This file is from Wikimedia Commons and may be used by other projects.
The description on its file description page there is shown below.
Summary
DescriptionAkatsuki orbit.jpg
English: Spacecraft orbit about Venus seen from the north (upper) and from the equatorial plane (lower). Spacecraft positions at every 1 hour are indicated by crosses. The region where the angular diameter of the Venus disk as seen from the spacecraft is smaller than typical camera FOV of 12° and the region where the North pole is visible from the spacecraft are indicated by shades. The limb height seen from the spacecraft is assumed to be 80 km.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the licence, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue
Captions
Add a one-line explanation of what this file represents
Spacecraft orbit about Venus seen from the north (upper) and from the equatorial plane (lower)
Uploaded a work by Nakamura, M., Imamura, T., Ishii, N. et al. from https://earth-planets-space.springeropen.com/articles/10.5047/eps.2011.02.009 with UploadWizard