[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 14-Apr-2024 22:00 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)      1.025116        1.003227        0.959128        0.510758        0.377902        0.552816
Semidiameter (arcsec)            936.117         956.541        1000.520        1878.829        2539.358        1735.890

HCI longitude                    113.965         129.565         140.093         230.559         258.998         206.710
HCI latitude                      -6.713          -5.601          -4.660           3.014           5.939          -1.463

Carrington longitude             269.340         284.940         295.468          25.934          54.373           2.085
Carrington rotation number      2283.252        2283.209        2283.179        2282.928        2282.849        2282.994

Heliographic (HEEQ) longitude    -15.600          -0.000          10.529         100.994         129.433          77.145
Heliographic (HEEQ) latitude      -6.713          -5.601          -4.660           3.014           5.939          -1.463

HAE longitude                    189.556         205.105         215.633         306.342         334.821         282.126

Earth Ecliptic (HEE) longitude   -15.549           0.000          10.528         101.237         129.716          77.021
Earth Ecliptic (HEE) latitude     -0.082           0.000           0.005          -2.593          -1.182          -4.709

Roll from ecliptic north          -0.296                          -0.031
Roll from solar north             -3.235                          -5.587

Light travel time to Earth (min)           2.289           1.541                  10.073          10.631           8.578

Separation angle with Earth               15.549          10.528                 101.225         129.706          77.066
Separation angle A with B                         26.077

Carrington rotation 2283 runs from 2024-04-09 05:32 (DOY 100.23) to
2024-05-06 11:35 (DOY 127.48), as seen from Earth.


Last Revised: Sunday, 14-Apr-2024 22:01:06 UTC
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
Accessibility
Privacy Policy and Important Notices
Feedback and comments: webmaster