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 16-Jul-2018 08:00 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)      1.037796        1.016431        0.964999
Semidiameter (arcsec)            924.679         944.115         994.434

HCI longitude                    322.283         217.518         106.751
HCI latitude                       4.710           4.433          -7.013

Carrington longitude              18.988         274.223         163.456
Carrington rotation number      2205.947        2206.238        2206.546

Heliographic (HEEQ) longitude    104.765           0.000        -110.767
Heliographic (HEEQ) latitude       4.710           4.433          -7.013

HAE longitude                     37.800         293.507         182.388

Earth Ecliptic (HEE) longitude   104.293           0.000        -111.119
Earth Ecliptic (HEE) latitude      0.259          -0.000          -0.066

Roll from ecliptic north           0.068                           0.023
Roll from solar north              5.798                          -2.062

Light travel time to Earth (min)          13.491          13.594

Separation angle with Earth              104.293         111.119
Separation angle A with B                        144.588

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: Monday, 16-Jul-2018 04:01:13 EDT
Responsible NASA Official: [email address: therese.a.kucera<at>nasa<dot>gov]
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