STEREO - Solar Terrestrial Relations Observatory
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Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 29-Aug-2016 00:00 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)      0.999919        1.009910        0.964852
Semidiameter (arcsec)            959.705         950.211         994.585

HCI longitude                     51.684         260.016         109.646
HCI latitude                      -5.564           7.144          -6.894

Carrington longitude             123.615         331.948         181.577
Carrington rotation number      2180.657        2181.078        2181.496

Heliographic (HEEQ) longitude    151.668           0.000        -150.370
Heliographic (HEEQ) latitude      -5.564           7.144          -6.894

HAE longitude                    127.662         335.860         185.264

Earth Ecliptic (HEE) longitude   151.802          -0.000        -150.596
Earth Ecliptic (HEE) latitude      0.139           0.000          -0.061

Roll from ecliptic north           0.257                           0.105
Roll from solar north              4.746                          -2.327

Light travel time to Earth (min)          16.213          15.887

Separation angle with Earth              151.802         150.596
Separation angle A with B                         57.601


Last Revised: Sunday, 28-Aug-2016 20:01:17 EDT
Responsible NASA Official: [e-mail address: gurman<at>gsfc<dot>nasa<dot>gov]
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