Observation information
- date-obs: 2018-12-17
- time-obs: 19:31:29.469100000
- date-end: 2018-12-17
- time-end: 21:48:00.468800000
- obs_id: A05_198T01_9000002578
- exposure: 4998.18629125
- 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_17417cztM0_level2.evt
| modeM0/AS1A05_198T01_9000002578_17417cztM0_level2_quad_clean.evt
|
| Size (bytes) | 531,290,880 | 101,194,560 |
| Size | 506.7 MB
| 96.5 MB
|
| Events in quadrant A | 3,605,361 | 643,379 |
| Events in quadrant B | 3,925,052 | 651,534 |
| Events in quadrant C | 3,848,643 | 621,305 |
| Events in quadrant D | 4,187,746 | 612,260 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15914 | 2 |
| B | 0 | 16601 | 2 |
| C | 0 | 16082 | 2 |
| D | 0 | 17715 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7714 | 57 | 0.738916% |
| B | 7714 | 127 | 1.646357% |
| C | 7714 | 123 | 1.594504% |
| D | 7714 | 133 | 1.724138% |
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 | 7869 | 7716 | 1 | 1 | 0.01% | 0.01% |  |
| B | 7869 | 7716 | 8 | 8 | 0.10% | 0.10% |  |
| C | 7869 | 7716 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7869 | 7716 | 75 | 75 | 0.95% | 0.97% |  |
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 | 6 | 16 | 15226 | 75.35 | 929 | 911 | 190.0 |
| A | 4 | 2 | 11038 | 53.3 | 929 | 911 | 190.0 |
| A | 0 | 226 | 8180 | 38.26 | 929 | 911 | 190.0 |
| B | 0 | 219 | 59419 | 323.93 | 930 | 906 | 180.6 |
| B | 7 | 220 | 51686 | 281.12 | 930 | 906 | 180.6 |
| B | 15 | 35 | 34231 | 184.49 | 930 | 906 | 180.6 |
| C | 14 | 238 | 135674 | 646.49 | 885 | 888 | 208.5 |
| C | 5 | 218 | 131649 | 627.19 | 885 | 888 | 208.5 |
| C | 3 | 233 | 65811 | 311.4 | 885 | 888 | 208.5 |
| D | 11 | 176 | 249942 | 1145.15 | 896 | 870 | 217.5 |
| D | 13 | 189 | 159814 | 730.77 | 896 | 870 | 217.5 |
| D | 7 | 38 | 90403 | 411.64 | 896 | 870 | 217.5 |
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 |  |