[an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive]   STEREO

We expect the stereo.gsfc.nasa.gov web site to be decommissioned early in 2026. With a few exceptions for out-of-date material, all resources have been copied to https://stereo-ssc.nascom.nasa.gov/ . Please change any bookmarks or automatic downloads you may have set up.

STEREO - Solar Terrestrial Relations Observatory
[Home] [Contact] [Site Map]


MISSION
Mission
Spacecraft
Launch
Instruments
Where is STEREO?
STEREO 10 Year Anniversary
IN THE NEWS
What's New?
Current Status
SCIENCE
Space Weather
Science Center (Data)
RESOURCES
Latest Images
Galleries
Learning Center
Links

 

Where is STEREO Today?

Positions of STEREO A and B for 25-Nov-2025 16:00 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)      1.004449        0.989631        0.959869        0.508208        0.336415        0.347706
Semidiameter (arcsec)            955.377         969.682         999.748        1888.257        2852.516        2759.881

HCI longitude                     17.425          79.422         132.049         269.073         142.915          62.390
HCI latitude                      -1.998          -7.131          -5.408           3.861         -16.644           0.553

Carrington longitude             242.680         304.677         357.304         134.328           8.170         287.645
Carrington rotation number      2308.326        2308.154        2308.007        2308.627        2307.977        2308.201

Heliographic (HEEQ) longitude    -61.997          -0.000          52.627        -170.349          63.493         -17.032
Heliographic (HEEQ) latitude      -1.998          -7.131          -5.408           3.861         -16.644           0.553

HAE longitude                     93.301         155.271         207.585         344.839         217.206         137.934

Earth Ecliptic (HEE) longitude   -61.970          -0.000          52.314        -170.431          61.935         -17.337
Earth Ecliptic (HEE) latitude      0.186          -0.000          -0.012          -3.391         -12.195           6.976

Roll from ecliptic north           0.099                           0.007
Roll from solar north              7.016                          -4.843

Light travel time to Earth (min)           8.539           7.151                  12.414           7.375           5.568

Separation angle with Earth               61.970          52.314                 169.854          62.622          18.648
Separation angle A with B                        114.284

Carrington rotation 2308 runs from 2026-02-20 01:10 (DOY  51.05) to
2026-03-19 08:57 (DOY  78.37), as seen from Earth.

Last Revised: Tuesday, 25-Nov-2025 11:58:33 EST
Responsible NASA Official: [email address: therese.a.kucera<at>nasa<dot>gov]
Privacy Policy and Important Notices
Accessibility

Webmaster: Apexa Patel