Observation information
- date-obs: 2019-05-08
- time-obs: 00:59:50.309000000
- date-end: 2019-05-08
- time-end: 03:14:57.308700000
- obs_id: A05_175T01_9000002894
- exposure: 4381.08139025
- 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_19507cztM0_level2.evt
| modeM0/AS1A05_175T01_9000002894_19507cztM0_level2_quad_clean.evt
|
| Size (bytes) | 443,491,200 | 92,969,280 |
| Size | 422.9 MB
| 88.7 MB
|
| Events in quadrant A | 3,038,260 | 604,479 |
| Events in quadrant B | 3,143,833 | 611,224 |
| Events in quadrant C | 3,162,619 | 580,034 |
| Events in quadrant D | 3,642,920 | 564,827 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13268 | 2 |
| B | 0 | 13463 | 2 |
| C | 0 | 13460 | 2 |
| D | 0 | 15375 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6524 | 22 | 0.337216% |
| B | 6524 | 40 | 0.613121% |
| C | 6524 | 44 | 0.674433% |
| D | 6524 | 137 | 2.099939% |
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 | 7569 | 6525 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7569 | 6524 | 4 | 4 | 0.05% | 0.06% |  |
| C | 7569 | 6525 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7569 | 6525 | 113 | 113 | 1.49% | 1.73% |  |
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 | 0 | 226 | 6777 | 37.69 | 788 | 771 | 159.4 |
| A | 3 | 137 | 6329 | 34.87 | 788 | 771 | 159.4 |
| A | 13 | 254 | 5878 | 32.04 | 788 | 771 | 159.4 |
| B | 12 | 111 | 18358 | 116.96 | 785 | 764 | 150.4 |
| B | 0 | 198 | 16890 | 107.2 | 785 | 764 | 150.4 |
| B | 11 | 111 | 16280 | 103.15 | 785 | 764 | 150.4 |
| C | 14 | 238 | 117378 | 660.54 | 753 | 759 | 176.6 |
| C | 3 | 233 | 71439 | 400.34 | 753 | 759 | 176.6 |
| C | 9 | 221 | 28730 | 158.43 | 753 | 759 | 176.6 |
| D | 12 | 218 | 456245 | 2478.41 | 754 | 733 | 183.8 |
| D | 1 | 52 | 139208 | 753.43 | 754 | 733 | 183.8 |
| D | 7 | 238 | 103602 | 559.7 | 754 | 733 | 183.8 |
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 |  |