@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix org: <http://www.w3.org/ns/org#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.nasa.gov/dataset/6c7afbc9-4672-444a-a2c3-6495a2e36eed> a dcat:Dataset ;
    dct:description """Wave Normal Analysis survey data products, derived from the Van Allen Probes B EMFISIS Wave Form Receiver Electric (E) and Magnetic Field (B) onboard averaged power spectral matrices. The survey data consists of E and B measurements from 6 orthogonal antenna at 65 logarithmically spaced frequency measurements from 2 to 11240 Hz at a cadence of 6 sec. Besides wave normal angle, some of the other products are magnetic ellipticity, degree of polarization, planarity, Poynting flux. The products are produced via PRASSADCO (Santolik, et al., 2003). A correction for antenna sheath effects has been applied to the electric field data, before being input to PRASSADCO. The correction is density-dependent, so fill values are inserted for E-dependent data where a density estimate is not available. Be aware that the spin-plane E antennas began deployment at 2012-09-13T19:44 and were not fully deployed until 2012-09-22T19:48. The spin-axis deployment began on 2012-09-24T17:59 and did not fully complete until 2012-12-07T04:41. Noise levels in the E data are increased by incomplete antenna deployment. There was a significant upgrade to the onboard calibration tables, for both E and B in Feb 2013. Prior to this, the highest survey frequency bin (11.24 kHz) used a flawed calibration value that resulted in both amplitude and phase errors. The effect is stronger for the B data. New, corrected, tables took effect at 2013-02-12T04:30:00. In Mar 2013, there was a ~2-day interval where a software issue resulted in the wrong calibration tables being used for both E and B data. These data should be used with extreme caution. The interval is 2013-03-21T06:53:00 to 2013-03-23T05:46:00.

         Santolík, O., M. Parrot, and F. Lefeuvre (2003), Singular value decomposition methods for wave propagation analysis, Radio Sci., 38, 1010, doi:10.1029/2000RS002523, 1.""" ;
    dct:identifier <https://doi.org/10.48322/pv9p-1b29> ;
    dct:issued "2026-11-03T09:13:56.212864"^^xsd:dateTime ;
    dct:modified "2026-11-02T22:16:02+00:00"^^xsd:dateTime ;
    dct:publisher <https://data.nasa.gov/organization/dbb294e4-8597-44f5-aaf4-c0baac12cdbc> ;
    dct:title "Van Allen Probe B WFR Wave Normal Angle and other Sheath-Corrected-E Polarization Parameters at 6 s cadence" ;
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            vcard:hasEmail <mailto:NASA-SPDF-Support@nasa.onmicrosoft.com> ] ;
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    dcat:keyword "waves" ;
    dcat:theme <%7BHeliophysics%7D> .

<https://data.nasa.gov/dataset/6c7afbc9-4672-444a-a2c3-6495a2e36eed/resource/01ca1425-7dbf-4cc1-aa82-e4b3066ef23e> a dcat:Distribution ;
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<https://data.nasa.gov/dataset/6c7afbc9-4672-444a-a2c3-6495a2e36eed/resource/0eabb180-6860-49f4-94d3-55aad88632f7> a dcat:Distribution ;
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    dcat:accessURL <http://emfisis.physics.uiowa.edu/> ;
    dcat:mediaType "application/octet-stream" .

<https://data.nasa.gov/dataset/6c7afbc9-4672-444a-a2c3-6495a2e36eed/resource/2231fe16-5b59-4b0b-84b4-6de42cd2f100> a dcat:Distribution ;
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    dcat:accessURL <https://doi.org/10.1007/s11214-023-00973-z> ;
    dcat:mediaType "text/html" .

<https://data.nasa.gov/dataset/6c7afbc9-4672-444a-a2c3-6495a2e36eed/resource/4db70476-0d0f-4fcb-9969-0327c7833ca1> a dcat:Distribution ;
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    dcat:mediaType "application/octet-stream" .

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    dcat:accessURL <https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=RBSP-B_WNA-SURVEY-SHEATH-CORRECTED-E_EMFISIS-L4&index=sp_phys> ;
    dcat:mediaType "application/octet-stream" .

<https://data.nasa.gov/dataset/6c7afbc9-4672-444a-a2c3-6495a2e36eed/resource/81f54b0a-3b36-4864-9efe-3f416c9cd256> a dcat:Distribution ;
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    dcat:accessURL <https://api.heliocloud.org/cloudcatalog?id=RBSP-B_WNA-SURVEY-SHEATH-CORRECTED-E_EMFISIS-L4> ;
    dcat:mediaType "application/octet-stream" .

<https://data.nasa.gov/dataset/6c7afbc9-4672-444a-a2c3-6495a2e36eed/resource/dc9ca3d1-3cdc-44dd-ae02-cdee62d38a19> a dcat:Distribution ;
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<https://data.nasa.gov/dataset/6c7afbc9-4672-444a-a2c3-6495a2e36eed/resource/e5285720-3a59-4582-87c6-d52a975e9558> a dcat:Distribution ;
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    dct:modified "2026-11-03T09:13:56.205275"^^xsd:dateTime ;
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