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STEREO SCIENCE CENTER

Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 27-Sep-2016 22:00 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)      1.006644        1.002048        0.961946
Semidiameter (arcsec)            953.294         957.667         997.590

HCI longitude                     81.844         289.364         140.877
HCI latitude                      -7.186           6.845          -4.584

Carrington longitude              89.425         296.946         148.458
Carrington rotation number      2181.752        2182.175        2182.588

Heliographic (HEEQ) longitude    152.479           0.000        -148.488
Heliographic (HEEQ) latitude      -7.186           6.845          -4.584

HAE longitude                    157.674           4.987         216.418

Earth Ecliptic (HEE) longitude   152.687           0.000        -148.569
Earth Ecliptic (HEE) latitude     -0.006           0.000           0.005

Roll from ecliptic north          -0.014                          -0.009
Roll from solar north              1.012                          -5.629

Light travel time to Earth (min)          16.235          15.725

Separation angle with Earth              152.687         148.569
Separation angle A with B                         58.744


Last Revised: Tuesday, 27-Sep-2016 22:01:25 GMT
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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