Philae проснулся, что теперь?

[@iMate]

Она чёрная.

[@a5b]

Камера на спутнике — OSIRIS www2.mps.mpg.de/de/projekte/rosetta/osiris/index_print.html «NAC… through 12 discrete filters over the wavelength range from 250 to 1000 nm WAC 14 discrete filters (240-720 nm)… equipped with 2048 x 2048 pixel CCD detectors,»
и VIRTIS «mapping channel utilizes a silicon charge coupled device (CCD) to detect wavelengths from 0.25 μm to 1 μm»
Остальные камеры и датчики работают вне видимого спектра.

Комбинируя кадры, снятые с разными фильтрами можно собрать цветное изображение (если правильно собирать и хватает фильтров — то и с реальными цветами), но оригиналы все же не содержат данных о цвете.

Вероятно, искусственные цвета — www.cbsnews.com/news/rosettas-first-color-photo-of-comet
Rosetta's first color photo of comet December 2, 2014

This photo was taken with the narrow angle camera and the help of 11 optical filters. It is unclear at this time whether it shows the comet's "true colors," or whether the filters imbued the image with an artificial tan.
European Space Agency clarified that its black and white pictures don't accurately reflect actual color, stating that «comets are blacker than coal» and explaining that images from Rosetta's navigation camera (NAVCAM) are «grey-scaled according to their brightness with additional contrast adjustments to bring out the full range of features.

Цветная картинка от команды (13 December 2014): twitter.com/elibonora/status/543722996570292224 aliveuniverseimages.com/speciale-missioni/sistema-solare/rosetta/1081-da-osiris-la-prima-immagine-a-colori-della-cometa-67p
»The «true» color photo at the opening were obtained by the team using three frames taken in sequence from the NAC at wavelengths centered on red (744 nm), green (536 nm) and blue (481 nm). "


На reddit авторы «псевдоцветных снимков» заявляют, что ESA не выкладывала исходных изображений с необходимыми фильтрами: www.reddit.com/r/space/comments/2hdei3/actual_colour_photograph_of_comet_67p_contrast

Hi all, no raw data. No OSIRIS image has been released with different filters so can get an RGB image as result. We started with a single image flic.kr/p/p6kuZs working on the information that we all know (low albedo, dusty surface, and so on), obtaining three virtual layer. Processing, as long as even our eyes were pleased and believed what they was looking at. In a way, we pushed to limit a technique that we use for a long time to make color native b/w shots to increase the visual perception.

[@krestic]

А у 2х-километровой каменюки, правда есть орбита, способная удерживать спутник? Или это условное название?

[@a5b]

Когда она была треугольной — это точно было условное название:
space.stackexchange.com/questions/5117/is-this-really-rosettas-orbit-around-67p


Однако в space.stackexchange.com/questions/8348/how-close-can-rosetta-come-to-the-67p-churyumov-gerasimenko-comet пишут:

The comet's gravitational force is so small that Rosetta often doesn't really orbit the comet. When Rosetta's distance from the comet gets too large (~100 km), it has to use its thrusters to adjust its trajectory every so often, and its path looks like a slightly curved triangle.

ссылаясь на www.esa.int/Our_Activities/Space_Science/Rosetta/Rosetta_swoops_in_for_a_close_encounter
где демонстрируются совсем не эллиптические маневры с близкими пролетами.
«For the rest of the current mission plan in 2015, in fact, Rosetta will always conduct flybys, and, based on predictions of increasing cometary activity, can no longer be manoeuvred so close to the comet as to be in a gravitationally bound orbit.»