[Site Map] [Contact] [Home]
STEREO SCIENCE CENTER

Important notice about the STEREO redirects

New procedure for updating SolarSoft

Read-only problem while updating SolarSoft with WGET

Information about STEREO-A close approach to Earth, August 2023

 

Where is STEREO Today?

Positions of STEREO A and B for 25-May-2024 20:00 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       Parker SP   Solar Orbiter     BepiColombo

Heliocentric distance (AU)      1.052681        1.012964        0.955346        0.718045        0.825648        0.311290
Semidiameter (arcsec)            911.603         947.347        1004.482        1336.445        1162.273        3082.742

HCI longitude                    152.124         169.071         182.992         258.377         339.548          11.176
HCI latitude                      -3.578          -1.379           0.474           3.788           6.286           2.284

Carrington longitude              87.120         104.068         117.989         193.374         274.545         306.173
Carrington rotation number      2284.758        2284.711        2284.672        2284.463        2284.237        2285.150

Heliographic (HEEQ) longitude    -16.948          -0.000          13.921          89.306         170.477        -157.895
Heliographic (HEEQ) latitude      -3.578          -1.379           0.474           3.788           6.286           2.284

HAE longitude                    227.680         244.752         258.794         334.149          54.720          86.572

Earth Ecliptic (HEE) longitude   -17.072          -0.000          14.042          89.398         169.968        -158.180
Earth Ecliptic (HEE) latitude     -0.175           0.000           0.089          -3.316           3.717           3.672

Roll from ecliptic north          -0.570                          -0.357
Roll from solar north             -6.977                          -7.599

Light travel time to Earth (min)           2.571           2.057                  10.276          15.226          10.868

Separation angle with Earth               17.073          14.042                  89.399         169.308         157.888
Separation angle A with B                         31.115

Carrington rotation 2284 runs from 2024-05-06 11:35 (DOY 127.48) to
2024-06-02 16:44 (DOY 154.70), as seen from Earth.


Last Revised: Saturday, 25-May-2024 20:01:05 UTC
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
Accessibility
Privacy Policy and Important Notices
Feedback and comments: webmaster