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Pioneer 11 Trapped Radiation Detector (TRD) 30-m Count Rate Summary Data

ResourceID
spase://NASA/NumericalData/Pioneer11/TRD/PT30M

Description
This ASCII data set contains 30-min count rates for 21 "pulse-counting" channels from a Cerenkov counter (which measures, via 3 discrimination levels, electrons >6 MeV plus nuclei >480 MeV/n, electrons >9 MeV plus nuclei >550 MeV/n, and electrons >13 MeV plus nuclei >650 MeV/n), an electron scatter detector (nuclei >80 MeV/n and electrons >0.16, >0.255, >0.46 MeV), and a minimizing ionizing particle counter (nuclei >80 MeV and electrons >35 MeV. The data set also contains 30-min averaged currents from the Cerenkov counter and two scintillators, spacecraft position and attitude data, and various other statistical and housekeeping data. The electrometer-based currents data are not reliable. The data are all for mission cruise phases and not planetary encounters.

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Details

Version:2.2.9

NumericalData

ResourceID
spase://NASA/NumericalData/Pioneer11/TRD/PT30M
ResourceHeader
ResourceName
Pioneer 11 Trapped Radiation Detector (TRD) 30-m Count Rate Summary Data
ReleaseDate
2021-03-11 18:39:11Z
Description
This ASCII data set contains 30-min count rates for 21 "pulse-counting" channels from a Cerenkov counter (which measures, via 3 discrimination levels, electrons >6 MeV plus nuclei >480 MeV/n, electrons >9 MeV plus nuclei >550 MeV/n, and electrons >13 MeV plus nuclei >650 MeV/n), an electron scatter detector (nuclei >80 MeV/n and electrons >0.16, >0.255, >0.46 MeV), and a minimizing ionizing particle counter (nuclei >80 MeV and electrons >35 MeV. The data set also contains 30-min averaged currents from the Cerenkov counter and two scintillators, spacecraft position and attitude data, and various other statistical and housekeeping data. The electrometer-based currents data are not reliable. The data are all for mission cruise phases and not planetary encounters.
Acknowledgement
Please acknowledge the PI, R. Walker Fillius, and the GSFC Space Physics Data Facility.
Contacts
Role Person StartDate StopDate Note
1. PrincipalInvestigator spase://SMWG/Person/R.Walker.Fillius
InformationURL
Name
Readme at SPDF
URL
Description
Voldesc.sfdu file gerenated by PI team
PriorIDs
spase://VEPO/NumericalData/Pioneer11/TRD/PT30M
spase://VSPO/NumericalData/Pioneer11/TRD/PT30M
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
AccessURL
Name
HTTPS from SPDF
URL
Description
In CDF via HTTP from SPDF
Format
Text
DataExtent
Quantity
237
Units
MB
Acknowledgement
Please acknowledge the PI, R. Walker Fillius, and the GSFC Space Physics Data Facility
InstrumentIDs
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
1973-04-16 00:00:00
StopDate
1991-08-31 00:00:00
Cadence
PT30M
ObservedRegion
Heliosphere.Outer
Parameter #1
Name
Particle counts for 21 channels over 30 minutes
ParameterKey
Column_106ff
Description
Counts registered for each of the 21 channels (3 discriminator levels x 3 voltage modes for each of 2 sensors, plus 3 discriminator levels for the third sensor), summed over each reading made during the 30-min interval
Caveats
See the information URL cited above
Cadence
PT30M
Units
Counts
Structure
Size
21
Description
21 counts as described above
Particle
ParticleType
Ion
ParticleQuantity
Counts
EnergyRange
Low
80
High
650
Units
MeV
Parameter #2
Name
Accumulation times for 21 channels over 30 minutes
ParameterKey
Column_127ff
Description
Durations over which counts were registered for each of the 21 channels during this interval
Cadence
PT30M
Units
msec
Structure
Size
21
Description
21 durations as described above
Support
SupportQuantity
Temporal
Parameter #3
Name
Numbers of measurements during the 30 minutes
ParameterKey
Column_85ff
Description
Numbers of readings of counts for each of the 21 channels during this 30-min interval
Cadence
PT30M
Structure
Size
21
Description
21 numbers of measurements as described above
Support
SupportQuantity
Other