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PHOE-SOL003-lg_609-1.jpgPhoenix and the Landscape in True Colors! - Sol 3 (Superdefinition + MULTISPECTRUM; credits: Dr Marco Faccin & Lunexit)76 visiteQuesta immagine? Un capolavoro! (altro che gli "Approximate Colors" della NASA....)MareKromiumMag 28, 2008
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PHOE-SOL002-lg_542-543-2.jpgLandscape... Sol 2 (Natural Colors; credits: Dr G. Barca)67 visitenessun commentoMareKromiumMag 28, 2008
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PHOE-SOL002-lg_542-543-3.jpgLandscape... Sol 2 (Natural Colors + MULTISPECTRUM; credits: Dr G. Barca & Lunexit)68 visitenessun commentoMareKromiumMag 28, 2008
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PHOE-SOL003-lg_532-533-534.jpgPhoenix in True Colors! - Sol 3 (credits: Dr Gianluigi Barca)72 visitenessun commentoMareKromiumMag 28, 2008
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PHOE-SOL000-PSP_008579_9020.jpgThe Descent of Phoenix, from MRO - Sol 0 (MULTISPECTRUM; credits: Lunexit)67 visiteCaption NASA:"MRO's HiRISE camera acquired this dramatic oblique image of Phoenix descending on its parachute. Shown here is a a wider view of the full image, showing a 10 Km diameter crater informally called Heimdall, and an improved full-resolution image of the parachute and lander (in the inset).
Although it appears that Phoenix is descending into the crater, it is actually about 20 Km in front of it. It is difficult to believe that it is in front of the crater because it is so much smaller, but in reality it is, and that's a good thing because landing on the steep rocky slopes of the crater would have been far too exciting (or risky).
Images from the lander clearly show that it sits on a flat plain, although the rim of Heimdall may be visible on the horizon. Given the position and pointing angle of MRO, Phoenix is at about 13 Km above the surface, just a few seconds after the parachute opened.
This improved image shows some details of the parachute, including the gap between upper and lower sections. At the time of this observation, MRO had an orbital altitude of 310 Km, traveling at a ground velocity of 3,4 Km/second, and a distance of 760 Km to the Phoenix lander.
The image was rotated to a position that seems approximately parallel to the horizon based on the elongation of Heimdall Crater, but this is not exact. Thus, although Phoenix appears to hang from the parachute at an angle, as if swaying in the wind, the exact geometry has not yet been determined. The parachute image is very sharp as its apparent motion was straight down the HiRISE TDI (Time Delay Integration) columns. However, the surface of Mars was moving at an angle to the TDI columns, and thus is smeared by a few pixels, although the smear is not apparent at the reduced scale of the image shown here.
The Sun is almost directly behind HiRISE, so the parachute should be casting a shadow onto the slope of the Crater, but we cannot determine which of many dark spots is the shadow until a detailed geometric analysis has been completed". MareKromiumMag 28, 2008
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PHOE-SOL003-lg_570.jpgThe soil of Vastitas Borealis - Sol 3 (Natural Colors + MULTISPECTRUM; credits: Lunexit)64 visitenessun commentoMareKromiumMag 28, 2008
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PHOE-SOL002-lg_436-437-2.jpgThe soil of Vastitas Borealis - Sol 2 (Natural Colors + MULTISPECTRUM; credits: Dr Gianluigi Barca & Lunexit)68 visitenessun commentoMareKromiumMag 27, 2008
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PHOE-SOL002-lg_438-439-2.jpgThe soil of Vastitas Borealis - Sol 2 (Natural Colors + MULTISPECTRUM; credits: Dr Gianluigi Barca & Lunexit)77 visitenessun commentoMareKromiumMag 27, 2008
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PHOE-SOL002-lg_501.jpgDistant Mountains... - Sol 2 (MULTISPECTRUM; credits: Lunexit)68 visitenessun commentoMareKromiumMag 27, 2008
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PHOE-SOL000-HIRISE.jpgThe Descent of Phoenix, from MRO - Sol 068 visiteCaption NASA:"NASA's Mars Phoenix Lander can be seen parachuting down to Mars, in this image captured by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. This is the first time that a spacecraft has imaged the final descent of another spacecraft onto a planetary body.
From a distance of about 310 Km (193 miles) above the surface of the Red Planet, Mars Reconnaissance Orbiter pointed its HiRISE obliquely toward Phoenix shortly after it opened its parachute while descending through the Martian Atmosphere. The image reveals an apparent 10-meter-wide (30-foot-wide) parachute fully inflated. The bright pixels below the parachute show a dangling Phoenix. The image faintly detects the chords attaching the backshell and parachute. The surroundings look dark, but correspond to the fully illuminated Martian surface, which is much darker than the parachute and backshell.
Phoenix released its parachute at an altitude of about 12,6 Km (7,8 miles) and a velocity of 1.7 times the speed of sound".MareKromiumMag 27, 2008
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PHOE-SOL002-lg_527.jpgTwilights over Vastitas Borealis... - Sol 2 (MULTISPECTRUM; credits: Lunexit)68 visitenessun commentoMareKromiumMag 27, 2008
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PHOE-SOL002-lg_542.jpgTwilights over Vastitas Borealis... - Sol 2 (MULTISPECTRUM; credits: Lunexit)66 visitenessun commentoMareKromiumMag 27, 2008
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