COHO Plot, Listing, or output files

Cohoweb Data Explorer - Near-Earth Heliosphere Data - NSSDC - Goddard Space Flight Center

Interface to produce Plots, listings, output files

This page provides the ability to plot or list (or create a file of) any selection of the Voyager2 parameters listed below,

Note: Voyager magnetometer data past 1989 must be used very carefully due to the very low magnetic field values being measured as compared to the pre-launch magnetometer accuracy requirements. Please click here for details.
Original plasma data are at: https://spdf.gsfc.nasa.gov/pub/data/voyager/voyager2/plasma/hour/ and ftp://space.mit.edu/pub/plasma/vgr/v2/key/ ( full version)

To avoid misinterpretation, we provide plot option for mag field automatically with uncertanties. See plotting options at the bottom of this page to remove that uncertanties from plot option.

Select an activity

Plot data List data Create file

Select resolution
Hourly averaged Daily averaged

Click here to get time spans for individual parameters.
Enter start and stop dates (Use Year, Month, Day YYYYMMDD or Year Day_of_year YYYYDOY)
Start Stop

Select variable

Position in HGI
Heliocentric Distance (start of data interval), AU

HelioGraphic Inertial (HGI) Latitude, deg.

HGI Longitude, deg.

Magnetic field in RTN
IMF BR in RTN(Radial-Tangential-Normal) coordinate system, nT

IMF BT, nT (RTN)

IMF BN, nT (RTN)

IMF Magnitude (average of fine scale magnitudes), nT

Plasma in RTN
Proton Flow Speed, km/sec

Proton Flow Elevation Angle/Latitude, (RTN), deg.

Proton Flow Azimuth Angle/Longitude (RTN), deg.

Proton Density, n/cc

Proton Temperature, K

LECP Proton fluxes (1/(sec-cm**2-ster-MeV)

Flux, protons 0.52-1.45 MeV (ch1_flux)

Flux, protons 3.04-17.3 MeV (ch16_flux)

Flux, protons 22.0-30.0 MeV (ch23_flux)

CRS(6-hr) Proton fluxes (1/(sec-cm**2-ster-MeV)

3.000-4.600 MeV

4.600-6.200 MeV

6.200-7.700 MeV

7.700-12.800 MeV

12.800-17.900 MeV

17.900-30.000 MeV

30.000-48.000 MeV

48.000-56.000 MeV

75.861-82.562 MeV

130.339 - 154.217 MeV

154.217 - 171.338 MeV

171.338 - 193.643 MeV

193.643 - 208.152 MeV

208.152 - 245.690 MeV

245.690 - 272.300 MeV

272.300 - 344.010 MeV

344.010 - 478.623 MeV

478.623 - 598.667 MeV

Position in HGI
Heliocentric Distance (start of data interval), AU
HelioGraphic Inertial (HGI) Latitude, deg.
HGI Longitude, deg.
Magnetic field in RTN
IMF BR in RTN(Radial-Tangential-Normal) coordinate system, nT
IMF BT, nT (RTN)
IMF BN, nT (RTN)
IMF Magnitude (average of fine scale magnitudes), nT
Plasma in RTN
Proton Flow Speed, km/sec
Proton Flow Elevation Angle/Latitude, (RTN), deg.
Proton Flow Azimuth Angle/Longitude (RTN), deg.
Proton Density, n/cc
Proton Temperature, K

Advanced plot selections (optional)

Y-axis Scale: Show uncertanties for mag data (after 1989):
Character size(0.5-2.0): Symbol Size(0.1-4.0):

Plot Symbol: Image size (pixels) X: Y:

SPDF > OMNIWeb

If you have any questions/comments about OMNIWEB system, contact:
Dr. Natalia Papitashvili, Space Physics Data Facility, Mail Code 672, NASA/Goddard Space Flight Center, Greenbelt, MD 20771

Y-axis Scale:	Show uncertanties for mag data (after 1989):
Character size(0.5-2.0):	Symbol Size(0.1-4.0):
Plot Symbol:	Image size (pixels) X: Y:

NASA Official: Robert Candey (Robert.M.Candey@nasa.gov), Head of the Space Physics Data Facility