Hello,
I try to parse a CDM message emitted by CAESAR (it’s the same for CDMs from CSpOC) and I have a problem with the parsing of the REF_FRAME field in the metadata.
Example:
<metadata>
<OBJECT>OBJECT2</OBJECT>
<OBJECT_DESIGNATOR>13600</OBJECT_DESIGNATOR>
<CATALOG_NAME>SATCAT</CATALOG_NAME>
<OBJECT_NAME>COSMOS 1412</OBJECT_NAME>
<INTERNATIONAL_DESIGNATOR>1982-099A</INTERNATIONAL_DESIGNATOR>
<OBJECT_TYPE>PAYLOAD</OBJECT_TYPE>
<OPERATOR_CONTACT_POSITION>https://www.space-track.org/expandedspacedata/query/class/organization/object/~~13600/orderby/ORG_NAME,INFO_ID/format/html/emptyresult/show/</OPERATOR_CONTACT_POSITION>
<OPERATOR_ORGANIZATION>- Whitelist-Show public CDMs</OPERATOR_ORGANIZATION>
<OPERATOR_PHONE>https://www.space-track.org/expandedspacedata/query/class/organization/object/~~13600/orderby/ORG_NAME,INFO_ID/format/html/emptyresult/show/</OPERATOR_PHONE>
<OPERATOR_EMAIL>https://www.space-track.org/expandedspacedata/query/class/organization/object/~~13600/orderby/ORG_NAME,INFO_ID/format/html/emptyresult/show/</OPERATOR_EMAIL>
<EPHEMERIS_NAME>NONE</EPHEMERIS_NAME>
<COVARIANCE_METHOD>CALCULATED</COVARIANCE_METHOD>
<MANEUVERABLE>N/A</MANEUVERABLE>
<REF_FRAME>ITRF</REF_FRAME>
<GRAVITY_MODEL>EGM-96: 36D 36O</GRAVITY_MODEL>
<ATMOSPHERIC_MODEL>JBH09</ATMOSPHERIC_MODEL>
<N_BODY_PERTURBATIONS>MOON,SUN</N_BODY_PERTURBATIONS>
<SOLAR_RAD_PRESSURE>YES</SOLAR_RAD_PRESSURE>
<EARTH_TIDES>YES</EARTH_TIDES>
<INTRACK_THRUST>NO</INTRACK_THRUST>
</metadata>
In my CDM message, the REF_FRAME field is set to “ITRF” without any date (“ITRF2020” or “ITRF-97” for example) and it isn’t recognized during the parsing. The parsing can’t be done correctly by the “parse” method of the CelestialBodyFrame class with only “ITRF” as the frame because there is no enum entry for just ITRF.
Is it a problem in the parsing or do I missed something in the configuration of the CDM parser ?
CdmParser parser = new ParserBuilder()
.withConventions(IERSConventions.IERS_2010)
.withSimpleEOP(false)
.withDataContext(DataContext.getDefault())
.buildCdmParser();
final DataSource source = new DataSource(input.CdmFilename);
Cdm message = parser.parseMessage(source);
The call of parseMessage goes well but, when I call message.getMetadataObject2().getRefFrame().asFrame(), I don’t get a correct frame.
Is anybody already parsed correctly this kind of message with ITRF as the REF_FRAME ?
Thank you!
