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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 23-Oct-2014 13:00 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)      1.051315        0.994957        0.963629
Semidiameter (arcsec)            912.788         964.492         995.848

HCI longitude                    151.362         314.305         123.923
HCI latitude                      -3.769           5.202          -6.059

Carrington longitude              84.341         247.284          56.902
Carrington rotation number      2156.766        2156.313        2155.842

Heliographic (HEEQ) longitude   -162.944          -0.000         169.618
Heliographic (HEEQ) latitude      -3.769           5.202          -6.059

HAE longitude                    226.903          29.841         199.474

Earth Ecliptic (HEE) longitude  -162.939           0.000         169.633
Earth Ecliptic (HEE) latitude     -0.279          -0.000          -0.032

Roll from ecliptic north           0.906                          -0.176
Roll from solar north             -5.454                          -4.216

Light travel time to Earth (min)          16.831          16.224

Separation angle with Earth              162.936         169.633
Separation angle A with B                         27.430


Last Revised: Thursday, 23-Oct-2014 09:01:19 EDT
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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