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Items tagged with: maps

#map #MAPS #mapporn

#map #MAPS #mapporn

#map #MAPS #mapporn

Eine `Map` ist eine Datenstruktur für Zuordnungen. Du speicherst einen Wert unter einem Schlüssel und holst ihn später über genau diesen Schlüssel wieder heraus. Das klingt simpel, ist aber in der Praxis einer der wichtigste...

magicmarcy.de/schluss-mit-such…

#Schlüssel #Java #HashMap #Code #Coding #Entry #Maps #Reihenfolge #EntrySet #GetOrDefault #TreeMap #KeySet #Elemente #Merge #Enum #LinkedHashMap #EnumMap #Values #Programming

Schluss mit Suchen in Listen: So verwendest du Maps in Java sinnvoll | magicmarcy.de

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#programming #java #MAPS #code #values #coding #merge #treemap #Reihenfolge #entry #schlussel #Elemente #hashmap #entryset #getordefault #keyset #enum #linkedhashmap #enummap

#map #MAPS #mapporn

#map #MAPS #mapporn

#map #MAPS #mapporn

#map #MAPS #mapporn

#map #MAPS #mapporn

#map #MAPS #mapporn

#map #MAPS #mapporn

#map #MAPS #mapporn

#map #MAPS #mapporn

#map #MAPS #mapporn

Mars Global Surveyor only got 5 high resolution images, all of similar areas so not very wide coverage. It also took low resolution views of Phobos and Deimos (one each). This map shows the coverage of Phobos. Sunlit areas are outlined, and the much larger area seen by reflected light is also shown. It took a ridiculous amount of time to make that map. A strip of test data from the MOLA laser altimeter is also shown here.
#maps #mars #phobos #deimos
A map of Phobos in 2 hemispheres shows coverage by Mars Global Surveyor images. The high resolution sunlit coverage is quite limited, but reflected light shows a lot more territory at low resolution (with a lot of noise and artifacts). A test strip of MOLA data is also shown - that was the laser altimeter which went on to produce a spectacular dataset for Mars itself.
#Mars #MAPS #phobos #deimos

Here are higher resolution maps of the Aladdin sites. Note that the middle map shows that the trailing side sample point was moved from a complex area to a nice smooth area in 1999. The Deimos high albedo site is a small bright patch in the middle of the circle. I am now thinking that I should make a map of Phobos showing all of these suggested sites - we will be seeing more - before MMX gets busy.

Our next mission will be an orbiter.
#maps #mars #phobos #deimos

Three maps - two of Phobos and one of Deimos, just showing small areas of each moon - illustrate the Aladdin sampling sites in more detail than the previous posts.
#Mars #MAPS #phobos #deimos

Aladdin would look at Deimos as well - and sample it. Here is a map of Deimos - again it uses my morphographic projection which shows you the shape of the body as well as where surface features are. The shape in this case is the convex hull, which reduces distortions where large concavities are present. The white strip would be covered by high resolution data (images, composition etc.), and there are 2 sample sites, in light and dark areas.
#maps #mars #phobos #deimos
A map of Deimos in two hemispheres, showing the surface as a photomosaic which I compiled earlier, mostly using Viking images. A white strip running along a ridge between two smooth areas would be seen at high resolution, and two sampling points are shown in it, a light area and a dark area.
#Mars #MAPS #phobos #deimos

This map refers back to Phobos 2 by showing the location of the red-blue boundary on the anti-Mars side of the moon (the corresponding boundary opposite it was not observed). Also shown are two potential sampling areas (one on the red side, one on the blue side) for a very interesting mission proposal: Aladdin. This mission, which of course did not fly, would put a spacecraft into an orbit which made multiple close approaches by both Phobos and Deimos.
#maps #mars #phobos #deimos
A map of Phobos in two opposite hemispheres showing the red-blue colour boundary observed by Phobos 2. Also shown are two elongated east-west strips of the surface, one on each side of the colour boundary. These would be observed at very high resolution by a spacecraft called Aladdin. White dots in each strip would be sampled by firing a projectile into the surface and collecting debris ejected by the impact during a very low altitude flyby.
#Mars #MAPS #phobos #deimos

Here are the estimated areas covered by Pathfinder data. The lander is on Mars so it only sees the Mars-facing side of each moon. Phobos 2 saw the opposite side. We know enough to say that Pathfinder saw a mix of red and blue areas in the unresolved image, which doesn't help much. Deimos spectra were weaker but seemed to suggest that it was more like mafic rocks (ejecta from Mars) than C-type asteroids. Both types of material have been suggested...
#maps #mars #phobos #deimos
Maps of Phobos (top) and Deimos (bottom) primarily based on Viking data, showing areas on the surface covered by multispectral data from Mars Pathfinder. Each map consists of two images, the leading and trailing sides of each moon (leading on the left). Pathfinder could only see the surface facing Mars, centred on the zero meridian. The longitude ranges visible are based on the shape model of each moon.
#Mars #MAPS #phobos #deimos

This paper describes the colour dichotomy on Phobos:

Murchie et al., 1999. Mars Pathfinder spectral measurements of Phobos and Deimos: Comparison with previous data. JGR Planets, v. 104(E4), pp.9069-9079. agupubs.onlinelibrary.wiley.co…

This map is from that paper. The boundary between red and blue materials is diffuse and irregular but is sketched on with a curving dashed line. Is the blue Stickney ejecta?
#maps #mars #phobos #deimos

A map of Phobos showing colour variations on its surface. In reality these would be very faint and they include infrared data which we can't see anyway, so you would not see this if you were there. The map (top) is a cylindrical projection of Viking images with colour data from Phobos 2 added. Below the map are two images from Phobos 2 showing the colour variations. Blue and greenish hues occupy much of the leading side of Phobos (facing forwards along its orbit). Redder material occupies essentially all of the trailing side (facing backwards along the orbit)' The blue seems more intense around the large crater Stickney.
#Mars #MAPS #phobos #deimos

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