STEREO - Solar Terrestrial Relations Observatory
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Important notice about reduced STEREO science operations

 

Where is STEREO Today?

Positions of STEREO A and B for 24-Nov-2014 14:00 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)      1.070884        0.987325        0.960397
Semidiameter (arcsec)            896.108         971.947         999.199

HCI longitude                    179.774         346.342         157.333
HCI latitude                      -0.321           1.719          -2.766

Carrington longitude              18.261         184.829         355.820
Carrington rotation number      2157.949        2157.487        2157.012

Heliographic (HEEQ) longitude   -166.569          -0.000         170.991
Heliographic (HEEQ) latitude      -0.321           1.719          -2.766

HAE longitude                    255.501          62.002         232.940

Earth Ecliptic (HEE) longitude  -166.502           0.000         170.937
Earth Ecliptic (HEE) latitude     -0.292           0.000           0.039

Roll from ecliptic north           1.217                           0.245
Roll from solar north             -6.035                          -6.444

Light travel time to Earth (min)          17.000          16.149

Separation angle with Earth              166.499         170.937
Separation angle A with B                         22.564


Last Revised: Monday, 24-Nov-2014 09:01:34 EST
Responsible NASA Official: [e-mail address: gurman<at>gsfc<dot>nasa<dot>gov]
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