Version:2.2.8

NumericalData

ResourceHeader

ResourceName

DMSP F16 Special Sensor Magnetometer, SESS/SSM-Boom, Magnetic Field Measurements taken at 850 km, 1 s Data

ReleaseDate

2019-08-05 15:03:35Z

Description

Defense Meteorology Satellite Program, DMSP, F16 Vector Magnetometer Measurements, 850 km Altitude

Acknowledgement

R.J. Redmon, Data Access provided by NGDC in Coordination with AFRL and the University of Colorado, Boulder. Please acknowledge the Data Providers. If you find Problems, please report them.

Contacts

	Role	Person
1.	PrincipalInvestigator	spase://SMWG/Person/Robert.J.Redmon
2.	MetadataContact	spase://SMWG/Person/Robert.E.McGuire
3.	MetadataContact	spase://SMWG/Person/Lee.Frost.Bargatze

InformationURL

Name

NGDC, STP, Satellite Data Services

URL

https://www.ngdc.noaa.gov/stp/satellite/satdataservices.html

Description

NGDC Solar and Terrestrial Physics, STP, Satellite Data Services

AccessInformation

RepositoryID

spase://SMWG/Repository/NASA/GSFC/SPDF

Availability

Online

AccessRights

Open

AccessURL

Name

FTP access to files at SPDF

URL

ftps://spdf.gsfc.nasa.gov/pub/data/dmsp/dmspf16/ssm/magnetometer/

Description

Access to Data in CDF Format via ftp from SPDF

AccessURL

Name

HTTP access to files at SPDF

URL

https://spdf.gsfc.nasa.gov/pub/data/dmsp/dmspf16/ssm/magnetometer/

Description

Access to Data in CDF Format via http from SPDF

AccessURL

Name

CDAWeb

URL

https://cdaweb.sci.gsfc.nasa.gov/cgi-bin/eval2.cgi?dataset=DMSP-F16_SSM_MAGNETOMETER&index=sp_phys

ProductKey

DMSP-F16_SSM_MAGNETOMETER

Description

Access to ASCII, CDF, and plots via NASA/GSFC CDAWeb

Format

CDF

Encoding

None

Acknowledgement

R.J. Redmon, Data Access provided by NGDC in Coordination with AFRL and the University of Colorado, Boulder. Please acknowledge the Data Providers. If you find Problems, please report them. Please acknowledge the data providers and CDAWeb when using these data.

ProcessingLevel

Calibrated

MeasurementType

MagneticField

TemporalDescription

TimeSpan

StartDate

2010-01-01 00:00:00.000

StopDate

2014-12-30 23:59:59.999

Cadence

PT1S

ObservedRegion

Earth.Magnetosphere

ObservedRegion

Earth.Magnetosphere.Polar

ObservedRegion

Earth.NearSurface

ObservedRegion

Earth.NearSurface.AuroralRegion

ObservedRegion

Earth.NearSurface.EquatorialRegion

ObservedRegion

Earth.NearSurface.Ionosphere

ObservedRegion

Earth.NearSurface.PolarCap

Parameter #1

Name

Epoch Time

ParameterKey

Epoch

Description

Epoch Time, Default

Caveats

This parameter exhibits an increasing monotonic progression.

Cadence

PT1S

Units

ms

UnitsConversion

1e-3>s

RenderingHints

AxisLabel

Epoch

ScaleType

LinearScale

ValidMin

01-Jan-1990 00:00:00.000

ValidMax

31-Dec-2029 23:59:59.999

FillValue

31-Dec-9999 23:59:59.999

Support

SupportQuantity

Temporal

Parameter #2

Name

Spacecraft Position, ECI

Set

Time series defined by using: EPOCH

ParameterKey

SC_ECI

Description

Spacecraft Position, Earth Centered Inertial, ECI, Cartesian Coordinates

Caveats

Epoch is True of Date, TOD. These ECI Coordinates are calculated from an SPDF SSC Locator 1 min Ephemeris using an Eight Order Interpolation, Burden, R.L., and Faires, J.D., Numerical Analysis, 5th Ed., PWS Publishing Company, Boston, 1993. Using SPDF Methods, the expected Accuracy is on the Order of a few km.

Cadence

PT1S

Units

km

UnitsConversion

1e3>m

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

GEI

RenderingHints

DisplayType

TimeSeries

ValueFormat

E12.2

ScaleType

LinearScale

Structure

Size

3

Element

Name

x_ECI

Index

1

Element

Name

y_ECI

Index

2

Element

Name

z_ECI

Index

3

ValidMin

-7500.0

ValidMax

7500.0

FillValue

NaN

Support

Qualifier

Vector

SupportQuantity

Positional

Parameter #3

Name

Spacecraft Latitude, GEO

Set

Time series defined by using: EPOCH

ParameterKey

SC_GEOCENTRIC_LAT

Description

Spacecraft Latitude, Geographic Inertial, GEO, Coordinates

Caveats

Calculated by using IDL Astro Library Function ECI2GEO

Cadence

PT1S

Units

°

UnitsConversion

0.0174532925>rad

CoordinateSystem

CoordinateRepresentation

Spherical

CoordinateSystemName

GEO

RenderingHints

DisplayType

TimeSeries

AxisLabel

SC_GEOCENTRIC_LAT

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

-90.0

ValidMax

90.0

FillValue

NaN

Support

Qualifier

DirectionAngle.ElevationAngle

SupportQuantity

Positional

Parameter #4

Name

Spacecraft Longitude, GEO

Set

Time series defined by using: EPOCH

ParameterKey

SC_GEOCENTRIC_LON

Description

Spacecraft Longitude, Geographic Inertial, GEO, Coordinates

Caveats

Calculated by using IDL Astro Library Function ECI2GEO

Cadence

PT1S

Units

°

UnitsConversion

0.0174532925>rad

CoordinateSystem

CoordinateRepresentation

Spherical

CoordinateSystemName

GEO

RenderingHints

DisplayType

TimeSeries

AxisLabel

SC_GEOCENTRIC_LON

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

0.0

ValidMax

360.0

FillValue

NaN

Support

Qualifier

DirectionAngle.AzimuthAngle

SupportQuantity

Positional

Parameter #5

Name

Spacecraft Geocentric Distance

Set

Time series defined by using: EPOCH

ParameterKey

SC_GEOCENTRIC_R

Description

Spacecraft Geocentric Distance

Cadence

PT1S

Units

km

UnitsConversion

1e3>m

RenderingHints

DisplayType

TimeSeries

AxisLabel

SC_GEOCENTRIC_R

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

6378.0

ValidMax

7500.0

FillValue

NaN

Support

Qualifier

Magnitude

SupportQuantity

Positional

Parameter #6

Name

Spacecraft Latitude, AACGM

Set

Time series defined by using: EPOCH

ParameterKey

SC_AACGM_LAT

Description

Spacecraft Latitude, Altitude Adjusted Corrected Geomagnetic, AACGM, Coordinates

Caveats

Calculated by using the SuperDARN AACGM IDL Library. Values are the Result of linearly interpolating between two nearest AACGM 5 Year Epochs.

Cadence

PT1S

Units

°

UnitsConversion

0.0174532925>rad

CoordinateSystem

CoordinateRepresentation

Spherical

CoordinateSystemName

CGM

RenderingHints

DisplayType

TimeSeries

AxisLabel

SC_AACGM_LAT

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

-90.0

ValidMax

90.0

FillValue

NaN

Support

Qualifier

DirectionAngle.ElevationAngle

SupportQuantity

Positional

Parameter #7

Name

Spacecraft Longitude, AACGM

Set

Time series defined by using: EPOCH

ParameterKey

SC_AACGM_LON

Description

Spacecraft Longitude, Altitude Adjusted Corrected Geomagnetic, AACGM, Coordinates

Caveats

Calculated by using the SuperDARN AACGM IDL Library. Values are the Result of linearly interpolating between two nearest AACGM 5 Year Epochs.

Cadence

PT1S

Units

°

UnitsConversion

0.0174532925>rad

CoordinateSystem

CoordinateRepresentation

Spherical

CoordinateSystemName

CGM

RenderingHints

DisplayType

TimeSeries

AxisLabel

SC_AACGM_LON

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

0.0

ValidMax

360.0

FillValue

NaN

Support

Qualifier

DirectionAngle.AzimuthAngle

SupportQuantity

Positional

Parameter #8

Name

Spacecraft Local Time, AACGM

Set

Time series defined by using: EPOCH

ParameterKey

SC_AACGM_LTIME

Description

Spacecraft Local Time, Altitude Adjusted Corrected Geomagnetic, AACGM, Coordinates

Caveats

Calculated by using the SuperDARN AACGM IDL Library. Values are the Result of linearly interpolating between two nearest AACGM 5 Year Epochs.

Cadence

PT1S

Units

h

UnitsConversion

3600>s

CoordinateSystem

CoordinateRepresentation

Spherical

CoordinateSystemName

CGM

RenderingHints

DisplayType

TimeSeries

AxisLabel

SC_AACGM_LTIME

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

0.0

ValidMax

24.0

FillValue

NaN

Support

Qualifier

DirectionAngle.AzimuthAngle

SupportQuantity

Positional

Parameter #9

Name

Magnetic Field, Spacecraft Frame

Set

Time series defined by using: EPOCH

ParameterKey

B_SC_OBS_ORIG

Description

Magnetic Field as originally measured in Spacecraft Frame

Caveats

X is Geodedic Nadir, Down, Y is along Spacecraft Track, the Ram Direction, Z is Across-Track to the Right. Note, the Pertrubations in this Variable have been recomputed from the Observed B-Field. IGRF11 was run using this Day as Epoch to compute a new, more accurate Geocentric Location that was rotated into Spacecraft Coordinates and then removed.

Cadence

PT1S

Units

nT

UnitsConversion

1e-9>T

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

SC

RenderingHints

DisplayType

TimeSeries

ValueFormat

E12.2

ScaleType

LinearScale

Structure

Size

3

Element

Name

Bx_SC

Index

1

Element

Name

By_SC

Index

2

Element

Name

Bz_SC

Index

3

ValidMin

-100000.0

ValidMax

100000.0

FillValue

NaN

Field

Qualifier

Vector

FieldQuantity

Magnetic

Parameter #10

Name

Delta-B, measured minus IGRF, Spacecraft Frame

Set

Time series defined by using: EPOCH

ParameterKey

DELTA_B_SC_ORIG

Description

Delta Magnetic Field, Delta-B, which is equal to the originally measured Magnetic Field minus the International Geomagnetic Reference Field, IGRF, Model Magnetic Field, Spacecraft Frame

Caveats

X is Geodedic Nadir, Down, Y is along Spacecraft Track, the Ram Direction, Z is Across-Track to the Right

Cadence

PT1S

Units

nT

UnitsConversion

1e-9>T

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

SC

RenderingHints

DisplayType

TimeSeries

ValueFormat

E12.2

ScaleType

LinearScale

Structure

Size

3

Element

Name

dB X_SC

Index

1

Element

Name

dB Y_SC

Index

2

Element

Name

dB Z_SC

Index

3

ValidMin

-2000.0

ValidMax

2000.0

FillValue

NaN

Field

Qualifier

Vector

FieldQuantity

Magnetic

Parameter #11

Name

Baseline corrected Delta-B, GEO

Set

Time series defined by using: EPOCH

ParameterKey

DELTA_B_GEO

Description

Baseline corrected Delta-B, Geographic, GEO, Spherical, East, North, Up, Coordinates

Caveats

Finite Differences between adjacent Points on Spacecraft Track were used to determine along Track and across Track Unit Vectors in GEO. No Altitude Change between adjacent Points was assumed. Baseline Correction, F. Rich's MFIT Procedure, is Polynomial Fit every Half-Pass to each Component of Delta-B in Spacecraft Coordinates by using only Data from Regions equatorward of the DMSP Auroral Boundary from the CEDAR Database.

Cadence

PT1S

Units

nT

UnitsConversion

1e-9>T

CoordinateSystem

CoordinateRepresentation

Spherical

CoordinateSystemName

GEO

RenderingHints

DisplayType

TimeSeries

ValueFormat

E12.2

ScaleType

LinearScale

Structure

Size

3

Element

Name

BC dB East

Index

1

Element

Name

BC dB North

Index

2

Element

Name

BC dB Up

Index

3

ValidMin

-2000.0

ValidMax

2000.0

FillValue

NaN

Field

Qualifier

Vector

FieldQuantity

Magnetic

Parameter #12

Name

Baseline corrected Delta-B, APX

Set

Time series defined by using: EPOCH

ParameterKey

DELTA_B_APX

Description

Baseline corrected Delta-B, Modified Apex, APX, Coordinates, Reference Height 110 km

Caveats

Coordinates transformed with APEX-PYTHON, NCAR HAO, with Reference Altitude equal to 110 km, See Richmond, J. Geomag. Geoelec., 1995. Baseline Correction, F. Rich's MFIT Procedure, is Polynomial Fit every Half-Pass to each Component of Delta-B in Spacecraft Coordinates by using only Data from Regions equatorward of the DMSP Auroral Boundary from the CEDAR Database.

Cadence

PT1S

Units

nT

UnitsConversion

1e-9>T

CoordinateSystem

CoordinateRepresentation

Spherical

CoordinateSystemName

LGM

RenderingHints

DisplayType

TimeSeries

ValueFormat

E12.2

ScaleType

LinearScale

Structure

Size

3

Element

Name

BC dB d1, nearly eastward

Index

1

Element

Name

BC dB d2, nearly equatorward

Index

2

Element

Name

BC dB d3, nearly upward

Index

3

ValidMin

-2000.0

ValidMax

2000.0

FillValue

NaN

Field

Qualifier

Vector

FieldQuantity

Magnetic

Parameter #13

Name

Baseline corrected Delta-B, Spacecraft Frame

Set

Time series defined by using: EPOCH

ParameterKey

DELTA_B_SC

Description

Baseline corrected Delta-B, Spacecraft Frame

Caveats

X is Geodedic Nadir, Down, Y is along Spacecraft Track, the Ram Direction, Z is Across-Track to the Right. Baseline Correction, F. Rich's MFIT Procedure, is Polynomial Fit every Half-Pass to each Component of Delta-B in Spacecraft Coordinates by using only Data from Regions equatorward of the DMSP Auroral Boundary from the CEDAR Database.

Cadence

PT1S

Units

nT

UnitsConversion

1e-9>T

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

SC

RenderingHints

DisplayType

TimeSeries

ValueFormat

E12.2

ScaleType

LinearScale

Structure

Size

3

Element

Name

BC dB X_SC

Index

1

Element

Name

BC dB Y_SC

Index

2

Element

Name

BC dB Z_SC

Index

3

ValidMin

-2000.0

ValidMax

2000.0

FillValue

NaN

Field

Qualifier

Vector

FieldQuantity

Magnetic

Parameter #14

Name

Spacecraft Latitude, APX

Set

Time series defined by using: EPOCH

ParameterKey

SC_APEX_LAT

Description

Spacecraft Latitude, Modified Apex Geomagnetic, APXGM, Coordinates, Reference Height 110 km

Caveats

Calculated by using Apex-Python, which is based on Apex Fortran Code available from CEDAR Database with the nearest Year Epoch

Cadence

PT1S

Units

°

UnitsConversion

0.0174532925>rad

CoordinateSystem

CoordinateRepresentation

Spherical

CoordinateSystemName

LGM

RenderingHints

DisplayType

TimeSeries

AxisLabel

SC_APEX_LAT

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

-90.0

ValidMax

90.0

FillValue

NaN

Field

Qualifier

DirectionAngle.ElevationAngle

FieldQuantity

Magnetic

Parameter #15

Name

Spacecraft Longitude, APX

Set

Time series defined by using: EPOCH

ParameterKey

SC_APEX_LON

Description

Spacecraft Longitude, Modified Apex Geomagnetic, APXGM, Coordinates, Reference Height 110 km

Caveats

Calculated by using Apex-Python, which is based on Apex Fortran Code available from CEDAR Database with the nearest Year Epoch

Cadence

PT1S

Units

°

UnitsConversion

0.0174532925>rad

CoordinateSystem

CoordinateRepresentation

Spherical

CoordinateSystemName

LGM

RenderingHints

DisplayType

TimeSeries

AxisLabel

SC_APEX_LON

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

-180.0

ValidMax

180.0

FillValue

NaN

Field

Qualifier

DirectionAngle.AzimuthAngle

FieldQuantity

Magnetic

Parameter #16

Name

Spacecraft Local Time, APX

Set

Time series defined by using: EPOCH

ParameterKey

SC_APEX_MLT

Description

Spacecraft Local Time, Modified Apex Geomagnetic, APXGM, Coordinates, Reference Height 110 km

Caveats

Calculated by using Apex-Python, which is based on Apex Fortran Code available from CEDAR Database with the nearest Year Epoch

Cadence

PT1S

Units

h

UnitsConversion

3600>s

CoordinateSystem

CoordinateRepresentation

Spherical

CoordinateSystemName

LGM

RenderingHints

DisplayType

TimeSeries

AxisLabel

SC_APEX_MLT

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

0.0

ValidMax

24.0

FillValue

NaN

Field

Qualifier

DirectionAngle.AzimuthAngle

FieldQuantity

Magnetic

Parameter #17

Name

Spacecraft Region Code

Set

Time series defined by using: EPOCH

ParameterKey

AURORAL_REGION

Description

Spacecraft Region Code: 1=Equatorial, 2=Auroral, 3=Polar

Caveats

0-No Boundary Identified, 1-Equatorward of the Auroral Zone, 2-Auroral Zone, 3-Polar Cap

Cadence

PT1S

Units

(2=Auroral)

RenderingHints

DisplayType

TimeSeries

AxisLabel

AURORAL_REGION

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

0.0

ValidMax

3.0

FillValue

NaN

Support

SupportQuantity

Other

Parameter #18

Name

Auroral Boundary Determination, FOM

Set

Time series defined by using: EPOCH

ParameterKey

AURORAL_BOUNDARY_FOM

Description

Auroral Boundary Determination Figure of Merit, FOM: OK if Equal to 2 or Greater

Caveats

Typical Range 0-4. Less than 2 is Suspect. See the DMSP CDF User Manual for full Specification of FOM Computation.

Cadence

PT1S

Units

(OK>=2)

RenderingHints

DisplayType

TimeSeries

AxisLabel

AURORAL_BOUNDARY_FOM

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

0.0

ValidMax

5.0

FillValue

NaN

Support

Qualifier

Uncertainty

SupportQuantity

Other

Parameter #19

Name

Orbit Index by Day

Set

Time series defined by using: EPOCH

ParameterKey

ORBIT_INDEX

Description

Integer representing the Orbit of the Day, signed by Hemisphere: >0=Northern, <0=Southern

Caveats

Orbit Start and End are determined by Crossings of the Apex Magnetic Equator. A value of 0 denotes the first Equator Crossing of the Day.

Cadence

PT1S

RenderingHints

DisplayType

TimeSeries

AxisLabel

ORBIT_INDEX

ValueFormat

E12.2

ScaleType

LinearScale

ValidMin

-18.0

ValidMax

18.0

FillValue

NaN

Support

SupportQuantity

Other

Parameter #20

Name

Spacecraft Ram Velocity Direction, Unit Vector, GEO

Set

Time series defined by using: EPOCH

ParameterKey

SC_ALONG_GEO

Description

Spacecraft Ram Velocity Direction, Unit Vector, Geographic, GEO, Coordinates

Caveats

This is an Estimate, based on a Spherical Trigonometry Approach by using a Great-Circle Arc between adjacent Points, See the User Manual.

Cadence

PT1S

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

GEO

RenderingHints

DisplayType

TimeSeries

ValueFormat

E12.2

ScaleType

LinearScale

Structure

Size

3

Element

Name

along_SC East

Index

1

Element

Name

along_SC North

Index

2

Element

Name

along_SC Up

Index

3

ValidMin

-1.0

ValidMax

1.0

FillValue

NaN

Support

Qualifier

Vector

SupportQuantity

Positional

Parameter #21

Name

Unit Vector across the Spacecraft Track, GEO

Set

Time series defined by using: EPOCH

ParameterKey

SC_ACROSS_GEO

Description

Unit Vector across the Spacecraft Track to the Left and Orthogonal to the Spacecraft Ram Velocity Direction, Geographic, GEO, Coordinates

Caveats

This is an Estimate, based on a Spherical Trigonometry Approach by using a Great-Circle Arc between adjacent Points, See the User Manual.

Cadence

PT1S

CoordinateSystem

CoordinateRepresentation

Cartesian

CoordinateSystemName

GEO

RenderingHints

DisplayType

TimeSeries

ValueFormat

E12.2

ScaleType

LinearScale

Structure

Size

3

Element

Name

across_SC East

Index

1

Element

Name

across_SC North

Index

2

Element

Name

across_SC Up

Index

3

ValidMin

-1.0

ValidMax

1.0

FillValue

NaN

Support

Qualifier

Vector

SupportQuantity

Positional