STEREO - Solar Terrestrial Relations Observatory
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Important notice about reduced STEREO science operations

 

Where is STEREO Today?

Positions of STEREO A and B for 24-Oct-2014 15:00 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)      1.052050        0.994659        0.963524
Semidiameter (arcsec)            912.151         964.780         995.956

HCI longitude                    152.343         315.385         125.054
HCI latitude                      -3.661           5.106          -5.976

Carrington longitude              69.955         232.997          42.667
Carrington rotation number      2156.806        2156.353        2155.881

Heliographic (HEEQ) longitude   -163.042           0.000         169.669
Heliographic (HEEQ) latitude      -3.661           5.106          -5.976

HAE longitude                    227.888          30.920         200.602

Earth Ecliptic (HEE) longitude  -163.033           0.000         169.681
Earth Ecliptic (HEE) latitude     -0.280           0.000          -0.030

Roll from ecliptic north           0.917                          -0.164
Roll from solar north             -5.502                          -4.322

Light travel time to Earth (min)          16.837          16.221

Separation angle with Earth              163.031         169.681
Separation angle A with B                         27.287


Last Revised: Friday, 24-Oct-2014 11:01:17 EDT
Responsible NASA Official: [e-mail address: gurman<at>gsfc<dot>nasa<dot>gov]
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