leda Compilation of the nature of objects

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The physical nature of objects is collected from the literature and from the surveys loaded in HyperLeda. Before 2005, this information was directly stored in a homogenized parameters table where the best assigment was stored. A suposedly better estimate was replacing the previous one, and history information was lost. Therefore, the source of the classification before that time is given under the reference 88, and precise origin cannot be tracked.

Field: numtype objtype

Object nature. The nature is internally stored as a numerical code numtype that is not displayed by default. The character code, objtype, displayed by default, is defined in the the "nature_codes": table:

Field: quality

The quality flag associated to an assessment of the nature (normally indicated in parentheses after the value) has the following meaning:
0Regular determination, presumed reliable
9Wrong determination

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HyperLeda Questions: prugniel@obs.univ-lyon1.fr