Questions tagged [imaging]

Questions regarding visual impressions of objects or instruments used to capture visual impressions.

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Why is there never enough room on satellites to hold all the equipment needed?

Why can a satellite run infrared and other forms of data collecting equipment and stream live results back for the public, but not take photos or video? I am guessing there is never enough room to ...
William devries's user avatar
1 vote
0 answers
63 views

What is the feasibility of High Resolution (< 5m) Hyper spectral Imaging satellite?

Many companies are coming up with claim of less than 5m resolution of hyper spectral imagery, although the payloads of such caliber could be built, I have come to the understanding that SNR would be ...
Bharath Simha Reddy's user avatar
2 votes
1 answer
185 views

How do I calculate the maximum northern and southern latitude a LEO satellite can image?

How do I calculate the maximum northern and southern latitude a LEO satellite can image? What parameters would I need?
pottie's user avatar
  • 21
6 votes
1 answer
129 views

Why does the quality of New Horizon LORRI images vary so much?

I was looking on OPUS for New Horizons images from the Arrowkoth approach, and was surprised at the differences between back-to-back images taken with the same duration exposure. I'd expect them to be ...
David Bailey's user avatar
0 votes
1 answer
111 views

Why does this image from Artemis 1 have horizontal stripes?

This image (crop shown below) from Wikipedia's article on the the Artemis I mission has some unexpected artifacts: horizontal stripes across the image that look like missing data. I'd expect that ...
Mark's user avatar
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6 votes
2 answers
407 views

Orion Navigation Camera Image Quality

On November 21, 2022, the Orion Navigation Camera made several images of the lunar surface. Flight Day 6: Orion's Optical Navigation Camera Captures Lunar Surface The image quality is much lower ...
Dennis Williamson's user avatar
1 vote
0 answers
82 views

Help find Pioneer 10 and 11 images?

I've been trying to locate a place where all the images from Pioneers 10 and 11 are stored, and I can't find anything. So, as a result, I'm making one myself. Any images you have or information you ...
Doctor Sex's user avatar
9 votes
1 answer
108 views

Could Bepi-Colombo image the Messenger impact site?

Is the location of the impact site of Messenger known with sufficient detail to image it from low orbit? Does Bepi-Colombo have a high enough camera resolution to image Mercury at whatever the ...
qazwsx's user avatar
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2 votes
1 answer
546 views

How did the JWST take a selfie?

During the alignment of JWST primary mirrors, this selfie was taken: (source: NASA) I think we're seeing here the primary mirrors, with the secondary in the center and the reflection of the support ...
Ludo's user avatar
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8 votes
0 answers
122 views

How do people know how big the rocks are in the photos of Titan's surface?

How do people know how big the rocks are in the photos of Titan's surface?
space-enthusiast's user avatar
3 votes
0 answers
32 views

New Horizons MVIC/Ralph colour channel image alignment

I'm working with some New Horizons MVIC/Ralph data. I'm taking the red, blue, and NIR channel data and create a false colour image, like this: (PDS Label of Red Channel image, accessed from OPUS) ...
BrendanLuke15's user avatar
4 votes
2 answers
140 views

JWST detector heat load

A lot of information has been published about shielding the JWST from solar radiation and the need to maintain the detectors at a low temperature, but little has been said about the other sources of ...
James Pruett's user avatar
5 votes
1 answer
376 views

Help me understand these tweeted images of JWST moving through Orion!

@nealmcb's answer to Which direction/constellation is the James Webb is headed towards is "Orion" and links to twitter via Update: See photo of JWST in Orion by @Skysurfer77x - amazing! I ...
uhoh's user avatar
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4 votes
1 answer
2k views

Was an onboard camera during a rocket launch ever pointing to the side rather than down?

I think all onboard cameras I ever watched were pointing down, towards the engine, during the ascent of the rocket. Do you know of any rocket that had a camera pointing to the side (towards the ...
user avatar
2 votes
1 answer
155 views

How are astronauts aboard the Tiangong space station keeping busy?

Per Wikipedia's Tiangong space station viewed today: Days in orbit: 3 months, 15 days (13 August 2021) Days occupied: 1 month, 27 days (13 August 2021) Currently it is just the single core ...
uhoh's user avatar
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4 votes
2 answers
132 views

Has opalescence ever been observed on any solar system body besides Earth? Or at least from a sample from one?

New method for exoplanet detection based on iridescence? in Astronomy SE asks about observations of exoplanets, but here I'm asking about our own solar system bodies. Question: Has opalescence ever ...
uhoh's user avatar
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1 vote
1 answer
88 views

Has iridescence ever been observed on any solar system body besides Earth? Or at least from a sample from one?

New method for exoplanet detection based on iridescence? in Astronomy SE asks about observations of exoplanets, but here I'm asking about our own solar system bodies. Question: Has iridescence ever ...
uhoh's user avatar
  • 149k
5 votes
0 answers
86 views

How does ECOSTRESS measure both temperature and emissivity of the Earth's surface simultaneously? (Science package aboard the ISS)

The This Week at NASA video A U.S. Commercial Spacecraft Departs the Space Station on This Week @NASA – July 2, 2021 includes the following quote: Data from NASA’s Ecosystem Spaceborne Thermal ...
uhoh's user avatar
  • 149k
13 votes
1 answer
829 views

How did Ingenuity get such a sharp image of the shadow of its own high-speed helicopter blades?

On the NASA released self-picture of Ingenuity, shot while hovering over Mars' surface the shadow of Ingenuity with its blades is very clean. The rotational speed of the blades is said to be around ...
Tom's user avatar
  • 233
2 votes
0 answers
72 views

How to filter NASA MARS2020/Perseverance raw images by altitude and azimuth of mastcam?

This URL allows querying NASA RSS API for Perseverance raw images: https://mars.nasa.gov/rss/api/?feed=raw_images&category=mars2020&feedtype=json&page=0&num=50&order=sol+asc&...
jumpjack's user avatar
  • 3,033
2 votes
1 answer
96 views

Looking for photos of spacecraft/probes while not in orbit around a planet

I'm on a hunt for photos of man-made objects taken when they are not in orbit around a planet and they seem to be few and far between. My guess is that most spacecraft can't take selfies and no-one ...
sdfgeoff's user avatar
  • 121
6 votes
1 answer
95 views

Perseverance drove for the first time on Mars ! (on Sol 14) Can I find somewhere how much and in what direction?

Image Credit: NASA/JPL-Caltech. The image was acquired on March 6, 2021. (Sol 15) Click on the image, and then again, for a closer view. Is there an (interactive) map that shows the route the ...
Cornelis's user avatar
  • 7,503
4 votes
1 answer
489 views

Download all Perseverance Raw Images

I want to make an archive of all the Raw Images Percy will make during her mission. I would love to have separate folders for each Sol. The plan is to run a script which then grabs the images from the ...
RAD6000's user avatar
  • 1,168
3 votes
1 answer
297 views

How did images taken by Perseverance's landing stage reach Earth despite its crash landing?

During Perseverance's powered descent, cameras aboard the descent stage recorded Perseverance's deployment using its Sky Crane. After rover touchdown, the descent stage flew away until it ran out of ...
Camille Goudeseune's user avatar
1 vote
0 answers
52 views

Future plans and advances for improved extrasolar planet imaging; has anything changed since 2019?

I have seen What is the state of the art of exosolar planet imaging in 2019? but answers there simply address the types and quality of images. Here I'd like to ask about plans for future technology to ...
Outsider's user avatar
  • 578
5 votes
1 answer
156 views

Are spacecraft star cameras ever used as scientific instruments for research?

There are quite a lot of spacecraft that have been up there a while and a lot of them have star cameras for attitude determination and for attitude control. Space telescopes (both heavenly and Earth-...
uhoh's user avatar
  • 149k
2 votes
1 answer
80 views

Surface processes of the valleys on Mars

I have two related questions about geophysical processes related to talus* fans on Mars: How were talus fans on Mars formed? (like Valles Marineris or Kasei Valles) What is the role of these fans or ...
Deniz Yazıcı's user avatar
2 votes
1 answer
110 views

What's going on with the OSIRIS-REx sample caption video that's circulating on twitter?

Nasa footage is available here: https://svs.gsfc.nasa.gov/13744 The first series ("Movie 1") shows a lower frame rate followed by what seems like a continuous, rapid collection of images. In ...
Anton Hengst's user avatar
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3 votes
1 answer
192 views

Which spacecraft far from Earth have arc second resolution cameras that could measure Betelgeuse's position?

All hands on deck! We have to measure the distance to Betelgeuse ASAP because Recent headlines saying that Betelgeuse is much closer than we thought, and they point to Standing on the Shoulders of ...
uhoh's user avatar
  • 149k
2 votes
1 answer
135 views

Was a "spare LORRI" camera available to take matching image on Earth the same time New Horizons took the parallax image from the Kuiper belt?

It doesn't have to be the source of the "Earth" image used to demonstrate parallax, I only want to know if a spare, prototype, or reference LORRI camera system was potentially available for ...
uhoh's user avatar
  • 149k
1 vote
2 answers
102 views

Earth’s Orbit speed and apparent motion question

Earth travels around the Sun at 67,000 mph. Hypothetically if it was possible to be in Space in a ship or Space walk and be at a complete stop and stationary outside of Earth’s orbit and not affected ...
Rocco Bollotta's user avatar
17 votes
2 answers
4k views

Why was the imaging quality of the Voyager probes *much* better than the Pioneer probes despite being launched only 5 years later?

Pioneer 10 and 11 launched in 1972 and 1973, respectively, whereas both Voyager probes launched in 1977. I do expect the imaging quality to improve in 5 years but the difference is a bit too much. ...
user267545's user avatar
2 votes
1 answer
291 views

How (the heck) does SOHO's SWAN camera image the entire 4π sr celestial sphere?

Comet C/2020 F8 (SWAN) discussed in Astronomy SE: How is Comet SWAN C/2020 F8 doing? Will it become easily visible by eye? Why is SWAN dimming? was discovered by humans but using the SWAN camera on ...
uhoh's user avatar
  • 149k
1 vote
1 answer
139 views

Do we know what is the approximate size of this object on Pluto's surface?

Reportedly this object has been captured on Pluto's surface. Which mission does this image originate from and can we estimate its size?
J. Doe's user avatar
  • 2,910
4 votes
0 answers
124 views

Is this digitally created ESA image of a Mars landscape incorrect to what the human eye would see?

This ESA image below of Noctis Labyrithus was created with data obtained from the High-Resolution Stereo Camera (HRSC), onboard ESA’s Mars Express, seems to depict a time near either sunrise or sunset....
Bob516's user avatar
  • 6,917
4 votes
1 answer
168 views

Did any lander or rover photograph the sun rising or setting during a Martian dust storm?

Mars Pathfinder photographed the setting sun, and University of Arizona Mars Pathfinder Imaging Team produced color corrected images (as they would appear to the human eye) like these This is a ...
Bob516's user avatar
  • 6,917
7 votes
1 answer
3k views

Are there any photo(s) of International Space Station (ISS) captured from above its altitude? [duplicate]

Are there any attempts made to capture an image of the whole ISS in one take? Or is it not currently practically possible? If Soyuz, SpaceX Dragon, etc. have cameras installed on them, images can be ...
learner's user avatar
  • 665
6 votes
2 answers
898 views

Could the James Webb Space Telescope detect chlorophyll on a exoplanet?

Say there's an exoplanet identical to Earth 20 light years away, and also assume it orbits at an angle so that it transits its star when seen from our solar system. Would the JWST be able to detect ...
qazwsx's user avatar
  • 932
3 votes
1 answer
134 views

Mars twilight photos

From the file:PIA19401-MarsCuriosityRover-GaleCrater-Sunset-Animation-20150415.gif Of the four images below from the gif, one of them depicts twilight. Were there anymore twilight images in this ...
Bob516's user avatar
  • 6,917
2 votes
1 answer
2k views

Why is there no image of the Earth taken from the lunar surface during Apollo 12,15 and 16?

I know there are photographs of the Earth from the lunar surface taken during Apollo 11, 14 and 17. Here are some for reference (there are many for Apollo 17). Apollo 11 (AS11-40-5923): Apollo 14 (...
Star Man's user avatar
  • 5,908
4 votes
1 answer
139 views

Are Longjiang 1 and 2 the only spacecraft to image the far side of the Moon in a single frame with detail?

The image below, found in Was this the first-ever photo of a full moon very close to lunar new year? (and used here also) where it was credited to New photo of Lunar farside and Earth was taken by the ...
uhoh's user avatar
  • 149k
4 votes
3 answers
592 views

Why are the poles of the Moon in Google Earth so different from other regions?

I am well aware of the fact that the poles of the Moon are different from the rest of the regions in many ways. But in Google Earth's Moon, the poles are so different from what we would see if we were ...
Vishnu's user avatar
  • 3,256
3 votes
0 answers
89 views

Could the bright spot on the image captured by Curiosity have been caused by a data transmit or storage failure?

The image above, one of a total of 21 images shot over a 4 minutes span, was captured by Curiosity on June 16,2019 or sol 2438 on Mars. Only in this image a bright spot shows up, while the next and ...
Cornelis's user avatar
  • 7,503
9 votes
2 answers
2k views

Why would thermal imaging be used to locate the Chandrayaan-2 lander?

Tweets and news suggest that Chandrayaan-2 lander may have been located, using thermal imaging by the Chandrayaan-2 orbiter. Space.com: India Just Found Its Lost Vikram Lander on the Moon, Still No ...
uhoh's user avatar
  • 149k
1 vote
1 answer
166 views

Solar system sized telescope and resolving details of the M87 black hole

In this video Katie Bouman mentions that an earth sized telescope needs to be used for getting images like the M87 Black Hole: Stellar distances are estimated using ...
safe_malloc's user avatar
6 votes
1 answer
244 views

Where exactly on Mars was Curiosity when this image was taken?

The BGR article NASA’s Curiosity rover saw something flash on Mars, and people are freaking out is one of many nearly identical clickbait articles about a recent image that contains a bright spot. ...
uhoh's user avatar
  • 149k
2 votes
0 answers
182 views

Separating fact from fiction, how to get from this radar image to this GIF?

The NBC News article Mile-wide asteroid and its tiny moon to zoom past Earth this weekend; Dubbed 1999 KW4, the "binary" space rock will skim past our planet harmlessly at a distance of 3 million ...
uhoh's user avatar
  • 149k
4 votes
1 answer
178 views

Why was the image sensor design for Juno so... odd? [duplicate]

I attended the North Eastern Astronomy Forum this year and one of the speakers was mentioning that JunoCam will not be working because of the angle of the spacecraft. He was giving a lecture on what ...
Magic Octopus Urn's user avatar
1 vote
2 answers
281 views

Have optical zoom systems been used in space exploration?

Here, 'optical zoom' means an optical system that changes magnification (angle subtended per pixel). It would not mean for example switching from one camera to another on Hubble, or changing to ...
uhoh's user avatar
  • 149k
3 votes
1 answer
135 views

What can cause grooves (stairs like) features on Mars's ground that is opposite to water flow direction?

Looking at an image taken by Mars Odyssey THEMIS (Thermal Emission Imaging System) camera of an unnamed crater in Aonia Terra region I noticed what looks like grooves or ridges that resemble a stair ...
Geordi La Forge's user avatar