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STEREO SCIENCE CENTER

Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 26-Sep-2018 03:00 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)      1.001192        1.002674        0.958169
Semidiameter (arcsec)            958.485         957.069        1001.522

HCI longitude                     31.766         287.093         181.654
HCI latitude                      -3.611           6.934           0.299

Carrington longitude             150.149          45.476         300.037
Carrington rotation number      2208.583        2208.874        2209.167

Heliographic (HEEQ) longitude    104.673           0.000        -105.439
Heliographic (HEEQ) latitude      -3.611           6.934           0.299

HAE longitude                    107.714           2.730         257.444

Earth Ecliptic (HEE) longitude   104.984          -0.000        -105.286
Earth Ecliptic (HEE) latitude      0.222           0.000           0.085

Roll from ecliptic north           0.059                          -0.024
Roll from solar north              6.220                          -7.272

Light travel time to Earth (min)          13.221          12.965

Separation angle with Earth              104.984         105.286
Separation angle A with B                        149.728

Carrington rotation 2208 runs from 2018-09-02 07:16 (DOY 245.30) to
2018-09-29 13:42 (DOY 272.57), as seen from Earth.


Last Revised: Wednesday, 26-Sep-2018 03:01:25 GMT
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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