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Questions tagged [radio-telescope]

Questions about telescopes used to detect electromagnetic radiation; specifically radio waves.

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What kind of ground-based radio astronomy is NASA's DSN used for? Who are the PIs?

I looked at DNS Now to check on Hayabusa-2 and compare to http://haya2now.jp/en.html and saw that DSS 34 in Canberra is currently in setup/teardown for Ground Based Radio Astronomy! In this status ...
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From where do all the space agencies receive signals from scientific spacecraft from launch to deep space?

The ISRO web page Ground Segment says: SRO Telemetry Tracking and Command Network (ISTRAC) will be providing support of the TTC ground stations, communications network between ground stations and ...
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Was the Doppler shift of InSight's “tone” measured and plotted somewhere?

I watched a YouTube live broadcast from the InSight mission control area and saw lots of images of happy people cheering and jumping up and down, which is great! If it wasn't 4 AM where I was I might ...
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When two DSN stations are used in a VLBI measurement, how does a third station serve as a “relay” to tie-together observations?

Section 2.1 of the DESCANSO document 211 Wideband Very-Long Baseline Interferometry (from here, found here) says: The precision of a VLBI measurement improves with the length of the baseline. The ...
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Why will radioastronomy telescopes be used to listen to InSight's entry into Mars' atmosphere instead of DSN?

The JPL News article How NASA Will Know When InSight Touches Down is interesting and worth a read. It says that during the atmospheric entry, descent and landing, the Mars InSight probe will be ...
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Could a radio telescope orbit Earth-Moon L2 so that it is in the Moon's radio shadow?

Chang'e 4, a Lunar orbiter and lander on the far side of the Moon, will put a relay satellite in a halo orbit around EML2 that also will do some low frequency radio astronomy. Since the Chang'e 4 ...
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2answers
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How does this strangely-shaped horn at Honeysuckle Creek Tracking Station work?

After reading the BBC article Australia to create national space agency and clicking around to identify the dish antenna shown in the photo in the article, I came across an image of an interesting ...
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Is 2012 TC4 part of the Near-Earth Object Human Space Flight Accessible Targets Study?

This nifty answer describes and provides links to the data of the recovery of near earth object 2012 TC4, and the answer also shows the first actual image of the body for this pass. At apparent ...
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How was radio telescope observation data transferred before wide availability of high-speed Internet?

We are used to having hundreds of megabits or more per second of data transfer rates at our fingertips, over the Internet, straight to our desks. For higher-end connections, even multiples of gigabits ...
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Why doesn't thermal radio emission from a DSN “hot dish” completely swamp the benefits of a cold LNA?

The 70 meter DSN dishes are often used to receive the weakest signals, and so their receiver LNAs have cryogenic front-ends in an assembly that also contains a LHe refrigerator and vacuum system. If I ...
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How will “precision formation flying” likely be first demonstrated?

The OP of the question Would a lunar telescope provide a significant improvement over terrestrial based equipment? got slightly trounced for asking "the wrong question", but this answer does address ...
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Was the time of Schiaparelli's landing chosen specifically so the Giant Meter Wave Radiotelescope could listen?

The ESA blog post Listening to an Alien Landing describes the plan to monitor a UHF beacon transmitted by Schiaparelli during it's upcoming descent and landing on Mars (2016-10-19 about 14:45 UT). The ...
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1answer
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What is the largest single project (in tonnage) in which an international space cooperative has launched and or constructed in space?

Science fiction has given us countless examples of international space campaigns (exp: Star Trek's "Federation"). But what's the largest and most active space campaign from Earth and how much (in ...
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Will there be joint observations from earth and the Juno spacecraft when it reaches Jupiter?

This is a comparison of a visible light image and a radio image of the area around Jupiter's great red spot from an article in Science News. The radio data is from the VLA, and the frequency is chosen ...
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How far can SETI's ear listen?

With the current infrastructure available to SETI, how distant would it be feasible to pick up routine radio communications and noise from a planet emitting radio with identical power and signal ...
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What data are used to do these 3D asteroid renderings?

The number of asteroids that have been directly photographed is very limited, because the probes that do so are very large budget and public. That's why it's surprising to see images like this of ...
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Would it be possible to create a community-built array-style radio telescope? [closed]

Using off-the-shelf technology, would it be possible to create a community-built array-style radio telescope? Much like the Very Large Array or Square Kilometer Array but using home grown antennae ...