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.
The participants are now much more confident that the message is a binary file of 8212 bytes that was transmitted in 1800 pieces of 4 and 8 bytes. They also notice that Johannes Bauer, from ESA, had mentioned in the launch event that the message was transmitted with a command file of 1800 commands. The participants now set to document thoroughly all their work, so that people interpreting the message can know where the data came from and how it was processed.
Still, there are many things that are not clear about this strong message candidate. Is the "starmap" representation the correct one?
Should it be plotted in color somehow? Is it even intended to be presented as an image? They also wonder about the pieces of 4 and 8
bytes. Does the size of the pieces mean anything?