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STEREO SCIENCE CENTER

Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 30-Apr-2016 08:00 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)      1.057568        1.007439        0.963976
Semidiameter (arcsec)            907.391         952.542         995.489

HCI longitude                    295.681         144.635         344.722
HCI latitude                       6.710          -4.211           1.864

Carrington longitude             279.197         128.151         328.238
Carrington rotation number      2176.224        2176.644        2177.088

Heliographic (HEEQ) longitude    151.047           0.000        -159.913
Heliographic (HEEQ) latitude       6.710          -4.211           1.864

HAE longitude                     11.259         220.183          60.377

Earth Ecliptic (HEE) longitude   151.076           0.000        -159.806
Earth Ecliptic (HEE) latitude      0.168           0.000          -0.054

Roll from ecliptic north           0.307                           0.149
Roll from solar north              3.442                           7.143

Light travel time to Earth (min)          16.631          16.143

Separation angle with Earth              151.075         159.806
Separation angle A with B                         49.119


Last Revised: Saturday, 30-Apr-2016 04:03:39 EDT
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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