Overrides Spase in the base schema. Space
Physics Archive Search and Extract (SPASE).
The outermost container or envelope for SPASE
metadata. This indicates the start of the
SPASE metadata.
Overrides Granule in base schema. An accessible
portion of another resource. A Granule may
be composed of one or more physical pieces
(files) which are considered inseparable.
For example, a data storage format that maintains
metadata and binary data in separate, but
tightly coupled files. Granules should not
be used to group files that have simple relationships
or which are associated through a parent resource.
For example, each file containing a time interval
data for a Numerical Data resource would each
be considered a Granule. The ParentID of a
Granule resource must be a NumericalData resource.
The attributes of a Granule supersede the
corresponding attributes in the NumericalData
resource.
A container of information regarding a parameter
whose values are part of the product. Every
product contains or can be related to one
or more parameters.
Overrides Particle in base schema. A description
of the types of particles observed in the
measurement. This includes both direct observations
and inferred observations.
Identifiers of the origin and orientation
of a set of typically orthogonal axes.
Corrected Geomagnetic - A coordinate system
from a spatial point with GEO radial distance
and geomagnetic latitude and longitude, follow
the epoch-appropriate IGRF/DGRF model field
vector through to the point where the field
line crosses the geomagnetic dipole equatorial
plane. Then trace the dipole magnetic field
vector Earthward from that point on the equatorial
plane, in the same hemisphere as the original
point, until the initial radial distance is
reached. Designate the dipole latitude and
longitude at that point as the CGM latitude
and longitude of the original point. See <http://nssdc.gsfc.nasa.gov/space/cgm/cgmm_des.html>
Corrected Solar Orbital - A coordinate system
related to Earth where X is anti-sunward,
Y along the orbital velocity direction.
A coordinate system which is centered at the
Sun and is "fixed" with respect to the synodic
rotation rate; the mean synodic value is about
27.2753 days. The Astronomical Almanac gives
a value for Carrington longitude of 349.03
degrees at 0000 UT on 1 January 1995.
Dipole Meridian - A coordinate system centered
at the observation point. Z axis is parallel
to the Earth's dipole axis, positive northward.
X is in the plane defined by Z and the line
linking the observation point with the Earth's
center. Y is positive eastward. See <http://cdpp.cnes.fr/00428.pdf>
The Earth-Centered, Earth-Fixed (ECEF) coordinate
system has point (0,0,0) defined as the center
of mass of the Earth. Its axes are aligned
with the International Reference Pole (IRP)
and International Reference Meridian (IRM).
The x-axis intersects the sphere of the Earth
at 0 degree latitude (Equator) and 0 degree
longitude (Greenwich). The z-axis points north.
The y-axis completes the right handed coordinate
system.
ENP (also called PEN) - The P vector component
points northward, perpendicular to orbit plane
which for a zero degree inclination orbit
is parallel to Earth's spin axis. The E vector
component is perpendicular to P and N and
points earthward. The N component is perpendicular
to P and E and is positive eastward.
GEI Geocentric Equatorial Inertial - A coordinate
system where the Z axis is along Earth's spin
vector, positive northward. X axis points
towards the first point of Aries (from the
Earth towards the Sun at the vernal equinox).
See Russell, 1971. When the X axis is the
direction of the mean vernal equinox of J2000,
the coordinate system is also called GCI.
Then the Z axis is also defined as being normal
to the mean Earth equator of J2000.
Geographic - geocentric corotating - A coordinate
system where the Z axis is along Earth's spin
vector, positive northward. X axis lies in
Greenwich meridian, positive towards Greenwich.
See Russell, 1971.
Kronian Solar Orbital - A coordinate system
related to Saturn where X is anti-sunward,
Y along the orbital velocity direction.
Geocentric Solar Ecliptic - A coordinate system
where the X axis is from Earth to Sun. Z axis
is normal to the ecliptic, positive northward.
See Russell, 1971.
Geocentric Solar Equatorial - A coordinate
system where the X axis is from Earth to Sun.
Y axis is parallel to solar equatorial plane.
Z axis is positive northward. See Russell,
1971
Geocentric Solar Magnetospheric - A coordinate
system where the X axis is from Earth to Sun,
Z axis is northward in a plane containing
the X axis and the geomagnetic dipole axis.
See Russell, 1971
Heliocentric Aries Ecliptic - A coordinate
system where the Z axis is normal to the ecliptic
plane, positive northward. X axis is positive
towards the first point of Aries (from Earth
to Sun at vernal equinox). Same as SE below.
See Hapgood, 1992.
Heliocentric Cartesian - A 3-D orthonormal
coordinate system that is primarily intended
to specify with two dimensions a point on
the solar disk. The Z axis points toward the
observer. The Y axis lies in the plane defined
by the solar spin vector and the Z axis, positive
northward. The X axis is perpendicular to
the Y and Z axes, positive toward solar west.
Standard representation for this system is
via the point's x and y values, expressed
either as physical distances or as fractions
of the solar disk radius.
Heliographic Carrington Inertial.
Heliocentric Radial - A 3-D orthonormal coordinate
system that is primarily intended to specify
with two dimensions a point on the solar disk.
The Z axis points toward the observer. The
Y axis lies in the plane defined by the solar
spin vector and the Z axis, positive northward.
The X axis is perpendicular to the Y and Z
axes, positive toward solar west. Standard
representation for this system is via the
point's distance rho from the Z axis [Rho
= SQRT(x**2 + y**2)] and its phase angle psi
measured counterclockwise from the +Y axis
[psi = arctan (-y/x)]
Heliocentric Earth Ecliptic - A coordinate
system where the Z axis is normal to the ecliptic
plane, positive northward. X axis points from
Sun to Earth. See Hapgood, 1992
Heliocentric Earth Equatorial - A coordinate
system where the Z axis is normal to the solar
equatorial plane, positive northward. X axis
is generally Earthward in the plane defined
by the Z axis and the Sun-Earth direction.
See Hapgood, 1992.
Heliographic - A heliocentric rotating coordinate
system where the Z axis is normal to the solar
equatorial plane, positive northward. X, Y
axes rotate with a 25.38 day period. The zero
longitude (X axis) is defined as the longitude
that passed through the ascending node of
the solar equator on the ecliptic plane on
1 January, 1854 at 12 UT. See <http://nssdc.gsfc.nasa.gov/space/helios/coor_des.html>
Heliographic Inertial - A heliocentric coordinate
system where the Z axis is normal to the solar
equatorial plane, positive northward. X axis
is along the intersection line between solar
equatorial and ecliptic planes. The X axis
was positive at SE longitude of 74.367 deg
on Jan 1, 1900. (See SE below.) See <http://nssdc.gsfc.nasa.gov/space/helios/coor_des.html>
Helioprojective Cartesian = A 3-D orthonormal
(left-handed) coordinate system that is primarily
intended to specify with two dimensions a
point on the solar disk. The Z axis points
from the observer to the center of the solar
disk. The Y axis lies in the plane defined
by the solar spin vector and the Z axis, positive
northward. The X axis is perpendicular to
the Y and Z axes, positive toward solar west.
Given as the distance between the observer
and the center of the solar disk, the standard
representation of an (x,y) point on the solar
disk is via the point's longitude angle [arctan
(x/d)] and latitude angle [arctan y/d].
Helioprojective Radial - A 3-D orthonormal
(left-handed) coordinate system that is primarily
intended to specify with two dimensions a
point on the solar disk. The Z axis points
from the observer to the center of the solar
disk. The Y axis lies in the plane defined
by the solar spin vector and the Z axis, positive
northward. The X axis is perpendicular to
the Y and Z axes, positive toward solar west.
Given as the distance between the observer
and the center of the solar disk, the standard
representation for this system of an (x,y)
point on the solar disk is via the point's
latitude angle theta {= arctan [SQRT(x**2
+ y**2)]/d]} or equivalent declination parameter
delta (= theta - 90 deg), and its phase angle
psi as measured counter- clockwise from the
+Y axis [psi = arctan (-y/x)].
Heliospheric Solar Magnetospheric - A coordinate
system where the X axis is from Earth to Sun,
Z axis is northward in a plane containing
the X axis and the geomagnetic dipole axis.
IAU referential frame for Jupiter - A coordinate system
rotating with body where Z is along the rotational axis,
X is oriented to a reference point on the body equatorial plane.
IAU referential frame for Mars - A coordinate system
rotating with body where Z is along the rotational axis,
X is oriented to a reference point on the body equatorial plane.
IAU referential frame for Saturn - A coordinate system
rotating with body where Z is along the rotational axis,
X is oriented to a reference point on the body equatorial plane.
IAU referential frame for Venus - A coordinate system
rotating with body where Z is along the rotational axis,
X is oriented to a reference point on the body equatorial plane.
An astronomical coordinate system which uses
the mean equator and equinox of Julian date
2451545.0 TT (Terrestrial Time), or January
1, 2000, noon TT. (aka J2000) to define a
celestial reference frame.
Jovian Solar Magnetospheric - A coordinate
system related to Jupiter where the X axis
is from Jupiter to Sun, Z axis is northward
in a plane containing the X axis and the Jovian
dipole axis.
Jovian Solar Orbital - A coordinate system
related to Jupiter where X anti-sunward, Y
along the orbital velocity direction.
Kronian Solar Magnetospheric - A coordinate
system related to Saturn where the X axis
is anti-sunward, Z axis is northward in a
plane containing the X axis and the Kronian
dipole axis.
Kronian Solar Orbital - A coordinate system
related to Saturn where X is anti-sunward,
Y along the orbital velocity direction.
Local Geomagnetic - A coordinate system used
mainly for Earth surface or near Earth surface
magnetic field data. X axis northward from
observation point in a geographic meridian.
Z axis downward towards Earth's center. In
this system, H (total horizontal component)
= SQRT (Bx^2 + By^2) and D (declination angle)
= arctan (By/Bx)
Geomagnetic - geocentric. Z axis is parallel
to the geomagnetic dipole axis, positive north.
X is in the plane defined by the Z axis and
the Earth's rotation axis. If N is a unit
vector from the Earth's center to the north
geographic pole, the signs of the X and Y
axes are given by Y = N x Z, X = Y x Z.. See
Russell, 1971, and <http://cdpp.cnes.fr/00428.pdf>
Magnetic Field Aligned - A coordinate system
spacecraft-centered system with Z in the direction
of the ambient magnetic field vector. X is
in the plane defined by Z and the spacecraft-Sun
line, positive sunward. See <http://cdpp.cnes.fr/00428.pdf>
Mars/Mercury Solar Orbital A coordinate system
related to Mars or Mercury. A coordinate system
where, depending on the body (Mars or Mercury),
X is anti-sunward, Y along the orbital velocity
direction.
Radial Tangential Normal. Typically centered
at a spacecraft. Used for IMF and plasma V
vectors. R (radial) axis is radially away
from the Sun, T (tangential) axis is normal
to the plane formed by R and the Sun's spin
vector, positive in the direction of planetary
motion. N (normal) is R x T.
Spacecraft - A coordinate system defined by
the spacecraft geometry and/or spin. Often
has Z axis parallel to spacecraft spin vector.
X and Y axes may or may not corotate with
the spacecraft. See SR and SR2 below.
Solar Ecliptic - A heliocentric coordinate
system where the Z axis is normal to the ecliptic
plane, positive northward. X axis is positive
towards the first point of Aries (from Earth
to Sun at vernal equinox). Same as HAE above.
See <http://nssdc.gsfc.nasa.gov/space/helios/coor_des.html>
Solar Magnetic - A geocentric coordinate system
where the Z axis is northward along Earth's
dipole axis, X axis is in plane of z axis
and Earth-Sun line, positive sunward. See
Russell, 1971.
Spin Reference - A special case of a Spacecraft
(SC) coordinate system for a spinning spacecraft.
Z is parallel to the spacecraft spin vector.
X and Y rotate with the spacecraft. See <http://cdpp.cnes.fr/00428.pdf>
Spin Reference 2 - A special case of a Spacecraft
(SC) coordinate system for a spinning spacecraft.
Z is parallel to the spacecraft spin vector.
X is in the plane defined by Z and the spacecraft-Sun
line, positive sunward. See <http://cdpp.cnes.fr/00428.pdf>
Spacecraft Solar Ecliptic - A coordinate system
used for deep space spacecraft, for example
Helios. - X axis from spacecraft to Sun. Z
axis normal to ecliptic plane, positive northward.
Note: Angle between normals to ecliptic and
to Helios orbit plane ~ 0.25 deg.
Selenocentric Solar Ecliptic. The X axis
points from the center of the Earth's moon
to the sun, the Z axis is normal to the ecliptic
plane, positive northward. And the Y axis
completes the right-handed set of axes.
A coordinate system where X lies in the plane
normal to and in the direction of motion of
the spacecraft, Z is normal to this plane
and Y completes the triad in a right-handed
coordinate system.
Kronian Solar Orbital - A coordinate system
related to Saturn where X is anti-sunward,
Y along the orbital velocity direction.
Venus Solar Orbital - A coordinate system
related to Venus where X is anti-sunward,
Y along the orbital velocity direction.
The World Geodetic System (WGS) defines a
reference frame for the earth, for use in
geodesy and navigation. The WGS84 uses the
zero meridian as defined by the Bureau International
de l'Heure.
Descriptor of a simulation model: type of
numerical scheme, versions,...
A container of one or more sets of version
information.
The version number of the model.
A characterization of the spatial extent over
which the measurement was taken.
Properties
A container of information regarding a property
of an input parameter.
A container of information regarding the output
parameters of the simulation run.
Description of a simulation run, including
the code ID, the run spatial and temporal
description, and all the relevant inputs.
Attributes of a model.
Parameters associated to the simulation time.
Time at which a diagnosis is performed and
quantity saved.
Parameters associated to the simulation spatial
domain.
Parameters associated to the simulation boundaries.
Parameters associated to the simulation boundaries.
Radius of the Region in the simulation.
A container of information regarding an input
parameter of the simulation run.
Parameters associated to a field imposed in
the simulation
Parameters associated to a chemical process
happening in the simulation
Data stored as numerical values in a specified
format. A Numerical Data resource is a type
of "data product" which is a set of data that
is uniformly processed and formatted, from
one or more instruments, typically spanning
the full duration of the observations of the
relevant instrument(s). A data product may
consist of a collection of granules of successive
time spans, but may be a single high-level
entity.
A graphical representation of data wherein
the underlying numeric values are not (readily)
accessible for analysis.. Examples are line
plots and spectrograms. A Display Data resource
is a type of "data product" which is a set
of data that is uniformly processed and formatted,
from one or more instruments, typically spanning
the full duration of the observations of the
relevant instrument(s). A data product may
consist of a collection of granules of successive
time spans, but may be a single high-level
entity.
Back wall of the simulation domain by which
the plasma flow may exit the simulation.
Chemical formula representing a population
of particle.
Language in which a numerical code is written.
A string list of the labels of each dimension
of the spatial domain.
Density profile of the particles in a population.
The nnu8mber of items along one axis.
Velocity distribution of the particles in
a population.
Duration of the simulation.
Number of field dimensions in the simulation
domain.
Field model imposed in the simulation run.
A string list of the values of the input parameter.
Front wall of the simulation domain by which
the plasma flow may be injected.
A string list of the cell sizes in each dimension.
Structure of the simulation grid.
A string list of the labels of each dimension
of the input parameter.
A URL to a table containing input parameters.
A string defining the ID of the model.
URL pointing toward the description of a model
used in the definition of a property or an
input.
Mass of an object referenced as a simulated
region.
Obstacle in the simulation domain.
A length or era of time.
A list of the component in each dimension
of the vector normal to a plane.
A list of the component in each dimension
of a point in plane.
A concise description of a particle population,
for references.
Charge of a particle in a population, in units
of the charge of a proton. Charge state of
a bare proton = 1.
The number of particles per unit volume.
The rate at which particles or energy is passing
through a unit area in a unit time.
The total number of protons and neutrons (together
known as nucleons) in an atomic nucleus.
A measure of the kinetic energy of random
motion with respect to the average. Temperature
is properly defined only for an equilibrium
particle distribution (Maxwellian distribution).
Coefficient associated to a chemical process.
Model used to describe a chemical process.
The number of items that can be produced
during a given period of time.
A string list of the labels of each dimension
of the property.
Model used to define a property.
A URL to a table containing property values.
A string list of the values of the property.
The length of a line segment from a center
point to the perimeter.
The values that define the start point of
a region.
The values that define the ending point of
a region.
Side walls of the simulation domain.
The identifier of the a simulated instrument
description.
Number of spatial dimensions in the simulation
domain.
Spatial step between two elements of the diagnosis.
The longitude on the surface of an object
which is directly below another object.
Time at which the coverage by the element
start.
Time Step.
Time at which the coverage by the element
stop.
The total number of items that can be produced
during a given period of time.
Number of velocity dimensions in the simulation
domain.
The text string for a version indicator.
The text string for a UCD, compliant with the IVOA recommendation.
Whether the simulation results are obtained
from a stationary solution or are dynamically
computed.
Cross section of the reaction, when the reaction
implies the collision of two particles.
Reaction rate: reaction production per unit
of time.
Type of chemical process.
Chemical process involving a charge transfer
from an ion (which becomes neutral) to a neutral
(which becomes ionized).
Chemical process by which an ion is neutralized
by capturing an electron, and splits in two
new neutral species.
Chemical process by which a neutral is ionized
thanks to the energy from the impact of an
electron.
Chemical process by which a neutral is ionized
thanks to the energy from a photon.
Quantities that are saved during a given diagnosis.
Identifiers for areas of the physical world
which may be occupied or observed.
A characterization of the numerical scheme
used in the simulation.
A numerical scheme simulating ions as particles
and electrons as a fluid.
A numerical scheme simulating ions and electrons
as macroparticles.
A shape generated by the rotation of a parabola
around its axis of symmetry.
Identifiers for areas of the physical world
which may be occupied or observed.
The biggest moon of Jupiter planet in our
solar system.
Direction-dependent property.
Symmetry of the simulation domain.
Axial symmetry.
Central Symmetry.
Symmetry across a plane.
Yes or No