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STEREO SCIENCE CENTER

Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 23-Sep-2018 07:00 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)      1.001772        1.003472        0.958394
Semidiameter (arcsec)            957.930         956.307        1001.287

HCI longitude                     28.938         284.300         178.696
HCI latitude                      -3.293           7.029          -0.083

Carrington longitude             187.510          82.872         337.268
Carrington rotation number      2208.479        2208.770        2209.063

Heliographic (HEEQ) longitude    104.638          -0.000        -105.604
Heliographic (HEEQ) latitude      -3.293           7.029          -0.083

HAE longitude                    104.873         359.956         254.462

Earth Ecliptic (HEE) longitude   104.917           0.000        -105.494
Earth Ecliptic (HEE) latitude      0.232           0.000           0.080

Roll from ecliptic north           0.061                          -0.023
Roll from solar north              6.403                          -7.273

Light travel time to Earth (min)          13.224          12.990

Separation angle with Earth              104.917         105.494
Separation angle A with B                        149.587

Carrington rotation 2208 runs from 2018-09-02 07:16 (DOY 245.30) to
2018-09-29 13:42 (DOY 272.57), as seen from Earth.


Last Revised: Sunday, 23-Sep-2018 07:01:30 GMT
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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