Observation information
- date-obs: 2020-03-17
- time-obs: 08:35:41.310600000
- date-end: 2020-03-17
- time-end: 10:39:57.308400000
- obs_id: A07_067T01_9000003578
- exposure: 3598.6409812
- 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_24160cztM0_level2.evt
| modeM0/AS1A07_067T01_9000003578_24160cztM0_level2_quad_clean.evt
|
| Size (bytes) | 454,703,040 | 85,913,280 |
| Size | 433.6 MB
| 81.9 MB
|
| Events in quadrant A | 3,234,697 | 544,938 |
| Events in quadrant B | 3,316,814 | 554,395 |
| Events in quadrant C | 3,349,300 | 533,449 |
| Events in quadrant D | 3,438,472 | 525,757 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 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 | 13073 | 1 |
| B | 0 | 13350 | 1 |
| C | 0 | 13518 | 1 |
| D | 0 | 13948 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6346 | 77 | 1.213363% |
| B | 6347 | 110 | 1.733102% |
| C | 6347 | 106 | 1.670080% |
| D | 6346 | 59 | 0.929720% |
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 | 7456 | 6346 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7457 | 6348 | 27 | 27 | 0.36% | 0.43% |  |
| C | 7457 | 6347 | 6 | 6 | 0.08% | 0.09% |  |
| D | 7456 | 6346 | 9 | 9 | 0.12% | 0.14% |  |
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 | 10992 | 60.71 | 839 | 824 | 167.5 |
| A | 0 | 226 | 7430 | 39.44 | 839 | 824 | 167.5 |
| A | 3 | 137 | 6895 | 36.25 | 839 | 824 | 167.5 |
| B | 5 | 172 | 74051 | 470.66 | 825 | 804 | 155.6 |
| B | 12 | 111 | 18209 | 111.84 | 825 | 804 | 155.6 |
| B | 11 | 111 | 16199 | 98.92 | 825 | 804 | 155.6 |
| C | 14 | 238 | 129130 | 701.76 | 795 | 802 | 182.9 |
| C | 2 | 16 | 54768 | 295.11 | 795 | 802 | 182.9 |
| C | 3 | 233 | 36363 | 194.46 | 795 | 802 | 182.9 |
| D | 7 | 238 | 110025 | 549.51 | 816 | 794 | 198.8 |
| D | 8 | 195 | 95001 | 473.93 | 816 | 794 | 198.8 |
| D | 1 | 52 | 77641 | 386.59 | 816 | 794 | 198.8 |
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 |  |