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STEREO SCIENCE CENTER

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Where is STEREO Today?

Positions of STEREO A and B for 24-Jun-2019 09:00 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)      1.067957        1.016420        0.965090
Semidiameter (arcsec)            898.564         944.125         994.340

HCI longitude                    280.425         196.434         105.191
HCI latitude                       7.232           2.064          -7.069

Carrington longitude             151.289          67.299         336.056
Carrington rotation number      2218.580        2218.813        2219.067

Heliographic (HEEQ) longitude     83.991           0.000         -91.243
Heliographic (HEEQ) latitude       7.232           2.064          -7.069

HAE longitude                    356.106         272.325         180.838

Earth Ecliptic (HEE) longitude    83.781           0.000         -91.487
Earth Ecliptic (HEE) latitude      0.099           0.000          -0.069

Roll from ecliptic north          -0.008                          -0.001
Roll from solar north              1.301                          -1.896

Light travel time to Earth (min)          11.580          11.808

Separation angle with Earth               83.781          91.487
Separation angle A with B                        175.268

Carrington rotation 2218 runs from 2019-06-02 06:15 (DOY 153.26) to
2019-06-29 11:01 (DOY 180.46), as seen from Earth.


Last Revised: Monday, 24-Jun-2019 09:01:05 GMT
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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