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STEREO SCIENCE CENTER

Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 23-Jul-2018 02:00 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)      1.033124        1.015931        0.964407
Semidiameter (arcsec)            928.860         944.580         995.044

HCI longitude                    328.600         223.953         113.805
HCI latitude                       4.066           5.049          -6.693

Carrington longitude             289.560         184.913          74.765
Carrington rotation number      2206.196        2206.486        2206.792

Heliographic (HEEQ) longitude    104.647          -0.000        -110.148
Heliographic (HEEQ) latitude       4.066           5.049          -6.693

HAE longitude                     44.132         299.949         189.399

Earth Ecliptic (HEE) longitude   104.183          -0.000        -110.550
Earth Ecliptic (HEE) latitude      0.273          -0.000          -0.053

Roll from ecliptic north           0.071                           0.017
Roll from solar north              6.256                          -2.903

Light travel time to Earth (min)          13.447          13.540

Separation angle with Earth              104.183         110.550
Separation angle A with B                        145.267

Carrington rotation 2206 runs from 2018-07-09 20:25 (DOY 190.85) to
2018-08-06 01:31 (DOY 218.06), as seen from Earth.


Last Revised: Monday, 23-Jul-2018 02:01:15 GMT
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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