One participant has found that the headers in TGO's space packets, which were mostly overlooked before, use an ESA protocol called PUS. These headers tell us something about the meaning of each packet: its purpose, and the kind of data it contains. With this new information, the participants quickly uncover the meaning of each of the packet "types" (APIDs) that appeared when the message reception began. APID 0017, which was considered as the main candidate for containing the message is seen to contain "memory dumps" from the spacecraft. The other APIDs contain information about the commands that the spacecraft executed to generate the memory dumps.
A large part of the conversation still revolves around the "star-map".
Could it be pulsars? Active galactic nuclei? Molecular clouds? Maybe it is related to TGO's star tracker? These are cameras on the spacecraft
that look at the stars to find how the spacecraft is oriented. In parallel, there are attempts to visualize the same data in a completely
I would like to figure interpretative biases could emerge during the interpretation of the message. I don't have a psychologist background to do this properly. So I hope someone trained in this can take this message (yes, this is a message :D) like an hint to do. I think it would be important finding or enlightening potential flaws in the interpretative flow before to start the interpretation of any possible message candidate. So I start. Forgive my totally inaccurate terminology. Try to catch the message and improve.
The participants continue to analyze the data in the three APIDs ("packet types") which are considered the most likely to contain the message. One of the three APIDs (the one numbered as 0x17) has received the most attention.
On Discord, Daniel Estévez summarized the decoding process state of the art.
Link to the post: https://discordapp.com/channels/1066055437457297469/1110258553689739276/1112487058326437960
Noticing that part of the data was missing from earlier decoding attempts, the participants make some improvements to their approach and decode again the Green Bank Telescope SigMF recording. Now they carefully check the frame sequence numbers and CRCs to ensure that no data has been lost or corrupted.
The participants are studying the data in the space packets from different points of view. They try to find patterns, and plot the data in different ways. Some of the participants are still working on the earlier stages of the decoding process, with the SigMF recordings. They want to manage to decode them on their own to understand how this can be done. Other participants help them set up the software to do this.
The organizers have hinted that the message is in the telemetry signal of TGO, intermixed with other data that is sent normally by the spacecraft.
The SigMF recordings made at the Allen Telescope Array, Green Bank Telescope and Medicina Observatory have been made available for
The participants have explored these recordings using different software. Link: https://discordapp.com/channels/1066055437457297469/1110258553689739276/1111030391613181962