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STEREO SCIENCE CENTER

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Where is STEREO Today?

Positions of STEREO A and B for 19-Jul-2019 06:00 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)      1.052451        1.016260        0.962775
Semidiameter (arcsec)            911.802         944.274         996.731

HCI longitude                    302.810         220.053         131.176
HCI latitude                       6.301           4.683          -5.486

Carrington longitude             180.838          98.081           9.204
Carrington rotation number      2219.498        2219.728        2219.974

Heliographic (HEEQ) longitude     82.757           0.000         -88.877
Heliographic (HEEQ) latitude       6.301           4.683          -5.486

HAE longitude                     18.353         296.046         206.713

Earth Ecliptic (HEE) longitude    82.307           0.000         -89.333
Earth Ecliptic (HEE) latitude      0.197          -0.000          -0.017

Roll from ecliptic north          -0.024                          -0.003
Roll from solar north              3.898                          -4.770

Light travel time to Earth (min)          11.325          11.575

Separation angle with Earth               82.307          89.333
Separation angle A with B                        171.638

Carrington rotation 2219 runs from 2019-06-29 11:01 (DOY 180.46) to
2019-07-26 15:55 (DOY 207.66), as seen from Earth.


Last Revised: Friday, 19-Jul-2019 06:01:03 GMT
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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