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 31-Oct-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)      1.056679        0.992766        0.962834
Semidiameter (arcsec)            908.155         966.620         996.670

HCI longitude                    158.607         322.323         132.316
HCI latitude                      -2.947           4.446          -5.388

Carrington longitude             337.520         141.236         311.229
Carrington rotation number      2157.062        2156.608        2156.135

Heliographic (HEEQ) longitude   -163.716          -0.000         169.993
Heliographic (HEEQ) latitude      -2.947           4.446          -5.388

HAE longitude                    234.182          37.866         207.852

Earth Ecliptic (HEE) longitude  -163.684           0.000         169.985
Earth Ecliptic (HEE) latitude     -0.289           0.000          -0.014

Roll from ecliptic north           0.986                          -0.082
Roll from solar north             -5.764                          -4.957

Light travel time to Earth (min)          16.873          16.203

Separation angle with Earth              163.682         169.985
Separation angle A with B                         26.332


Last Revised: Friday, 31-Oct-2014 10:01:28 EDT
Responsible NASA Official: [e-mail address: gurman<at>gsfc<dot>nasa<dot>gov]
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