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Cassini Radio and Plasma Wave Science (RPWS) Low Rate Full Resolution

ResourceID
spase://NASA/NumericalData/Cassini/RPWS/LRFULL/PT32S

Description

The Cassini Radio and Plasma Wave Science (RPWS) Low Rate Full Resolution Calibrated (RPWS_LOW_RATE_FULL) is a data set including all spectral density measurements acquired by the RPWS in units of electric or magnetic field spectral density. This data set includes calibrated values for each frequency channel for each sensor for all times during the mission including the two Venus flybys, the Earth flyby, the Jupiter flyby, interplanetary cruise, and the entire Saturn tour. Data for this data set are acquired from the RPWS Low Frequency Receiver (LFR), Medium Frequency Receiver (MFR), Medium Frequency Digital Receiver (MFDR) (which can be used to replace MFR band 2 data) and High Frequency Receiver (HFR). Data are presented in a set of tables organized so as to have fixed-length records for ease in data handling. This data set is intended to be the most comprehensive and complete data set included in the Cassini RPWS archive. A browse data set is included with these data which provides for a graphical search of the data using a series of thumbnail and full-sized spectrograms which lead the user to the particular data file(s) of interest. This data set should be among the first used by a user of any of the RPWS archive as it will lead one to information required to search for more detailed or highly specialized products.

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Details

Version:2.3.0

NumericalData

ResourceID
spase://NASA/NumericalData/Cassini/RPWS/LRFULL/PT32S
ResourceHeader
ResourceName
Cassini Radio and Plasma Wave Science (RPWS) Low Rate Full Resolution
AlternateName
Cassini Orbiter Radio and Plasma Wave Science
AlternateName
RPWS_RPWS_LOW_RATE_FULL
ReleaseDate
2020-07-07 21:14:30Z
Description

The Cassini Radio and Plasma Wave Science (RPWS) Low Rate Full Resolution Calibrated (RPWS_LOW_RATE_FULL) is a data set including all spectral density measurements acquired by the RPWS in units of electric or magnetic field spectral density. This data set includes calibrated values for each frequency channel for each sensor for all times during the mission including the two Venus flybys, the Earth flyby, the Jupiter flyby, interplanetary cruise, and the entire Saturn tour. Data for this data set are acquired from the RPWS Low Frequency Receiver (LFR), Medium Frequency Receiver (MFR), Medium Frequency Digital Receiver (MFDR) (which can be used to replace MFR band 2 data) and High Frequency Receiver (HFR). Data are presented in a set of tables organized so as to have fixed-length records for ease in data handling. This data set is intended to be the most comprehensive and complete data set included in the Cassini RPWS archive. A browse data set is included with these data which provides for a graphical search of the data using a series of thumbnail and full-sized spectrograms which lead the user to the particular data file(s) of interest. This data set should be among the first used by a user of any of the RPWS archive as it will lead one to information required to search for more detailed or highly specialized products.

Acknowledgement
When using this data please acknowledge the PI Donald A. Gurnett and Co-I William S. Kurth, NASA, the PDS and the VWO.
Contacts
RolePersonStartDateStopDateNote
1.PrincipalInvestigatorspase://SMWG/Person/Donald.A.Gurnett
2.CoInvestigatorspase://SMWG/Person/William.S.Kurth
3.MetadataContactspase://SMWG/Person/Raymond.J.Walker
InformationURL
Name
PDS/PPI
URL
Description

NASA's Planetary Plasma Interactions (PPI) Node of the Planetary Data System (PDS)

InformationURL
Name
Cassini RPWS Volume CORPWS_0172
URL
Description

The Cassini RPWS Volume 172 (typical) readme file with descriptions of the data, the organization of the data within the volume and associated software

PriorIDs
spase://VWO/NumericalData/Cassini/RPWS/LRFULL_PT32S
spase://VSPO/NumericalData/Cassini/RPWS/LRFULL/PT32S
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
CO RPWS
URL
Description

CASSINI ORBITER RADIO AND PLASMA WAVE SCIENCE

Format
Text
Encoding
ASCII
Acknowledgement
Please acknowledge the P.I. and NASA's Planetary Plasma Interactions (PPI) Node of the Planetary Data System (PDS)
ProviderResourceName
CO-V/E/J/S/SS-RPWS-3-RDR-LRFULL-V1.0
ProviderVersion
VERSION 1
InstrumentIDs
MeasurementType
Waves.Active
MeasurementType
Waves.Passive
MeasurementType
Spectrum
TemporalDescription
TimeSpan
StartDate
1997-10-25 00:00:00.000Z
RelativeStopDate
P300D
Note
The Cadence value is dependent on the operational mode. This value ranges from 64 seconds per cycle during cruise phase to as low as 8 seconds. In Saturn orbit, 32 seconds is the slowest cycle typically used.
Cadence
PT32S
SpectralRange
RadioFrequency
ObservedRegion
Venus
ObservedRegion
Earth
ObservedRegion
Jupiter
ObservedRegion
Saturn
ObservedRegion
Heliosphere
Keywords
CASSINI ORBITER
Venus
Earth
Jupiter
Saturn
Solar system
Titan
Enceladus
Mimas
Dione
Tethys
Phoebe
Iapetus
Hyperion
Rhea
CASSINI-HUYGENS
Parameter #1
Name
FILE_ID
ParameterKey
FILE_ID
Description

'CORPWS01' for the file id.

Support
SupportQuantity
Other
Parameter #2
Name
RECORD_LENGTH
ParameterKey
RECORD_LENGTH
Description

The length of each record in bytes.

Support
SupportQuantity
Other
Parameter #3
Name
RECORDS
ParameterKey
RECORDS
Description

The total number of records.

Support
SupportQuantity
Other
Parameter #4
Name
RECEIVER_TYPE
ParameterKey
RECEIVER_TYPE
Description

Logical RPWS Instrument ID Number.

Support
SupportQuantity
Other
Parameter #5
Name
MINI_PACKET_HEADER
ParameterKey
MINI_PACKET_HEADER
Description

The mini-packet header which is representative for the data contained in the file.

Support
SupportQuantity
Other
Parameter #6
Name
SCET
ParameterKey
SCET
Description

The standard JPL spacecraft event time description: yyyy-doyThh:mm, seconds and milliseconds are assumed zero. This is half of the SCLK/SCET pair produce by the SPICE kernel for the beginning of each day.

Support
SupportQuantity
Temporal
Parameter #7
Name
SCLK
ParameterKey
SCLK
Description

The standard JPL spacecraft clock time description: ssssssssss.fff. This is half of the SCLK/SCET pair produce by the SPICE kernel for the beginning of each day.

Support
SupportQuantity
Temporal
Parameter #8
Name
SCLK_SECOND
ParameterKey
SCLK_SECOND
Description

Spacecraft clock counter increments each second, beginning at approximately 1958-01-01T00:00:00Z.

Support
SupportQuantity
Temporal
Parameter #9
Name
SCLK_PARTITION
ParameterKey
SCLK_PARTITION
Description

Spacecraft clock partition. A value of ZERO or ONE indicates the first partition (i.e. the spacecraft clock has not been reset).

Support
SupportQuantity
Temporal
Parameter #10
Name
SCLK_FINE
ParameterKey
SCLK_FINE
Description

Spacecraft clock modulo 256 counter increments 256 times per second. Since the RTI increments from 0 through 7 in this same interval, SCLK_FINE / 32 yields the RTI count. For RPWS, SCLK_FINE is maintained within the instrument to an accuracy of one RTI period. Time tags should occur only with the following values for SCLK_FINE : 0, 32, 64, 96, 128, 160, 192, and 224

Support
SupportQuantity
Temporal
Parameter #11
Name
SCET_DAY
ParameterKey
SCET_DAY
Description

Spacecraft event time days since 1958-01-01T00:00:00Z

Support
SupportQuantity
Temporal
Parameter #12
Name
SCET_MILLISECOND
ParameterKey
SCET_MILLISECOND
Description

Spacecraft event time millisecond of day allowing for up to two leap seconds.

Support
SupportQuantity
Temporal
Parameter #13
Name
TIME
ParameterKey
TIME
Description

Time offset of individual samples in corresponding columns relative to time tag of each row.

Units
s
Structure
Size
48
Description

Array of values

Support
SupportQuantity
Temporal
Parameter #14
Name
SCLK_SECOND
ParameterKey
SCLK_SECOND
Description

Spacecraft clock counter increments each second, beginning at approximately 1958-01-01T00:00:00Z.

Support
SupportQuantity
Temporal
Parameter #15
Name
SCLK_PARTITION
ParameterKey
SCLK_PARTITION
Description

Spacecraft clock partition. A value of ZERO or ONE indicates the first partition (i.e. the spacecraft clock has not been reset).

Support
SupportQuantity
Temporal
Parameter #16
Name
SCLK_FINE
ParameterKey
SCLK_FINE
Description

Spacecraft clock modulo 256 counter increments 256 times per second. Since the RTI increments from 0 through 7 in this same interval, SCLK_FINE / 32 yields the RTI count. For RPWS, SCLK_FINE is maintained within the instrument to an accuracy of one RTI period. Time tags should occur only with the following values for SCLK_FINE : 0, 32, 64, 96, 128, 160, 192, and 224

Support
SupportQuantity
Temporal
Parameter #17
Name
SCET_DAY
ParameterKey
SCET_DAY
Description

Spacecraft event time days since 1958-01-01T00:00:00Z

Support
SupportQuantity
Temporal
Parameter #18
Name
SCET_MILLISECOND
ParameterKey
SCET_MILLISECOND
Description

Spacecraft event time millisecond of day allowing for up to two leap seconds.

Support
SupportQuantity
Temporal
Parameter #19
Name
FREQUENCY
ParameterKey
FREQUENCY
Description

Frequency of spectral densities in corresponding columns.

Units
Hz
Structure
Size
48
Description

Array of values

Support
SupportQuantity
Other
Parameter #20
Name
ENGINEERING_DATA
ParameterKey
ENGINEERING_DATA
Description

This field contains the sensor ID number and data quality status. Bits will be added as sources of interferance, telemetry errors, etc. are identified. Individual data values within a capture are marked by multiplying the original measurement by negative one.

Support
SupportQuantity
Other
Parameter #21
Name
ELECTRIC_SPECTRAL_DENSITIES
ParameterKey
ELECTRIC_SPECTRAL_DENSITIES
Description

Calibrated spectral densities from the electric antennas.

Units
V**2/m**2/Hz
Structure
Size
48
Description

Array of values

Wave
WaveType
Electromagnetic
WaveQuantity
ACElectricField
FrequencyRange
SpectralRange
RadioFrequency
Low
1
High
16000000
Units
Hz
Parameter #22
Name
MAGNETIC_SPECTRAL_DENSITIES
ParameterKey
MAGNETIC_SPECTRAL_DENSITIES
Description

Calibrated spectral densities from the magnetic sensors.

Units
nT**2/Hz
Structure
Size
48
Description

Array of values

Wave
WaveType
Electromagnetic
WaveQuantity
ACMagneticField
FrequencyRange
SpectralRange
RadioFrequency
Low
1
High
12000
Units
Hz