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Subject:

TST column ids

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Date:

Thu, 3 Aug 2006 10:35:13 +0100

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 I imagine this will have to wait until Peter gets back, but if there's any other TST enthusiasts out there who want to chip in, feel free. Section 11.1 of SSN/75.1 says:    \item By default, the first three columns in the table are: an identifier    (that is, an object name), Right Ascension and Declination. These    columns are usually called {\tt Id}, {\tt ra} and {\tt dec}    respectively.    \item If the first three columns of the table are not an identifier,    Right Ascension and Declination then the TST should contain the    following three parameters:    \begin{quote}    {\tt id\_col \\    ra\_col \\    dec\_col}    \end{quote}    The value of each parameter should be the number of the appropriate    column or, if there is no such column, {\tt -1}. The column number is the    sequence number of the column in the list of column names, starting    counting at zero. However, if I write a TST table with the line    id_col: -1 then GAIA complains "Error: column index -1 out of range" and won't plot the data. This looks like a GAIA/SkyCat bug, but it may be an error in SSN/75. Either way, since it's presumably worked like that for a while, I presume that most TSTs in the field avoid writing id_col: -1, so for now I will try to do the same. Mark -- Mark Taylor Astronomical Programmer Physics, Bristol University, UK [log in to unmask] +44-117-928-8776 http://www.star.bris.ac.uk/~mbt/