Science Center - Where is STEREO?
Positions of STEREO A and B for 2025-07-10T00:28 UT

STEREO-B Earth STEREO-A
Heliocentric distance (AU) 1.065980 1.016565 0.955713
Semidiameter (arcsec) 900.231 943.990 1004.096
HCI longitude 171.282 211.710 253.028
HCI latitude -1.298 3.830 7.054
Carrington longitude 48.035 88.463 129.781
Carrington rotation number 2299.867 2299.754 2299.639
Heliographic (HEEQ) longitude -40.427 -0.000 41.319
Heliographic (HEEQ) latitude -1.298 3.830 7.054
HAE longitude 246.955 287.682 328.926
Earth Ecliptic (HEE) longitude -40.727 -0.000 41.244
Earth Ecliptic (HEE) latitude -0.195 0.000 0.113
Roll from ecliptic north -0.227 -0.125
Roll from solar north -7.395 -2.237
Light travel time to Earth (min) 6.040 5.797
Separation angle with Earth 40.728 41.245
Separation angle A with B 81.972
Carrington rotation 2299 runs from 2025-06-19 12:06 (DOY 170.50) to
2025-07-16 16:54 (DOY 197.70), as seen from Earth.
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