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Virtual Solar Observatory (VSO)

Department:	Independent Agency
Agency:	National Aeronautics and Space Administration (NASA) (http://www.nasa.gov/home/index.html )
Sub Agency:	Goddard Space Flight Center (http://www.nasa.gov/centers/goddard/home/index.html ), Solar Physics Branch

Description:

The VSO (http://umbra.nascom.nasa.gov/vso/) is an interconnected system of software to permit consumers to easily find and request data products of interest. As of this writing, there are two main functions of the VSO -- finding data products (acting as an Access Aid), and negotiating for the delivery of data products (acting as an Ordering Aid).
The VSO unites access to space- and ground-based observations of the Sun. This allows anyone who has an interest in solar data to find image and other data files to search using traditional instrument names, by type of data (e.g., "magnetogram") or by event (e.g., data associated with a particular solar flare or active region).

Help/Documentation:

http://vso.nascom.nasa.gov/API/VSO_API.html, http://vso.nascom.nasa.gov/API/

WSDL/Data Location:

http://vso.nascom.nasa.gov/API/sdacVSOi_strict.wsdl

Operations:

Operation Description
GetData Used to order data products.
Query Used to query the database for solar physics data products.

Support:	http://virtualsolar.org/feedback/
Example:	NASA_VSO

.
.
.
gov.nasa.nascom.vso.VSOiService svc = new gov.nasa.nascom.vso.VSOiService();

// perform the Query operation
gov.nasa.nascom.vso.QueryRequest qr = new gov.nasa.nascom.vso.QueryRequest();
qr.block = new NASA_VSO.gov.nasa.nascom.vso.QueryRequestBlock();
qr.block.instrument = "EIT";

qr.block.time = new gov.nasa.nascom.vso.Time();
qr.block.time.start = "20040101000000";
qr.block.time.end = "20040201000000";

qr.version = (float) 0.6;

try
{
    gov.nasa.nascom.vso.ProviderQueryResponse[] pqr = svc.Query(qr);
    //MessageBox.Show("Number of Provider Query Responses returned [" + pqr.Count().ToString() + "]");

    for (int i = 0; i < pqr.Count(); i++)
    {
        if (pqr[i].error == null)
        {
            MessageBox.Show("Number of records found [" + pqr[i].no_of_records_found.ToString() + "]");
        }
        else
        {
            MessageBox.Show(pqr[i].error);
        }
    }
}
catch (Exception ex)
{
    MessageBox.Show(ex.Message);
}

svc.Dispose();
svc = null;
.
.
.