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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 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       Parker SP   Solar Orbiter     BepiColombo

Heliocentric distance (AU)      1.010090        0.995601        0.962318        0.413275        0.445636        0.574309
Semidiameter (arcsec)            950.042         963.868         997.205        2322.008        2153.388        1670.927

HCI longitude                     87.782         103.047         112.026         281.049         100.049         156.605
HCI latitude                      -7.242          -7.066          -6.781           3.775          -7.462          -3.267

Carrington longitude             262.589         277.855         286.834          95.857         274.857         331.413
Carrington rotation number      2282.271        2282.228        2282.203        2281.734        2282.237        2282.079

Heliographic (HEEQ) longitude    -15.265           0.000           8.979         178.002          -2.998          53.558
Heliographic (HEEQ) latitude      -7.242          -7.066          -6.781           3.775          -7.462          -3.267

HAE longitude                    163.565         178.712         187.630         356.809         175.729         232.159

Earth Ecliptic (HEE) longitude   -15.147           0.000           8.918         178.098          -2.983          53.448
Earth Ecliptic (HEE) latitude      0.005           0.000          -0.054          -3.342          -0.320          -0.374

Roll from ecliptic north           0.015                           0.342
Roll from solar north              0.295                          -2.371

Light travel time to Earth (min)           2.202           1.296                  11.713           4.583           6.654

Separation angle with Earth               15.147           8.918                 176.155           3.000          53.448
Separation angle A with B                         24.065

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 04:01:06 UTC
Responsible NASA Official: [email address: Therese.A.Kucera<at>nasa<dot>gov]
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