Coordinate units conversion

Created: 2013-04-12 18:12:58 Last updated: 2013-04-22 12:11:41

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Snippet showing how to use AstroTaverna tool for coordinate units conversion. The input is a VOTable with three columns: SourceName, RA_J2000, DEC_J2000 in units degrees. Two conversions are performed on the coordinates for Right Ascension, first from degrees to radians, and a second one from radians to RA hours:minutes:seconds. Choices on the units to convert from and to may be set up in service configuration: right click on box "Coordinate units conversion".

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Workflow Components

Authors (1)

Titles (1)

Descriptions (1)

Dependencies (0)

Inputs (1)

Name	Description
VOTable	Initial VOTable

Processors (6)

Name	Type	Description
Degrees_to_Radians	tpipe
nameColumn_value	stringconstant	Value RA_J2000
nameNewCol_value	stringconstant	Value RA_Radians
Radians_to_Hms	tpipe
nameColumn_value_1	stringconstant	Value RA_Radians
nameNewCol_value_1	stringconstant	Value RA_Hms

Beanshells (0)

Outputs (1)

Name	Description
UnitsConvertedVOTable

Datalinks (7)

Source	Sink
nameColumn_value:value	Degrees_to_Radians:nameColumn
nameNewCol_value:value	Degrees_to_Radians:nameNewCol
VOTable	Degrees_to_Radians:voTable
Degrees_to_Radians:outputTable	Radians_to_Hms:voTable
nameColumn_value_1:value	Radians_to_Hms:nameColumn
nameNewCol_value_1:value	Radians_to_Hms:nameNewCol
Radians_to_Hms:outputTable	UnitsConvertedVOTable