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projects:jupiter:intercont-2023-12-27 [2023/12/28 11:09] wucknitz |
projects:jupiter:intercont-2023-12-27 [2024/03/05 13:57] (current) wucknitz |
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| ====== Observations 2023-12-27 20:30-22:30 UTC ====== | ====== Observations 2023-12-27 20:30-22:30 UTC ====== | ||
| - | This time was chosen because of a good chance to see DAM signals from both hemispheres of Jupiter, so that that could be calibration relative to each other. We observed with NenuFAR, the LWA (LWA1, LWA-SV), KAIRA, GLOW, and other international LOFAR stations (FIXME). It is very sad that our Ukrainian friends cannot participate with UTR2 anymore. | + | This time was chosen because of a good chance to see DAM signals from both hemispheres of Jupiter, so that they can be calibrated relative to each other. We observed with NenuFAR, the LWA (LWA1, LWA-SV), KAIRA, and a number of LOFAR stations (all six of GLOW, PL612, IE613, LV614). It is very sad that our Ukrainian friends cannot participate with UTR2 anymore. |
| All LOFAR(-like) stations observed in RCU mode 3 (band 10_90) with 8-bit recording of 244 subbands (40-283, 8-55 MHz). Beamforming was done in direction ''0.5826639,0.2118205,J2000'' or ''0,0,JUPITER''. | All LOFAR(-like) stations observed in RCU mode 3 (band 10_90) with 8-bit recording of 244 subbands (40-283, 8-55 MHz). Beamforming was done in direction ''0.5826639,0.2118205,J2000'' or ''0,0,JUPITER''. | ||
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| ===== Individual stations ===== | ===== Individual stations ===== | ||
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| + | Diagnostic plots for all participating LOFAR stations (and eventually NenuFAR, FIXME) can be found {{:projects:jupiter:jupiter_2023_12_27_stat.pdf|here.}} They all show clear signatures from Jupiter in the dynamic spectra even at this very low resolution. | ||
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| ==== KAIRA ==== | ==== KAIRA ==== | ||
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| {{:projects:jupiter:kaira_kmb.png?direct&300|KAIRA BST plot}} | {{:projects:jupiter:kaira_kmb.png?direct&300|KAIRA BST plot}} | ||
| - | This plot was taken from the realtime display at [[https://www.sgo.fi/KAIRA/bst.php]]. It shows a nice Io-B arc (north). | + | This plot was taken from the realtime display at [[https://www.sgo.fi/KAIRA/bst.php]]. It shows nice DAM signals (possibly Io-B, north). |
| - | People involved: Derek McKay | + | **People involved: Derek McKay** |
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| {{:projects:jupiter:20231227_202900_bst_sum_up_glisse_s_.pdf}} | {{:projects:jupiter:20231227_202900_bst_sum_up_glisse_s_.pdf}} | ||
| - | These plots show the strong Io-B arc, but unfortunately not the Io-D counterpart from the southern hemisphere that we had hoped for. However, the signal is clearly strong enough for a VLBI analysis. | + | These plots show the strong (Io-B?) arc, but unfortunately not the expected (Io-D) counterpart from the southern hemisphere that we had hoped for. The exact nature of these signals needs to be investigated. In any case the signal is clearly strong enough for a VLBI analysis. |
| - | People involved: Laurent Lamy, Jean-Mathias Griessmeier, Philippe Zarka, Louis Bondonneau | + | Here are plots from data taken before our observation (kindly provided by Laurent Lamy):\\ |
| + | {{:projects:jupiter:20231227_140000_20231227_202900_jupiter_tracking.pdf}}\\ | ||
| + | He writes: "(1) It confirmes that the prominent vertex-early arcs are RH polarized (white on the bottom panel) and therefore consistent with Io-B emission (2) at the lowest frequencies, LH emission (black on the bottom panel) is seen continuously after 16:30, including what might be a signature of Io-D emission after 18:00". | ||
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| + | This means we have a good chance to see emission from both hemispheres at least at the beginning of our observation. | ||
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| + | **People involved: Laurent Lamy, Jean-Mathias Griessmeier, Philippe Zarka, Louis Bondonneau** | ||
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| The schedule file [[projects:jupiter:2023-12-27_idf|DW005_231227_2230_0001.idf]] was used. It defines two tunings with 19.6 MHz bandwidth each, one centred on 16.078125000 MHz, one on 31.390625000 MHz. | The schedule file [[projects:jupiter:2023-12-27_idf|DW005_231227_2230_0001.idf]] was used. It defines two tunings with 19.6 MHz bandwidth each, one centred on 16.078125000 MHz, one on 31.390625000 MHz. | ||
| - | People involved: Greg Taylor, Jayce Dowell | + | **People involved: Greg Taylor, Jayce Dowell** |
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| Plots of the BST files (dynamic spectra) can be found {{:projects:jupiter:glow_bst.pdf|here.}} | Plots of the BST files (dynamic spectra) can be found {{:projects:jupiter:glow_bst.pdf|here.}} | ||
| - | People involved: Olaf Wucknitz, Francesco Angelo Iraci, Sai Chaitanya Susarla, Krishnakumar Moochickal Ambalappat | + | **People involved: Olaf Wucknitz, Francesco Angelo Iraci, Sai Chaitanya Susarla, Krishnakumar Moochickal Ambalappat** |
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| + | ==== PL610 ==== | ||
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| + | **People involved: Mariusz Pożoga** | ||
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| + | ==== PL612 ==== | ||
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| + | **People involved: Tomasz Sidorowicz** | ||
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| + | ==== IE613 ==== | ||
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| + | **People involved: Joe McCauley, Corentin Louis** | ||
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| + | ==== LV614 ==== | ||
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| + | LV614 started a bit late, but also continued for a bit longer. | ||
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| + | **People involved: Janis Steinbergs** | ||
