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STEREO SCIENCE CENTER

Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 28-Jun-2016 13:00 UT

Plot of spacecraft positions

This figure plots the current positions of the STEREO Ahead (red) and Behind (blue) spacecraft relative to the Sun (yellow) and Earth (green). The dotted lines show the angular displacement from the Sun. Units are in A.U.

When the two spacecraft are close to Earth, an expanded view of the region around Earth will appear on the right, in the same orientation as the Sun-centered view.

Other resources:



                                STEREO-B           Earth        STEREO-A

Heliocentric distance (AU)      1.017974        1.016636        0.967460
Semidiameter (arcsec)            942.684         943.925         991.904

HCI longitude                    350.943         201.104          45.683
HCI latitude                       1.443           2.625          -5.329

Carrington longitude             214.624          64.785         269.364
Carrington rotation number      2178.404        2178.820        2179.252

Heliographic (HEEQ) longitude    149.839           0.000        -155.421
Heliographic (HEEQ) latitude       1.443           2.625          -5.329

HAE longitude                     66.600         277.025         121.690

Earth Ecliptic (HEE) longitude   149.575           0.000        -155.335
Earth Ecliptic (HEE) latitude      0.295           0.000          -0.124

Roll from ecliptic north           0.504                           0.270
Roll from solar north              7.665                           5.329

Light travel time to Earth (min)          16.329          16.122

Separation angle with Earth              149.573         155.335
Separation angle A with B                         55.092


Last Revised: Tuesday, 28-Jun-2016 09:01:33 EDT
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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