Sloan Digital Sky Survey
Virtual Observatory developments @JHU

NVO Virtual Observatory Initiative

For details of the VO see the VO web-site.
Many services are described at voservives.org.

Mirage

Mirage is a data analysis tool developed at Bell Labs by Tin Kam Ho.
A modified version of Mirage which reads VOTables is available here.

Download Manager and Fits Image module

The modules built in mirage are available seperately for download and integration in your application !
Download Manager talks to the registry, CONE and SIAP services (in java)
FITS image module renders images from FITS files (in Java)

Web Services

The initiative currently has a number of nascent protocols - here at JHU we have implemented some of the required services using C# .NET.
We also have many other web services.
A java client has been developed for the Cutout Service showing how easily a binary object may be passed using DIME.
Service Example Info URL
VO spectral service SDSS Filters Web Site http://voservices.net/filter/ws_v2_0/search.asmx
SDSS SQL job system top 10 galaxies Web Site http://casjobs.sdss.org/CasJobs/CasJobs.asmx
Searchable Registry(with STScI) Query page index page http://nvo.stsci.edu/voregistry/registry.asmx
Cone Search(EDR,DR1,DR2) Small Cone Form http://skyserver.sdss.org/vo/dr2cone/sdssconesearch.asmx
SIAP like service but not returning VOTable(EDR,DR1,DR2) Small Cone Form http://skyserver.sdss.org/vo/dr2fields/sdssFields.asmx
Simple Image Access Protocol Small Cone Form http://skyserver.sdss.org/vo/dr2siap/SIAP.asmx
Image Cutout - not SIAP Chart Java client http://skyservice.pha.jhu.edu/dr2/ImgCutout/ImgCutout.asmx
NED service Small cone Obj. Near Pos. Form http://voservices.net/NED/ws_v1_0/NED.asmx
Cosmological distance calculator dL(z=0.5) in LCDM Form http://voservices.net/Cosmology/ws_v1_0/Distance.asmx
Produce color coded density maps for query Seeing map Index page http://skyservice.pha.jhu.edu/devel/DensityMap/DensityMap.asmx

There are also some libraries that are available for download.

Libraries

Library Info URL
C# FITS Library A C#.NET port of Tom McGlynn's Java nom.tam.fits library http://skyservice.pha.jhu.edu/develop/vo/CSharpFits

Ani Thakar
Last Modified :Wednesday, January 24, 2007 at 12:28:43 AM , $Revision 1.8 $