OMNIweb mirror - Space monitoring data center

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 31.12.2008

Time interval


Output type
Table Graphic File
Data channels

Bartels rotation number	ID for IMF spacecraft
ID for SW plasma spacecraft	# of points in the IMF averages
# of points in the plasma averages	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]
sigma\|B\| [RMS Standard Deviation in average magnitude (word 10), nT]	sigma B [RMS Standard Deviation in field vector, nT]
sigma Bx [RMS Standard Deviation in GSE X-component average, nT]	sigma By [RMS Standard Deviation in GSE Y-component average, nT]
sigma Bz [RMS Standard Deviation in GSE Z-component average, nT]	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) NpV2 (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 = [(T4.16/105) + 5.34] Np / B**2]
Alfven mach number [Ma = (V * Np*0.5) / 20 B]	Kp [Planetary Geomagnetic Activity Index]
R [sunspot number]	DST index [nT]
AE-index [from NGDC]	Proton flux [number/cmsq sec sr >1MeV]
Proton flux [number/cmsq sec sr >2MeV]	Proton flux [number/cmsq sec sr >4MeV]
Proton flux [number/cmsq sec sr >10MeV]	Proton flux [number/cmsq sec sr >30MeV]
Proton flux [number/cmsq sec sr >60MeV]	Flag [-1,0,1,2,3,4,5,6]