STEREO-A/WAVES Low Frequency Receiver, Data

2023-09-01 12:34:56.789

Radio measurements of power spectral density,radio flux density, Stokes Q, U, V parameters and angular half width of source measured by the STEREO-A/WAVES instrument. There a 48 linearly spaced frequency channels from 2.61 to 153 kHz. Time resolution varies with instrument mode ranging from 15 seconds to 1 minute.

Please acknowledge the STEREO/Waves team. Data provided are Publicly available. If used in presentations or publications, please acknowledge STEREO/Waves Investigation (M. Maksimovic and S. D. Bale, PIs). Please read carefully the caveats attached to the data. For reporting purposes, we request bibliography information for any publication, etc., using these data. Please send information on the use of this data to M. Maksimovic and S. D. Bale (PIs).

Online

Open

CDF

None

Please acknowledge the Principal Investigator Milan Maksimovic (milan.maksimovic@obspm.fr) and Stuart D. Bale (bale@berkeley.edu). Please acknowledge the Data Providers and CDAWeb when using these Data.

PT15S

Epoch (Time)

Epoch

Epoch encoded as Terrestrial Time on rotating Earth geoid, ns since J2000

This Parameter exhibits an increasing Monotonic Progression

ns

1.0e-9>s

2006-01-01T00:00:00.000000000

2099-12-31T23:59:59.999000000

9999-12-31T23:59:59.999999999

Frequency

FREQUENCY

Frequency channel

Hz

-1.0e+31

Receiver Background

BACKGROUND

1% receiver background of each antenna channel configuration

V^2/Hz

-1.0e+31

Antenna Configuration

Time series defined by using: Epoch

SENSOR_CONFIG

Dual channel receiver antenna configuration

00 (Off/Off) 10 (+Ex/Off) 20 (-Ey/Off) 30 (Ex-Ey/Off) 01 (Off/+Ez) 02 (Off/+Ey) 03 (Off/Ez-Ey) 11 (+Ex/+Ez) 12 (+Ex/-Ey) 13 (+Ex/Ez-Ey) 21 (-Ey/+Ez) 31 (Ex-Ey/+Ez) -22 (-Ey/-Ey) -32 (Ex-Ey/-Ey) -23 (-Ey/Ez-Ey) -33 (Ex-Ey/Ez-Ey)

PT15S

-128

Time Offset

Time series defined by using: Epoch

TIMING

Temporal offset of each antenna channel configuration

PT15S

s

-1.0e+31

Power Spectral Density

Time series defined by using: Epoch

PSD_V2

Power spectral density before 1% background subtraction and antenna calibration

Suitable for analysis of weak signals

PT15S

V^2/Hz

-1.0e+31

Power Spectral Density

Time series defined by using: Epoch

PSD_FLUX

Power spectral density after 1% background subtraction and antenna calibration

Suitable for general investigation

PT15S

W/m^2/Hz

-1.0e+31

Power Spectral Density

Time series defined by using: Epoch

PSD_SFU

Power spectral density after 1% background subtraction and antenna calibration in solar radio flux unit normalized to 1 au

Suitable for multi-spacecraft investigation

PT15S

sfu

-1.0e+31

Stokes I

Time series defined by using: Epoch

STOKES_I

Radio flux density [Data available after 04-May-2007]

Details on polarization parameters can be found here: https://doi.org/10.1007/s11214-007-9255-6

PT15S

W/m^2/Hz

-1.0e+31

Stokes Q

Time series defined by using: Epoch

STOKES_Q

Normalized linear polarization [Data available after 04-May-2007]

Details on polarization parameters can be found here: https://doi.org/10.1007/s11214-007-9255-6

PT15S

-1.0e+31

Stokes U

Time series defined by using: Epoch

STOKES_U

Normalized linear polarization [Data available after 04-May-2007]

Details on polarization parameters can be found here: https://doi.org/10.1007/s11214-007-9255-6

PT15S

-1.0e+31

Stokes V

Time series defined by using: Epoch

STOKES_V

Normalized circular polarization [Data available after 04-May-2007]

Details on polarization parameters can be found here: https://doi.org/10.1007/s11214-007-9255-6

PT15S

-1.0e+31

Source Size

Time series defined by using: Epoch

SOURCE_SIZE

The angular half aperture of the source as seen by a spacecraft (uniform profile) [Data available after 04-May-2007]

Based on https://doi.org/10.1029/2011JA017333

PT15S

°

-1.0e+31

Colatitude

Time series defined by using: Epoch

WAVE_COLATITUDE_RTN

Wave vector colatitude in the Radial-Tangential-Normal (RTN) system [Data available after 04-May-2007]

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).

PT15S

°

-1.0e+31

Azimuth

Time series defined by using: Epoch

WAVE_AZIMUTH_RTN

Wave vector azimuth in the Radial-Tangential-Normal (RTN) system [Data available after 04-May-2007]

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).

PT15S

°

-1.0e+31

Colatitude

Time series defined by using: Epoch

WAVE_COLATITUDE_HCI

Wave vector colatitude in the Heliocentric Inertial (HCI) system [Data available after 04-May-2007]

Z is the solar north rotational axis, and X is the solar ascending node on the J2000 ecliptic.

PT15S

°

-1.0e+31

Azimuth

Time series defined by using: Epoch

WAVE_AZIMUTH_HCI

Wave vector azimuth in the Heliocentric Inertial (HCI) system [Data available after 04-May-2007]

Z is the solar north rotational axis, and X is the solar ascending node on the J2000 ecliptic.

PT15S

°

-1.0e+31

Colatitude

Time series defined by using: Epoch

WAVE_COLATITUDE_HEE

Wave vector colatitude in the Heliocentric Earth Ecliptic (HEE) system [Data available after 04-May-2007]

X is the Sun-Earth line, and Z is the north pole for the ecliptic of date.

PT15S

°

-1.0e+31

Azimuth

Time series defined by using: Epoch

WAVE_AZIMUTH_HEE

Wave vector azimuth in the Heliocentric Earth Ecliptic (HEE) system [Data available after 04-May-2007]

X is the Sun-Earth line, and Z is the north pole for the ecliptic of date.

PT15S

°

-1.0e+31

Colatitude

Time series defined by using: Epoch

WAVE_COLATITUDE_HEEQ

Wave vector colatitude in the Heliocentric Earth Equatorial (HEEQ) system [Data available after 04-May-2007]

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.

PT15S

°

-1.0e+31

Azimuth

Time series defined by using: Epoch

WAVE_AZIMUTH_HEEQ

Wave vector azimuth in the Heliocentric Earth Equatorial (HEEQ) system [Data available after 04-May-2007]

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.

PT15S

°

-1.0e+31

Spacecraft Position in HCI

Time series defined by using: Epoch

SC_POS_HCI

STEREO spacecraft position in the Heliocentric Inertial (HCI) system in km

Also called Ecliptic J2000. Z is the solar north rotational axis, and X is the solar ascending node on the J2000 ecliptic.

PT15S

km

-3.0e+08

3.0e+08

-1.0e+31

Spacecraft Position in HEE

Time series defined by using: Epoch

SC_POS_HEE

STEREO spacecraft position in the Heliocentric Earth Ecliptic (HEE) system in km

X is the Sun-Earth line, and Z is the north pole for the ecliptic of date.

PT15S

km

-3.0e+08

3.0e+08

-1.0e+31

Spacecraft Position in HEEQ

Time series defined by using: Epoch

SC_POS_HEEQ

STEREO spacecraft position in the Heliocentric Earth Equatorial (HEEQ) system in km

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.

PT15S

km

-3.0e+08

3.0e+08

-1.0e+31