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STEREO SCIENCE CENTER

Important notice about reduced STEREO science operations

 

Where is STEREO Today?

Positions of STEREO A and B for 2-Sep-2014 01:00 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)      1.016965        1.009066        0.967171
Semidiameter (arcsec)            943.619         951.006         992.200

HCI longitude                    102.754         263.489          70.176
HCI latitude                      -7.185           7.206          -6.943

Carrington longitude              46.230         206.965          13.652
Carrington rotation number      2154.872        2154.425        2153.962

Heliographic (HEEQ) longitude   -160.735          -0.000         166.687
Heliographic (HEEQ) latitude      -7.185           7.206          -6.943

HAE longitude                    178.418         339.307         146.093

Earth Ecliptic (HEE) longitude  -160.888          -0.000         166.787
Earth Ecliptic (HEE) latitude     -0.110          -0.000          -0.116

Roll from ecliptic north           0.317                          -0.495
Roll from solar north             -1.280                           1.959

Light travel time to Earth (min)          16.617          16.328

Separation angle with Earth              160.888         166.786
Separation angle A with B                         32.325


Last Revised: Monday, 01-Sep-2014 21:01:20 EDT
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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