Unpack your dataset with gtar:

gtar xvf 80110-01-15-00.tar

this will produce a directory 80110-01-15-00 with many subdirectories containing the raw data. In order to keep all of our RXTE data together, this subdirectory should then be copied to the directory /data5/phsdak/tuebingen/xtearray/FD/AO8/P80110 and several other scripts will have to be run. The correct way here is to talk to Jörn to get everything installed.

A quick note on the structure of RXTE data: Data are stored according to the number of the "Announcement of Opportunity" (AO) during which the data were proposed for. For our example, this is AO8. Each proposal then has an unique number, e.g., proposal number 110 of AO8 has the identification P80110, and this also forms the first part of the identification of the observation. The remaining numbers are:

• The identification number of the object within the proposal (above example: 01).
• The number of the observation of this object (above: 15)
• A further identification of the pointing within a given observation, which is 00 in the above example, and which is generally 000, 00, 01, and so on.
• A further letter can identify special properties of the observation, which are explained in more detail on the RXTE web-pages.

In Warwick and in Tübingen, we store all observations in the tree starting with FD above. This way we have the guarantee that all data are only available once and do not clutter our disks. Furthermore, since we typically work on these data in the UK, Germany, the USA, and Switzerland, having an unique tree for the RXTE data greatly simplifies life.