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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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how to procure a Launch vehicle for injecting a cubesat into LEO at LOW COST?

Me and my team are working on sending Cubesats just beyond the Karmann line. For which we obviously need a launch vehicle and would like to procure one or if possible build one. If any aerospace ...
Souvik Banerjee's user avatar
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How many cubesat U's is CAPSTONE really?

Wikipedia's CAPSTONE(spacecraft); Spacecraft says: 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 ...
uhoh's user avatar
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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 ...
Andrea's user avatar
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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 ...
uhoh's user avatar
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Are there any modern cubesats or smallsats that have relied only on magnetotorquers for attitude control?

This comment got me thinking... Question: Are there any modern cubesats or smallsats that have relied only on magnetotorquers for attitude control, sans reaction wheels or thrusters? Ideally an ...
uhoh's user avatar
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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 ...
Clex's user avatar
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How do Tom & Jerry (CANYVAL-X) measure their alignment with a distance source accurately?

According to the Spaceflight 101 article CANYVAL-X – Tom & Jerry: CANYVAL-X is a two-satellite CubeSat mission aiming to demonstrate a Vision Alignment System that could enable a virtual ...
uhoh's user avatar
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Telecommunication CubeSats

Does anyone know of any company that is using CubeSats for telecommunication services or is this a new idea not yet implemented into the commercial arena?
ShaiPerson's user avatar
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Did the MarCo cubesats photograph each other or the Centaur stage from which they were deployed?

The screenshot below is an artists rendering of two MarCo cubesats and a Centaur upper stage moving together in space. I'm wondering if either of the MarCos photographed the other or the upper stage ...
uhoh's user avatar
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What calculations should I do to go from LEO to the moon with an ionic motor?

my question is, what calculations should I do to be able to go from LEO to the lunar orbit? If this were done, two of these thrusters would be used https://www.cubesatshop.com/product/ifm-nano-...
Valentino Zaffrani's user avatar
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New Terran 1 rocket - launch costs for Cubesat

I was reading about the Terran 1 rocket and the fact that the founding company managed to secure the launch site at Cape Canaveral. Pretty amazing story on its own but then I looked at prices and they ...
Thomas's user avatar
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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 ...
uhoh's user avatar
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What are some objective that CubeSat's can complete/have completed?

I've been seriously considering looking into launching a CubeSat and it seems that the least of my worries would be design constraints. The money is less of an issue than the "why". There's plenty of ...
Magic Octopus Urn's user avatar
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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 ...
Valentino Zaffrani's user avatar
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432 views

Impact of having two antennas on link budget calculations

I'm working on link budget of a cubesat mission that needs to have two dipole antennas that are perpendicular to each other. I want to know if having two antennas affect the link budget? losses, and ...
Behnoosh's user avatar
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Design Software Recommendations

I'm currently working on "base stones" of future cubesat mission and I'm doing some research for designing or simulation of cubesats. Software that I found on google costs enormous price and I'm ...
Ondrej Sarnecký's user avatar
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How will Astrocast's upcoming IoT (Internet of Things) network in space work? What kind of "things" will be networked?

The Space Daily article Astrocast signs contract with GomSpace Sweden to deliver propulsion systems says in part GomSpace Sweden - a subsidiary of GomSpace Group AB, has received an order from ...
uhoh's user avatar
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Bundle Protocol/Licklider Transmission Protocols needed for TM case in cubesat as per CCSDS standard?

As per CCSDS standard, there is no ARQ mechanism present for Telementry(TM) case. Based on spec it will be taken care by upper layer protocols. So in this case, can we use simple FTP for Cubesat? or ...
codeflow's user avatar
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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 ...
Golden_Hawk's user avatar
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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 ...
Astronaute's user avatar
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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 ...
Chicca's user avatar
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CubeSat's ConOps implementation as a FSM with thread management [closed]

Can anyone shed light on this for me: How would you implement a Concept of Operations of a CubeSat as a Finite State Machine that manages each thread's priority? Thank you !
Joaquim Silveira's user avatar
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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 ...
Aamod Varma's user avatar
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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 ...
ikrase's user avatar
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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 ...
John's user avatar
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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 ...
Knudsen Number's user avatar
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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 ...
newbie125's user avatar
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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 ...
Ondrej Sarnecký's user avatar
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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), ...
uhoh's user avatar
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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 ...
uhoh's user avatar
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1 vote
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Interface CSP over UART on PIC 24FJ256GA110 with no operating system [closed]

I am using a PIC 24FJ256GA110 without an operating system. Is there any reference code I can use as a starting point to write the driver for the GOMSpace transceiver? Also if someone has advice on ...
J. Allam's user avatar
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0 answers
439 views

Can I use Arduino for a cubesat? [duplicate]

we are building a cubesat and we have considered using an arduino as the computer. However I'm not sure if that is smart. I mean will the arduino get damaged in some sort? Is arduino suitable to do ...
hind's user avatar
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What are relevant missions for CubeSats? [closed]

My high school is planning to launch a CubeSat to the ISS, but we need a mission. A majority of students involved are interested in the engineering aspect of constructing it, and we don't know what it ...
march.april.mae's user avatar
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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 ...
Dominik Roszkowski's user avatar
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0 answers
214 views

How to build an antenna to receive VHF or UHF? [closed]

I am trying to build a cubesat using a Raspberry Pi. I am now figuring out how to communicate with it. As far as I know, I understand I will have to use VHF or UHF to do so. How do I decide on the ...
Ritesh Ksheersagar's user avatar
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1 answer
410 views

How long would a satellite fly on a sun-synchronous 600km orbit?

How long would it take for a 12U cubesat on a circular polar orbit with altitude 600 km to fall down to 500 km? Please, add references/calculations to your answer.
Tarlan Mammadzada's user avatar
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1 answer
193 views

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, ....
Valentino Zaffrani's user avatar
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1 answer
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Are there any new breakthrough propulsion systems for nanosatellites?

In terms of either thrust or delta v, what is the next big thing?
Schlusstein's user avatar
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Why are two frames of reference needed for attitude determination?

I am trying to understand the global workings of attitude determination, specifically in space, but I don't understand why two reference frames are needed to establish that? Let's say you have a ...
ohiliouh's user avatar
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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? ...
Valentino Zaffrani's user avatar
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1 answer
1k views

How do I calculate pointing and stability requirements for a platform (Cubesat, UAV) if we know sensor details (IFOV, Integration Time etc)?

My project involves developing a multi-mission modular satellite bus. I have couple of payloads under consideration and have the necessary sensor details. Based on that I am trying to figure the ...
Siddhesh Naik's user avatar
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1 answer
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What are ways to store hydrogen for electric propulsion without a heavy pressure vessel?

This comment points out that any advantages of using low-mass ionized atomic hydrogen (i.e. protons) for electric propulsion if you had a fixed acceleration voltage and plenty of electrical power ...
uhoh's user avatar
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What are the absolute maximum dimensions of a proper 6U cubesat? Does ASTERIA comply?

At one point there were formal specifications for cubesat dimensions. I know it's a bit larger than precisely $10m \times 10n \times 10$ centimeters, where $m=1, 2$ and $n=1, 2, 3$ but I am not sure ...
uhoh's user avatar
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How to "turn off" ADCS system to monitor orientation after firing MDT's?

I've been tasked in a hypothetical mission of determining if an Attitude Determination and Control System (ADACS) can be "turned off" during MEMS Digital Thruster (MDT) firings so that the ...
Blake Fielder's user avatar
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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 ...
JD_PM's user avatar
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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 ...
ikrase's user avatar
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-4 votes
2 answers
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Russell's Teapot - has it been done yet?

Has anyone sent a china teapot into orbit, to "solve" the long standing Russell's Teapot argument? I realize this is a "joke" endevour, but with the advent of easily available ...
Thomas's user avatar
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-6 votes
2 answers
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What regulations, agreements, or other forces can help mitigate "PrankSats"? [closed]

comment: I've used a somewhat innocuous abstraction of 'pranks in space' below, but there's no end to the trouble that could be caused and the increasing ease with which a state (nation or otherwise) ...
uhoh's user avatar
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