Questions tagged [imaging]

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

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6 answers
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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 ...
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 ...
12 votes
2 answers
563 views

What makes materials on the Moon look so different when the sun is high?

The surface of the Moon looks very different in orbiter images taken at local noon than it does in images from other times. Here are two examples of the same places in Lalande Crater. In each image, ...
2 votes
1 answer
186 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?
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 ...
8 votes
6 answers
3k views

Could a spy satellite image another satellite?

Is it possible for one satellite to image another at high resolution? Would this information be useful from an intelligence perspective?
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 ...
6 votes
2 answers
408 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 ...
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 ...
9 votes
1 answer
109 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 ...
13 votes
2 answers
737 views

Did New Horizons capture enough of Pluto's surface to create its global map?

Given the short amount of time that New Horizons focused on Pluto, did it capture enough of its surface to create a global map of it?
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 ...
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 ...
6 votes
3 answers
2k views

Why would the James Webb Space Telescope need adaptive optics outside the atmosphere?

Adaptive Optics is generally used with ground telescopes to correct for atmospheric distortions or seeing. Right now it is used mostly in the infrared but is starting to be used in longer visible ...
2 votes
1 answer
549 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 ...
35 votes
3 answers
25k views

When will we have the technology to directly observe an exoplanet with significant clarity?

Are there currently any projects underway to develop a telescope which will have the ability to directly observe an exoplanet with any clarity? I don't mean blurry (yet impressive) images like this ...
8 votes
0 answers
123 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?
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) ...
3 votes
1 answer
367 views

How was "toolbag-sat" imaged in space? (from Scott Manley's video)

In Scott Manley's video Could An Astronaut Throw Something From Orbit To Earth? at about 02:00 he includes a sequence of images that shows the famous tool bag that ...
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 ...
9 votes
2 answers
818 views

Why the thermal imaging of Mercury's surface requires a telescope on a jet flying through an eclipse?

The NASA News Feature Chasing the Total Solar Eclipse from NASA’s WB-57F Jets describes two telescope-equipped NASA jets that will fly fast enough to spend about 7 minutes in the Umbra (totality) of ...
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 ...
6 votes
2 answers
664 views

Hovering Carbonite! Why do these satellite videos of Earth appear to be made from a geostationary location?

The BBC News article UK satellite makes HD colour movies of Earth has led me to a series of YouTube videos as well recorded by the Carbonite-2 spacecraft built by Surrey Satellite Technology to be ...
5 votes
1 answer
305 views

How good are Lucy's cameras? Improvements since New Horizons?

In the question Where is Lucy going? (asteroid mission) I've asked for more clarification on the trajectory of the Lucy mission's trajectory. I believe that Lucy will simply do a close fly-by of each ...
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-...
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 ...
8 votes
3 answers
261 views

When can we (public) expect to see the first optical images of Jupiter from the Juno spacecraft?

As many of us know, Juno spacecraft achieved orbit of Jupiter yesterday (July 4, 2016). Does anyone have an educated guess on approximately when we might see the first optical images from Juno in ...
7 votes
1 answer
2k views

Stripe of high def imagery on Google Moon

When messing around with Google Earth's Moon and Mars features I noticed that the lunar imagery used is mostly homogeneous except for a large stripe across its' surface. See Image: This "stripe" also ...
2 votes
1 answer
325 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 ...
2 votes
1 answer
457 views

Is this the first photo of Jupiter's ring(s) from deep space?

The BBC news article Juno peers below Jupiter's clouds includes several very interesting images from the Juno spacecraft. The one below is a photo of Jupiter's faint ring. The article says: One very ...
2 votes
3 answers
449 views

When was stereoscopic photography first used intentionally on solar system body?

I have stumbled across the fascinating page Photogrammetric Analysis Of Apollo 11 Imagery: New camera-station map with improved locations at the following website: https://www.hq.nasa.gov/alsj/a11/...
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 ...
2 votes
1 answer
156 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 ...
3 votes
1 answer
193 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 ...
4 votes
1 answer
501 views

Is delay-doppler radar imaging of NEO asteroids possible only if it spins fast enough?

Emily Lakdawalla's blog on the Planetary Society's page explains some of the basic principles in the delay-doppler radar imaging of asteroids, and other astronomical bodies by extension. Radar from a ...
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 ...
13 votes
1 answer
831 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 ...
14 votes
1 answer
1k views

Do Mariner 4 hand rendered images still exist?

At the NASA web site is a story about how the first images returned from Mariner 4 were rendered by hand. Do these images still exist, for example in a museum?
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 ...
2 votes
4 answers
320 views

Examples of gamma ray or X-ray imaging of small planets, moons, or asteroids, or at least how to calculate intensity thereof?

Have any spatially resolved measurements of gamma rays or X-rays from medium and small solar system bodies been collected from space? These might be planets, moons, or asteroids for example, but ...
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 ...
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&...
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 ...
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 ...
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 ...
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 (...
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 ...
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 ...
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 ...
14 votes
1 answer
2k views

Any imagery from Shuttle Columbia's SILTS pod on the internet?

(Inspired by this question) One of the distinguishing features of Shuttle Columbia was its Shuttle Infrared Leeside Temperature Sensing (SILTS) pod. This was an experiment that took infrared imagery ...