Observation information
- date-obs: 2020-03-18
- time-obs: 03:31:23.299000000
- date-end: 2020-03-18
- time-end: 05:53:31.296800000
- obs_id: A07_067T01_9000003578
- exposure: 4103.01122363
- sourceid: Mrk 493
- observer: samuzal_astrosat
- ra_pnt: 239.7901
- dec_pnt: 35.02988
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A07_067T01_9000003578_24172cztM0_level2.evt
| modeM0/AS1A07_067T01_9000003578_24172cztM0_level2_quad_clean.evt
|
| Size (bytes) | 756,000,000 | 101,070,720 |
| Size | 721.0 MB
| 96.4 MB
|
| Events in quadrant A | 3,341,074 | 711,576 |
| Events in quadrant B | 3,352,522 | 728,301 |
| Events in quadrant C | 3,488,480 | 679,987 |
| Events in quadrant D | 12,277,910 | 490,878 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 21 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13595 | 2 |
| B | 0 | 13639 | 2 |
| C | 0 | 14108 | 2 |
| D | 0 | 40929 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6441 | 14 | 0.217358% |
| B | 6441 | 27 | 0.419190% |
| C | 6441 | 93 | 1.443875% |
| D | 6441 | 3626 | 56.295606% |
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 | 7826 | 6442 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7826 | 6442 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7826 | 6442 | 19 | 19 | 0.24% | 0.29% |  |
| D | 7826 | 6441 | 3276 | 3276 | 41.86% | 50.86% |  |
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 | 13 | 254 | 9249 | 49.03 | 866 | 851 | 171.3 |
| A | 0 | 226 | 7699 | 39.98 | 866 | 851 | 171.3 |
| A | 3 | 137 | 6917 | 35.41 | 866 | 851 | 171.3 |
| B | 12 | 111 | 17994 | 107.35 | 858 | 840 | 159.8 |
| B | 11 | 111 | 16154 | 95.84 | 858 | 840 | 159.8 |
| B | 14 | 111 | 14382 | 84.75 | 858 | 840 | 159.8 |
| C | 0 | 239 | 149923 | 800.68 | 816 | 825 | 186.2 |
| C | 14 | 238 | 134713 | 719.0 | 816 | 825 | 186.2 |
| C | 10 | 9 | 9970 | 49.11 | 816 | 825 | 186.2 |
| D | 7 | 238 | 8811304 | 56484.18 | 648 | 628 | 156.0 |
| D | 8 | 195 | 699855 | 4482.66 | 648 | 628 | 156.0 |
| D | 1 | 52 | 81196 | 516.51 | 648 | 628 | 156.0 |
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 |  |