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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 29-Jan-2015 06:00 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)      1.085568        0.984898        0.956267
Semidiameter (arcsec)            883.987         974.342        1003.515

HCI longitude                    235.975          52.803         226.119
HCI latitude                       5.898          -5.789           5.367

Carrington longitude             223.019          39.848         213.164
Carrington rotation number      2160.381        2159.889        2159.408

Heliographic (HEEQ) longitude   -176.828           0.000         173.316
Heliographic (HEEQ) latitude       5.898          -5.789           5.367

HAE longitude                    311.945         128.790         302.125

Earth Ecliptic (HEE) longitude  -176.845           0.000         173.335
Earth Ecliptic (HEE) latitude     -0.123           0.000           0.125

Roll from ecliptic north           2.227                           1.070
Roll from solar north             -1.823                          -3.950

Light travel time to Earth (min)          17.214          16.118

Separation angle with Earth              176.843         173.334
Separation angle A with B                          9.823


Last Revised: Thursday, 29-Jan-2015 01:01:29 EST
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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