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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Has there ever been a deliberate "Find A Satellite" challenge? Actually, could there be?

Companies often offer rewards for finding security issues in their products or their own IT systems, and hackathons have a long history. I'm just wondering if there has ever been a deliberate ...
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7 votes
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Do deployments of multiple cubesats generally 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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6 votes
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Cubesat half duplex communication stack

My understanding is that in half duplex transceivers, you are only able to either transmit or receive. In Cubesats using half duplex comms, which part of their communications stack is performing the ...
4 votes
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How well does wood thermally perform in space applications?

Wondering if there are any studies about using wood as a material for insulation in spacecraft? My specific question is does anyone have any experience with it working as an insulator? I remember a ...
3 votes
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124 views

Are LHCP L-Band antennas for Cubesats available?

I am designing a cubesat to carry out GNSS reflectometry or GNSS-R. To collect the earth reflected signals, I need a nadir pointing array of patch antennas, with Left Hand Circular Polarisation (LHCP) ...
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3 votes
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What is actually happening in this full mission rehearsal of CAPSTONE's propulsion hardware?

NASA Ames's feature CAPSTONE’s CubeSat Prepares for Lunar Flight says CAPSTONE will use a hydrazine-fueled propulsion system during most of its three- to four- month journey to the Moon. This line of ...
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3 votes
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241 views

How much would it cost to launch a 0.5U Satellite?

I have seen the figures for 1U, 3U and 12U Satellites such as those provided here, but I have been unable to find pricing for the launch of a single 0.5U or 0.25U satellite. I have seen many academic ...
3 votes
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Cubesat/Nanosat dispensers/deployers costs

I’ m looking for informations about dispensers/deployers equipement costs and associated launch costs, espacially for 12U configurations and over. I’ve got price information on Tyvak 12U Deployer in a ...
3 votes
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303 views

Why put both Orbex and Rocket Labs on adjacent launch pads in Scotland?

update 2: BBC's May 11, 2022 Scottish spaceport's prototype rocket unveiled update 1: There's some recent and potentially helpful information in NASA Spaceflight September 4, 2019 UK Spaceport at ...
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2 votes
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Solar sail for a 3U cubesat: do we have to buy one or can we design one?

We are working on a conceptual design for a 3U CubeSat with solar sail propulsion; we aren’t actually building one or buying one. However we still need to make decisions like whether to build our own ...
2 votes
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Antenna for receivers

I am designing a CubeSat 6U in which I am using Software Defined Radio with SIGINT capability as my payload. The payload has 3 reception ports and 2 transmission ports and hence transceiver or ...
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2 votes
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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 ...
2 votes
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200 views

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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2 votes
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Suggestions required on radiation tolerance solutions

I wanted to know what methods of increasing radiance tolerance for the microcontroller and memory devices for a Cubesat exist. We have read about methods like having dual CPUs but are there any ...
2 votes
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149 views

Optimal Thruster Layout For Cubesat

I am working on a simulation of a Cubesat for rendezvous. Using the Clohessy-Wiltshire equations I calculate delta-v. Now that I know the thrust needed for operation, I would like to know how to ...
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2 votes
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For a cubesat mission piggybacking on a Red Dragon, what are the tradeoffs for launch early and late in the launch window?

SpaceX will be launching two Red Dragons in 2020, one at the beginning of the launch window (July) and one at the end (September). For a CubeSat mission that would have to piggyback on one of the two ...
2 votes
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Detection of micrometeoroid impacts on the lunar surface using thermal imaging?

For a student project we are looking into the possibility of detecting micrometeoroid (micrometer-size) impacts on the lunar surface with cubesats equipped with a thermal imaging device. We have found ...
2 votes
1 answer
198 views

How will JAXA's space elevator-testing cubesat experiment work?

The Infobae article Japón inicia hoy el ambicioso proyecto de construir un ascensor espacial which translated from Spanish into English by Google says Japan begins today the ambitious project to ...
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1 vote
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Local space radiation measurement by 1U CubeSat

As far as I know, the general influx of ionizing radiation received by a CubeSat in LEO is mostly trapped protons and electrons, solar protons, galactic cosmic radiation, and neutrons. If the CubeSat ...
1 vote
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59 views

How to compute orbital decay of a cubesat?

I'd like to compute the orbital decay of a cubesat in LEO/VLEO due to atmospheric drag. Here is what I've done: Based on the Satellite Orbital Decay Calculations document coming from the Australian ...
1 vote
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94 views

what is the cheapest transmitter for a cubesat?

I'm building a CubeSat and it's halfway built. I've got a launch for February 2023, and I need a transmitter. If I don't get a transmitter on this thing, the CubeSat will ride to orbit and immediately ...
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Guidance and control inputs in autonomous satellites

I would like to know which are the standard navigation data available on a small satellite (in LEO). In particular, I'm trying to understand which inputs I should consider for the Guidance&Control ...
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1 vote
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What is a good SNR value for a chipsat in LEO using bpsk?

My team and I are working on a chipsat and we are planning on launching it to LEO, we've also planned using bpsk. However our use case is a bit different, all we need once it is in LEO is a ...
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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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How will NASA's software for autonomous navigation in cis-lunar space be tested; what information is processed, what outputs evaluated?

note: it's been a year and a half and Capstone is scheduled to be launched soon, so perhaps there is more information available now? NASA news item NASA Funds CubeSat Pathfinder Mission to Unique ...
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1 vote
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Major topic headings for lunar CubeSat mission design planning?

I am working on a project to design a complete mission for a lunar CubeSat. Assuming that the launch segment is already covered and I need to focus on the spacecraft design. I wanted to know what ...
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Was any data actually transmitted between OSCD and ISARA in the recent CubeSat lasercom test?

Two CubeSats (the OCSD and ISARA CubeSats) recently demonstrated technology for on-orbit sat-sat laser communications. All the information I have been able to find doesn't indicate if the test ...
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What is the estimate price for small ion thrusters on cubesats?

I can't find much about price for ion thruster and I read from somewhere that most ion thruster are off the rack product. I just need the rough estimate price for a small ion thruster and the closest ...
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Distributed computational power-sharing and orbital supercomputer

I had an interesting conversation last night with a nanosatellite engineer about how much computational power is required in a nanosatellite constellation and if it's necessary. I had an idea or a ...
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Use or tests of multimode optical fiber for cubesat battery charging or datalink while in storage, or waiting to launch?

the idea of POF or power over fiber is to couple a moderate amount of solid state laser light, say a few hundred milliWatts or even several Watts (or potentially more, but it gets more challenging), ...
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1 vote
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Attitude of the upcoming "Orbital Reflector"; will it result in good visibility?

There's a new (passive solar) orbital reflector, called the Orbital Reflector. While Mayak (Маяк) was a crowdfunded project at Moscow State Mechanical Engineering University and the Humanity Star ...
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1 vote
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What is the sequence of the main spacecraft and CubeSats separation during Falcon 9 launch?

I'm curious about timeline and the procedures related to the spacecraft separation during Falcon 9 (and perhaps other rockets if such information is available) launch. Let's assume a mission with one ...
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A hybrid micropropulsion system for CubeSats

I am curious about how much potential would a hybrid (electric & chemical) micropropulsion system have for CubeSats. The chosen propellant is water due to its non toxic nature, cheap cost and high ...
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