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Important notice about STEREO Behind
Positions of STEREO A and B for 22-May-2025 10:00 UT
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) 1.034404 1.012311 0.954435 0.664827 0.800783 0.308834
Semidiameter (arcsec) 927.711 947.958 1005.441 1443.425 1198.362 3107.263
HCI longitude 127.145 165.563 201.471 258.691 346.433 335.111
HCI latitude -5.911 -1.814 2.783 3.794 14.297 3.346
Carrington longitude 333.299 11.717 47.625 104.845 192.587 181.265
Carrington rotation number 2298.074 2297.967 2297.868 2297.709 2298.465 2297.496
Heliographic (HEEQ) longitude -38.418 0.000 35.908 93.128 -179.130 169.548
Heliographic (HEEQ) latitude -5.911 -1.814 2.783 3.794 14.297 3.346
HAE longitude 202.681 241.218 277.408 334.463 60.524 50.669
Earth Ecliptic (HEE) longitude -38.537 0.000 36.190 93.245 179.306 169.451
Earth Ecliptic (HEE) latitude -0.120 0.000 0.113 -3.318 12.494 0.282
Roll from ecliptic north -0.154 -0.153
Roll from solar north -4.525 -6.899
Light travel time to Earth (min) 5.620 5.101 10.331 14.991 10.955
Separation angle with Earth 38.537 36.190 93.239 167.487 169.447
Separation angle A with B 74.727
Carrington rotation 2297 runs from 2025-04-26 01:47 (DOY 116.07) to
2025-05-23 07:15 (DOY 143.30), as seen from Earth.
Last Revised: Thursday, 22-May-2025 06:01:06 EDT
Responsible NASA Official: ![[email address: therese.a.kucera<at>nasa<dot>gov]](/img/kucera_email.jpg)
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