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Vega 1 Magnetic Field Data (1 min), Halley Comet

ResourceID
spase://NASA/NumericalData/Vega1/MISCHA/FLYBY/PT1M

Description

This product contains 1-minute magnetic field data for intervals of the closest approach of the Vega 1 spacecraft to Halley comet. Magnetic field data are in SE coordinate system, while spacecraft positions are in cometocentric (solar) ecliptic coordinates, CSE. Magnetic field data are presented in spacecraft-centered solar ecliptic (SE) coordinate system as Bxse, Bzse, Byse: * Bxse is directed from the spacecraft to the Sun. * Bzse is directed along the Z axis of the Solar Ecliptic system (to ecliptic pole). * Byse completes the right handed set and B=sqrt(Br^2+By^2+Bz^2). CSE (CometoCentric ecliptic coordinate system) for the spacecraft position: * Origin is at comet position, x-axis from comet to the Sun, z-axis to ecliptic northpole. * The (x,y)-plane is parallel to the ecliptic plane.

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Details

Version:2.2.9

NumericalData

ResourceID
spase://NASA/NumericalData/Vega1/MISCHA/FLYBY/PT1M
ResourceHeader
ResourceName
Vega 1 Magnetic Field Data (1 min), Halley Comet
ReleaseDate
2020-07-07 21:15:50Z
Description

This product contains 1-minute magnetic field data for intervals of the closest approach of the Vega 1 spacecraft to Halley comet. Magnetic field data are in SE coordinate system, while spacecraft positions are in cometocentric (solar) ecliptic coordinates, CSE. Magnetic field data are presented in spacecraft-centered solar ecliptic (SE) coordinate system as Bxse, Bzse, Byse: * Bxse is directed from the spacecraft to the Sun. * Bzse is directed along the Z axis of the Solar Ecliptic system (to ecliptic pole). * Byse completes the right handed set and B=sqrt(Br^2+By^2+Bz^2). CSE (CometoCentric ecliptic coordinate system) for the spacecraft position: * Origin is at comet position, x-axis from comet to the Sun, z-axis to ecliptic northpole. * The (x,y)-plane is parallel to the ecliptic plane.

Acknowledgement
Use of these data in publications should be accompanied by acknowledgements of the National Space Science Data Center(NSSDC), Space Physics Data Facility(SPDF) and IZMIRAN at Moscow.
Contacts
RolePersonStartDateStopDateNote
1.GeneralContactspase://SMWG/Person/Valery.G.Petrov
2.DataProducerspase://SMWG/Person/Valery.A.Styazhkin
3.TechnicalContactspase://SMWG/Person/Natalia.E.Papitashvili
4.MetadataContactspase://SMWG/Person/Jan.Merka
PriorIDs
spase://VHO/NumericalData/Vega1/MISCHA/FLYBY.PT1M
spase://VSPO/NumericalData/Vega1/MISCHA/FLYBY/PT1M
AccessInformation
RepositoryID
Availability
Online
AccessRights
Open
AccessURL
Name
FTPS from SPDF (not with most browsers)
URL
Description

FTP access to Vega mission data at NSSDC.

AccessURL
Name
HTTPS from SPDF
URL
Description

In CDF via HTTP from SPDF

Format
Text.ASCII
Encoding
ASCII
InstrumentIDs
MeasurementType
MagneticField
MeasurementType
Ephemeris
TemporalDescription
TimeSpan
StartDate
1986-03-05 07:20:30Z
StopDate
1986-03-07 08:59:30Z
Cadence
PT1M
ObservedRegion
Heliosphere.Inner
ObservedRegion
Comet
Parameter #1
Name
Year
ParameterKey
Column 1
Description

Time of observation (year)

Support
SupportQuantity
Temporal
Parameter #2
Name
Month
ParameterKey
Column 2
Description

Time of observation (month of year)

Support
SupportQuantity
Temporal
Parameter #3
Name
Day
ParameterKey
Column 3
Description

Time of observation (day of month)

Support
SupportQuantity
Temporal
Parameter #4
Name
Hour
ParameterKey
Column 4
Description

Time of observation (hour of day)

Support
SupportQuantity
Temporal
Parameter #5
Name
Minute
ParameterKey
Column 5
Description

Time of observation (minute)

Support
SupportQuantity
Temporal
Parameter #6
Name
Second
ParameterKey
Column 6
Description

Time of observation (second)

Units
s
Support
SupportQuantity
Temporal
Parameter #7
Name
Bx
ParameterKey
Column 7
Description

Magnetic field X component

Units
nT
UnitsConversion
1e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SSE
Field
Qualifier
Component.I
Qualifier
Average
FieldQuantity
Magnetic
Parameter #8
Name
By
ParameterKey
Column 8
Description

Magnetic field By component

Units
nT
UnitsConversion
1e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SSE
Field
Qualifier
Component.J
Qualifier
Average
FieldQuantity
Magnetic
Parameter #9
Name
Bz
ParameterKey
Column 9
Description

Magnetic field Bz component

Units
nT
UnitsConversion
1e-9>T
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SSE
Field
Qualifier
Component.K
Qualifier
Average
FieldQuantity
Magnetic
Parameter #10
Name
B
ParameterKey
Column 10
Description

Magnetic field magnitude, nT

Units
nT
UnitsConversion
1e-9>T
FillValue
9999.9
Field
Qualifier
Magnitude
Qualifier
Average
FieldQuantity
Magnetic
Parameter #11
Name
X
ParameterKey
Column 11
Description

X component of spacecraft position in CSE coordinates (CometoCentric ecliptic coordinate system)

Units
km
UnitsConversion
1e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SSE
Support
Qualifier
Component.I
SupportQuantity
Positional
Parameter #12
Name
Yse
ParameterKey
Column 12
Description

Y component of spacecraft position in CSE coordinates (CometoCentric ecliptic coordinate system)

Units
km
UnitsConversion
1e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SSE
Support
Qualifier
Component.J
SupportQuantity
Positional
Parameter #13
Name
Zse
ParameterKey
Column 13
Description

Z component of spacecraft position in CSE coordinates (CometoCentric ecliptic coordinate system)

Units
km
UnitsConversion
1e3>m
CoordinateSystem
CoordinateRepresentation
Cartesian
CoordinateSystemName
SSE
Support
Qualifier
Component.K
SupportQuantity
Positional
Parameter #14
Name
Dist
ParameterKey
Column 14
Description

Distance between spacecraft and Halley comet, km

Units
km
UnitsConversion
1e3>m
Support
SupportQuantity
Positional