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STEREO SCIENCE CENTER

Important notice about reduced STEREO science operations

 

Where is STEREO Today?

Positions of STEREO A and B for 26-Jul-2014 17:00 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)      1.001640        1.015626        0.967071
Semidiameter (arcsec)            958.057         944.863         992.303

HCI longitude                     65.545         227.440          31.543
HCI latitude                      -6.532           5.356          -3.930

Carrington longitude             178.571         340.466         144.570
Carrington rotation number      2153.504        2153.054        2152.598

Heliographic (HEEQ) longitude   -161.895           0.000         164.104
Heliographic (HEEQ) latitude      -6.532           5.356          -3.930

HAE longitude                    141.479         303.435         107.528

Earth Ecliptic (HEE) longitude  -161.956          -0.000         164.093
Earth Ecliptic (HEE) latitude      0.077           0.000          -0.119

Roll from ecliptic north          -0.237                          -0.418
Roll from solar north              2.758                           5.758

Light travel time to Earth (min)          16.571          16.332

Separation angle with Earth              161.955         164.092
Separation angle A with B                         33.952


Last Revised: Saturday, 26-Jul-2014 13:01:19 EDT
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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