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Pioneer 11 Geiger Tube Telescope (GTT) 15-min count rate data

ResourceID
spase://NASA/NumericalData/Pioneer11/GTT/PT15M

Description

This data set holds 15-min count rates and related
parameters for each of 8 sensors or multi-sensor coincidence modes,
as obtained from the U.Iowa Geiger Tube Telescope (GTT) experiment flown
on Pioneer 11. Single-sensor count rates are from the A (directional
fluxes of 0.04-21 MeV electrons and 0.61-80 MeV protons, plus omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons), B (directional fluxes
of 0.56-21 MeV electrons and 9-80 MeV protons, plus omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons), C (omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons), D (omnidirectional
fluxes of .GT.31 MeV electrons and .GT.80 MeV protons), and G (directional
fluxes of 0.61-3.41 MeV protons) Geiger tubes. Coincidence mode rates
are given for Geiger tube combinations (A,B), (A,B,C) and (D,E,F).
The G and (A,B,C) rates are each given multiple times in the 12 rates
of each 15-min record. Additional parameters associated with each count
rate include numbers of counts contributing to each count rate, the
statistical uncertainty in each rate, and others used in U. Iowa's
processing and carried along for posterity. These are described in
the document identified in the first "Information URL." The data were
provided to NSSDC on VMS-binary-formatted tapes and were converted to
ASCII by GSFC/SPDF in 2009. The data are available in 6-month ASCII
files whose sizes range from ~20MB early in the mission to .LT.1MB
late in the mission.

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Details

Version:2.2.9

NumericalData

ResourceID
spase://NASA/NumericalData/Pioneer11/GTT/PT15M
ResourceHeader
ResourceName
Pioneer 11 Geiger Tube Telescope (GTT) 15-min count rate data
ReleaseDate
2021-03-11 18:39:11Z
Description

This data set holds 15-min count rates and related
parameters for each of 8 sensors or multi-sensor coincidence modes,
as obtained from the U.Iowa Geiger Tube Telescope (GTT) experiment flown
on Pioneer 11. Single-sensor count rates are from the A (directional
fluxes of 0.04-21 MeV electrons and 0.61-80 MeV protons, plus omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons), B (directional fluxes
of 0.56-21 MeV electrons and 9-80 MeV protons, plus omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons), C (omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons), D (omnidirectional
fluxes of .GT.31 MeV electrons and .GT.80 MeV protons), and G (directional
fluxes of 0.61-3.41 MeV protons) Geiger tubes. Coincidence mode rates
are given for Geiger tube combinations (A,B), (A,B,C) and (D,E,F).
The G and (A,B,C) rates are each given multiple times in the 12 rates
of each 15-min record. Additional parameters associated with each count
rate include numbers of counts contributing to each count rate, the
statistical uncertainty in each rate, and others used in U. Iowa's
processing and carried along for posterity. These are described in
the document identified in the first "Information URL." The data were
provided to NSSDC on VMS-binary-formatted tapes and were converted to
ASCII by GSFC/SPDF in 2009. The data are available in 6-month ASCII
files whose sizes range from ~20MB early in the mission to .LT.1MB
late in the mission.

Acknowledgement
Drs. James A. Van Allen, the original PI, and Bruce Randall
Contacts
RolePersonStartDateStopDateNote
1.GeneralContactspase://SMWG/Person/Bruce.A.Randall
InformationURL
Name
Iowa SFDU-formatted documentation
URL
Description

U.Iowa-written nssdcftp-resident descriptive document

InformationURL
Name
Readme file at SPDF
URL
Description

Readme with format statement for this ASCII version

PriorIDs
spase://VEPO/NumericalData/Pioneer11/GTT/PT15M
spase://VSPO/NumericalData/Pioneer11/GTT/PT15M
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
AccessURL
Name
HTTPS from SPDF
URL
Description

In CDF via HTTP from SPDF

Format
Text
DataExtent
Quantity
500
Units
MB
Acknowledgement
Drs. James A. Van Allen, the original PI, and Bruce Randall at U.Iowa, plus GSFC's Space Physics Data Facility
ProcessingLevel
Uncalibrated
InstrumentIDs
MeasurementType
EnergeticParticles
TemporalDescription
TimeSpan
StartDate
1973-04-06 00:00:00
StopDate
1995-01-23 00:00:00
Cadence
PT15M
ObservedRegion
Heliosphere.Outer
Parameter #1
Name
Sensor A count rate
ParameterKey
Column_35
Description

Count rate due to directional fluxes of
0.04-21 MeV electrons and 0.61-80 MeV protons, plus omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons

Cadence
PT15M
Units
1/sec
FillValue
0
Particle
ParticleType
Electron
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #2
Name
Sensor B count rate
ParameterKey
Column_36
Description

Count rate due to directional fluxes of
0.56-21 MeV electrons and 9-80 MeV protons, plus omnidirectional
fluxes of .GT.21 MeV electrons and .GT.80 MeV protons

Cadence
PT15M
Units
1/sec
FillValue
0
Particle
ParticleType
Electron
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #3
Name
Sensor C count rate
ParameterKey
Column_40
Description

Count rate due to omnidirectional fluxes of
.GT.21 MeV electrons and .GT.80 MeV protons

Cadence
PT15M
Units
1/sec
FillValue
0
Particle
ParticleType
Electron
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #4
Name
Sensor D count rate
ParameterKey
Column_41
Description

Count rate due to omnidirectional fluxes of
.GT.31 MeV electrons and .GT.80 MeV protons

Cadence
PT15M
Units
1/sec
FillValue
0
Particle
ParticleType
Electron
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #5
Name
Sensor G count rate
ParameterKey
Column_34
Description

Count rate due to directional fluxes of
0.61-3.41 Mev protons. See also columns 37 and 44.

Cadence
PT15M
Units
1/sec
FillValue
0
Particle
ParticleType
Electron
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #6
Name
Coincidence mode (A,B) count rate
ParameterKey
Column_38
Description

(A,B) coincidence mode count rate due to directional fluxes of
.GT.21 MeV electrons and .GT.130 MeV protons.

Cadence
PT15M
Units
1/sec
FillValue
0
Particle
ParticleType
Electron
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #7
Name
Coincidence mode (A,B,C) count rate
ParameterKey
Column_39
Description

(A,B,C) coincidence mode count rate due to directional fluxes of
.GT.21 MeV electrons and .GT.130 MeV protons. See also columns 42 and 45.

Cadence
PT15M
Units
1/sec
FillValue
0
Particle
ParticleType
Electron
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #8
Name
Coincidence mode (D,E,F) count rate
ParameterKey
Column_43
Description

(D,E,F) coincidence mode count rate due to omnidirectional
fluxes of .GT.31 MeV electrons and .GT.150 MeV protons. E and F are Geiger
tubes whose individual count rates are not taken.

Cadence
PT15M
Units
1/sec
FillValue
0
Particle
ParticleType
Electron
ParticleType
Proton
ParticleQuantity
CountRate
Parameter #9
Name
Standard deviations in all count rates
ParameterKey
Column_46_through_Column_57
Description

Standard deviations [count rate/SQRT(#points)]
in each of the 12 count rates of columns 34-45.

Cadence
PT15M
Units
1/sec
Structure
Size
12
Description

Standard deviation in the count rates in Columns
34 to 45, respectively

FillValue
0
Particle
ParticleType
Electron
ParticleType
Proton
Qualifier
StandardDeviation
ParticleQuantity
CountRate
Parameter #10
Name
Numbers of raw counts in all count rates
ParameterKey
Column_94_through_Column_105
Description

Number of raw counts in each of the 12 count
rates in columns 34-45

Cadence
PT15M
Structure
Size
12
Description

numbers of counts in the count rates in Columns
34 to 45, respectively

FillValue
0
Particle
ParticleType
Electron
ParticleType
Proton
Qualifier
StandardDeviation
ParticleQuantity
CountRate
Parameter #11
Name
Spacecraft position information
ParameterKey
Column_108_through_Column_117
Description

In sequence, data words are: Earth-spacecraft
distance, AU; Earth-sun distance, AU; Sun-spacecraft distance, AU;
celestial longitude of Earth; celestial longitude of spacecraft;
longitude of solar equator + 270; celestial latitude of Earth;
celestial latitude of spacecraft; heliographic latitude of spacecraft;
heliographic latitude of Earth.

Cadence
PT15M
Structure
Size
10
Description

Positional parameters for spacecraft and earth

Support
SupportQuantity
Positional