | 850 | 176.1 |
| A | 3 | 137 | 7907 | 40.07 | 868 | 850 | 176.1 |
| A | 0 | 226 | 7289 | 36.56 | 868 | 850 | 176.1 |
| B | 12 | 111 | 20380 | 116.3 | 871 | 848 | 167.9 |
| B | 11 | 111 | 18055 | 102.45 | 871 | 848 | 167.9 |
| B | 0 | 245 | 17092 | 96.72 | 871 | 848 | 167.9 |
| C | 0 | 239 | 304416 | 1557.52 | 836 | 841 | 194.9 |
| C | 14 | 238 | 133835 | 682.34 | 836 | 841 | 194.9 |
| C | 2 | 16 | 21546 | 106.23 | 836 | 841 | 194.9 |
| D | 7 | 238 | 3855526 | 19975.91 | 798 | 773 | 193.0 |
| D | 8 | 195 | 443767 | 2295.66 | 798 | 773 | 193.0 |
| D | 1 | 52 | 35222 | 178.52 | 798 | 773 | 193.0 |
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 |  |