Science Center - Where is STEREO?
Positions of STEREO A and B for 2025-07-11T15:29 UT

STEREO-B Earth STEREO-A
Heliocentric distance (AU) 1.066876 1.016522 0.955836
Semidiameter (arcsec) 899.474 944.031 1003.967
HCI longitude 172.709 213.254 254.760
HCI latitude -1.119 3.995 7.112
Carrington longitude 26.402 66.948 108.453
Carrington rotation number 2299.927 2299.814 2299.699
Heliographic (HEEQ) longitude -40.546 0.000 41.506
Heliographic (HEEQ) latitude -1.119 3.995 7.112
HAE longitude 248.392 289.232 330.646
Earth Ecliptic (HEE) longitude -40.840 -0.000 41.414
Earth Ecliptic (HEE) latitude -0.195 0.000 0.111
Roll from ecliptic north -0.227 -0.123
Roll from solar north -7.420 -2.024
Light travel time to Earth (min) 6.059 5.820
Separation angle with Earth 40.840 41.414
Separation angle A with B 82.254
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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