Observation information
- date-obs: 2019-05-07
- time-obs: 12:36:44.292500000
- date-end: 2019-05-08
- time-end: 18:58:32.307900000
- obs_id: A05_175T01_9000002894
- exposure: 46866.781244
- sourceid: Mkn 478
- observer: samuzal_astrosat
- ra_pnt: 220.5308
- dec_pnt: 35.43972
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_175T01_9000002894cztM0_level2.fits
| modeM0/AS1A05_175T01_9000002894cztM0_level2_quad_clean.evt
|
| Size (bytes) | 923,820,480 | 852,609,600 |
| Size | 881.0 MB
| 813.1 MB
|
| Events in quadrant A | 5,794,404 | 5,321,716 |
| Events in quadrant B | 5,531,650 | 5,282,160 |
| Events in quadrant C | 5,572,384 | 4,978,054 |
| Events in quadrant D | 4,549,858 | 3,715,041 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 196966 | 0 |
| B | 0 | 201214 | 0 |
| C | 0 | 203404 | 0 |
| D | 0 | 312079 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1942 | 0 |
| B | 0 | 1942 | 0 |
| C | 0 | 1942 | 0 |
| D | 0 | 1942 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 95178 | 1189 | 1.249238% |
| B | 95178 | 1731 | 1.818698% |
| C | 95178 | 1980 | 2.080313% |
| D | 95178 | 13581 | 14.269054% |
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 | 109309 | 95169 | 0 | 0 | 0.00% | 0.00% |  |
| B | 109309 | 95162 | 0 | 0 | 0.00% | 0.00% |  |
| C | 109309 | 95170 | 0 | 0 | 0.00% | 0.00% |  |
| D | 109303 | 94567 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 5598 | 11.46 | 1506 | 1415 | 365.0 |
| A | 7 | 110 | 4642 | 8.84 | 1506 | 1415 | 365.0 |
| A | 0 | 30 | 4334 | 8.0 | 1506 | 1415 | 365.0 |
| B | 2 | 9 | 4408 | 10.54 | 1459 | 1391 | 286.4 |
| B | 2 | 8 | 3756 | 8.26 | 1459 | 1391 | 286.4 |
| B | 5 | 225 | 3655 | 7.91 | 1459 | 1391 | 286.4 |
| C | 1 | 81 | 4232 | 7.61 | 1469 | 1370 | 375.9 |
| C | 1 | 80 | 4139 | 7.37 | 1469 | 1370 | 375.9 |
| C | 12 | 241 | 3928 | 6.8 | 1469 | 1370 | 375.9 |
| D | 3 | 14 | 3257 | 6.03 | 1298 | 1182 | 344.1 |
| D | 7 | 3 | 3253 | 6.02 | 1298 | 1182 | 344.1 |
| D | 10 | 189 | 3220 | 5.92 | 1298 | 1182 | 344.1 |
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 |  |