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Julian5

Building a satellite

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On 3/23/2018 at 5:00 AM, Julian5 said:

Update!

SMD Pcb arrived yesterday and I finished soldering it, Took some time but was easier than I thought and I'm pretty happy with the result. Now I just need to do some more testing on it and continue programming. Anyways here are some pics comparing with the older version and with a 1 franc coin for size.

 

 

Looks good, definitely room for some more improvement id say though. My main concern with this setup is the RF side. Range will be severely limited with an antenna that small on such a low power radio. I would say you would be lucky to see a few hundred feet at best line of sight. You really would need a larger antenna and a more powerful transmitter ( 100mw) you you want to realistically gather data at altitude with it. I would try and pick up something like a cheap rtl-sdr usb dongle to use as a low cost spectrum analyzer to see what you are doing.  RF can be a tricky thing to get right, the more testing you can do in that regard the better. When dealing with low power and long range, every little thing can effect your signal down to the traces on the pcb and the brand and placement of components.


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Posted · Original PosterOP
On 3/28/2018 at 7:19 AM, bob345 said:

Looks good, definitely room for some more improvement id say though. My main concern with this setup is the RF side. Range will be severely limited with an antenna that small on such a low power radio. I would say you would be lucky to see a few hundred feet at best line of sight. You really would need a larger antenna and a more powerful transmitter ( 100mw) you you want to realistically gather data at altitude with it. I would try and pick up something like a cheap rtl-sdr usb dongle to use as a low cost spectrum analyzer to see what you are doing.  RF can be a tricky thing to get right, the more testing you can do in that regard the better. When dealing with low power and long range, every little thing can effect your signal down to the traces on the pcb and the brand and placement of components.

Yes indeed, I'm using this TX on purpose though since I anything above 25mw is strictly illegal in Spain and I don't even own the license for anything under that. However, the next version will feature a more powerful chip similar to the c1011, If you watched the video I'm currently using a cheap SDR radio to actually receive the signal. 

 

On 3/30/2018 at 3:11 AM, ShredBird said:

Indeed, RF can be tricky.  Let me know if you need any help on that part.  I can help you design the correct microstrip config etc...

I will most likely need help, there's a lot of stuff to do and a lot that can go wrong haha! I'll keep you updated but don't expect major updates until end of may since I'm currently working on other stuff and exam season is arriving, Next step, however, is PCB optimisation (try and make it smaller and neater), increase radio power, work on the code and maybe even add a couple more sensors.

 

Thank you all for the help and support though! really appreciated. 


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Posted · Original PosterOP

Little Update!

I recently presented the project along with a self-sufficient solar plane I designed in a Spanish robotics competition and actually came first! I got to showcase the project on national television and met a bunch of cool people like the co-founder of Arduino (Video he made with me will be up on the Arduino channel soon). I also interchanged info with a bunch of people that were interested in the project so I might be able to get some sponsors onboard with the project. I'm just finishing my finals next week and as soon as I'm done I'll start designing V3 hopefully getting it closer to 2x2cm.


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4 hours ago, Julian5 said:

Little Update!

I recently presented the project along with a self-sufficient solar plane I designed in a Spanish robotics competition and actually came first! I got to showcase the project on national television and met a bunch of cool people like the co-founder of Arduino (Video he made with me will be up on the Arduino channel soon). I also interchanged info with a bunch of people that were interested in the project so I might be able to get some sponsors onboard with the project. I'm just finishing my finals next week and as soon as I'm done I'll start designing V3 hopefully getting it closer to 2x2cm.

Absolutely excellent news!  Congratulations on your success!

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Posted · Original PosterOP
On 20/5/2018 at 6:10 AM, ShredBird said:

Absolutely excellent news!  Congratulations on your success!

Thanks!


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Posted · Original PosterOP

Looking for people to help out (Read below)

Been a while since the last update but a lot of stuff has happened, mainly research and contacting people. There is a lot of stuff to explain but summarized as much as I can, I changed over the mother ship architecture to a pocketqube (5x5x5cm) and contacted a bunch of people who worked on previous satellites and companies for possible authorizations.

 

Long boring text ahead explaining in detail:

Realistically if we want to get something up in space we need to launch it using a standardized formfactor, the most common picosatellite formfactor is the cubesat  (10x10x10cm) but recently the pocketqube has gained popularity since it is currently the smallest launchable formfactor. Therefore our small sprites will be launched from the pocketqube mothership.

So, now I had that in mind, I wanted to see just how far this could be theoretically taken. So here is the long boring process of emailing a bunch of people. But in summary I contacted Alba orbital and Gauss that quoted me 25k for the launch and 16k for the launch respectively (Q4 - 2019), these launches are currently purely theoretical until there is a working prototype built and funding is another issue but I could invest some money in making a crowdfunding campaign though once again this is purely theoretical, right now the focus is finishing a prototype by november.  I also got in contact with Stuart from the 50$ sat to discuss some issues with RF. Solar cell provider has also been found (Trisolx) and they can supply triple junction gallium arsenide cells. Ultimately I am in contact with Tom  (CEO Alba Orbital) discussing the approval issues with launching such small satellites from a pocketqube, will hopefully be contacting people soon to see if we can actually launch 2x2x0.2cm boards from a 5x5x5cm satellite. The radio protocol we will be using is LoRa due to its low power consumption and long range, it can also be picked up with 20$ worth of parts.

 

This is the current to do list in the next month.

- Pass my HAM amateur radio operator license (needed to transmit to satellite for tests etc)

- Sort out the regulations involved with launching sprites

- Design MPPT/Power management board (Looking for people to help, simple circuit design to check my work)

- Start working on the code for the satellite (Looking for people to help here too, couple things to work out)

- Design pocketqube frame and deploy mechanism (Start looking for CNC workshops that can mill the part)

 

That's it for now, seem like its really advanced from the beginning and I cant wait to start working on a prototype, research & design for now!


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Posted · Original PosterOP

Quick update for anyone still reading these.

The team has been established and prototype development is already in progress, an open source github repo is up at https://github.com/juliantech5/FossaSat & https://github.com/FOSSA-Systems

A webpage is up at fossa.systems , more info can be found on there but it's still missing a lot of details though most frequent updates will be posted on there.

 

Thanks!


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Project Frug 50$ Water loop

 

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Posted · Original PosterOP

For anyone else still reading,

We are starting to receive funding from Sponsors to hopefully reach our goal of 25k, We have nearly finished manufacturing our engineering model and the software aspect of things are done thanks to our software engineer. 

We will go to a satellite conference in the Europan Space agency Astronomy Center this September to show off our satellite and hopefully find some contacts, Hopefully we get administrative stuff moving to start requesting launch approval and frequency coordination from the International Telecommunications Union.

 

38631886_656952648023800_1228875681954267136_n.thumb.jpg.b624114b46a77c39924ead1f5bf6db89.jpg


Elemental 

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Old Build (sold for 290€)

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Intel i3 540 @ 3.9ghz (On stock cooler, Hits 80c max) - 8gb ram - 500w power supply - P7H55-M LE  120gb SSD - Talius Drakko case

Project Frug 50$ Water loop

 

Laptops

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1 hour ago, Julian5 said:

For anyone else still reading,

We are starting to receive funding from Sponsors to hopefully reach our goal of 25k, We have nearly finished manufacturing our engineering model and the software aspect of things are done thanks to our software engineer. 

We will go to a satellite conference in the Europan Space agency Astronomy Center this September to show off our satellite and hopefully find some contacts, Hopefully we get administrative stuff moving to start requesting launch approval and frequency coordination from the International Telecommunications Union.

 

 

That's awesome


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Posted · Original PosterOP
1 minute ago, BuckGup said:

That's awesome

Thanks mate, if we actually get this up in orbit and it works I will be quite happy :D (aka shit my pants)

Just a lot of designing and maths for the moment but I'll make sure to keep you guys updated!


Elemental 

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Old Build (sold for 290€)

Spoiler

Intel i3 540 @ 3.9ghz (On stock cooler, Hits 80c max) - 8gb ram - 500w power supply - P7H55-M LE  120gb SSD - Talius Drakko case

Project Frug 50$ Water loop

 

Laptops

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13" Macbook Air - Alienware m14x r2 -  2009 15" Macbook Pro (I was give all of these and would never buy them myself)

 

 

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On ‎18‎/‎08‎/‎2018 at 4:53 AM, Julian5 said:

For anyone else still reading,

We are starting to receive funding from Sponsors to hopefully reach our goal of 25k, We have nearly finished manufacturing our engineering model and the software aspect of things are done thanks to our software engineer. 

We will go to a satellite conference in the Europan Space agency Astronomy Center this September to show off our satellite and hopefully find some contacts, Hopefully we get administrative stuff moving to start requesting launch approval and frequency coordination from the International Telecommunications Union.

 

38631886_656952648023800_1228875681954267136_n.thumb.jpg.b624114b46a77c39924ead1f5bf6db89.jpg

Those pcbs are so cool.Hope you could succeed.


There is mostly only one CORRECT way to do it, while many ways to do it CORRECT

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Posted · Original PosterOP
On 15/9/2018 at 3:51 AM, Nicholas Smith said:

Those pcbs are so cool.Hope you could succeed.

Thanks Nicholas! European Space agency talk is on Monday and we are close to signing a launch for summer of 2019. Seems amazing how we went from a little PCB designed on Sunday evening to a working prototype possibly going to space, I would have never imagined that this would have ever grown to where it is now  :D

We are still looking for help by the way!

 

I'll keep you guys informed. Thanks,

Julian


Elemental 

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Old Build (sold for 290€)

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Intel i3 540 @ 3.9ghz (On stock cooler, Hits 80c max) - 8gb ram - 500w power supply - P7H55-M LE  120gb SSD - Talius Drakko case

Project Frug 50$ Water loop

 

Laptops

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13" Macbook Air - Alienware m14x r2 -  2009 15" Macbook Pro (I was give all of these and would never buy them myself)

 

 

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Posted · Original PosterOP

Gave the talk along with a workshop on open source aerospace missions at the European Space Agency, We are having future meetings with them and a couple universities so it seems there is general interest! The engineering model is finished with deployable solar panels and will be launching this week on a weather balloon to test the telecommunications.

DSC_0485.thumb.JPG.42e809060ac4c159408791801ebca9c0.JPGDn3tjZQX0AMcyT4.jpg.00bbb39cc96cfc9aee0b85339acc4e1a.jpgDSCF5548.thumb.JPG.0cd993183b82793f1f2f50e59bdde161.JPG

Right center in the middle row (holding the satellite)

 

On 4/11/2017 at 4:02 PM, Ryan_Vickers said:

I saw the title and was like "no... that can't possibly be what I think it is" but sure enough...

 

Sounds like you're not at this stage yet but any thought as to how you'll get it in orbit?  balloons are great for going straight up but the stuff they carry tends to come straight back down after they pop :P

 

Funny to think this time last year we where joking around on launching and now We are a couple weeks away from launching a launch contract with a major launch provider :)  


Elemental 

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Old Build (sold for 290€)

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Project Frug 50$ Water loop

 

Laptops

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13" Macbook Air - Alienware m14x r2 -  2009 15" Macbook Pro (I was give all of these and would never buy them myself)

 

 

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17 minutes ago, Julian5 said:

 

Very cool! :D

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Nice!


“Remember to look up at the stars and not down at your feet. Try to make sense of what you see and wonder about what makes the universe exist. Be curious. And however difficult life may seem, there is always something you can do and succeed at. 
It matters that you don't just give up.”

-Stephen Hawking

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Posted · Original PosterOP

Have not updated anything on here for a while! Orbital launch has been signed with Rocket Labs, we are set to launch in Q3 of 2019 into a 385km SSO orbit. We will most likely create a kickstarter in the coming months in order to fund the remaining launch costs, keep an eye out :)

 

Monthly Blogs on https://fossa.systems/blog/


Elemental 

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Old Build (sold for 290€)

Spoiler

Intel i3 540 @ 3.9ghz (On stock cooler, Hits 80c max) - 8gb ram - 500w power supply - P7H55-M LE  120gb SSD - Talius Drakko case

Project Frug 50$ Water loop

 

Laptops

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13" Macbook Air - Alienware m14x r2 -  2009 15" Macbook Pro (I was give all of these and would never buy them myself)

 

 

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On 12/29/2018 at 8:52 AM, Julian5 said:

Have not updated anything on here for a while! Orbital launch has been signed with Rocket Labs, we are set to launch in Q3 of 2019 into a 385km SSO orbit. We will most likely create a kickstarter in the coming months in order to fund the remaining launch costs, keep an eye out :)

 

Monthly Blogs on https://fossa.systems/blog/

Congrats!  The satellite I worked on just went up on that last Rocket Labs launch!  Good luck with the remaining hurdles! :)

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This sounds like a great project and I would love to see it get off the ground and into space.


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On 11/4/2017 at 6:23 PM, Julian5 said:

you will be surprised to know its actually just wire, The Arduino senses electricity coming from it. However, it is not very accurate and a more precise voltage sensors would make it more precise. It's actually an electromagnetic interference detector or EMF. Shielding the Arduino from the wire sensor is also an issue to avoid interference 

 

Here is a video about one:

 

I did something very similar using just BC547 transistors.

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Posted · Original PosterOP
On 1/11/2019 at 4:44 AM, ShredBird said:

Congrats!  The satellite I worked on just went up on that last Rocket Labs launch!  Good luck with the remaining hurdles! :)

Great Stuff! We are number 8 for launch in q3 of 2019.

 

On 1/12/2019 at 4:12 AM, ThatDoggo said:

This sounds like a great project and I would love to see it get off the ground and into space.

Thanks!

 

6 hours ago, YiGiT353 said:

I did something very similar using just BC547 transistors.

Pretty easy to do! Final satellite does not use it but it's a cool concept.


Elemental 

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Intel i5 6500 @3.8ghz - 8GB HyperX - 600w Apex PSU - GTX 1060 G1 GIGABYTE 6GB - s340 Black - 240gb Toshiba Q300 - Cooler master TX3i - MSI z170-A PRO.

Old Build (sold for 290€)

Spoiler

Intel i3 540 @ 3.9ghz (On stock cooler, Hits 80c max) - 8gb ram - 500w power supply - P7H55-M LE  120gb SSD - Talius Drakko case

Project Frug 50$ Water loop

 

Laptops

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13" Macbook Air - Alienware m14x r2 -  2009 15" Macbook Pro (I was give all of these and would never buy them myself)

 

 

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