Bright stars (TOPCAT example)
DigitalObject
· http://example.org/archive/digital-object-44207833
Format
Representation Information Network →
Its format hasn't been identified yet.
Write it out
Download the data description →
Its Representation Information, with all it needs, as a zip: description.ttl and each structure description and view specification (DFDL, Kaitai Struct, DRB, ...) as a file.
Open the data
This Data Object's bits have a storage location, and its Representation Information says how to read them. Its Representation Information manifest (Turtle) names the data and each description explicitly; TOPCAT (with the oais-structure-topcat reader, format OAIS-RepInfo) and SPLAT open it by that address.
"View with TOPCAT" or "SPLAT" sends the data, decoded on the server as a VOTable, to that application running on your computer (over SAMP; it asks you to allow this page). SPLAT is offered when the table's columns are all numeric, as a spectrum's are. The VOTable link works in any VO tool. The same choices are on the Data Object's right-click menu in the graph.
No TOPCAT or SPLAT on your computer? "Launch" starts the application with this data already loaded, downloaded from the archive, with nothing to install or connect — once you have OpenWebStart (free, installed once; it opens the .jnlp file the link downloads). The application is signed with this archive's own self-signed certificate: the first time, OpenWebStart asks whether to trust it; choose to always trust this publisher, and later launches won't ask.
See the values here
Decodes the data on the server through its Representation Information and prints each value, with where it is in the bits and what it means (its meaning, a code's meaning, a scaled value with its units), as RepInfo Tools does for a sample file — a page at a time, so a large file doesn't swamp the browser. The first page of a large file takes a while to decode; the pages after it don't.
| Element | Kind | Value | Meaning | Position |
|---|
Preserve it by Transformation
Rewrite it in another format described in the archive, check its Transformational Information Properties, and record the result as a new Data Object in an AIP Version.
Its Archival Information Package
Its identifier, which other AIPs can refer to:
http://example.org/archive/digital-object-44207833
Properties
| label | Bright stars (TOPCAT example) |
Links to
- hasGapAnalysis → Gap analysis: 1 gap
- hasStorageLocation → bright-stars.bin
- interpretedUsing → Representation Information for Bright star catalogue
Linked from
- Fixity check: missing target → checkedObject