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STEREO SCIENCE CENTER

Important notice about STEREO Behind

 

Where is STEREO Today?

Positions of STEREO A and B for 19-Apr-2019 03:00 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)      1.086045        1.004184        0.967204
Semidiameter (arcsec)            883.598         955.629         992.167

HCI longitude                    223.047         132.987          36.325
HCI latitude                       4.786          -5.317          -4.436

Carrington longitude             313.628         223.568         126.907
Carrington rotation number      2216.129        2216.379        2216.647

Heliographic (HEEQ) longitude     90.060          -0.000         -96.662
Heliographic (HEEQ) latitude       4.786          -5.317          -4.436

HAE longitude                    299.026         208.523         112.324

Earth Ecliptic (HEE) longitude    90.502          -0.000         -96.200
Earth Ecliptic (HEE) latitude     -0.180           0.000          -0.122

Roll from ecliptic north          -0.000                           0.012
Roll from solar north             -5.293                           5.849

Light travel time to Earth (min)          12.356          12.206

Separation angle with Earth               90.502          96.200
Separation angle A with B                        173.291

Carrington rotation 2216 runs from 2019-04-08 18:59 (DOY  98.79) to
2019-05-06 01:04 (DOY 126.04), as seen from Earth.


Last Revised: Friday, 19-Apr-2019 03:01:04 GMT
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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