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STEREO SCIENCE CENTER

Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 16-Jan-2019 17:00 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)      1.044564        0.983674        0.959782
Semidiameter (arcsec)            918.687         975.555         999.839

HCI longitude                    142.363          40.019         300.646
HCI latitude                      -4.702          -4.680           6.286

Carrington longitude             103.819           1.475         262.102
Carrington rotation number      2212.712        2212.996        2213.272

Heliographic (HEEQ) longitude    102.344           0.000         -99.373
Heliographic (HEEQ) latitude      -4.702          -4.680           6.286

HAE longitude                    217.880         116.012          16.208

Earth Ecliptic (HEE) longitude   101.868          -0.000         -99.804
Earth Ecliptic (HEE) latitude     -0.259           0.000           0.039

Roll from ecliptic north          -0.056                          -0.004
Roll from solar north             -5.793                           3.685

Light travel time to Earth (min)          13.102          12.365

Separation angle with Earth              101.868          99.804
Separation angle A with B                        158.327

Carrington rotation 2212 runs from 2018-12-20 11:39 (DOY 354.49) to
2019-01-16 19:41 (DOY  16.82), as seen from Earth.


Last Revised: Wednesday, 16-Jan-2019 17:01:02 GMT
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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