projects:jupiter:intercont-2023-12-27 [Fundamental Physics in Radio Astronomy]

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====== 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, KAIRA, GLOW (DE601,602,603,604,605,609, but DE601 had strong noise and dropped out too early), the LWA (LWA1, LWA-SV), and other international LOFAR stations (FIXME).


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''.



===== Individual stations =====

==== KAIRA ====

Here are beamlet statistics (dynamic spectrum) just before the observations: \\
{{: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).

People involved: Derek McKay


==== NenuFAR ====

Beamlet statistics (dynamic spectra for XX and YY) from NenuFAR show the great performance of this telescope: \\
{{: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.

People involved: Laurent Lamy, Jean-Mathias Griessmeier, Philippe Zarka, Louis Bondonneau



==== LWA ====

The [[https://leo.phys.unm.edu/~lwa/|LWA]] participated with the stations LWA1 and LWA-SV with director's time in project DW005.
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, FIXME



==== GLOW ====

The German LOFAR stations DE601,602,603,604,605,609 observed using the standard scheduling system in mode ''UDP2lanesRCU3''. They all produced data, but DE601 had strong noise and dropped out too early. They all have their own RFI. I also recorded subband statistics (SST) and beamlet statistics (BST) with 1-sec time resolution for all stations, as well as 1-sec TBB dumps with DE604 and DE605 every about 8 minutes.

Plots of the BST files (dynamic spectra) can be found {{:projects:jupiter:glow_bst.pdf|here.}}
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