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Дата изменения: Mon Dec 23 18:23:59 2013 Дата индексирования: Fri Feb 28 09:08:25 2014 Кодировка: Поисковые слова: п п п п п п п п п п |
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The Library of Medium Resolution Spectra |
| HyperLeda home | Documentation | Search by name | Search near a position | Define a sample | SQL Search | |
2. At present, the disk storage requested to start with this project (we will archive 1000 files of 1Mo) is:
Function | Machine | Volume |
---|---|---|
Developpement of the archive | galaxies or cumulus | 1+1 Go |
Inclusion in HyperLeda | galaxies | 1+1 Go |
Mirror on cumulus | cumulus | 1 Go |
3. The files are stored in the gzipped FITS format. The filenames are chosen
to be unique.
The archive will be divided in subdirectories in order to avoid problems
with some unix commands which have a limitation in the size of the argument or
number of files.
L | Identifiy the archive block (L for Lyon) dataset |
YY | Calendar year for the dataset |
MM | Ordinal number of a calendar month |
i | Identification of the dataset in the observing run (1 digit) |
OB | Code for the observatory (eg. HP for Observatoire de Haute-Provence |
j | Number describing the telescope used |
nnnn | Identification number of the file, the fits.gz extension is omitted when referencing the frames in HyperLeda, but is exists |
93111OHP1/ / / archive_root -- 95071ESO1/ \ \ 98031OHP2/Each directory in this tree must contains a AAAReadMe.txt file. These file are writen in free format and are not (yet) indended for any automatic processing... but it is advised to follow as far as possible a template taken for already existing files, in order to define a standard which could be, in the future, used by automatic procedures.
HyperLeda | Questions: leda@univ-lyon1.fr |