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 15-Aug-2018 12:00 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)      1.018048        1.012816        0.962111
Semidiameter (arcsec)            942.616         947.485         997.419

HCI longitude                    350.874         246.433         138.254
HCI latitude                       1.452           6.654          -4.842

Carrington longitude             339.683         235.242         127.063
Carrington rotation number      2207.056        2207.347        2207.647

Heliographic (HEEQ) longitude    104.441           0.000        -108.179
Heliographic (HEEQ) latitude       1.452           6.654          -4.842

HAE longitude                     66.531         322.367         213.792

Earth Ecliptic (HEE) longitude   104.164          -0.000        -108.576
Earth Ecliptic (HEE) latitude      0.295          -0.000          -0.001

Roll from ecliptic north           0.075                          -0.001
Roll from solar north              7.235                          -5.406

Light travel time to Earth (min)          13.325          13.340

Separation angle with Earth              104.163         108.576
Separation angle A with B                        147.260

Carrington rotation 2207 runs from 2018-08-06 01:31 (DOY 218.06) to
2018-09-02 07:16 (DOY 245.30), as seen from Earth.


Last Revised: Wednesday, 15-Aug-2018 08:01:14 EDT
Responsible NASA Official: [email address: therese.a.kucera<at>nasa<dot>gov]
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