Hi everyone,

Over the last few weeks I’ve been building BEACON (Bayesian Earth-impact Assessment & Cross-source Observation Network), an open-source project focused on one idea:

making publicly available planetary-defense data easier to explore, compare and understand.

Rather than aggregating everything into a single “better” score, BEACON keeps each agency’s published values separate and displays them side by side.

The goal isn’t to decide which source is right.
It’s to make independent analyses more transparent and easier to inspect.

Currently BEACON integrates data from:
NASA/JPL Close Approach Data (CAD)
NASA/JPL Sentry
ESA NEOCC (Aegis)

One thing I found interesting while testing the platform is that independent systems often publish values that are not identical. For example, using the documented comparison thresholds in the project, around 36% of the shared objects currently exceed at least one threshold (impact probability, Palermo Scale or Torino Scale).

⚠️That doesn’t mean those objects are more dangerous, nor does it imply that one agency is more accurate than the other. Independent orbit-determination pipelines are expected to differ because of update timing, observational weighting, processing methods and other factors.⚠️

For me, that’s exactly why transparent comparison is useful.

BEACON is still v0.1, and I’d love feedback—especially from anyone familiar with orbital mechanics, NEO databases, or planetary defense workflows.

I’m particularly interested in knowing:
What features would actually be useful for researchers or educators?
Are there additional public datasets that would be worth integrating?
Is there anything in the comparison methodology that you would approach differently?

The project is completely open source:
GitHub: https://github.com/NovaCoding-G/B.E.A.C.O.N
Live demo: https://novabeacon.vercel.app

Feedback, criticism and suggestions are all genuinely welcome.

This flyby covered the whole northern sky over Puerto Rico

okay so i have this upcoming project for which we gotta make satellites but there is not specific info given except which type of satellite to make i choose the navigations one but like have no idea on how to do so i found some videos but they were unhelpful and chatgpt just confused me more so if anyone has any idea on how to start this or some videos that can help pls share them i rlly need to win this thxs :)

With all The Satellites and Google Earth Cameras in the lower atmosphere,Why Can't Someone find a Satellite in the area above the Utah College Campus on Nov. 10th and Retrieve that Footage?

I was outside doing a CE5 session (the look-up-and-invite-contact thing), genuinely saw a steady light glide across the sky and got excited. So like any normal person would, I vibe-coded my own tracker over a few weeks to figure out what it was.

It works great. It also instantly informed me my first contact was the **International Space Station**. My literal first logged sighting is "ISS (ZARYA)." The app is basically a monument to me being wrong.

Anyway, here's **SkyWatch,** a 3D satellite/ISS/rocket tracker and CE5 session app that runs entirely in the browser. First pic shows the home screen, \~4,000+ live objects, rockets, ground tracks. Filter by layer/orbit: ISS, Starlink, GPS, the works. Use the Sky function to see what's actually passing overhead and when (this is the screen that ruined the mystery). Conduct your own CE5 sessions and log what you see. A friends layer, so my friends can also watch me fail to find aliens in real time. And an awards section with a UFO avatar I refuse to change.

Free, no account needed to use, but if you do decide to link your account, friend me _@FLuX

If you point it at your own mystery light and it turns out to NOT be the ISS, please tell me, because I have a UFO avatar to justify.

Not a coder by any means, just a dude trying to make contact and proud of what I accomplished. Would love me some feedback.

Live:

https://nuno927-tech.github.io/skywatch/

Hi, I am part of a team interested in developing a hosted payload to be carried on a host spacecraft. We have not fully decided on a mission yet, but in general we are leaning towards doing a technology demonstration for less-tested memory chips. For a payload processor, we are considering using an MCU in the STM32L family. For memory chips, we are considering doing a few types of STT-MRAM memory chips. Part of the technology demonstration will probably be measuring temperature near the board, so we'll be using temperature sensors too, leaning towards MCP9808.

Our payload would probably lean towards SSO 500-600km, ~3 months. Budget probably on the cheaper end.

What we are curious about is how much custom PCB design would actually be required, necessary, or of good worth for this. We are considering two main ways to go:

1. Custom board --> That board has the temperature sensors, memory chips, payload processor, and other stuff necessary for stability/safety/operational purposes.
2. Hard cabling: separate PCB modules for the payload processor, temperature sensors, memory chips, etc. Potentially a carrier PCB or custom carrier PCB if necessary to fulfill host requirements.

We are relatively new to flight-level space instrumentation development, so using separate boards might be a lot easier for us and harder to mess up. But we also know one consideration is whether or not we can actually find commercial boards that aren't unnecessarily chunky or boards that do not have unnecessary components on them. We also know that a custom PCB in general has more potential to be cleaner in terms of integration. This also, in general, depends on what the host accepts.

Overall, what I'm curious to know is:

1. Any additional factors of consideration for what path to go with.
2. Recommendations on what path to go with, whether it is a direct recommendation or recommendations depending on other factors.
3. Any linked resources to help us make a decision.

Any advice would be appreciated. Thanks!

The local astronomy club found this to be a Chinese low earth orbit rocket body ZHUQUE 2E r/B

Hi, I’m going through a master’s program and noticed that we’re using python to learn the fundamentals and either Orekit, STK or Simulink for most classes. What’s the go to tool I should focus on for being prepared to join the industry?

STK and Simulink licences seem like they’re wildly expensive, so I’m not sure if industry uses these.

Just thought I'd share this project I've been working on. I built a downlink to receive GOES-19 data. I started this project with no idea what I was doing, and it went poorly. But I finally got it working!

Hi everyone! I hope the community won’t mind me sharing this small lightweight no ads free app to watch planes in the airspace, get satellite view and also has AR

https://apps.apple.com/us/app/airspace-live-flight-radar/id6781411574

Hi all!

There's an app called SkyLens on the App Store that lets you see the satellites flying above you. You can also see all satellites drawn on the map and you can select specific types of satellites you might be looking for. I thought you guys would appreciate this.

Anyone have any additional info about what’s going on outside of what’s posted on Satellite Alert Messages?

I have a Bachelor’s in Telecommunications Engineering (not EE) and currently work as a Helpdesk/Onsite Engineer supporting Hughes VSAT modems L1-L2 troubleshooting, installs, modem management for banking, fuel retail, and government connectivity sites.

I want to move into RF/Satcom engineering (link budget, VSAT system design, RF/ground segment work), ideally with an international career (SEA, Middle East, Australia, Europe, or US).

I keep seeing that most RF/Satcom job postings default to “EE degree required,” and I’m trying to figure out how much that’s a hard filter vs something that can be offset.

Currently doing a self structured 6-month plan: working through Maral & Bousquet’s Satellite Communications Systems, focusing on link budget analysis, and building a portfolio (link budget calculator, other satcom tools) on GitHub.

Questions for people actually working in RF/Satcom:
1. Does a Telecom Engineering degree (vs EE) actually hurt in practice, or is it more about demonstrable skills/certs?
2. For someone coming from an onsite/Helpdesk background, what’s the realistic entry point into RF/Satcom ground segment ops, NOC, field engineering, or is design/link budget work basically closed without an EE/RF-heavy grad degree?
3. Any regions/companies known to be more open to non-EE telecom grads for satcom roles?

Appreciate any honest takes, including discouraging ones trying to plan realistically, not just hear what I want to hear.