Observation information
- date-obs: 2019-05-07
- time-obs: 12:36:44.292500000
- date-end: 2019-05-07
- time-end: 13:20:14.299100000
- obs_id: A05_175T01_9000002894
- exposure: 505.572822869
- 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_19499cztM0_level2.evt
| modeM0/AS1A05_175T01_9000002894_19499cztM0_level2_quad_clean.evt
|
| Size (bytes) | 127,085,760 | 12,890,880 |
| Size | 121.2 MB
| 12.3 MB
|
| Events in quadrant A | 882,630 | 70,102 |
| Events in quadrant B | 927,175 | 70,910 |
| Events in quadrant C | 958,017 | 65,134 |
| Events in quadrant D | 969,797 | 65,709 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3500 | 1 |
| B | 0 | 3661 | 1 |
| C | 0 | 3761 | 1 |
| D | 0 | 3894 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 34 | 0 |
| B | 0 | 34 | 0 |
| C | 0 | 34 | 0 |
| D | 0 | 34 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1596 | 117 | 7.330827% |
| B | 1596 | 136 | 8.521303% |
| C | 1596 | 133 | 8.333333% |
| D | 1596 | 107 | 6.704261% |
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 | 2611 | 1596 | 0 | 0 | 0.00% | 0.00% |  |
| B | 2611 | 1596 | 1 | 1 | 0.04% | 0.06% |  |
| C | 2611 | 1596 | 1 | 1 | 0.04% | 0.06% |  |
| D | 2611 | 1596 | 1 | 1 | 0.04% | 0.06% |  |
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 | 5 | 16 | 4712 | 94.38 | 227 | 221 | 47.6 |
| A | 0 | 226 | 2005 | 37.49 | 227 | 221 | 47.6 |
| A | 3 | 137 | 1933 | 35.98 | 227 | 221 | 47.6 |
| B | 3 | 64 | 22331 | 495.01 | 221 | 215 | 44.7 |
| B | 4 | 171 | 14703 | 324.28 | 221 | 215 | 44.7 |
| B | 0 | 244 | 10875 | 238.6 | 221 | 215 | 44.7 |
| C | 7 | 247 | 53605 | 1046.87 | 211 | 212 | 51.0 |
| C | 14 | 238 | 32586 | 634.75 | 211 | 212 | 51.0 |
| C | 3 | 233 | 23322 | 453.11 | 211 | 212 | 51.0 |
| D | 1 | 52 | 135663 | 2433.86 | 219 | 211 | 55.7 |
| D | 2 | 234 | 5184 | 89.36 | 219 | 211 | 55.7 |
| D | 12 | 225 | 3022 | 50.51 | 219 | 211 | 55.7 |
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 |  |