Questions tagged [cubesat]

Type of satellite in the shape of a cube 10 cm on each side. Popular with academics and amateurs with a focus on off-the-shelf components.

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Why would photon pressure be needed to keep ParkinsonSAT Spinning?

This answer to Can a satellite work like a radiometer? says (in part): ...the US Naval Academy cubesat ParkinsonSAT was designed with four faces asymmetrical, with solar panels offset to one side ...
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What was the first satellite with COTS electronics?

Computers and memory, radios, cameras, light sensors, temperature sensors, accelerometers & gyros1, power supplies, power conditioners and converters and battery interfaces can all be put together ...
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What body of regulations (if any) would apply to a cubesat with an SDR on board?

For example: the FUNcube Dongle Pro+ is a USB Software Defined Radio receiver, or SDR. It provides a digitized 192kHz wide chunk of IF (intermediate frequency) via high speed USB interface. Generally ...
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Why is the cubesat structure so expensive?

The 1U cubesat structure is a 10*10*10 cm metal cube with frames. But it costs around 2000-3000€, which is really expensive. I've found it for example on these sites: https://www.isispace.nl/product/...
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What are the Basics of CubeSat Power Supplies and Systems?

I am going to go ahead and apologize for my ignorance surrounding this topic, as my background is Aerodynamics, and not Electrical Engineering. From what I understand, CubeSats typically generate ...
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Is there a widespread popular misconception of how expensive it is to launch a cubesat? [closed]

Sometimes one sees discussions about hypothetical CubeSats with impressive abilities that seem to be assume that CubeSats are cheaper to launch (not merely individually, but by mass) than larger ...
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How many sun sensors are required to find a cubesat's orientation

I have read how a sun sensor can help find the orientation of a spacecraft, but I wasn’t sure how many are required, e.g. if one is needed on each face of the Cubesat. (Any additional information is ...
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How many cubesat U's is CAPSTONE really?

Wikipedia sez: The orbiter is a 12-unit CubeSat but looking at the images in the new NASA video NASA 2021: Let's Go to the Moon I see artwork that shows Capstone as a square-based prism with the ...
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Example of CubeSat Systems Architecture and Software Architecture

For a school project I'm required to research into the engineering methodology and process for a CubeSat. As such, I'm inquiring into if anyone has an example software and systems architecture for ...
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Docking cubesat in orbit - is it possible?

Would it be plausible to launch two or more cubsat's into orbit, and then have them dock together, allowing them to pack on more hardware and even fuel, broadening their capability? If it is possible, ...
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Chance of ceramic board surviving re-entry on 3U CubeSat?

We're building a 3U CubeSat and have concerns about a ceramic PCB used in one of our experiments. Since ceramics have such a high melting temperature, we're not sure if the heat transfer during re-...
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Small satellite launcher to LEO dedicated launch vehicle [duplicate]

well today i was thinking, why nobody do something like the SS-520 but comercial? a small rocket entry dedicated to launch a cubesat, that probably go to have a lot of adventages and probably is realy ...
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Have any satellites had lights visible from Earth besides FITSat-1?

Clearly not a duplicate! of Why does the International Space Station have a downward facing light? This answer to How does the Starlink satellite shine? begins with Starlink (and other satellites) ...
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Closest distance at which cubesat (or comparable smallsat) has communicated with the Deep Space Network or any large 10+ meter dish? Cis-lunar ever?

Discussion below Will future deep space optical communications "ground stations" actually be in space, or on the ground? has got me wondering about the improbable situation where a giant ...
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How to get started with CubeSats

I am new both to CubeSats and to Stack Exchange. I have recently started studying and planning on how to build a CubeSat, as cheaply as possible. I have read some blog posts and watched some videos, ...
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Land a cubesat on the moon with ion engine

Say I have a 3U cubesat with a BIT-3 ion thruster, an iodine tank and landing legs. Can it land on the Moon with just an ion thruster?
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Have there been any square 4U (2x2) cubesats?

How much did each MarCO 6U cubesat weigh? suggests that the density of a MarCO 6U cubesat might be as low as 0.75 g/cm^3 whereas I think they are usually about twice that. That led me to speculate ...
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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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How are cubesat electronics protected against the effects of radiation in LEO?

I'm curious to know the various ways that cubesat electronics can be protected from the effects of cosmic rays or solar events while in LEO. How different are the components used in cubesats from some ...
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Microwave drive for cubesats

Theory: how is this? I was doing a lot of research about the EmDrive thruster, i find 50% papers says that it work and other 50% saying that the "thrust" is a product of the interaction with ...
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On determining nominal speed of reaction wheel

As part of a project, I am designing a reaction wheel system for a nano-satellite. I am now researching on how to determine the nominal speed of the reaction wheel. I have characterized the deadzone ...
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What are the most common practical design specifications for antenna in space?

I'm writing my thesis on antennas for small satellite applications (cubesats). Apart from the electrical specifications related to the particular application there are also several other "...
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How are remove before flight pin mechanisms realized in satellites?

According to the cubesat design specification electrical requirements (3.3.7 in revision 13) a Cubesat shall include an RBF pin: 3.3.7 The CubeSat shall include an RBF pin. 3.3.7.1 The RBF pin shall ...
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Do a significant proportion of cubesats (or any at all) have articulated solar panels/sails which can be pointed at the Sun?

It appears that for early cubesats the solar panels were simply fixed flat to the sides of the spacecraft, and even deployable panels were not part of early cubesat designs. Have a significant number ...
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Pointing accuracy and relevant manoeuvers CUBESAT

How do you calculate or determine the pointng accuracy of your CUBESAT in sunlit-part and eclipse-part modes? Also how do you determine the maximum roll/pitch/yaw angles and slew rate required in ...
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What is the largest proper cubesat?

The sizes of Cubesats are measured in "U" units of volume. Each U is nominally a cube of something like 10 to 12 cm on a side, depending on the specific deploying mechanism it's approved for....
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Is it possible to send a CubeSat to Saturn/Enceladus?

I was wondering if it is technologically possible to send a CubeSat/Nanosatellites or constellation of nanosatellites to explore the water vapor jets in the southern region of Enceladus in the Saturn ...
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Essential sensors for cubesat ADCS

We are building a 3U satellite to orbit Earth and measure space debris. Between gyroscope, GPS, IMU, magnetometer, Sun sensors and star tracker, which would be essential sensors for the ADCS? Or ...
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Magnetic Memory to Mars?

There seems to be (perhaps these?) a probe headed to Mars that has incorporated Magnetic Memory (MRAM) as an integral part of the mission. Is this a PR gimmick, or is MRAM actually the best technology ...
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What stole the INSPIRE cubesat launch opportunity, and will there be another?

Doing research for this answer about interplanetary cubesats, I watched the NASA Jet Propulsion Laboratory YouTube channel video CubeSats (live public talk) of a talk by Dr. Andrew Klesh, Chief ...
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How do phonesats stay cool?

To the question Can a smart phone function in space? this answer says Multiple android based phone satellites have been launched into space. (At least six according to Wikipedia). I haven't looked ...
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Do deployments of multiple cubesats obey proposed guidelines such as 20 seconds or more between deployments at 5 m/s or faster?

This answer to What can be done in future mass-cubesat deploys to make them “less irksome” to orbital space debris experts? links to Space Traffic Safety: A New Self-Governance Approach for the ...
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What can be done in future mass-cubesat deploys to make them “less irksome” to orbital space debris experts?

In the first group of questions below the block quotes, I've illustrated situations where a large number of cubesats are deployed at one launch (56 an 104 satellites) and it seemed to take quite a ...
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Why aren't solar collectors in space solar power concepts placed closer to the sun?

I've been thinking about space solar power for quite some time, as to how it could be more profitable than ground based solar power. From all the concepts that I have seen the main problem I always ...
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IRIS Transceiver for LEO Missions?

My professor really wants to know if the IRIS transceiver, which flew on MarCo, will be used in LEO. In fact so much that he doesn't accept "no" for an answer. I have searched for an example but found ...
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Reaction Wheels vs. Momentum wheels

I'm getting a bit confused on the difference between reaction wheels and momentum wheels. One of our objectives call for 3 momentum wheels for attitude control, with spin-up, spin-down, and reverse ...
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Orbit transfer trajectory options to the moon

I am working on a project for a lunar flyby using a CubeSat. I was wondering what kind of trajectory transfer options are present and which one would be best for a CubeSat? I'm aiming for a transfer ...
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Ejection Velocity of a CubeSat on Mars? [closed]

I am trying to decide whether or not I would need to add propulsion systems onto my 3U cubesat if it is being deployed in the Mars atmosphere. From what I've found so far, cubesats are typically ...
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Could the Electron launch a cubesat to Mars

Could the Electron in combination with it's kickstage deliver any meaningful mass to Mars, ie; a 2kg cubesat or is it unable to reach the required velocities even with no payload. Rocketlab are ...
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Would a small electron microscope in a cubesat work well in space at 400 km?

There is now an electron microscope in space! Suppose that once I win a lottery I can build a small, modest SEM column and put it in a 6U cubesat that opens one side to allow the electron optics to ...
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Challenges in using linux based COTS for Cubesat mission payloads

Most of the questions related to using linux is cubesat/space missions is for the flight computer. I understand that a RTOS is preferred over a full blown linux for a flight computer. However I am ...
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Rocket to launch 8 cubesat to LEO at an equidistant distance

I am working on a project, which consists of the launch of 8 cubesat 1U to LEO (Low Earth Orbit) and I started working on the launch part, the idea of ​​the project is to be as cheap as possible, the ...
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How will NASA's TROPICS cubesats be inserted into their three orbital planes and proper phasings?

Rocket to launch 8 cubesat to LEO at an equidistant distance reminded me that I'd never asked this question. NASA's TROPICS 3U cubesat constellation hasn't been launched yet, so there's still time to ...
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Cubesat, smallsat, or probe 'auteurs' - do any exist?

Most cubesats, other smallsats, and small probes are designed, funded, and launched by small teams (often associated with education/research institutions) at the smallest. By "auteur", I mean a ...
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X-Band range and data

In summary I am working on a network consisting of 8 cubesat 1U that will be at an orbit altitude of 850Km. The question is that I am working on communications, the idea is that this network of ...
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How do I calculate what antenna I need for my cubesat?

If I want to make a communication satellite, like MarCO, what formulas do I need to calculate the perfect antenna? Is there a difference between the X-Band and the classic UHF? If the cubesat is ...
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Calculations needed to full-design a rocket

Suppose I want to put a cubesat in Titan's orbit (saturn's moon). and I want to calculate what rocket power I need, how do I calculate it? Where do I begin? total mass of the probe or delta-v needed? ...
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Have amateur satellites ever experimented with optical communications?

I meant to include the more recent amateur satellites such as cubesats, and also amateur radio satellites - where the heritage of amateur satellite building (mostly) has its roots. Have amateur ...
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Yet another OSIRIS! Has the DLR/GOM Space test of the cubesat optical communications link happened yet?

Speaking of "all things OSIRIS" I just ran across the OSIRIS optical communications system for cubesats and smallsats. OSIRIS (Optical Space Infrared Downlink System) highly compact optical ...
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RCS or Reaction Wheel for a 30kg cubesat

I am working on the design of a cubesat, it weighs approximately 30 kg and I am doing the Navigation and Guide Control system. I was wondering if I had some blueprint for some RCS or Reaction Wheels ...