2.4.0 spase://NASA/NumericalData/RBSP/A/EFW/L2/SPEC/PT4S Van Allen Probe A Spectrogram Data 2022-05-25T12:34:56.789 2021-04-27T15:38:11 Only known prior metadata Release Date 2022-05-25T12:34:56.789 Updated to SPASE Version 2.4.0, replace apostrophes, no-break space and other spurious text, metadata revised by LFB This data set contains Level 2 wave electric field and search coil wave magnetic fields spectral data from the Electric Field and Waves Suite (EFW) onboard Van Allen Probe A. Spectrograms between ~40 Hz and ~8 kHz are calculated on-board the EFW instrument every 4 seconds. These data include one component of the ac-coupled electric field from the rotating V12 sensors (V12ac). The electric field quantity is labeled EFW/L2. Also included are two components of the wave magnetic field from the University of Iowa EMFISIS sensors. The search coil quantities are labeled EFW/L2 spec64 smu. In the labels "smu" and "smv", the suffixes "u" and "v" refer to the u and v sensor coordinates rotating with the spacecraft. All these quantities, the nature of the on board signal processing, their filtering, time resolution and their respective coordinate systems are described in the EFW instrument paper (Wygant et al. 2013). When the spectral CDF is opened, many other possible quantities are listed which have no data in them. Possible sources include: * E12dc * E34dc * E56dc * E12ac * E34ac * E56ac * E DC parallel * E DC perpendicular 1 * E DC perpendicular 2 * E AC parallel * E AC perpendicular 1 * E AC perpendicular 2 * V1+V2+V3+V4/4AC * SCMu * SCMv * SCMw * SCM parallel * SCM perpendicular 1 * SCM perpendicular 2 Those without data are "place holder quantities" which are used by other instrument modes not currently selected. Examples of the spectral data may be found in Principal Investigator's on-line survey data plots. EMFISIS instrument wave data may be found on the University of Iowa website. This includes valuable spectral electric field data up to 400 kHz and magnetic field data up to about ~6 kHz. NASA Space Physics Data Facility (SPDF) CDAWeb. spase://SMWG/Person/John.R.Wygant PrincipalInvestigator spase://SMWG/Person/Robert.E.McGuire GeneralContact spase://SMWG/Person/Lee.Frost.Bargatze MetadataContact EFW home page at the University of Minnesota http://rbsp.space.umn.edu EFW Data Required Reading The Van Allen Probes Home Page https://vanallenprobes.jhuapl.edu Science Gateway (including Mission Rules of the Road for Data Usage) spase://VSPO/NumericalData/RBSP/A/EFW/L2_SPEC/PT4S spase://ViRBO/NumericalData/RBSP/A/EFW/L2/SPEC/UTC spase://VSPO/NumericalData/RBSP/A/EFW/L2/SPEC/PT4S spase://SMWG/Repository/NASA/GSFC/SPDF Online Open FTPS from SPDF (not with most browsers) ftps://spdf.gsfc.nasa.gov/pub/data/rbsp/rbspa/l2/efw/spec/ In CDF via ftp from CDAWeb HTTPS from SPDF https://spdf.gsfc.nasa.gov/pub/data/rbsp/rbspa/l2/efw/spec/ In CDF via HTTP from SPDF CDF Please acknowledge the PI and the CDAWeb team at GSFC/SPDF. spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=RBSPA_EFW-L2_SPEC&index=sp_phys RBSPA_EFW-L2_SPEC Text spase://SMWG/Repository/NASA/GSFC/SPDF Online Open CDAWeb HAPI Server https://cdaweb.gsfc.nasa.gov/hapi RBSPA_EFW-L2_SPEC@0 RBSPA_EFW-L2_SPEC@1 Web Service to this product using the HAPI interface. CSV spase://SMWG/Instrument/RBSP/A/EFW ElectricField Waves Spectrum 2012-09-05T14:36:01.000Z 2019-10-18T16:30:00Z spec64_fcenter spec64_fcenter spec64_fcenter Center frequency for the SPEC 64 bins Hz 64 Other spec32_fcenter spec36_fcenter spec32_fcenter Center frequency for the SPEC 36 bins Hz 36 Other spec112_fcenter spec112_fcenter spec112_fcenter Center frequency for the SPEC 112 bins Hz 112 Other spec64_compno spec64_compno spec64_compno 64 Other spec36_compno spec36_compno spec36_compno 36 Other spec112_compno spec112_compno spec112_compno 112 Other Time, UTC epoch Time, UTC Time tags for the survey quantities ps Other spec64_e12dc spec64_e12dc [64 FREQUENCIES] E12 DC 64 bin spectrogram for E12DC 64 Other spec64_e12ac spec64_e12ac E12 AC 64 bin spectrogram for E12AC 64 Other spec64_e34dc spec64_e34dc E34 DC 64 bin spectrogram for E34DC 64 Other spec64_e34ac spec64_e34ac E34 AC 64 bin spectrogram for E34AC 64 Other spec64_e56dc spec64_e56dc E56 DC 64 bin spectrogram for E56DC 64 Other spec64_e56ac spec64_e56ac E56 AC 64 bin spectrogram for E56AC 64 Other spec64_epar_dc spec64_epardc [64 FREQUENCIES] E-parallel DC 64 bin spectrogram for Eparallel DC 64 Other spec64_eperp1dc spec64_eperp1dc E-perpendicular-1 DC 64 bin spectrogram for Eperp1 DC 64 Other spec64_eparac spec64_eparac E-parallel AC 64 bin spectrogram for Eparallel AC 64 Other spec64_eperp1ac spec64_eperp1ac E-perpendicular-1 AC 64 bin spectrogram for Eperp1 AC 64 Other spec64_eperp2dc spec64_eperp2dc E-perpendicular-2 DC 64 bin spectrogram for Eperp2 DC 64 Other spec64_eperp2ac spec64_eperp2ac E-perpendicular-2 AC 64 bin spectrogram for Eperp2 AC 64 Other spec64_v1ac spec64_v1ac [64 FREQUENCIES] V1 AC 64 bin spectrogram for V1AC 64 Other spec64_v2ac spec64_v2ac V2 AC 64 bin spectrogram for V2AC 64 Other spec64_v3ac spec64_v3ac V3 AC 64 bin spectrogram for V3AC 64 Other spec64_v4ac spec64_v4ac V4 AC 64 bin spectrogram for V4AC 64 Other spec64_v5ac spec64_v5ac V5 AC 64 bin spectrogram for V5AC 64 Other spec64_v6ac spec64_v6ac V6 AC 64 bin spectrogram for V6AC 64 Other spec64_v1234_avg spec64_v1234_avg (V1+V2+V3+V4)/4 AC 64 bin spectrogram for (v1+v2+v3+v4)/4 64 Other spec64_scmu spec64_scmu [64 FREQUENCIES] SCM u 64 bin spectrogram for SCMu 64 Other spec64_scmv spec64_scmv SCM v 64 bin spectrogram for SCMv 64 Other spec64_scmw spec64_scmw SCM w 64 bin spectrogram for SCMw 64 Other spec64_scmpar spec64_scmpar --> SCM parallel 64 bin spectrogram for SCMpar 64 Other spec64_scmperp1 spec64_scmperp1 SCM perpendicular-1 64 bin spectrogram for SCMperp1 64 Other spec64_scmperp2 spec64_scmperp2 SCM perpendicular-2 64 bin spectrogram for SCMperp2 64 Other spec36_e12dc spec36_e12dc [36 FREQUENCIES] E12 DC 36 bin spectrogram for E12DC 36 Other spec36_e12ac spec36_e12ac E12 AC 36 bin spectrogram for E12AC 36 Other spec36_e34dc spec36_e34dc E34 DC 36 bin spectrogram for E34DC 36 Other spec36_e34ac spec36_e34ac E34 AC 36 bin spectrogram for E34AC 36 Other spec36_e56dc spec36_e56dc E56 DC 36 bin spectrogram for E56DC 36 Other spec36_e56ac spec36_e56ac E56 AC 36 bin spectrogram for E56AC 36 Other spec36_epar_dc spec36_epardc [36 FREQUENCIES] E-parallel DC 36 bin spectrogram for Eparallel DC 36 Other spec36_eperp1dc spec36_eperp1dc E-perpendicular-1 DC 36 bin spectrogram for Eperp1 DC 36 Other spec36_eparac spec36_eparac E-parallel AC 36 bin spectrogram for Eparallel AC 36 Other spec36_eperp1ac spec36_eperp1ac E-perpendicular-1 AC 36 bin spectrogram for Eperp1 AC 36 Other spec36_eperp2dc spec36_eperp2dc E-perpendicular-2 DC 36 bin spectrogram for Eperp2 DC 36 Other spec36_eperp2ac spec36_eperp2ac E-perpendicular-2 AC 36 bin spectrogram for Eperp2 AC 36 Other spec36_v1ac spec36_v1ac [36 FREQUENCIES] V1 AC 36 bin spectrogram for V1AC 36 Other spec36_v2ac spec36_v2ac V2 AC 36 bin spectrogram for V2AC 36 Other spec36_v3ac spec36_v3ac V3 AC 36 bin spectrogram for V3AC 36 Other spec36_v4ac spec36_v4ac V4 AC 36 bin spectrogram for V4AC 36 Other spec36_v5ac spec36_v5ac V5 AC 36 bin spectrogram for V5AC 36 Other spec36_v6ac spec36_v6ac V6 AC 36 bin spectrogram for V6AC 36 Other spec36_v1234_avg spec36_v1234_avg (V1+V2+V3+V4)/4 AC 36 bin spectrogram for (v1+v2+v3+v4)/4 36 Other spec36_scmu spec36_scmu [36 FREQUENCIES] SCM u 36 bin spectrogram for SCMu 36 Other spec36_scmv spec36_scmv SCM v 36 bin spectrogram for SCMv 36 Other spec36_scmw spec36_scmw SCM w 36 bin spectrogram for SCMw 36 Other spec36_scmpar spec36_scmpar --> SCM parallel 36 bin spectrogram for SCMpar 36 Other spec36_scmperp1 spec36_scmperp1 SCM perpendicular-1 36 bin spectrogram for SCMperp1 36 Other spec36_scmperp2 spec36_scmperp2 SCM perpendicular-2 36 bin spectrogram for SCMperp2 36 Other spec112_e12dc spec112_e12dc [112 FREQUENCIES] E12 DC 112 bin spectrogram for E12DC 112 Other spec112_e12ac spec112_e12ac E12 AC 112 bin spectrogram for E12AC 112 Other spec112_e34dc spec112_e34dc E34 DC 112 bin spectrogram for E34DC 112 Other spec112_e34ac spec112_e34ac E34 AC 112 bin spectrogram for E34AC 112 Other spec112_e56dc spec112_e56dc E56 DC 112 bin spectrogram for E56DC 112 Other spec112_e56ac spec112_e56ac E56 AC 112 bin spectrogram for E56AC 112 Other spec112_epar_dc spec112_epardc [112 FREQUENCIES] E-parallel DC 112 bin spectrogram for Eparallel DC 112 Other spec112_eperp1dc spec112_eperp1dc E-perpendicular-1 DC 112 bin spectrogram for Eperp1 DC 112 Other spec112_eparac spec112_eparac E-parallel AC 112 bin spectrogram for Eparallel AC 112 Other spec112_eperp1ac spec112_eperp1ac E-perpendicular-1 AC 112 bin spectrogram for Eperp1 AC 112 Other spec112_eperp2dc spec112_eperp2dc E-perpendicular-2 DC 112 bin spectrogram for Eperp2 DC 112 Other spec112_eperp2ac spec112_eperp2ac E-perpendicular-2 AC 112 bin spectrogram for Eperp2 AC 112 Other spec112_v1ac spec112_v1ac [112 FREQUENCIES] V1 AC 112 bin spectrogram for V1AC 112 Other spec112_v2ac spec112_v2ac V2 AC 112 bin spectrogram for V2AC 112 Other spec112_v3ac spec112_v3ac V3 AC 112 bin spectrogram for V3AC 112 Other spec112_v4ac spec112_v4ac V4 AC 112 bin spectrogram for V4AC 112 Other spec112_v5ac spec112_v5ac V5 AC 112 bin spectrogram for V5AC 112 Other spec112_v6ac spec112_v6ac V6 AC 112 bin spectrogram for V6AC 112 Other spec112_v1234_avg spec112_v1234_avg (V1+V2+V3+V4)/4 AC 112 bin spectrogram for (v1+v2+v3+v4)/4 112 Other spec112_scmu spec112_scmu [112 FREQUENCIES] SCM u 112 bin spectrogram for SCMu 112 Other spec112_scmv spec112_scmv SCM v 112 bin spectrogram for SCMv 112 Other spec112_scmw spec112_scmw SCM w 112 bin spectrogram for SCMw 112 Other spec112_scmpar spec112_scmpar --> SCM parallel 112 bin spectrogram for SCMpar 112 Other spec112_scmperp1 spec112_scmperp1 SCM perpendicular-1 112 bin spectrogram for SCMperp1 112 Other spec112_scmperp2 spec112_scmperp2 SCM perpendicular-2 112 bin spectrogram for SCMperp2 112 Other Time, UTC epoch_qual Timetags for elements of efw_qual The elements of efw_qual are determined on a fixed cadence regardless of the nominal cadence of the individual L2 data products, and epoch_qual provides storage for those fixed-cadence time tags.. ps Other EFW Data Quality Flags efw_qual An array that indicates a global estimate of EFW data quality, as well as a breakdown of observatory and instrument-level data quality issues that impact the global quality estimate.. The quality of EFW data products can be affected by a variety of observatory and instrument-level conditions. efw_qual is a collection of flags that show the estimate of each of these contributors over time. ..See the EFW-FAQ (http://rbsp.space.umn.edu/efw_faq.html) for a detailed description of the determination and meaning of each of the elements of efw_qual. If the value of a particular element of efw_qual is not relevant to the quality of a particular data product, it shall receive the value EFW_QUAL_NR (typ. -2). If the value of a particular element of efw_qual is relevant to the quality of a particular data product but is not known at the time lf L2 data production, it shall receive the value EFW_QUAL_UNK (typ. -1). A quality value of EFW_QUAL_GOOD (typ. 0) indicates that there are no known issues with the data product due to that particular element of efw_qual. The quality values are meant to be conservative, and values other than EFW_QUAL_GOOD should lead the user back to a member of the EFW instrument team for discussion and advice on the nature of the data quality as needed. 20 Other EFW Quality Flags Components epoch_qual_compno Component numbers for EFW data quality flags, efw_qual. none. 20 Other