Version:2.2.9

NumericalData

ResourceHeader

ResourceName

AMPTE-UKS Ion Plasma Data

ReleaseDate

2019-05-05 12:34:56Z

Description

AMPTE-UKS 5-second (spin) averaged ion plasma moments

Acknowledgement

UKS-IRM Prime Parameters, UKS-IRM High Resolution Data, or products derived from them may NOT be published or shown in any form without the consent of the Principal Investigators concerned. Acknowledgements to the PI and the UK CDHF would be appropriate in any published work; full-authorship may be required in some cases. Scientists intending to embark on studies involving AMPTE UKS/IRM data products are advised to contact the relevant Principal Investigator(s) early in order to ensure that the data is suitable for the study, that the project does not infringe on other ongoing work, and that the Principal Investigator in general consents to the intended use of the data. PIs can provide this support only on a best efforts basis, so please be as precise and succinct as possible, and please be patient when awaiting a PI response.

Contacts

	Role	Person
1.	PrincipalInvestigator	spase://SMWG/Person/Alan.D.Johnstone

InformationURL

Name

AMPTE documents

URL

http://www.mssl.ucl.ac.uk/www_plasma/missions/ampte.php

Description

An overview of the AMPTE missions with some description of the instruments

PriorIDs

spase://VMO/NumericalData/AMPTE_UKS/Plasma/FTR_PT5S

spase://VMO/NumericalData/AMPTE-UKS/Plasma/FTR_PT5S

AccessInformation

RepositoryID

spase://SMWG/Repository/NASA/GSFC/VHO-VMO

Availability

Online

AccessRights

Open

AccessURL

Name

AMPTE/UKS Data

URL

https://vmo.nasa.gov/mission/ampte_uks/ftr/

Description

A web-accessible directory hosting AMPTE/UKS spin-averaged ion plasma data.

Format

Text

Encoding

ASCII

MeasurementType

ThermalPlasma

TemporalDescription

TimeSpan

StartDate

1984-08-27 14:10:53Z

StopDate

1985-01-15 07:50:33Z

Cadence

PT5S

ObservedRegion

Earth.Magnetosheath

ObservedRegion

Earth.Magnetosphere

ObservedRegion

Earth.Magnetosphere.Magnetotail

ObservedRegion

Heliosphere.NearEarth

Caveats

The time tags represent the start times of accumulation intervals (spin). UKS times are UT stamped on board while IRM time stamps are UT at time of ground receipt. Thus for time-critical science, the IRM times need to be corrected by subtracting the light travel time from the spacecraft to the ground-station (at Weilheim in Germany apart special events requiring NASA DSN). For the transmission frequencies used, the vacuum light speed is appropriate. At apogee, this correction is more than a third of a second. There are no other known time delays.

Parameter #1

Name

Epoch

ParameterKey

Column 1

Description

The start of the accumulation time interval for the data point, in DA/MO/YR HR:MI:SS.MS format.

Support

SupportQuantity

Temporal

Parameter #2

Name

Ni

ParameterKey

Column 2

Description

Ion density

Units

cm^-3

UnitsConversion

1e6>m^-3

FillValue

-1e31

Particle

ParticleType

Proton

ParticleType

Ion

Qualifier

Moment

Qualifier

Scalar

ParticleQuantity

NumberDensity

Parameter #3

Name

Ti

ParameterKey

Column 3

Description

Ion temperature

Units

eV

UnitsConversion

1.16045e4>K

FillValue

-1e31

Particle

ParticleType

Proton

ParticleType

Ion

Qualifier

Moment

Qualifier

Scalar

ParticleQuantity

Temperature

Parameter #4

Name

Vi

Description

Bulk ion velocity

Units

km/s

UnitsConversion

1.0e3>m/s

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

GSE

Structure

Size

3

Element

Name

Vx

Qualifier

Component.I

Index

1

ParameterKey

Column 4

Element

Name

Vy

Qualifier

Component.J

Index

2

ParameterKey

Column 5

Element

Name

Vz

Qualifier

Component.K

Index

3

ParameterKey

Column 6

FillValue

-1e31

Particle

ParticleType

Proton

ParticleType

Ion

Qualifier

Moment

Qualifier

Vector

ParticleQuantity

Velocity