Science Center - Where is STEREO?
Positions of STEREO A and B for 2025-04-22T17:29 UT

STEREO-B Earth STEREO-A
Heliocentric distance (AU) 1.015783 1.005327 0.956070
Semidiameter (arcsec) 944.717 954.543 1003.721
HCI longitude 98.558 136.944 170.270
HCI latitude -7.204 -4.963 -1.161
Carrington longitude 5.821 44.207 77.533
Carrington rotation number 2296.984 2296.877 2296.785
Heliographic (HEEQ) longitude -38.386 -0.000 33.326
Heliographic (HEEQ) latitude -7.204 -4.963 -1.161
HAE longitude 174.255 212.480 245.968
Earth Ecliptic (HEE) longitude -38.225 -0.000 33.488
Earth Ecliptic (HEE) latitude -0.032 -0.000 0.067
Roll from ecliptic north -0.044 -0.103
Roll from solar north -1.120 -7.250
Light travel time to Earth (min) 5.505 4.716
Separation angle with Earth 38.225 33.488
Separation angle A with B 71.712
Carrington rotation 2296 runs from 2025-03-29 19:19 (DOY 88.80) to
2025-04-26 01:47 (DOY 116.07), as seen from Earth.
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