STEREO S/WAVES Direction Finding data
These files includes radio measurements recorded by the STEREO-A/WAVES
instrument. Time resolution varies with instrument mode ranging from 15
seconds to 1 minute. Organized by spacecraft (ahead/behind), low or high
frequency receivers (hfr/lfr), and year.
Data Variable Descriptions:
- Power spectral density after 1% background subtraction and antenna
calibration
[PSD_FLUX]
- Suitable for general investigation
- Power spectral density after 1% background subtraction and antenna
calibration in solar radio flux unit normalized to 1 au [PSD_SFU]
- Suitable for multi-spacecraft investigation
- Radio flux density [Data available after 04-May-2007] [STOKES_I]
- Normalized linear polarization [Data available after 04-May-2007]
[STOKES_Q]
- Normalized linear polarization [Data available after 04-May-2007]
[STOKES_U]
- Normalized circular polarization [Data available after 04-May-2007]
[STOKES_V]
- The angular half aperture of the source as seen by a spacecraft (uniform
profile) [Data available after 04-May-2007] [SOURCE_SIZE]
- Wave vector colatitude in the Radial-Tangential-Normal (RTN) system [Data
available after 04-May-2007] [WAVE_COLATITUDE_RTN]
- X axis points from the spacecraft center to Sun, and the Y axis is the cross
product of the solar rotational axis and X, and lies in the solar equatorial
plane (towards the West limb).
- Wave vector azimuth in the Radial-Tangential-Normal (RTN) system [Data
available after 04-May-2007] [WAVE_AZIMUTH_RTN]
- X axis points from the spacecraft center to Sun, and the Y axis is the cross
product of the solar rotational axis and X, and lies in the solar equatorial
plane (towards the West limb).
- Wave vector colatitude in the Heliocentric Inertial (HCI) system [Data
available after 04-May-2007] [WAVE_COLATITUDE_HCI]
- Z is the solar north rotational axis, and X is the solar ascending node on
the J2000 ecliptic.
- Wave vector azimuth in the Heliocentric Inertial (HCI) system [Data
available after 04-May-2007] [WAVE_AZIMUTH_HCI]
- Z is the solar north rotational axis, and X is the solar ascending node on
the J2000 ecliptic.
- Wave vector colatitude in the Heliocentric Earth Ecliptic (HEE) system
[Data available after 04-May-2007] [WAVE_COLATITUDE_HEE]
- X is the Sun-Earth line, and Z is the north pole for the ecliptic of date.
- Wave vector azimuth in the Heliocentric Earth Ecliptic (HEE) system [Data
available after 04-May-2007] [WAVE_AZIMUTH_HEE]
- X is the Sun-Earth line, and Z is the north pole for the ecliptic of date.
- Wave vector colatitude in the Heliocentric Earth Equatorial (HEEQ) system
[Data available after 04-May-2007] [WAVE_COLATITUDE_HEEQ]
Z is the solar rotation axis, and X is in the plane containing the Z axis and
Earth, at the intersection of the solar central meridian, and the heliographic
equator. When converted to longitude and latitude, this is known as Stonyhurst
heliographic coordinates.
- Wave vector azimuth in the Heliocentric Earth Equatorial (HEEQ) system
[Data available after 04-May-2007] [WAVE_AZIMUTH_HEEQ]
Z is the solar rotation axis, and X is in the plane containing the Z axis and
Earth, at the intersection of the solar central meridian, and the heliographic
equator. When converted to longitude and latitude, this is known as Stonyhurst
heliographic coordinates.
- STEREO spacecraft position in the Heliocentric Inertial (HCI) system in km
[SC_POS_HCI]
Also called Ecliptic J2000. Z is the solar north rotational axis, and X is the
solar ascending node on the J2000 ecliptic.
- STEREO spacecraft position in the Heliocentric Earth Ecliptic (HEE) system
in km [SC_POS_HEE]
X is the Sun-Earth line, and Z is the north pole for the ecliptic of date.
- STEREO spacecraft position in the Heliocentric Earth Equatorial (HEEQ)
system in km [SC_POS_HEEQ]
Z is the solar rotation axis, and X is in the plane containing the Z axis and
Earth, at the intersection of the solar central meridian, and the heliographic
equator. When converted to longitude and latitude, this is known as Stonyhurst
heliographic coordinates.
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