Image Details
Caption: Figure 2.
Overview of PSP position and the FOV of WISPR and HI-1 at four times (indicated at the top of each panel). The plane represented is the solar equator with coordinates in solar radii. We adopt here the Stonyhurst coordinates, which correspond to Heliocentric Earth Equatorial (HEEQ) converted to latitudes and longitudes. The blue dot represents PSP position at the time indicated in each panel. PSP orbit from 2021 November 19 00:00 UT to 2021 November 25 00:00 UT is represented by the dashed brown line. The red line and green lines indicate the direction toward STEREO-A and Earth, respectively. The blue and purple lines indicate the FOV limits of WISPR (inner and outer) and HI-1, respectively. An animation is available. Each frame is similar to a panel shown here but corresponds to a different time ranging from 2021 November 19 00:00 UT to 2021 November 25 00:00 UT. The real-time duration of the movie is 6 s.
(An animation of this figure is available in the online article.)
(An animation of this figure is available.)
The video/animation of this figure is available in the online journal.
© 2026. The Author(s). Published by the American Astronomical Society.