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STEREO SCIENCE CENTER

Important notice about reduced STEREO science operations

 

Where is STEREO Today?

Positions of STEREO A and B for 5-Mar-2015 18:00 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)      1.075679        0.991813        0.957060
Semidiameter (arcsec)            892.113         967.549        1002.683

HCI longitude                    266.668          88.854         263.818
HCI latitude                       7.271          -7.251           7.312

Carrington longitude             110.167         292.352         107.317
Carrington rotation number      2160.694        2161.188        2160.702

Heliographic (HEEQ) longitude    177.815          -0.000         174.965
Heliographic (HEEQ) latitude       7.271          -7.251           7.312

HAE longitude                    342.461         164.629         339.635

Earth Ecliptic (HEE) longitude   177.832          -0.000         175.006
Earth Ecliptic (HEE) latitude      0.031           0.000           0.102

Roll from ecliptic north        -179.185                           1.165
Roll from solar north           -179.605                           0.386

Light travel time to Earth (min)          17.193          16.194

Separation angle with Earth              177.832         175.005
Separation angle A with B                          2.827


Last Revised: Thursday, 05-Mar-2015 13:01:46 EST
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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