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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-Aug-2014 04:00 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)      1.003284        1.014866        0.967268
Semidiameter (arcsec)            956.487         945.570         992.101

HCI longitude                     72.044         233.626          38.200
HCI latitude                      -6.859           5.851          -4.624

Carrington longitude              93.463         255.045          59.618
Carrington rotation number      2153.740        2153.292        2152.834

Heliographic (HEEQ) longitude   -161.582          -0.000         164.573
Heliographic (HEEQ) latitude      -6.859           5.851          -4.624

HAE longitude                    147.943         309.612         114.202

Earth Ecliptic (HEE) longitude  -161.669          -0.000         164.590
Earth Ecliptic (HEE) latitude      0.044          -0.000          -0.122

Roll from ecliptic north          -0.135                          -0.445
Roll from solar north              2.096                           5.248

Light travel time to Earth (min)          16.571          16.337

Separation angle with Earth              161.669         164.589
Separation angle A with B                         33.742


Last Revised: Saturday, 02-Aug-2014 00:01:18 EDT
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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