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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 2-Sep-2015 23:00 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)      1.005885        1.008888        0.966142
Semidiameter (arcsec)            954.013         951.174         993.257

HCI longitude                     79.853         264.127          92.432
HCI latitude                      -7.136           7.215          -7.336

Carrington longitude             233.020          57.294         245.599
Carrington rotation number      2167.353        2167.841        2168.318

Heliographic (HEEQ) longitude    175.725          -0.000        -171.696
Heliographic (HEEQ) latitude      -7.136           7.215          -7.336

HAE longitude                    155.698         339.940         168.178

Earth Ecliptic (HEE) longitude   175.758          -0.000        -171.762
Earth Ecliptic (HEE) latitude      0.004          -0.000          -0.090

Roll from ecliptic north           0.055                           0.620
Roll from solar north              1.329                           0.313

Light travel time to Earth (min)          16.746          16.384

Separation angle with Earth              175.758         171.762
Separation angle A with B                         12.480


Last Revised: Wednesday, 02-Sep-2015 19:01:54 EDT
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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