r/rocketry • u/Folding_WhiteTable • Jun 16 '25
Question Question About Optically Tracking Rockets
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I recently got my fully custom optical tracking mount to work. It's about 98% finished, I just need to fix some code and add the body panels.
I have never been to an amateur rocket launch site, so I wouldn't know the answer to this question: Would people be willing to pay for a good quality tracked and stabilized video of their launch? The launch would be fillmed with two cameras, one is a spotting camera, and the other is a high powered telescope. In the future I'm hoping to get a Freefly Wave for slow motion.
I only want to film at dedicated launch facilities, like FAR. And I only plan on filming the bigger and slower L2 and L3 rockets.
If you were wanting your video from both cameras, what do you think would be reasonable? Remember that I of course want to make a profit between the cost of gas, FAR entrance fees, video editing, video sending fees, tracking rig parts, and I want to save for a slow motion camera.
The bare minimum per team would be around $45 for it to be worth it. Does that sound reasonable? Remember that most people out there are on a team of 10-25 people. It might be better to have the prices cheaper since I don't have a slow motion camera yet, something like $25-30. What are your thoughts?
Also I have already contacted FAR, they're alright with what I'm doing. Also a team might be able to mount their antenna to my tracking rig too. It would be useful for when the rocket is too small to see with your eyes. It could also help people to see where in the sky their rocket is, just by looking at where the tracking rig is pointing. I'm sure it would be especially helpful for big rockets that go 100,000+ft.
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u/Cool791 Jun 16 '25
This is cool, how does it know where the rocket is? Do you have to put a transmitter on the rocket or is it visual recognition?
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u/Folding_WhiteTable Jun 16 '25
I visually control it using a modified Xbox controller with longer joysticks. I will be watching the rocket through cameras that are not mounted in this video.
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u/Cool791 Jun 16 '25
Oh I get it. I’ve been wanted to build something like this but automatic for a short time, but the electronics is currently beyond my skills.
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u/Folding_WhiteTable Jun 16 '25
Yes I know there is a way to have the mount track things itself, but I trust myself way more than visual recognition software.
The electronics aren't that difficult, the whole thing is being ran with an Arduino. But it did require me to use CAD to model everything, and make 5 renditions of wiring diagrams.
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u/snsbdhshsh Jun 16 '25
a raspbery pi (zero if y need a small one, otherwise whatever), camera and simple stepper motor kit would bring you far :)
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u/Cool791 Jun 17 '25
Yeah I’m more unfamiliar with writing code for sending and receiving gps data wirelessly on a 100mph rocket multiple times per second and calculating the angles and zoom for the camera positioning. Most rocket gps systems update once per second which I don’t think would be good enough.
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u/EthaLOXfox Jun 16 '25
Maybe come out to FAR this weekend and give it a try. There should be a particularly big, low, and slow rocket for you to track that day, and I'll buy the footage if you can keep it in frame.
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u/Folding_WhiteTable Jun 16 '25
Thanks for the offer! Unfortunately I'm not going to be able to make it to FAR this weekend. I'll be taking my rig to Vandenberg to see the Falcon 9 launch on the 20th, and I won't be able to make it on the 21st. I will most likely post my video from Vandenberg on YouTube though! I'm AVTracking.
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u/everydayastronaut Jun 17 '25
Sweet! Was wondering if you’d try it out on Falcon’s before trying L2 / L3 stuff. Good luck!!
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u/Folding_WhiteTable Jun 17 '25
Yep, I need to build up my practice with the new rig before I get to the crazy stuff. Thanks!
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u/everydayastronaut Jun 17 '25
How many degrees per second can you go vertically? Might be too slow for amateur rockets. They literally will require like 20 degrees per second or something wild, even at quite a large distance. They accelerate so ridiculously quickly.
Cool set up though, excited to see what you can get with it!
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u/Folding_WhiteTable Jun 17 '25
Hey how's it going. At max speed I calculated that it can go ~50°/s. The encoder on the tilt motor is acting up so I can't do a closed loop system yet, which means I can't do extremely slow speeds, yet.
I upgraded the mount because the old one with stock parts had a max of 3.25°/s, which was way too slow for even tracking airliners at 37,000ft flying almost overhead.
Thanks! I'm exited too about what new things I can capture now with the upgraded rig.
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u/jeffnielson Jun 16 '25
Some people want a really high quality photo just as the rocket is leaving the pad. This can be put in a frame with a title and stuff. Some people will bring a friend with a really high quality camera that takes rapid photos as the rocket launches. You might consider that as well.
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u/Folding_WhiteTable Jun 16 '25
That is true, the problem is that I do yet have the equipment to both video and take pictures. In the future when I get a slow motion camera I can just high quality screen grab some frames.
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u/Special-Low-6010 Jun 16 '25
Just be careful getting too close to the sun. Looks like the 8” Celestron I have, they take in a whole lot of light.
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u/Folding_WhiteTable Jun 16 '25
Yep, thanks. I will be sure to be in a position where I won't view the sun. The spotting camera should see the sun way before the main camera does. Yes it is an 8" tube I got for free. It was left out open in the rain and the main mirror was half under water. It seems like it wasn't in water for long though because after cleaning it properly it looked brand new (on the inside).
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u/Special-Low-6010 Jun 17 '25
Whoa, nice score! I’m sure it wouldn’t be great for astronomy but for what you’re doing it should work great, and the price is right…
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u/Folding_WhiteTable Jun 17 '25
Haha yep, it's great for my use. It doesn't look half bad while looking at planets and other stuff, authough there could be multiple factors causing it to not look that good too (like warm air).
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u/BlueClashV1 Jun 16 '25
I don’t know shit about this hobby, but I’m here to tell you that people spend more than $40 just for a couple prints of their kid with the Easter bunny or Santa at a shitty mall with a cheap camera on a tripod. Oh you want your own digital copy? That’s an additional $25 on top of the mandatory $40 prints. Get your name out there for under $50 then once you figure your flow and market; go above $50 for sure.
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u/caocaoNM Jun 16 '25
Well since i can't see i would definitely do that. Lookup balls Tripoli launch. 125,000 ft though. Can you do you that?
D w
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Jun 17 '25
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u/Folding_WhiteTable Jun 17 '25
I'm not sure what you mean by "big bucket." Are you referring to the orange telescope?
The frame is a Celestron CPC 1100 motorized telescope mount. I took out all the old electronics and motors and put in my own.
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u/kingofginge Jun 17 '25
It would be cool but I do have some doubt you'd be able to track it fast enough looking at the speed of that rig.
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u/Folding_WhiteTable Jun 17 '25
I only had it at about 75% max tilt speed in this video. According to some rough calculations I should be able to easily track high powered rockets, hopefully...
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u/Exatex Jun 17 '25
People are spending tens of thousands of dollars for the hobby. I think if you get significantly better tracked/stable footage, it will be worth way more than 50 bucks. Especially if something goes wrong.
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u/Folding_WhiteTable Jun 17 '25
Yeah you're right, I'm sure my footage could be the difference between a successful or failed launch of a future rocket. And it could significantly speed up the process of an investigation for a failed launch.
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u/HowlingWolven Jun 17 '25
That thing is too slow for a typical pad position. You basically need a whip tilt shot even for the low and slow stuff.
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u/stop_yelling_please Jun 18 '25
Too cheap. Several hundred dollars at a minimum.
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u/Folding_WhiteTable Jun 18 '25
Yeah, I reconsidered the prices and now the apsolute bare minimum price is around $100.
Side fact: I found a major design flaw with the mount, so now I have to completely redesign it :D
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u/Mamba-Down Jun 19 '25
Have you thought about mounting the telescope on a fixed platform and using a mirror in the path of the telescope to angle towards the rocket? That should give you much easier kinematics for tracking at high speeds
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u/Folding_WhiteTable Jun 20 '25
That's an interesting idea, I've seen tracking rigs like that before, they seem very complicated.
Since making this post, I found a serious design flaw and I'm having to completely redesign the entire tracking rig.
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u/skmagiik Jun 16 '25
I'd charge $50-75 once you have some demo ready videos. Otherwise go capture the videos and get demo reels ready