COHO Web

The data in this section is mirrored from NASA COHOWeb. All the appropriate descriptions of the satellite missions involved can be found there.

This page was created with the kind help of Dr. Joseph H. King, NASA/NSSDC, who supplied OMNI and COHO data.

Helios-1

Data available from 19.01.1975 to 22.02.1980

Time interval

Output type

TableGraphicFile

Data channels

Carrington rotation number

Spacecraft heliocentric distance [astronomical units]

Heliographic inertial longitude [degrees]

Heliographic inertial latitude [degrees]

Earth-Sun-source separation angle [degrees]

BX in SSE coordinate system [nanoteslas]

BY in SSE coordinate system [nanoteslas]

BZ in SSE coordinate system [nanoteslas]

BR in RTN coordinate system [nanoteslas]

BT in RTN coordinate system [nanoteslas]

BN in RTN coordinate system [nanoteslas]

Scalar B [nanoteslas]

Plasma flow bulk velocity [km/s]

Plasma flow velocity vector elevation angle [degrees]

Plasma flow velocity vector azimuth angle [degrees]

Plasma density [cm-3]

Radial component of proton temperature [Ko]

Helios-2

Data available from 13.01.1976 to 28.02.1980

Time interval

Output type

TableGraphicFile

Data channels

Carrington rotation number

Spacecraft heliocentric distance [astronomical units]

Heliographic inertial longitude [degrees]

Heliographic inertial latitude [degrees]

Earth-Sun-source separation angle [degrees]

BX in SSE coordinate system [nanoteslas]

BY in SSE coordinate system [nanoteslas]

BZ in SSE coordinate system [nanoteslas]

BR in RTN coordinate system [nanoteslas]

BT in RTN coordinate system [nanoteslas]

BN in RTN coordinate system [nanoteslas]

Scalar B [nanoteslas]

Plasma flow bulk velocity [km/s]

Plasma flow velocity vector elevation angle [degrees]

Plasma flow velocity vector azimuth angle [degrees]

Plasma density [cm-3]

Radial component of proton temperature [Ko]

Voyager 1

Data available from 27.02.1978 to 21.12.1989

Time interval

Output type

TableGraphicFile

Data channels

Spacecraft heliocentric distance [astronomical units]

Heliographic inertial longitude [degrees]

Heliographic inertial latitude [degrees]

BR in RTN coordinate system [nanoteslas]

BT in RTN coordinate system [nanoteslas]

BN in RTN coordinate system [nanoteslas]

Scalar B [nanoteslas]

Plasma flow bulk velocity [km/s]

Plasma flow velocity vector elevation angle [degrees]

Plasma flow velocity vector azimuth angle [degrees]

Plasma density [cm-3]

Radial component of proton temperature [Ko]

Voyager 2

Data available from 12.02.1978 to 31.12.1997

Time interval

Output type

TableGraphicFile

Data channels

Spacecraft heliocentric distance [astronomical units]

Heliographic inertial longitude [degrees]

Heliographic inertial latitude [degrees]

BR in RTN coordinate system [nanoteslas]

BT in RTN coordinate system [nanoteslas]

BN in RTN coordinate system [nanoteslas]

Scalar B [nanoteslas]

Plasma flow bulk velocity [km/s]

Plasma flow velocity vector elevation angle [degrees]

Plasma flow velocity vector azimuth angle [degrees]

Plasma density [cm-3]

Radial component of proton temperature [Ko]

Pioneer 10

Data available from 22.08.1972 to 31.12.1995

Time interval

Output type

TableGraphicFile

Data channels

Spacecraft heliocentric distance [astronomical units]

Heliographic inertial longitude [degrees]

Heliographic inertial latitude [degrees]

BR in RTN coordinate system [nanoteslas]

BT in RTN coordinate system [nanoteslas]

BN in RTN coordinate system [nanoteslas]

Scalar B [nanoteslas]

Plasma flow bulk velocity [km/s]

Plasma flow velocity vector elevation angle [degrees]

Plasma flow velocity vector azimuth angle [degrees]

Plasma density [cm-3]

Radial component of proton temperature [Ko]

Pioneer 11

Data available from 27.09.1973 to 25.06.1992

Time interval

Output type

TableGraphicFile

Data channels

Spacecraft heliocentric distance [astronomical units]

Heliographic inertial longitude [degrees]

Heliographic inertial latitude [degrees]

BR in RTN coordinate system [nanoteslas]

BT in RTN coordinate system [nanoteslas]

BN in RTN coordinate system [nanoteslas]

Scalar B [nanoteslas]

Plasma flow bulk velocity [km/s]

Plasma flow velocity vector elevation angle [degrees]

Plasma flow velocity vector azimuth angle [degrees]

Plasma density [cm-3]

Radial component of proton temperature [Ko]

Pioneer Venus Orbiter

Data available from 01.01.1980 to 30.12.1992

Time interval

Output type

TableGraphicFile

Data channels

X VSO [RV]

Y VSO [RV]

Z VSO [RV]

Spacecraft heliocentric distance [astronomical units]

Heliographic inertial longitude [degrees]

Heliographic inertial latitude [degrees]

Bx VSO [nanoteslas]

By VSO [nanoteslas]

Bz VSO [nanoteslas]

BR in RTN coordinate system [nanoteslas]

BT in RTN coordinate system [nanoteslas]

BN in RTN coordinate system [nanoteslas]

Scalar B [nanoteslas]

Plasma flow bulk velocity [km/s]

Plasma flow velocity vector elevation angle [degrees]

Plasma flow velocity vector azimuth angle [degrees]

Plasma density [cm-3]

Ulysses

Data available from 29.03.1991 to 28.11.1998

Time interval

Output type

TableGraphicFile

Data channels

Spacecraft heliocentric distance [astronomical units]

Heliographic inertial longitude [degrees]

Heliographic inertial latitude [degrees]

BR in RTN coordinate system [nanoteslas]

BT in RTN coordinate system [nanoteslas]

BN in RTN coordinate system [nanoteslas]

Scalar B [nanoteslas]

Plasma flow bulk velocity [km/s]

Plasma flow velocity vector elevation angle [degrees]

Plasma flow velocity vector azimuth angle [degrees]

Plasma proton density [cm-3]

Plasma alpha density [cm-3]

Plasma max.temperature [Ko]

Plasma min.temperature [Ko]