Questions tagged [data-transmission]

Questions regarding transfer of data from spacecraft and probes

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S-Band transceiver schematics [closed]

I'm working on a cubesat, and I want to communicate in the S-Band, arround 2.4GHz. And I'm searching for schematics of a transceiver example with arround 35 dBm of output power. If any have a .pdf, ....
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Trying to understand if or how operating a rover on Mars from Earth could work

If you used something like google maps to create a 360° Topographical map of an area on Mars could you use it to create a virtual simulated reality similarly to how you would manipulate google maps ...
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Will Perseverance's landing be live streamed?

I know that the launch will be live streamed, but I am interested in the landing. Is there a plan to make it possible for the general public to get access to landing video as soon as mission control? ...
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Would a long-term network of relay satellites but worthwhile for interplanetary communication? [duplicate]

Communication rates with probes in the outer solar systems are extremely low (Voyager is ~160 bps), because of the inverse square law and the extreme distances involved. Achieving these rates ...
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Curiosity / MRO UHF connection and weak signal modulation

In the case of MRO and Curiosity communications via UHF, an active feedback system was implemented in which Curiosity monitored the quality/SNR of the connection and commanded Curiosity to increase / ...
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What are the general properties and specs for JWST's onboard data and image processing capabilities?

Answers and comments on What is the data storage capabilities onboard the James Webb Telescope? which reference the James Webb Space Telescope User Documentation item JWST Solid State Recorder mention ...
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What are the data storage capabilities onboard the James Webb Telescope?

If something were to happen that would cause the James Webb Telescope to be unable to downlink its data to earth, how long could it continue collecting observations before it would run out of storage ...
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Antenna required to reach titan

There are two 12U cubesats, one in Earth orbit and one in orbit around Titan. They have a transmit power of 700 W (for short periods) and have identical antennas. What diameter and what type of ...
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What are the data mining platform does Space agencies such as Nasa or SpaceX use?

What are the data mining platform does Space agencies such as Nasa or SpaceX use? Just a few would be helpful. This is for data mining and data analysis purpose. In general, i was looking something ...
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What was the first use of analog to digital conversion in a satellite?

This answer to Do the Voyager probes transmit analogue or digital data? states that the Voyagers sent only digital data. This is no doubt mostly because analog data was digitized and store digitally ...
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Do the Voyager probes transmit analogue or digital data?

When the Voyager probes take a picture or record other data, do they digitize it on board and send a digital signal to earth (i.e. zeros and ones) or do they transmit an analogue signal (like old-...
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Will the Mars 2020 rover be able to record high-framerate video of its helicopter?

According to this answer, there have been no instances of video recorded from beyond lunar orbit. Mostly, this makes sense as rovers and spacecraft are served just as well with pictures and nothing ...
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Transmission of video and audio signals

I know this is a silly question.In july,2019 NASA's insight captured sound by wind gusts.Here is a link of video that shows the movement of robotic arms and sound of wind on mars. ...
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Is contact with Pioneer 7 or 8 still possible?

Pioneer 6 to 9 are a series of scientific probes launched 1965-1968 that orbit the Sun at about 0.75 to 1.2 AU. Would it still be possible to contact Pioneer 7 or 8? This question asks a similar ...
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Were the Apollo broadcasts recorded locally on the LM?

I've previously asked about how the recordings from the Apollo missions were originally recorded, and then transcribed; but I forgot about the video as well! It's well known that for some of the ...
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Tradeoffs to consider for OBDH system design for a Multi-Spectral Imager payload? (Enceladus Mission)

I am having a problem with designing the On Board Data Handling (OBDH) system for our MSI (Multi-Spectral Imager) payload. Our payload will be detached from Orbiter and it will take photos (for ...
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Long, low mass data transfer wire options

does anyone have any suggestions for wired communications over long distances on the Lunar surface? The maximum length would need to be around 1km. Distributors like Gore and Axon make great ...
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Does it make sense to invest money on space investigation? [closed]

I recently saw this picture - drawn by the excellent Spanish cartoonist 'El roto' Translated (please, don't hesitate to edit the question if you find a better translation) They looked for signals ...
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When scientific and engineering data are sent from space probes, are the signals repeated to minimize transmission error?

I would think that this would be the case. In any one transmission there will be a systematic error due to the fundamentals of the transmitter / receiver. Is there also a transient or stochastic error ...
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What exactly turned on the light indicating Apollo 8 was starting to fall towards the Moon?

@PearsonArtPhoto's answer links to the page Apollo 8, 21 – 28 December 1968 by Hamish Lindsay at honeysucklecreek.net from where I have quoted below. Question: What exactly turned on the light ...
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Opportunity's last tau was 10.8; what does that mean and how is tau defined and measured?

@ahiijny added a direct link to the Sol 5110-5114 MER B Downlink Report. These are the final days that signals were received from Opportunity. The message "Tau Value is NOT a Typographical Error" ...
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How was the Moon's first telescope used? (Apollo 16)

From Gizmodo's There's Poop on the Moon list of things left on the moon: This gold-plated telescope that was the first tool used to make astronomical observations from the surface of another ...
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Hijacked space data, notable instances of recovering images or other goodies from someone else's space mission?

The original of this GIF was tweeted here and I've reconstructed it because I don't know how to post it here (How to show this particular tweeted (GIF?) in a question? - trouble downloading). These ...
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What is carrier lock and bit lock?

I'm not sure if this question belongs here or in Amateur Radio, but during the acquisition of signal from New Horizons on New Year's Day, I heard the controllers call out "carrier lock", "symbol lock",...
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Displaying NMEA data in text console [closed]

I'm using an ublox EVK M8T and I'm trying to make a script that displays in text console in real time the data from NMEA and also the time marker from when an event happens. Is there a possibility to ...
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How will the Parker Solar Probe's data transmission keep up with data gathering?

The NASA article Preparing for Discovery With NASA's Parker Solar Probe says that we are now receiving data from the probe's first pass, but also that we will not receive all of the first pass's data ...
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How did Russian Scientist analyse the data from Sputnik 1?

I could not find any information about the process of extracting and interpreting data from Sputnik 1, or the involvement of computers in the data analysis of that information. Does anyone have info ...
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Why not a “live” visual connection with Curiosity on Mars all the time?

Note: Got the idea for this question by @uhoh's question: "Has anything close to video ("live" or otherwise) been shot in space from beyond the Moon ? To have the "feeling" of a "live" connection ...
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What does a NASA employee see on their monitor when a robot lands on Mars?

I have seen that many NASA employees (see the picture) were present in the control room when InSight landed on Mars on November 26, 2018. What I did not see is what exactly those people saw on their ...
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How could a transmission be relayed wirelessly from the bottom of Europa ocean to Earth?

Answers to Do you need a “wire” on a Europa submarine to phone home? are generally yes, but a wire is cumbersome and dramatically limits range, If a rover was sent to the bottom of Europa's Ocean ...
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Will there be live HD television from Mars with the Mars 2020 mission?

Is it known if live HD television from Mars would be possible with the Mars 2020 rover mission and if an extra channel would be possible just for relaying HD TV to make live broadcasts possible ? ...
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Does the International Space Station get TV?

For obvious reasons the ISS cannot get cable TV. Can the ISS get the new digital air TV or satellite TV using an issued dish and receiver like a house? How would that be done compared to how it is ...
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MarCo, Polo? Any further news, or images, or transmissions from the MarCo deep space cubesats?

Edit: Two more months have gone by since I posted this question. Can there still be no news? Nothing for the two MarCo cubesats to take photos of; not even each other? While InSight is still "...
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Why is New Horizons' data transmission speed so slow compared to Voyager?

New Horizons was said to be able to communicate at ~1kbit/s at Pluto and 38kbit/s at Jupiter. Communication with the spacecraft is via X band. The craft had a communication rate of 38 kbit/s at ...
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How does Curiosity know how to point and move it's high gain antenna in real time?

The Curiosity rover has a compact X-band high-gain antenna (HGA) that allows for low data rate communication directly with Earth, but is used mostly for higher data rates to spacecraft orbiting Mars, ...
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Has TDRS-13 officially graduated from “TDRS school” (entered into service)?

According to Wikipedia: TDRS-M, to be renamed TDRS-13 upon entry into service, is an American communications satellite operated by NASA as part of the Tracking and Data Relay Satellite System. The ...
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Does the TDRS user segment ever provide network functionality beyond being “customers”?

Celestrak's NORAD Two-Line Element Sets Current Data TLE page has many pre-defined categories for quick access for groups of spacecraft that share similar characteristics. I clicked on the ...
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Does variable distance to Mars affect data transmission rates?

There distance between Earth and Mars varies between 50 - 400 million kilometers because of their orbits. Does this affect data transmission noticeably? I'd naively expect you could transmit 8x faster ...
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Have deep-space spacecraft always used some form of spread-spectrum for data downlink?

tl;dr: Question: Have deep-space spacecraft always use some form of spread-spectrum for data downlink? note: I'm looking for some insight into why, and any possible exceptions, not just a "yes" or "...
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Is it possible to extend high speed data transmission with lasers to the distance Earth to Mars?

Data transmission using an optical laser between ground station and a GEO satellite may offer very high data rates, up to 1.8 GBit/s for instance. But what about a transmission from Earth to Mars ...
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How to calculate data rate of Voyager 1?

I've read the following passage in the answer to the Quora question How can Voyager send a signal strong enough for us to receive, in spite of its enormous distance from us? And how can it have the ...
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What exactly is the interaction that blocked Juno's data downlink near solar conjunction?

According to Space.com's article Juno Phones Home: Jupiter Probe Reconnects with Earth After 8th Flyby, Juno's recent close flyby of Jupiter and data collection happened while Jupiter was too close to ...
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What approximate bitrate is required for interplanetary spacecraft GNC?

What is a rough estimate for the bitrate needed for GNC (guidance, navigation, and control) of an interplanetary spacecraft from Earth? I know it varies a great deal from case to case, but I want an ...
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How do those little dish antennas sticking out of the HST track their target independent of telescope pointing?

Almost all the photos I see of the HST show the two small dish antennas at the ends of the two long, opposing booms with the "top" one pointed straight ahead at 12-o'clock, and the "bottom" one at 3-o'...
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Can we talk to Pioneer 6?

My question is relatively simple in the essence that it takes few words to ask, but scientifically may be a nightmare. In 2000, the Goldstone Deep Space Communications Complex sent a message to ...
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Earth-Mars Radio Blackout: Is it possible to define an extended solar radius to solve this as a geometric problem?

Solar atmosphere causes difficulties in communication during opposition (when Mars is almost behind the sun w.r.t. Earth). The question is: is it possible to define an extended radius for the sun, ...
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Were the previous Mars landers configured to transmit beacons or data during descent?

The ExoMars Entry, Descent and Landing Demonstrator Module (EDM) Schiaparelli was configured to broadcast a UHF beacon throughout the entry, descent and landing phases using multiple transmitters and ...
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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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Why was Kepler's orbit chosen to continue to drift away from Earth?

The Kepler telescope was launched from Earth on March 7 2009 and placed in an independent orbit around the Sun, with a semimajor axis of 1.0132 AU, period of 372.53 days, and an eccentricity of 0.036 ...
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Why does there appear to be a 180-degree stereo microphone array outside the ISS?

I was watching a feed on the latest footage of Hurricane Matthew as seen from the ISS just now, relayed from NASA TV. Suddenly, I spotted something poking out of the ISS hull in the footage that ...