OMNIweb 2

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

Data available from 02.11.1963 to 31.12.2012 by http (this page) and FTP

Time interval
Output type
Table Graphic File
Data channels
System information
Bartels rotation number	ID for IMF spacecraft
ID for SW plasma spacecraft	# of points in the IMF averages
# of points in the plasma averages
Magnetic field
Field Magnitude Average |B|, [1/N SUM |B|, nT]	Magnitude of Average Field Vector [sqrt(Bx^2+By^2+Bz^2)]
Lat.Angle of Aver. Field Vector [Degrees (GSE coords)]	Long.Angle of Aver.Field Vector [Degrees (GSE coords)]
Bx GSE, GSM [nT] By GSE [nT] Bz GSE [nT]	By GSM [nT] Bz GSM [nT]
RMS Standard Deviation
sigma|B| [... in average magnitude (word 10), nT]	sigma B [... in field vector, nT]
sigma Bx [... in GSE X-component average, nT]	sigma By [... in GSE Y-component average, nT]
sigma Bz [... in GSE Z-component average, nT]
Solar wind (plasma) information
Proton temperature [Degrees, K]	Proton Density [N/cm^3]
Plasma (Flow) speed [km/s]	Plasma Flow Long. Angle [Degrees, quasi-GSE]
Plasma Flow Lat. Angle [Degrees, GSE]	Na/Np [Alpha/Proton ratio]
Flow Pressure [P (nPa) = (1.67/10**6) * Np*V**2 * (1+ 4*Na/Np)]	sigma T [Degrees, K]
sigma N [N/cm^3]	sigma V [km/s]
sigma phi V [Degrees]	sigma theta V [Degrees]
sigma-Na/Np	Electric field [-[V(km/s) * Bz (nT; GSM)] * 10**-3. (mV/m)]
Plasma beta [Beta = [(T*4.16/10**5) + 5.34] * Np / B**2]	Alfven mach number [Ma = (V * Np**0.5) / 20 * B]
Proton fluxes [number/cmsq sec sr]
p, E >1MeV]	p, E >2MeV]
p, E >4MeV]	p, E >10MeV]
p, E >30MeV]	p, E >60MeV]
Geomagnetic indices
Kp [Planetary Geomagnetic Activity Index]	DST index [nT]
AE-index [from NGDC]	Ap-index, nT, from NGDC
R [sunspot number]	Flag [-1,0,1,2,3,4,5,6]
f10.7_index, from NGDC	PC(N) index, from NGDC
AL-index, nT, from Kyoto	AU-index, nT, from Kyoto
Magnetosonic mach number = V/Magnetosonic_speed