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Information about STEREO-A close approach to Earth, August 2023

 

Where is STEREO Today?

Positions of STEREO A and B for 19-Mar-2024 10:00 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       Parker SP   Solar Orbiter     BepiColombo

Heliocentric distance (AU)      1.010206        0.995669        0.962288        0.407541        0.442227        0.574984
Semidiameter (arcsec)            949.933         963.802         997.235        2354.676        2169.989        1668.965

HCI longitude                     88.030         103.297         112.288         281.511         100.892         157.081
HCI latitude                      -7.244          -7.059          -6.768           3.769          -7.503          -3.260

Carrington longitude             259.292         274.559         283.550          92.772         272.154         328.343
Carrington rotation number      2282.280        2282.237        2282.212        2281.742        2282.244        2282.088

Heliographic (HEEQ) longitude    -15.267          -0.000           8.991         178.214          -2.405          53.784
Heliographic (HEEQ) latitude      -7.244          -7.059          -6.768           3.769          -7.503          -3.260

HAE longitude                    163.811         178.960         187.891         357.271         176.564         232.632

Earth Ecliptic (HEE) longitude   -15.149          -0.000           8.930         178.311          -2.397          53.672
Earth Ecliptic (HEE) latitude      0.004           0.000          -0.054          -3.337          -0.381          -0.422

Roll from ecliptic north           0.012                           0.338
Roll from solar north              0.261                          -2.406

Light travel time to Earth (min)           2.202           1.298                  11.666           4.609           6.673

Separation angle with Earth               15.149           8.930                 176.260           2.427          53.673
Separation angle A with B                         24.079

Carrington rotation 2282 runs from 2024-03-12 22:25 (DOY  72.93) to
2024-04-09 05:32 (DOY 100.23), as seen from Earth.


Last Revised: Tuesday, 19-Mar-2024 10:01:06 UTC
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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