2.7.1 https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available SPASE metadata descriptions spase://NASA/NumericalData/IMAGE/RPI/PGM/CDF/PT5M NASA NumericalData IMAGE Radio Plasma Imager (RPI) Plasmagram data in CDF at NASA CDAWeb https://doi.org/10.48322/ssj2-gs96 2025-12-04T13:29:33Z 2020-07-07T21:14:38Z Only known prior ReleaseDate of the metadata 2025-11-14T16:03:03Z Added PublicationInfo. Added ResourceType and NamingAuthority. Changed http to https in top-level schemaLocation attribute. Fixed version number separator in top-level schemaLocation attribute. Matched version number in schemaLocation attribute to updated value in Version tag. ZCB 2025-12-04T13:29:33Z Added MetadataRightsList and RightsList(s). Updated to 2.7.1. ZCB Software suggested by the science team for CDF file visualization: (1) Plotting tool at the CDAWeb portal, (2) For analysis beyond static image inspection, including color scale optimization, zooming, text export, alternative data representations in physical units, detailed frequency and time information, overlaid model fpe and fce graphs, and EPS quality figures, use BinBrowser software at UML, http://ulcar.uml.edu/rpi.html Users please acknowledge Coordinated Data Analysis Web (CDAWeb) at the NASA Goddard Space Flight Center and RPI Principal Investigator Prof. B. W. Reinisch of the University of Massachusetts Lowell for making these CDF files available. Reinisch, Bodo W. 2025-11-14T16:03:03Z Space Physics Data Facility spase://SMWG/Person/Bodo.W.Reinisch PrincipalInvestigator spase://SMWG/Person/Ivan.A.Galkin DataProducer TechnicalContact IMAGE RPI Instrument Page https://image.gsfc.nasa.gov/rpi/ IMAGE RPI Instrument page maintained by NASA GSFC with RPI facts, description, team, data, documents, discoveries, and related links sections en IMAGE RPI Instrument Page at UML https://ulcar.uml.edu/rpi.html IMAGE RPI Instrument page maintained by University of Massachusetts Lowell with RPI description, team, software downloads, software user guides, access to CORPRAL automated prospecting results, mission planning tools and commanding guide, data model descriptions for Level 0 and 1, sonification files of 2003 Halloween storm, and useful links en spase://NASA/NumericalData/IMAGE/RPI/PGM/CCSDS/PT5M Other spase://VWO/NumericalData/IMAGE/RPI/PGM.CDF.PT5M spase://VSPO/NumericalData/IMAGE/RPI/PGM/CCSDS/PT5M spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open https://spdx.org/licenses/ SPDX CC0-1.0 https://spdx.org/licenses/CC0-1.0.html Creative Commons Zero v1.0 Universal CC0 1.0 Universal is the Creative Commons license applicable to all publicly available NASA Heliophysics data products CDAWeb FTP access to IMAGE RPI wave measurements (plasmagrams) ftps://cdaweb.gsfc.nasa.gov/pub/data/image/rpi/ FTP access to repository of IMAGE RPI Plasmagrams in CDF format at NASA CDAWeb. en CDAWeb access portal to IMAGE RPI Plasmagrams https://cdaweb.gsfc.nasa.gov/istp_public/ Repository of IMAGE RPI Plasmagrams in CDF format at NASA CDAWeb, accessible via web interface. Name of the data resource: IM_K0_RPI. en CDF None Users please acknowledge Coordinated Data Analysis Web (CDAWeb) at the NASA Goddard Space Flight Center and RPI Principal Investigator Prof. B. W. Reinisch of the University of Massachusetts Lowell for making these CDF files available. Calibrated Calibrated data in physical units. Spacecraft MET to UT is converted using history of IMAGE observatory clock drift. spase://SMWG/Instrument/IMAGE/RPI Waves.Passive Spectrum 2000-03-26T07:51:50Z 2005-12-18T07:40:47Z In Cadence below, the 5 minutes refers to the nominal interval between measurements. Actual cadence of passive measurement varied between 3 to 6 minutes depending on the RPI science plan and design of measurement schedules. PT5M PT72S RadioFrequency Earth.Magnetosphere Earth.NearSurface.Plasmasphere Earth.NearSurface.AuroralRegion Earth.NearSurface.PolarCap Heliosphere.Inner Dynamic Spectrogram Spectrogram AKR Auroral hiss Auroral Kilometric Radiation Chorus Continuum radiation Myriametric radiation Plasmaspheric Hiss Solar radio burst Terrestrial Kilometric Radiation TKR Type II Solar radio burst Type III Solar radio burst UHR Upper hybrid resonance VLF Station VLF Transmitter Whistler spase://NASA/NumericalData/IMAGE/RPI/PGM/CCSDS/PT5M Echo Amplitude Amplitude Echo Amplitude Image [nV]. PT5M 3/4 dBnV/m PlasmaWaves Magnitude Spectral Pseudo Intensity RadioFrequency 3 1009 kHz Most Probable Amplitude MPA Most probable amplitude 3/4 dBnV/m 0 256 -32768 Other Frequency Frequency PT5M kHz 256 Linear 1D array of frequency values, up to 256. Actual number of frequencies for which the voltage spectral density values were measured depends on the choice of frequency sweep (see "Number of Frequencies" parameter and its description below). The "256" value stated in Size is the upper limit. Frequency -1 3 3000 -1.0e+031 Other Actual Number of Frequencies NumFreqs Number of frequencies. Detailed plasmagram picture has the original number of frequencies as specified by RPI measurement parameters. Frequency axis varies from plasmagram to plasmagram. Plasmagram *thumbnails* have a fixed frequency axis. The original plasmagram data often requires transformation into thumbnail format by averaging. 0 256 -32768 Other Time Line Epoch Plasmagram Time. The time in EPOCH referes to the beginning of the plasmagram, Use Duration_ms to obtain stop time of the run. The 5 minutes refers to the nominal interval between measurements. Actual cadence of passive measurement varied between 3 to 6 minutes depending on the RPI science plan and design of measurement schedules. PT5M ms Temporal Measurement Duration Duration_ms Duration of one plasmagram measurement. ms Temporal Base Gain BaseGain Instrument setting describing receiver gains in X/Y and Z channels, encoded. See data model description at http://ulcar.uml.edu/rpi.html for additional details on base gain decoding procedure. 0 16 255 Other Program Specifications ProgramSpecs List of 25 parameter values that specify RPI instrument configuration during the measurement. For further detail on parameter value interpretation see data model description document at http://ulcar.uml.edu/rpi.html. PT5M 25 Linear 1D array of values used to configure RPI instrument for a measurement mode. RPI Parameter -1 Other Nadir crossing MET NadirMET Nadir crossing MET is the reference MET that uniquely identifies all RPI measurements. MET of the last Nadir crossing before the measurement starts. PT5M 0.1 s Temporal Start MET StartMET Measurement start MET. Start MET is derived using the Nadir crossing MET and the time offset from the first packet header. Might not be unique due to telemetry losses. PT5M 0.1s Temporal Operating Mode OpMode Calibration, Sounding, Thermal Noise, Relaxation, Whistler, Test Pattern. PT5M Other Number of Dopplers NumDopplers PT5M Other Pulse Repetition Rate RepetitionRate 0.5 pps (1 pulse every 2 sec), 1 pps, 2 pps, 4 pps, 10 pps, 20 pps, 50 pps. PT5M Hz Other Xmtr Antenna Setting XmtrAntenna 1= Radio Silence (no Tx), 2= X antenna only, 3= Y antenna only, 4= X+Y Linearly polarized, 5= X+Y Right Circularly Polarized, 6= X+Y Left Circularly Polarized, 7= X+Y Right/Left Alternated, 8= X+Y Lin/Lin90 Alternated. PT5M Other Coupler Mode Couplers 0= OFF (untuned), 1= ON (tuned) PT5M Other Operating Mode Waveform 1= 16-chip complementary, 2= FM Chirp, 3= Staggered Pulse Sequence, 4= Long Pulse, 5= Short Pulse, 6= 0.5 s Pulse, 7= 1.95 s Pulse, 8= 8-chip complementary, 9= 4-chip complementary. PT5M Other Gain Control GainControl 0= Fixed Gain, 1= Auto Gain. PT5M Other Frequency Search Enabled FreqSearch 0= Search of quiet frequencies disabled, 1= Search of quiet frequencies enabled. PT5M Other Peak Power Constraint PeakPower Total RPI Peak Power Consumption Constraint. PT5M Watts Other Actual Number of Ranges NumRanges Number of Ranges, depending on program setting and processing. PT5M Other Range Range Range readings for 151 range bins. PT5M Re Other Echo Azimuth angle Azimuth Echo Azimuth angle. Values 0 to 254 cover 0 to 360 degrees. PT5M 360/254 deg Other Echo Zenith angle Zenith Echo Zenith angle. PT5M deg Other Echo Doppler Number DopplerNumber Echo Doppler Number. PT5M steps Other Doppler Translation DopplerTranslation Translates Doppler Number to an actual Doppler Frequency. The entries are calculated from program parameters. PT5M Hz Other