Observation information
- date-obs: 2018-12-18
- time-obs: 11:21:00.453100000
- date-end: 2018-12-18
- time-end: 13:30:27.452300000
- obs_id: A05_198T01_9000002578
- exposure: 4972.63682143
- sourceid: MCG-2-58-22
- observer: astrosat2susmita
- ra_pnt: 346.1812
- dec_pnt: -8.68573
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_198T01_9000002578_17427cztM0_level2.evt
| modeM0/AS1A05_198T01_9000002578_17427cztM0_level2_quad_clean.evt
|
| Size (bytes) | 491,060,160 | 115,211,520 |
| Size | 468.3 MB
| 109.9 MB
|
| Events in quadrant A | 3,415,743 | 785,804 |
| Events in quadrant B | 3,760,523 | 790,072 |
| Events in quadrant C | 3,451,555 | 735,604 |
| Events in quadrant D | 3,804,676 | 726,797 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14284 | 2 |
| B | 0 | 15447 | 2 |
| C | 0 | 14197 | 3 |
| D | 0 | 15474 | 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 | 6467 | 126 | 1.948353% |
| B | 6467 | 161 | 2.489562% |
| C | 6467 | 146 | 2.257616% |
| D | 6467 | 133 | 2.056595% |
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 | 7767 | 6467 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7767 | 6467 | 25 | 25 | 0.32% | 0.39% |  |
| C | 7767 | 6468 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7767 | 6468 | 45 | 45 | 0.58% | 0.70% |  |
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 | 15 | 191 | 9415 | 48.35 | 884 | 870 | 176.7 |
| A | 0 | 226 | 7930 | 39.95 | 884 | 870 | 176.7 |
| A | 12 | 194 | 6663 | 32.78 | 884 | 870 | 176.7 |
| B | 7 | 220 | 152933 | 928.72 | 874 | 857 | 163.7 |
| B | 0 | 219 | 74670 | 450.77 | 874 | 857 | 163.7 |
| B | 0 | 197 | 32657 | 194.2 | 874 | 857 | 163.7 |
| C | 14 | 238 | 130091 | 678.67 | 822 | 827 | 190.5 |
| C | 5 | 218 | 64078 | 332.08 | 822 | 827 | 190.5 |
| C | 5 | 219 | 30025 | 153.3 | 822 | 827 | 190.5 |
| D | 12 | 110 | 133965 | 659.32 | 844 | 822 | 201.9 |
| D | 13 | 189 | 129023 | 634.84 | 844 | 822 | 201.9 |
| D | 15 | 0 | 95663 | 469.65 | 844 | 822 | 201.9 |
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 |  |