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STEREO SCIENCE CENTER

Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 17-Jul-2018 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)      1.036897        1.016352        0.964889
Semidiameter (arcsec)            925.480         944.188         994.547

HCI longitude                    323.488         218.749         108.101
HCI latitude                       4.591           4.556          -6.960

Carrington longitude               1.872         257.132         146.485
Carrington rotation number      2205.995        2206.286        2206.593

Heliographic (HEEQ) longitude    104.740          -0.000        -110.647
Heliographic (HEEQ) latitude       4.591           4.556          -6.960

HAE longitude                     39.007         294.739         183.729

Earth Ecliptic (HEE) longitude   104.268          -0.000        -111.010
Earth Ecliptic (HEE) latitude      0.262           0.000          -0.064

Roll from ecliptic north           0.068                           0.022
Roll from solar north              5.891                          -2.226

Light travel time to Earth (min)          13.482          13.583

Separation angle with Earth              104.268         111.010
Separation angle A with B                        144.721

Carrington rotation 2206 runs from 2018-07-09 20:25 (DOY 190.85) to
2018-08-06 01:31 (DOY 218.06), as seen from Earth.


Last Revised: Tuesday, 17-Jul-2018 15:01:18 GMT
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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