Attached is the participant list for the practise session in Metsähovi (22.1. or 29.1.), based on registration at the first lecture. Please let me know if you are not on the list but want to attend (currently space only on 29.1.), or if you need to cancel your participation.
1. Watch the video -- it is an introduction to the Metsähovi radio observatory and the setups for the lab works that will be done during the practise session (if you can attend). It also includes introduction to the VLBI recording equipment -- these are useful to know for the VLBI sessions. If you can not attend the practise session, watching this video is even more important!
2. Carefully read the two sets of slides in this subfolder, one about the general instrumentation, and the other about the VLBI instrumentation. During the lab work you will measure the noise temperature of the 22 GHz VLBI receiver as well as investigate the radio frequency interference (RFI) environment at the observatory. Practise the calculation with the example given in the slides, and familiarise yourself with the other material included there, too!
Here are additional material related to the visit in Metsähovi. Going through these is not mandatory but you may find them interesting or useful, and I have added material according to some questions that were asked on site.
Video about the renewal of the Metsähovi radome in summer 2020.
See the subfolder for additional documents, including the radio frequency allocation table, etc..
Two sets of slides about single dish observations, observations in Metsähovi, and coordinate systems and source visibility calculations.
The first set consists of the slides shown during the lecture. The second set is supplementary & recap material, but please read them before the single dish -practise session. Also, if you still struggle with the coordinate calculations, please practise them extensively before the practise session and the observing shift!
This year we adjusted the contents of the course slightly due to the remote teaching challenges, and omitted the guest lecture that we have earlier had, about the Cosmic Microwave Background (CMB) radiation and cosmology, by Hannu Kurki-Suonio from University of Helsinki.
I include his slides from last year for those of you who might be interested in the topic. This year we will not have specific exam questions addressing these topics, though (your understanding of them is assumed to be from what was covered already in the Introduction to Space -course).