Test target

Test target

A test target is a common feature on interplanetary landing craft such as the Viking Lander and Mars Exploration Rovers.

The target is usually a visible marker or plate on the exterior of the vehicle within sight of the lander's imaging system (usually a CCD camera). The target possesses samples of primary colors and a grey scale. The camera uses this much like a photographer would use a chip chart on Earth; the color samples allow the camera to compensate for white balance and contrast. The target provides a visual reference as well, so that the initial orientation of the camera can be fixed.

On the Mars Exploration Rover, the target was designed with a pillar elevated above the main surface, so that it could be used as a sundial.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Test target — Тест объект …   Краткий толковый словарь по полиграфии

  • ballistic test target — balistinis bandomasis taikinys statusas T sritis Gynyba apibrėžtis Specialus įtaisas, įrengiamas balistinėje trasoje, sviedinio lėkimo laikui ir padėčiai tam tikrame trajektorijos ruože nustatyti. Sviedinio lėkimo laiką nustato pagal kontaktinius …   Artilerijos terminų žodynas

  • Test-driven development — (TDD ) is a software development technique consisting of short iterations where new test cases covering the desired improvement or new functionality are written first, then the production code necessary to pass the tests is implemented, and… …   Wikipedia

  • TARGET (Bankwesen) — TARGET (Trans European Automated Real time Gross Settlement Express Transfer System) war ein Interbank Überweisungssystem, das 16 nationale Echtzeit Bruttozahlungssysteme in Europa verband und im November 2007 von TARGET2 abgelöst wurde. Das… …   Deutsch Wikipedia

  • TARGET-Feiertag — TARGET (Trans European Automated Real time Gross Settlement Express Transfer System) war ein Interbank Überweisungssystem, das 16 nationale Echtzeit Bruttozahlungssysteme in Europa verband und im November 2007 von TARGET2 abgelöst wurde. Das… …   Deutsch Wikipedia

  • TARGET 3001! — Benutzeroberfläche von TARGET 3001! Basisdaten Entwickler: Ing. Büro Friedrich, Eich …   Deutsch Wikipedia

  • Target Account Selling — (TAS) is a sales process training workshop originally developed in 1988 by Target Marketing Systems, an Atlanta based sales training company, which merged with The Sales Consultancy in 1998, before being acquired by Siebel Systems in 1999, and… …   Wikipedia

  • Target — Tar get, n. [OF. targette, dim. of OF. & F. targe, of Teutonic origin; cf. AS. targe, OD. targie, G. zarge a frame, case, border, OHG. zarga, Icel. targa shield.] 1. A kind of small shield or buckler, used as a defensive weapon in war. [1913… …   The Collaborative International Dictionary of English

  • Target Corporation — This article is about the United States retail company and its stores. For the Australian retail stores, see Target Australia. Target Corporation Type Public company Traded as NYSE:  …   Wikipedia

  • Target (New Zealand TV series) — Infobox Television show name = Target caption = format = Consumer Affairs camera = picture format = 4:3 runtime = 30 minutes (including adverts) creator = developer = executive producer = starring = Jeanette Thomas, Brooke Howard Smith narrated …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”