Observation information
- date-obs: 2018-12-17
- time-obs: 22:57:36.467800000
- date-end: 2018-12-18
- time-end: 04:47:04.461300000
- obs_id: A05_198T01_9000002578
- exposure: 10526.9623793
- 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_17421cztM0_level2.evt
| modeM0/AS1A05_198T01_9000002578_17421cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,309,602,240 | 214,390,080 |
| Size | 1.2 GB
| 204.5 MB
|
| Events in quadrant A | 8,735,729 | 1,323,341 |
| Events in quadrant B | 9,371,270 | 1,338,155 |
| Events in quadrant C | 9,206,267 | 1,286,557 |
| Events in quadrant D | 11,080,051 | 1,252,279 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38438 | 4 |
| B | 0 | 39846 | 5 |
| C | 0 | 38620 | 4 |
| D | 0 | 45740 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 384 | 0 |
| B | 0 | 384 | 0 |
| C | 0 | 384 | 0 |
| D | 0 | 384 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 18753 | 197 | 1.050499% |
| B | 18753 | 270 | 1.439770% |
| C | 18753 | 291 | 1.551752% |
| D | 18753 | 567 | 3.023516% |
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 | 20968 | 18756 | 1 | 1 | 0.00% | 0.01% |  |
| B | 20968 | 18755 | 8 | 8 | 0.04% | 0.04% |  |
| C | 20968 | 18756 | 0 | 0 | 0.00% | 0.00% |  |
| D | 20968 | 18757 | 326 | 326 | 1.55% | 1.74% |  |
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 | 9 | 143 | 20238 | 39.48 | 2264 | 2212 | 456.6 |
| A | 0 | 226 | 19814 | 38.55 | 2264 | 2212 | 456.6 |
| A | 3 | 137 | 17078 | 32.56 | 2264 | 2212 | 456.6 |
| B | 15 | 35 | 129487 | 292.81 | 2269 | 2213 | 434.7 |
| B | 0 | 219 | 128628 | 290.84 | 2269 | 2213 | 434.7 |
| B | 0 | 197 | 97333 | 218.84 | 2269 | 2213 | 434.7 |
| C | 14 | 238 | 330900 | 645.56 | 2166 | 2182 | 509.2 |
| C | 5 | 218 | 270106 | 526.17 | 2166 | 2182 | 509.2 |
| C | 3 | 233 | 83050 | 158.82 | 2166 | 2182 | 509.2 |
| D | 13 | 232 | 1371538 | 2564.31 | 2183 | 2123 | 534.0 |
| D | 1 | 255 | 377656 | 703.21 | 2183 | 2123 | 534.0 |
| D | 10 | 70 | 364122 | 677.86 | 2183 | 2123 | 534.0 |
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 |  |