Some new spectral overviews

Spectral overviews taken with Callisto and an isotropic antenna at:
a) University of Rwanda in Kigali
b) VIRAC, RT-32 radio telescope in Irbene/Ventspils, Latvia
c) Holzheim, Germany

Observation of Moon, Milky Way and M17 with 5m dish antenna and CALLISTO

Galaxy moves to the 'left' with respect to the Moon. Or, in others words, Moon moves faster than the sky background. Right of the Milky Way we can see M17 or W38 with a few Jansky less than the Moon.

Observation of Cygnus A and the Milky Way with a 5m parabolic dish and CALLISTO

All channels between 980 MHz and 1260 MHz integrated. Channels with strong interference (sigma > 0.7 digits) are excludeded from integration. So from total 200 channels 169 could be used for integration in frequency domain.

1st ligth at Bleien observatory, Switzerland with LWA

Today a Low Wavelength Antenna (LWA) was successfully installed and we already got 1st light, a nice type III burst.

And here the LWA in the bushes of Bleien.

United Nations Office for Outer Space Affairs (UNOOSA), Committee Of the Peaceful Uses of Space (COPUOS)

Gave a talk about CALLISTO and the e-Callisto network. A recommendation letter was initiated with the intention to continue the ideas of ISWI. Scientists shall be able to make use of all the instrument networks. Data and tools shall be made available for everybody. Education shall be improved. Currently there are instruments operating under the framework of IHY2007 and ISWI of about 10 M$.

12.12.2013: Callisto observed caustic spikes

These burst from December 12th 2013 look like this is the effect of ionospheric gravity waves. This spectral features are known as caustics or caustic spikes, and they are due to the ionosphere (traveling ionospheric disturbances TIDs). The effect is local, that's why we observe different features at different locations. These effects (to my knowledge) were only observed in European region (Birr/Ireland, Essen/Germany, Glasgow/UK and Nançay/France.

New Callisto solar radio spectrometer at Sternwarte Essen, Germany

 

Biconical antenna to receiver low frequency solar radio bursts

 

Heterodyne-converter and Callisto mounted on the same panel

 

First light, a small group of type III bursts