STEREO - Solar Terrestrial Relations Observatory
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Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 19-Feb-2019 10:00 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)      1.066458        0.988461        0.963154
Semidiameter (arcsec)            899.827         970.830         996.339

HCI longitude                    172.622          74.317         335.857
HCI latitude                      -1.231          -6.986           2.940

Carrington longitude              15.946         277.640         179.180
Carrington rotation number      2213.956        2214.229        2214.502

Heliographic (HEEQ) longitude     98.305          -0.000         -98.460
Heliographic (HEEQ) latitude      -1.231          -6.986           2.940

HAE longitude                    248.292         150.202          51.455

Earth Ecliptic (HEE) longitude    98.090          -0.000         -98.747
Earth Ecliptic (HEE) latitude     -0.295           0.000          -0.037

Roll from ecliptic north          -0.043                           0.007
Roll from solar north             -7.234                           6.622

Light travel time to Earth (min)          12.915          12.320

Separation angle with Earth               98.090          98.747
Separation angle A with B                        163.160

Carrington rotation 2214 runs from 2019-02-13 03:53 (DOY  44.16) to
2019-03-12 11:50 (DOY  71.49), as seen from Earth.


Last Revised: Tuesday, 19-Feb-2019 05:01:08 EST
Responsible NASA Official: [email address: therese.a.kucera<at>nasa<dot>gov]
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