Observation information
- date-obs: 2018-12-21
- time-obs: 16:56:09.468800000
- date-end: 2018-12-21
- time-end: 18:05:54.469900000
- obs_id: A05_198T01_9000002586
- exposure: 2561.72414348
- 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_9000002586_17474cztM0_level2.evt
| modeM0/AS1A05_198T01_9000002586_17474cztM0_level2_quad_clean.evt
|
| Size (bytes) | 290,214,720 | 52,830,720 |
| Size | 276.8 MB
| 50.4 MB
|
| Events in quadrant A | 1,975,118 | 339,557 |
| Events in quadrant B | 2,024,783 | 347,171 |
| Events in quadrant C | 1,894,642 | 332,284 |
| Events in quadrant D | 2,642,243 | 318,996 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 76 | 0 |
| B | 0 | 76 | 0 |
| C | 0 | 76 | 0 |
| D | 0 | 76 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8126 | 1 |
| B | 0 | 8210 | 1 |
| C | 0 | 7776 | 1 |
| D | 0 | 10246 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 5 | 0 |
| B | 0 | 5 | 0 |
| C | 0 | 5 | 0 |
| D | 0 | 5 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 3696 | 55 | 1.488095% |
| B | 3696 | 33 | 0.892857% |
| C | 3696 | 54 | 1.461039% |
| D | 3696 | 219 | 5.925325% |
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 | 4186 | 3698 | 28 | 28 | 0.67% | 0.76% |  |
| B | 4186 | 3698 | 6 | 6 | 0.14% | 0.16% |  |
| C | 4186 | 3698 | 0 | 0 | 0.00% | 0.00% |  |
| D | 4186 | 3698 | 133 | 133 | 3.18% | 3.60% |  |
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 | 174 | 126453 | 1278.07 | 479 | 470 | 98.6 |
| A | 4 | 2 | 6075 | 56.86 | 479 | 470 | 98.6 |
| A | 0 | 226 | 4269 | 38.54 | 479 | 470 | 98.6 |
| B | 12 | 18 | 61794 | 654.36 | 478 | 465 | 93.7 |
| B | 12 | 17 | 31708 | 333.35 | 478 | 465 | 93.7 |
| B | 4 | 216 | 19715 | 205.39 | 478 | 465 | 93.7 |
| C | 14 | 238 | 69523 | 638.5 | 455 | 457 | 108.2 |
| C | 5 | 218 | 39205 | 358.21 | 455 | 457 | 108.2 |
| C | 5 | 37 | 6521 | 56.06 | 455 | 457 | 108.2 |
| D | 10 | 70 | 501970 | 4481.89 | 452 | 438 | 111.9 |
| D | 7 | 238 | 236995 | 2113.97 | 452 | 438 | 111.9 |
| D | 13 | 232 | 101588 | 903.92 | 452 | 438 | 111.9 |
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 |  |