Differences
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projects:mkat_sband:pub:start [2022/11/23 13:52] wucknitz |
projects:mkat_sband:pub:start [2023/01/19 15:49] (current) wucknitz |
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| - | For a quick overview of the performance of all antennas, we provide curves for all antennas from relevant observations over all available subbands (sorted by observation id). | + | === Results for typical antennas === |
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| + | The performance of the entire array can be estimated best by taking the median (or some other percentile) over all antennas. Here are corresponding results from the 2022-11-19 observations (see below). First we take the median over all antennas and plot both polarisations individually: | ||
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| + | {{:projects:mkat_sband:pub:sefd_allants_pols.pdf|Both polarisations}} | ||
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| + | Second we average the polarisations but show the 10/50/90% percentile over all antennas. This means we see the typical range of antennas: | ||
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| + | {{:projects:mkat_sband:pub:sefd_allants_perc.pdf|10/50/90% percentiles, polarisations averaged}} | ||
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| + | In both files the first five panels show the individual subbands S0/1/2/3/4, the last one combines them all. The yellow vertical lines are the transition frequencies from one subband to the next. In reality the subbands are overlapping, but I always used the inner part where possible. | ||
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| + | == Files with the numbers == | ||
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| + | [[https://cloud.mpifr-bonn.mpg.de/index.php/s/NCkN2o9a2wGAQGH|Here the same data are provided as text files with space-separated numbers.]] The first line in each file describes the fields (the same for all). | ||
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| + | === Results for individual antennas === | ||
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| + | For a quick overview of the performance of all antennas, we provide curves for all antennas from relevant observations over all available subbands. | ||
| **The first set of plots is meant to represent the latest measurements. These are currently the final SEFD measurements of 2022-11-19 at high elevations:** | **The first set of plots is meant to represent the latest measurements. These are currently the final SEFD measurements of 2022-11-19 at high elevations:** | ||
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| {{:projects:mkat_sband:pub:sefd_bandpass_corr_latest.pdf|PDF with SEFD and bandpass curves (dB), amplitude corrected for digital decimation filter for a better comparison}} | {{:projects:mkat_sband:pub:sefd_bandpass_corr_latest.pdf|PDF with SEFD and bandpass curves (dB), amplitude corrected for digital decimation filter for a better comparison}} | ||
| - | **Note that the scales for some antennas are treated specially here for the moment, because the SEFD and bandpass phases are not in normal ranges.** | + | Note that the scales for some antennas are treated specially here for the moment, because the SEFD and bandpass phases are not in normal ranges. |
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| [[https://docs.google.com/spreadsheets/d/1vkU8JbORwRnFbOLsAbmyU3Sf4chTLwfOdXe26Yq93r4/edit?usp=sharing|Pieter Kotze's receiver status table]] | [[https://docs.google.com/spreadsheets/d/1vkU8JbORwRnFbOLsAbmyU3Sf4chTLwfOdXe26Yq93r4/edit?usp=sharing|Pieter Kotze's receiver status table]] | ||
| - | These are just rought numbers taken from the plots (only at the best frequencies): | + | These are just rought numbers taken from the plots of the final measurements (only at the best frequencies). The replacement status is not necessarily up to date: |
| ^ ant ^ best SEFD pol 0/1 [Jy] ^ batch ^ notes ^ | ^ ant ^ best SEFD pol 0/1 [Jy] ^ batch ^ notes ^ | ||
| - | ^ m000 | 400/420 | 1 | | | + | ^ m000 | 390/410 | 1 | | |
| ^ m001 | 390/400 | 2 | | | ^ m001 | 390/400 | 2 | | | ||
| - | ^ m002 | 390/440 | 1 | | | + | ^ m002 | 390 | 1 | | |
| - | ^ m003 | 410 | 1 | | | + | ^ m003 | 390 | 1 | from previous obs, not included in last | |
| - | ^ m004 | 400 | 1 | | | + | ^ m004 | 400 | 1 | from previous obs, not included in last | |
| - | ^ m005 | 400/**490** | 1 | | | + | ^ m005 | 400/420 | 1 | | |
| - | ^ m006 | 390/**440** | 1 | | | + | ^ m006 | 390/440 | 1 | | |
| - | ^ m007 | 420 | pre-prod | | | + | ^ m007 | 410 | (was pre-prod) | | |
| - | ^ m008 | (450) | replaced | not included in last observation | | + | ^ m008 | 400 | (replaced) | | |
| - | ^ m009 | 410 | 3 | | | + | ^ m009 | 400 | 3 | | |
| ^ m010 | 400/410 | 3 | | | ^ m010 | 400/410 | 3 | | | ||
| ^ m011 | 380/400 | 1 | | | ^ m011 | 380/400 | 1 | | | ||
| - | ^ m012 | 400/**470** | 2 | | | + | ^ m012 | 400/470 | 2 | | |
| ^ m013 | 400 | 2 | | | ^ m013 | 400 | 2 | | | ||
| - | ^ m014 | 400 | 3 | | | + | ^ m014 | 410/400 | 3 | | |
| - | ^ m015 | 430/**450** | 3 | **second pol huge variations with freq** | | + | ^ m015 | 420/**450** | 3 | **second pol huge variations with freq** | |
| - | ^ m016 | 400 | 2 | | | + | ^ m016 | 410 | 2 | | |
| - | ^ m017 | 430/450 | 3 | | | + | ^ m017 | 430/410 | 3 | | |
| ^ m018 | 420 | 2 | | | ^ m018 | 420 | 2 | | | ||
| - | ^ m019 | 390/**450** | 3 | | | + | ^ m019 | 400/470 | 3 | | |
| - | ^ m020 | 390/**450** | 3 | | | + | ^ m020 | 390/440 | 3 | | |
| ^ m021 | 400 | 1 | | | ^ m021 | 400 | 1 | | | ||
| - | ^ m022 | 400/**490** | 2 | | | + | ^ m022 | 400/470 | 2 | | |
| - | ^ m023 | 380/**420** | 2 | | | + | ^ m023 | 380/410 | 2 | | |
| - | ^ m024 | 400/410 | 4 | | | + | ^ m024 | 410/400 | 4 | | |
| - | ^ m025 | 380/**410** | 3 | | | + | ^ m025 | 400/420 | 3 | | |
| - | ^ m026 | 390/400 | 3 | | | + | ^ m026 | 470 | 3 | | |
| - | ^ m027 | 400/390 | 2 | | | + | ^ m027 | 400 | 2 | | |
| - | ^ m028 | 370/**420** | 4 | | | + | ^ m028 | 380/420 | 4 | | |
| - | ^ m029 | 420/440 | 4 | | | + | ^ m029 | 430/440 | 4 | | |
| - | ^ m030 | 400/420 | 1 | | | + | ^ m030 | 400 | 1 | | |
| - | ^ m031 | **>3000** | 3 | **was 430 earlier** | | + | ^ m031 | 400 | 3 | | |
| - | ^ m032 | **420**/390 | 3 | | | + | ^ m032 | 420/400 | 3 | | |
| - | ^ m033 | 390/400 | 3 | | | + | ^ m033 | 390 | 3 | | |
| - | ^ m034 | **450/530** | 3 | | | + | ^ m034 | 400/440 | 3 | | |
| ^ m035 | 400 | 3 | | | ^ m035 | 400 | 3 | | | ||
| - | ^ m036 | 390/380 | 3 | | | + | ^ m036 | 400/**700** | 3 | **second pol very bad** | |
| - | ^ m037 | 390/400 | 4 | | | + | ^ m037 | 400 | 4 | | |
| - | ^ m038 | (400/420) | 2 | not included in last observation | | + | ^ m038 | 400/420 | 2 | | |
| - | ^ m039 | | 4 | | | + | ^ m039 | 390 | 4 | | |
| - | ^ m040 | 380/**430** | 4 | | | + | ^ m040 | 390/420 | 4 | | |
| - | ^ m041 | 390/**440** | 4 | | | + | ^ m041 | 390/430 | 4 | | |
| - | ^ m042 | 420/430 | 4 | | | + | ^ m042 | 410/430 | 4 | | |
| - | ^ m043 | 400 | 1 | | | + | ^ m043 | 400 | 1 | from previous obs, not included in last | |
| - | ^ m044 | 450 | 4 | | | + | ^ m044 | 430 | 4 | | |
| - | ^ m045 | 400/410 | 1 | | | + | ^ m045 | 400 | 1 | | |
| - | ^ m046 | 440/460 | 4 | | | + | ^ m046 | 450 | 4 | | |
| - | ^ m047 | 410/420 | 4 | | | + | ^ m047 | 400 | 4 | | |
| - | ^ m048 | 400/380 | 2 | | | + | ^ m048 | 420/390 | 2 | | |
| - | ^ m049 | 430/420 | 1 | | | + | ^ m049 | 430/410 | 1 | | |
| - | ^ m050 | 370/390 | 2 | | | + | ^ m050 | 370/380 | 2 | | |
| - | ^ m051 | 400/**440** | 4 | | | + | ^ m051 | 400/450 | 4 | | |
| - | ^ m052 | | 4 | | | + | ^ m052 | 390/420 | 4 | | |
| - | ^ m053 | 400 | 1 | | | + | ^ m053 | 410/400 | 1 | | |
| - | ^ m054 | 380 | 2 | | | + | ^ m054 | 390 | 2 | | |
| - | ^ m055 | 400/420 | 4 | | | + | ^ m055 | 400/410 | 4 | | |
| - | ^ m056 | 420 | 1 | | | + | ^ m056 | 420 | 1 | from previous obs, not included in last | |
| - | ^ m057 | 380/400 | 1 | | | + | ^ m057 | 370/380 | 1 | | |
| - | ^ m058 | 400 | 4 | | | + | ^ m058 | 450/390 | 4 | | |
| ^ m059 | 370/400 | 2 | | | ^ m059 | 370/400 | 2 | | | ||
| - | ^ m060 | 400/**430** | 1 | | | + | ^ m060 | 430 | 1 | | |
| - | ^ m061 | 410/400 | 2 | | | + | ^ m061 | 410 | 2 | | |
| - | ^ m062 | **420**/410 | 2 | **first polarisation strange variations with frequency** | | + | ^ m062 | 420/400 | 2 | **high bumps in first polarisation** | |
| - | ^ m063 | 400 | 2 | | | + | ^ m063 | 390/400 | 2 | | |
| - | Total good: 54, minor issues: 7, bad: 1, no signal yet: 2 | + | Three receivers/antennas (m015,m036,m062) are having problems at the moment. The others are all good, but have slightly different SEFD levels. |
