File:ImprovingMartianEllipses.png

Summary

Description
English: Multiple reinforcing advances in engineering and computing have over the decades resulted in the increasingly precise projections of the landings of spacecraft on Mars. The enclosed footprints here are of, respectively, Pathfinder, Phoenix/Insight, Curiosity, and Perseverance.
Date
Source https://mars.nasa.gov/resources/25490/zeroing-in-on-the-target/
Author ESA/DLR/FU-Berlin/NASA/JPL-Caltech

Licensing

Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Federal Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

Category:CC-PD-MarkCategory:PD US Government#ImprovingMartianEllipses.png
Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
Warnings:
Category:PD NASA#ImprovingMartianEllipses.png Category:Mars (planet) Category:Spacecraft Category:Geometry
Category:CC-PD-Mark Category:Geometry Category:Mars (planet) Category:PD NASA Category:PD US Government Category:Spacecraft