STEREO - Solar Terrestrial Relations Observatory
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Important notice about reduced STEREO science operations

 

Where is STEREO Today?

Positions of STEREO A and B for 2-Oct-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)      1.036485        1.000984        0.965508
Semidiameter (arcsec)            925.848         958.684         993.909

HCI longitude                    131.658         293.091         101.595
HCI latitude                      -5.659           6.676          -7.180

Carrington longitude               7.829         169.262         337.766
Carrington rotation number      2155.978        2155.530        2155.062

Heliographic (HEEQ) longitude   -161.433          -0.000         168.504
Heliographic (HEEQ) latitude      -5.659           6.676          -7.180

HAE longitude                    207.177           8.691         177.269

Earth Ecliptic (HEE) longitude  -161.515          -0.000         168.578
Earth Ecliptic (HEE) latitude     -0.229           0.000          -0.075

Roll from ecliptic north           0.683                          -0.374
Roll from solar north             -4.130                          -1.828

Light travel time to Earth (min)          16.726          16.275

Separation angle with Earth              161.513         168.577
Separation angle A with B                         29.908


Last Revised: Thursday, 02-Oct-2014 00:01:19 EDT
Responsible NASA Official: [e-mail address: gurman<at>gsfc<dot>nasa<dot>gov]
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