OMNI/OMNI2

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Image from http://omniweb.gsfc.nasa.gov/images on Mar 09 2010 16:41:30 UT

Contents

  1. Summary
  2. Notes
  3. Acknowledgment
  4. Data
    1. Merged Plots and Files
    2. Data Subsets

1 Summary

OMNI 2 was created in 2003 as a successor to the "old OMNI" data set first created at the National Space Science Data Center (NSSDC) in the mid-1970's and maintained and extended thereafter by NSSDC. The OMNI data set is an hourly resolution multi-source data set now spanning the period November, 1963 (IMP 1 launch) to May, 2003. The primary data of OMNI are near-Earth solar wind magnetic field and plasma parameters. Also included are 1973-2001 energetic particle data from IMP 8 and sunspot number and geomagnetic (Dst, Kp, C9) activity indices. AE indices have replaced C9 indices in OMNI 2, and 1967-1972 IMP 4 and 5 particle data have been added.

2 Notes

To improve access speed, data are derived from cache of original data source on December 1, 2008. See Notes#Versioning for more information about versioning and caching.

On April 29, 2009, eight new geomagnetic activity index variables were added to the OMNI2 1-min and 5-min. These will be included in the next update.

3 Acknowledgment

4 Data

4.1 Merged Plots and Files

  • Overview data coverage plot: | png | pdf | eps |

4.2 Data Subsets 

Date From:        
Date To:          
Averaging Window:   Averaging Notes
Output:             Output Notes
Filter:             Filter Notes
Plot size:        Width  Height 
Show more options

Year 1963, 1964, etc. (OMNI2 1-hour) | Plot
Decimal Day January 1 = Day 1 (OMNI2 1-hour) | Plot
Hour 0, 1,...,23,(OMNI2 1-hour) | Plot
Bartels rotation number (OMNI2 1-hour) | Plot
ID for IMF spacecraft (OMNI2 1-hour) | Plot
ID for SW plasma spacecraft (OMNI2 1-hour) | Plot
Number of points in the IMF averages (OMNI2 1-h | Plot
Number of points in the plasma averages (OMNI2 | Plot
Field Magnitude Average |B|, 1/N SUM |B| (OMNI2 | Plot
Magnitude of Average Field Vector sqrt(Bx^2+By^ | Plot
Lat.Angle of Aver. Field Vector (OMNI2 1-hour) | Plot
Long.Angle of Aver.Field Vector (OMNI2 1-hour) | Plot
Bx near Earth (GSE) (OMNI2 1-hour) | Plot
By near Earth (GSE) (OMNI2 1-hour) | Plot
Bz near Earth (GSE) (OMNI2 1-hour) | Plot
By near Earth (GSM) (OMNI2 1-hour) | Plot
Bz near Earth (GSM) (OMNI2 1-hour) | Plot
sigma|B| RMS Standard Deviation in average magn | Plot
sigma B RMS Standard Deviation in field vector | Plot
sigma Bx RMS Standard Deviation in GSE X-compon | Plot
sigma By RMS Standard Deviation in GSE Y-compon | Plot
sigma Bz RMS Standard Deviation in GSE Z-compon | Plot
Plasma temperature (OMNI2 1-hour) | Plot
Ion Density (OMNI2 1-hour) | Plot
Plasma (Bulk) speed (OMNI2 1-hour) | Plot
Plasma (Bulk) Flow Long. Angle, i.e. positive f | Plot
Plasma (Bulk) Flow Lat. Angle, positive to the | Plot
Na/Np (OMNI2 1-hour) | Plot
Flow Pressure (OMNI2 1-hour) = (1.67/10**6) * N | Plot
sigma T (OMNI2 1-hour) | Plot
sigma N (OMNI2 1-hour) | Plot
sigma V (OMNI2 1-hour) | Plot
sigma phi V (OMNI2 1-hour) | Plot
sigma theta V (OMNI2 1-hour) | Plot
sigma-ratio (OMNI2 1-hour) | Plot
Electric field = V(km/s) * Bz (nT; GSM) * 10**- | Plot
Plasma beta = ((T*4.16/10**5) + 5.34) * Np / B* | Plot
Alfven mach number = (V * Np**0.5) / 20 * B (OM | Plot
Kp Planetary Geomagnetic Activity Index (e.g. 3 | Plot
R Sunspot number (OMNI2 1-hour) | Plot
DST Index (OMNI2 1-hour) | Plot
AE index from NGDC (OMNI2 1-hour) | Plot
Proton flux >1 Mev (OMNI2 1-hour) | Plot
Proton flux >2 Mev (OMNI2 1-hour) | Plot
Proton flux >4 Mev (OMNI2 1-hour) | Plot
Proton flux >10 Mev (OMNI2 1-hour) | Plot
Proton flux >30 Mev (OMNI2 1-hour) | Plot
Proton flux >60 Mev (OMNI2 1-hour) | Plot
Proton flux flag (-1,0,1,2,3,4,5,6) (OMNI2 1-ho | Plot

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