Observation information
- date-obs: 2018-12-18
- time-obs: 16:21:29.451300000
- date-end: 2018-12-18
- time-end: 18:39:00.451100000
- obs_id: A05_198T01_9000002578
- exposure: 4591.75360064
- 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_17430cztM0_level2.evt
| modeM0/AS1A05_198T01_9000002578_17430cztM0_level2_quad_clean.evt
|
| Size (bytes) | 498,556,800 | 94,092,480 |
| Size | 475.5 MB
| 89.7 MB
|
| Events in quadrant A | 3,590,641 | 600,311 |
| Events in quadrant B | 3,801,171 | 610,299 |
| Events in quadrant C | 3,421,209 | 585,269 |
| Events in quadrant D | 3,816,249 | 571,690 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15219 | 2 |
| B | 0 | 15615 | 2 |
| C | 0 | 14432 | 2 |
| D | 0 | 16080 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6913 | 134 | 1.938377% |
| B | 6913 | 150 | 2.169825% |
| C | 6913 | 79 | 1.142774% |
| D | 6913 | 191 | 2.762910% |
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 | 7618 | 6914 | 84 | 84 | 1.10% | 1.21% |  |
| B | 7618 | 6914 | 38 | 38 | 0.50% | 0.55% |  |
| C | 7618 | 6914 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7618 | 6914 | 174 | 174 | 2.28% | 2.52% |  |
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 | 10 | 253 | 312098 | 1816.77 | 844 | 827 | 171.3 |
| A | 9 | 143 | 13429 | 73.55 | 844 | 827 | 171.3 |
| A | 6 | 16 | 9772 | 52.21 | 844 | 827 | 171.3 |
| B | 15 | 35 | 201778 | 1235.35 | 845 | 822 | 162.7 |
| B | 0 | 219 | 94540 | 576.12 | 845 | 822 | 162.7 |
| B | 7 | 220 | 90659 | 552.26 | 845 | 822 | 162.7 |
| C | 14 | 238 | 124406 | 653.24 | 802 | 807 | 189.2 |
| C | 5 | 218 | 112718 | 591.47 | 802 | 807 | 189.2 |
| C | 3 | 233 | 27334 | 140.2 | 802 | 807 | 189.2 |
| D | 13 | 232 | 484944 | 2447.42 | 809 | 786 | 197.8 |
| D | 13 | 189 | 63104 | 315.02 | 809 | 786 | 197.8 |
| D | 12 | 110 | 53429 | 266.11 | 809 | 786 | 197.8 |
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 |  |