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STEREO SCIENCE CENTER

Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 18-Mar-2019 18:00 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)      1.079417        0.995274        0.965575
Semidiameter (arcsec)            889.024         964.185         993.841

HCI longitude                    196.292         101.916           4.050
HCI latitude                       1.779          -7.097          -0.607

Carrington longitude              11.909         277.533         179.667
Carrington rotation number      2214.967        2215.229        2215.501

Heliographic (HEEQ) longitude     94.376          -0.000         -97.866
Heliographic (HEEQ) latitude       1.779          -7.097          -0.607

HAE longitude                    272.150         177.589          79.860

Earth Ecliptic (HEE) longitude    94.561           0.000         -97.730
Earth Ecliptic (HEE) latitude     -0.266           0.000          -0.089

Roll from ecliptic north          -0.021                           0.012
Roll from solar north             -6.980                           7.246

Light travel time to Earth (min)          12.686          12.284

Separation angle with Earth               94.561          97.730
Separation angle A with B                        167.705

Carrington rotation 2215 runs from 2019-03-12 11:50 (DOY  71.49) to
2019-04-08 18:59 (DOY  98.79), as seen from Earth.


Last Revised: Monday, 18-Mar-2019 18:01:02 GMT
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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