Version:2.3.0
NumericalData
ResourceID
spase://NASA/NumericalData/Pioneer11/CPC/PT15M
ResourceHeader
ResourceName
Pioneer 11 Charged Particle Composition(CPC) 15-min Count Rates
ReleaseDate
2021-03-11 18:39:11Z
Description
This data set contains coincidence mode counts and
accumulation times, plus "box counts" based on pulse height analysis (PHA),
at 15-min resolution. There are 11 coincidence mode counts and 27 "box
counts." Taken together, the parameters included allow computation of
average counting rates and of fluxes of protons, electrons, helium and
CNO nuclei in selected energy windows corresponding to the PHA boxes.
There are 12 proton boxes spanning 3-67 MeV, 5 helium boxes spanning
3-67 MeV/n, 5 electron boxes, 2 Z>2 boxes, 1 box each for CNO, Z>5, and
E>67 MeV/n.
Acknowledgement
Please acknowledge the PI (the late John A. Simpson)
and Bruce McKibben.
Contacts
InformationURL
Name
Readme file at SPDF
URL
PriorIDs
spase://VEPO/NumericalData/Pioneer11/CPC/PT15M
spase://VSPO/NumericalData/Pioneer11/CPC/PT15M
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
AccessURL
Name
HTTPS from SPDF
URL
Description
In CDF via HTTP from SPDF
Format
Text
DataExtent
Acknowledgement
Please acknowledge the PI, the late John A. Simpson,
Bruce McKibben, and the GSFC Space Physics Data Facility
InstrumentIDs
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
1973-04-06 00:00:00
StopDate
1992-11-28 00:00:00
Cadence
PT15M
ObservedRegion
Heliosphere.Outer
Parameter #1
Name
Coincidence mode counts
Description
Counts accumulated over 15 minutes in each of 11
distinct multi-sensor coincidence modes
Cadence
PT15M
Units
counts
Structure
Size
11
Description
The 11 counts are in words 6, 8, ... 26 of the data records.
Particle
ParticleType
Proton
ParticleType
AlphaParticle
ParticleQuantity
Counts
EnergyRange
Low
3
High
67
Units
MeV/n
Parameter #2
Name
Accumulation times for the 11 coincidence mode counts
Description
Durations (seconds) over which counts were accumulated
within this 15 minute interval in each of 11 distinct multi-sensor
coincidence modes
Cadence
PT15M
Units
sec
Structure
Size
11
Description
The 11 accumulation times are in words 5, 7, ... 25 of
the data records. The accumulation time of word 5 is for the counts of word 6,
etc.
Support
Parameter #3
Name
Total numbers of Pulse Height events analyzed
Description
Total numbers of Pulse Height events analyzed for each of 5 coincidence
modes (ID1, ID2, ID5, ID7+ID13, ID13) for this 15-min interval
Cadence
PT15M
Units
counts
Structure
Size
5
Description
The 5 counts are in words 27-31 of the data records.
Particle
ParticleType
Proton
ParticleType
AlphaParticle
ParticleType
Electron
ParticleQuantity
Counts
Parameter #4
Name
Box counts for 27 boxes
Description
Counts of pulse height analyzed events, in each of several coincidence
modes, corresponding to segments (boxes) of tracks in dE/dx - E associated with specific
species and energy ranges. See species and energy range information in above description.
Cadence
PT15M
Units
counts
Structure
Size
27
Description
The 27 box counts are in words 32-58 of the data records.
Particle
ParticleType
Proton
ParticleType
AlphaParticle
ParticleType
Electron
ParticleQuantity
Counts
Parameter #5
Name
Spacecraft position vector
Description
Heliocentric distance (in AU, *100) and heliographic latitude and longitude
angles (in deg, *100) of the spacecraft.
Cadence
PT15M
Structure
Size
3
Description
Longitude, latitude and radial dictance are in words 59, 60, 61
of the data records, respectively
Support
SupportQuantity
Positional
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