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How to Make a CubeSat

orbitalindex.com

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Re: How to Make a CubeSat

#11
post #10

I'm unfamiliar with the innards of the cubesat industry, but one question I have had for a while is are there any players out there offering CaaS (Cubesat as a Service)? E.g. A company sends up a bunch of cubesats, each with a variety of instrument suites, and then essentially timeshares them on some web platform.

Yes? We are trying to do exactly that, but haven't raised enough money yet.

Re: How to Make a CubeSat

#12
post #4
post #3

Earlier quoted context omitted.

Something like 100-200k for a small one, which are rather limited in abilities and most of interest to amateur radio nerds. There are several companies that sell partially built kits with aluminum chassis, PV cells and battery/charge system.

Why aluminum chassis rather than carbon fiber or titanium?

Needs to be conductive and strong enough. Aluminium works just fine for that.

Re: How to Make a CubeSat

#13
post #2

What’s the ballpark price these days for building and launching a basic cubesat?

Depends on what you're doing. Last I checked a 1U cubesat cost around $50k to launch, but there also also says to get free or cheaper launches depending on the payload. Speaking of the payload, that will greatly impact the build cost. I imagine you could put together the Cubesat equivalent of Sputnik for like $100, then another $200 or so for the FCC paperwork. If you want to send up interesting sensors, build someth…

Thanks, that’s pretty neat. I have neither the fun stuff budget nor the purpose to justify cluttering up space for a few years, but it’s cool to see satellites drawing closer to “serious but amateur” price levels.

Re: How to Make a CubeSat

#14
post #10

I'm unfamiliar with the innards of the cubesat industry, but one question I have had for a while is are there any players out there offering CaaS (Cubesat as a Service)? E.g. A company sends up a bunch of cubesats, each with a variety of instrument suites, and then essentially timeshares them on some web platform.

I would imagine the problem with this model is that there isn't actually a whole lot you can do if you rent time on a satellite. Given an orbiting sensor suite, all you can do is log the sensor data and send it back to earth - you can't really run experiments or anything. So the company that owns the satellites can do that, and then try to . . . sell the data? That's basically the business model. That works for satellite imaging companies, but what other sensors might that work for? And how many paying customers could you reasonably have?

Re: How to Make a CubeSat

#15
post #10

I'm unfamiliar with the innards of the cubesat industry, but one question I have had for a while is are there any players out there offering CaaS (Cubesat as a Service)? E.g. A company sends up a bunch of cubesats, each with a variety of instrument suites, and then essentially timeshares them on some web platform.

I think these folks did that: https://www.kubos.com/

Re: How to Make a CubeSat

#16
post #10

I'm unfamiliar with the innards of the cubesat industry, but one question I have had for a while is are there any players out there offering CaaS (Cubesat as a Service)? E.g. A company sends up a bunch of cubesats, each with a variety of instrument suites, and then essentially timeshares them on some web platform.

I would imagine the problem with this model is that there isn't actually a whole lot you can do if you rent time on a satellite. Given an orbiting sensor suite, all you can do is log the sensor data and send it back to earth - you can't really run experiments or anything. So the company that owns the satellites can do that, and then try to . . . sell the data? That's basically the business model. That works for satel…

You can run ML algorithms on imagery in space, and do a bit more than just downlink sensor data. There is already one satellite that works as such an experimental platform:

https://www.groundstation.space/esa-funds-12-new-experiment-...

Re: How to Make a CubeSat

#17
post #10

I'm unfamiliar with the innards of the cubesat industry, but one question I have had for a while is are there any players out there offering CaaS (Cubesat as a Service)? E.g. A company sends up a bunch of cubesats, each with a variety of instrument suites, and then essentially timeshares them on some web platform.

It's not good enough to just send something up and have at it as a customer. Any High school with enough money for an off the shelf kit can do that, snap a picture and write home for the bragging rights. But due to the constraints of energy, volume, distance and other factors you'll just end up with a quality result no better or worse than what you could get from a much cheaper weather balloon just with less logistics to worry about.

Until rockets get a lot cheaper, (come on Starship, deliver on your promise) to get a result that is commercially viable from such a timeshare option, you need to tailor your payload to deliver an outcome that can be actually desired. Everything is a trade off, and until the satellites get 5-10x cheaper to launch again, you're under very tight constraints and you truly have to trade off every other aspect (wavelength, sensor type, resolution, power level, communication budget, mass budget, geographic spread/location, orbital height) to get one good specific outcome in a 10x10x10cm form factor. Yes, you can fit mobile phone electronics in these things. But they are usually 200km+ away from what they need to measure. Until consumer off the shelf electronics can give you the sensor readings you need from an entire country distance away, the requirements is still going to need an act of true cutting edge engineering if your goal is to operate for-profit.

This is not impossible mind you, the industry will continue to mature. But it's a world of the future, not a world of the present.

Re: How to Make a CubeSat

#18
post #10

I'm unfamiliar with the innards of the cubesat industry, but one question I have had for a while is are there any players out there offering CaaS (Cubesat as a Service)? E.g. A company sends up a bunch of cubesats, each with a variety of instrument suites, and then essentially timeshares them on some web platform.

I think these folks did that: https://www.kubos.com/

yeah, but they pivoted to ground-station based software instead of true in flight services and got bought for their ground component piece of the equation. The business plan as originally that entailed didn't work out. Just too early to the game IMO rather than a bad idea. But the market dynamics that they were under in the 2016-2019 era are still today mostly the same market dynamics in 2022.

Re: How to Make a CubeSat

#19
post #2

What’s the ballpark price these days for building and launching a basic cubesat?

The other figures are correct. However, the cost to build cubesats are coming down rapidly. I work at a not for profit called isomer space which builds cubesats. We originally were looking at 50k-100k for ours, but there are a few open source projects now that provide design files to manufacture your own for way cheaper. For us, we are able to get the costs down to under 10k by doing it all in house. This is including multiple prototypes. A single satellite itself is probably 3-4k though for us. If you’re curious, the big open source project in the space is called PyCubed. A bunch of university teams use their designs now because the hardware is relatively affordable.

As far as launch prices, I think the 50k figure given is accurate, but only through companies that resell / broker space launches. Getting your own launch outside of a reseller / broker would cost more. For instance, if you buy from SpaceX's rideshare program directly it can cost 1.2 million. This is because SpaceX's base pricing starts at a 200kg payload. Anything that weighs less is still charged at 1.2 million. However, if you go through a third party that resells the launches then it can be 50k or lower. I know I have seen one as low as 20k for a 1U launch. The main reason why its cheaper is a combination of economy of scale (launching lots of cubesats at once) and/or VC funding. The best launch prices in general tend to come from startups who are heavily subsidizing the launches with VC money.

Also, if anyone is curious about cubesats or our work in general feel free to AMA.

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