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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 1-Nov-2014 05:00 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)      1.057086        0.992600        0.962771
Semidiameter (arcsec)            907.805         966.782         996.735

HCI longitude                    159.167         322.947         132.968
HCI latitude                      -2.881           4.383          -5.331

Carrington longitude             329.214         132.994         303.016
Carrington rotation number      2157.086        2156.631        2156.158

Heliographic (HEEQ) longitude   -163.780           0.000         170.021
Heliographic (HEEQ) latitude      -2.881           4.383          -5.331

HAE longitude                    234.745          38.491         208.503

Earth Ecliptic (HEE) longitude  -163.747           0.000         170.012
Earth Ecliptic (HEE) latitude     -0.290           0.000          -0.013

Roll from ecliptic north           0.992                          -0.075
Roll from solar north             -5.783                          -5.011

Light travel time to Earth (min)          16.877          16.202

Separation angle with Earth              163.744         170.012
Separation angle A with B                         26.243


Last Revised: Saturday, 01-Nov-2014 01:01:30 EDT
Responsible NASA Official: [email address: Joseph.B.Gurman<at>nasa<dot>gov]
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