Version:2.2.9

NumericalData

ResourceHeader

ResourceName

AMPTE-UKS Magnetic Field Data

ReleaseDate

2019-05-05 12:34:56Z

Description

AMPTE-UKS 5-second (spin) averaged magnetic field measurements

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UKS-IRM Prime Parameters, UKS/IRM High Resolution Data, or products derived from them may NOT be published or shown in any form without the consent of the Principal Investigators concerned.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/David.J.Southwood
2.	DataProducer	spase://SMWG/Person/Malcolm.W.Dunlop

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 descriptions of instruments

PriorIDs

spase://VMO/NumericalData/AMPTE_UKS/FGM/PT5S

spase://VMO/NumericalData/AMPTE-UKS/FGM/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/mag/

Description

A web-accessible directory hosting AMPTE/UKS spin-averaged magnetic field data.

Format

Text

Encoding

ASCII

MeasurementType

MagneticField

TemporalDescription

TimeSpan

StartDate

1984-08-21 08:24:42.5Z

StopDate

1985-01-15 08:01:02.5Z

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

Bm

ParameterKey

Column 2

Description

Magnetic field magnitude

Units

nT

UnitsConversion

1e-9>T

FillValue

-1e31

Field

Qualifier

Magnitude

Qualifier

Scalar

FieldQuantity

Magnetic

Parameter #3

Name

B

Description

Magnetic field vector

Units

nT

UnitsConversion

1e-9>T

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

GSE

Structure

Size

3

Element

Name

Bx

Qualifier

Component.I

Index

1

ParameterKey

Column 3

Element

Name

By

Qualifier

Component.J

Index

2

ParameterKey

Column 4

Element

Name

Bz

Qualifier

Component.K

Index

3

ParameterKey

Column 5

FillValue

-1e31

Field

Qualifier

Vector

FieldQuantity

Magnetic