It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Thank you.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Originally posted by ArMaP
Originally posted by dainoyfb
1. Imaging probes should be able to orbit 30 or more times closer to the surface of the moon than imaging satellites orbiting the earth.
Yes, but such an orbit would be more difficult to maintain and it would spend more fuel, that is why some photos from the Apollo missions are so good, they were very close and could take some great photos, but they were not on a ship that was supposed to be at that orbit for a year or more.
Originally posted by ArMaP
Also, closer means higher resolutions, but higher resolutions mean less coverage in the same time frame. For example, to make a full coverage of the Moon's surface with a camera with 5440x4080 pixels images (like a Sinarback 54) at a resolution of 0.5 meters per pixel they would need to take (without considering overlapping, needed to join the images) almost 7 million photos.
Originally posted by ArMaP
reply to post by dainoyfb
2. Because there is apparently no atmosphere there should also be a huge advantage regarding image clarity because there is not 100+km of air, dust, water vapor, pollution and turbulence to contend with.
I think that is why the photos are always clear, regardless of the distance, the only difference is in the amount of detail that can be seen on the photos, the sharpness is the same.
Originally posted by ArMaP
reply to post by dainoyfb
The main difference, as I see it, is the harsh conditions that the camera has to endure, with (at least) sharp changes of temperature and higher levels of radiation during the whole mission than common cameras for Earth use have to endure.
As for the difference between Earth satellites and Moon satellites, the main difference is that it is relatively inexpensive to launch an Earth satellite when compared with a Moon satellite, and the Earth satellite can have some work done if there is a need, while a maintenance mission to the Moon would have a higher cost than the original mission.
But I may be wrong, I do not have any special knowledge about space travel and artificial satellites.
Dear (H.A),
Thank you for your inquriy
KAGUYA standard products will be open to public from this November
through our homepage.
Thank you for your answer,
May I ask why there is a six month wait just to see some photographs? Are the photographs processed before they are released to the public?
Dear (H.A),
Since KAGUYA is science mission, our scientists have to study those data for their research before open to public.
It is usual way for science mission.
Originally posted by kenton1234
Look at google earth. With google earth I can see my kids bicycle in the drive way and even my mailbox. Yet with Americas Clementine, the Japanese Kayuga and India's Chandrayaan-1 and all we're getting are the exact same type of photos taken by the Apollo astronauts.
Images from google earth are generally from 'landsat satellite imagery'.
Originally posted by HiAliens
Received the following email within 25 minutes:
Dear (H.A),
Since KAGUYA is science mission, our scientists have to study those data for their research before open to public.
It is usual way for science mission.
So she didn't answer the question about processing.
What should I ask next?
[edit on 15f20096pmSat, 30 May 2009 19:17:20 -050020 by HiAliens]
Originally posted by kenton1234 With the photos we got from the Clementing probe it would have been alot cheaper to stay home and look through a telescope.
At 08:01 PM 12/5/2006, you wrote:
Dear Mr Kardel
I have been wondering for some time why there are no images of the Moon from Mount Palomar. I have searched the web and have not found any. I may have missed them though.
Could you possibly let me know if there are such images and where I might find them?
Thank you
Ron Schmidt
Pegasus Research Consortium
From:
Scott Kardel
Date: Wed, 06 Dec 2006 09:34:36 -0800
To:
Ron Schmidt
Hi Ron,
I haven't seen any images of the Moon from Palomar either. It is possible that some were taken long ago, but astronomers would rather explore the Moon with spacecraft and use the big telescopes for observing much, much fainter objects.
Clear skies,
- Scott
W. Scott Kardel
Public Affairs Coordinator, Palomar Observatory
WWW:www.palomar-observatory.org
Originally posted by Erasurehead
Ask specifically for images of the object coordinates
Far Side - 17.25 deg S and 117.62 deg E
Originally posted by dainoyfb
This may be true I'm no orbital expert. Can you site a source that states that a close orbit or elliptical orbit would be impossible for an imaging mission to the Moon?
Beyond this point even at much higher orbits, higher resolution images have been possible for decades.
What is wrong with 7 million photos? How many photos are used by Google earth? And thousands more are added by there land vehicles every day. With today's technology I can't see how this is relevant.
Also, global surveys could be made at lower magnifications while areas of interest could take advantage of the higher resolutions.
Basicaly, I was agreeing with you, the lack of atmosphere means they can get much sharper photos.
I'm not sure what you are trying to point out here, could you rephrase?
Aren't the sensors on the rovers just 1024x1024? That is a field that I haven't been following, so the possibilities of being wrong are even greater than usual.
There are in fact many high resolution imaging chips in space including ones on the Mars rovers, ones that have been running fine on the Hubble Space Telescope for years, ones being implemented on the JWST which will be unreachable for service during its entire mission at the Earth/Moon L2 point.