Observation information
- date-obs: 2022-01-09
- time-obs: 06:08:45.851000000
- date-end: 2022-01-09
- time-end: 08:16:08.852200000
- obs_id: A11_037T01_9000004858
- exposure: 2195.42891757
- sourceid: NGC 2808
- observer: deepthisprabhu
- ra_pnt: 138.0129
- dec_pnt: -64.8625
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A11_037T01_9000004858_33973cztM0_level2.evt
| modeM0/AS1A11_037T01_9000004858_33973cztM0_level2_quad_clean.evt
|
| Size (bytes) | 695,543,040 | 56,111,040 |
| Size | 663.3 MB
| 53.5 MB
|
| Events in quadrant A | 8,393,764 | 51,041 |
| Events in quadrant B | 3,297,077 | 460,290 |
| Events in quadrant C | 3,143,133 | 444,208 |
| Events in quadrant D | 5,902,818 | 402,797 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29895 | 1565 |
| B | 0 | 13454 | 487 |
| C | 0 | 13161 | 605 |
| D | 0 | 21851 | 906 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 102 | 4 |
| B | 0 | 102 | 4 |
| C | 0 | 102 | 8 |
| D | 0 | 102 | 4 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 26 | 8 |
| B | 0 | 26 | 11 |
| C | 0 | 26 | 11 |
| D | 0 | 27 | 8 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4809 | 4804 | 99.896028% |
| B | 4849 | 124 | 2.557228% |
| C | 4840 | 97 | 2.004132% |
| D | 4839 | 854 | 17.648274% |
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 | 7111 | 4837 | 2253 | 2253 | 31.68% | 46.58% |  |
| B | 7112 | 4870 | 86 | 86 | 1.21% | 1.77% |  |
| C | 7112 | 4866 | 68 | 68 | 0.96% | 1.40% |  |
| D | 7112 | 4864 | 771 | 771 | 10.84% | 15.85% |  |
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 | 169 | 8006141 | 381949.27 | 98 | 96 | 21.0 |
| A | 10 | 83 | 4296 | 200.37 | 98 | 96 | 21.0 |
| A | 13 | 254 | 1444 | 64.31 | 98 | 96 | 21.0 |
| B | 5 | 172 | 440346 | 3765.43 | 638 | 624 | 116.8 |
| B | 0 | 190 | 128309 | 1093.39 | 638 | 624 | 116.8 |
| B | 0 | 219 | 55132 | 466.76 | 638 | 624 | 116.8 |
| C | 3 | 233 | 226995 | 1594.03 | 630 | 635 | 142.0 |
| C | 15 | 214 | 213803 | 1501.13 | 630 | 635 | 142.0 |
| C | 0 | 10 | 182553 | 1281.07 | 630 | 635 | 142.0 |
| D | 12 | 33 | 1678362 | 11514.39 | 602 | 586 | 145.7 |
| D | 8 | 195 | 840424 | 5763.72 | 602 | 586 | 145.7 |
| D | 2 | 250 | 493406 | 3382.17 | 602 | 586 | 145.7 |
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 |  |