10 Million Alerts a Night: How to Ride the Rubin Observatory Firehose

🚀 Overview

The Vera C. Rubin Observatory is now flooding astronomy with more data than ever before. With its 10-year Legacy Survey of Space and Time officially underway as of July 2026, its 3.2-gigapixel camera scans the sky every clear night, identifying everything that moves, brightens, or shifts.

Want to be part of it? Here’s how.

🔎 Step 1: Tap into the Firehose (Via Brokers)

Rubin’s alert stream (which successfully fired off 800,000 alerts in a single night during February 2026 testing) is ramping up to generate up to 10 million transient events every night — too much for individuals to filter directly. That’s where community brokers come in.

These services subscribe to the Rubin firehose and let you build filters for the kinds of events you want to track.

Tools to get started:

ALeRCE Broker Signup
Lasair UK Broker

Build your own filters:

Focus your alerts on:

“Moving fast” objects (near-Earth candidates)
“Brightening suddenly” (transients or novae)
“Near my sky tonight” (local observing window)

Both platforms allow alerts to be sent via email, API, or web dashboard.

🧭 Step 2: Select & Track a Candidate

Once a moving object shows up in your filtered feed:

Confirm it hasn’t already been followed up.
Check MPC’s NEO Confirmation Page
Get the ephemerides (predicted sky path): Use JPL Horizons System
Check if it’s visible from your location tonight
Use Stellarium Web to simulate the sky

🛰 Step 3: Observe & Submit Your Data

Got clear skies and a telescope? You can now record astrometry (position measurements) and submit your observations.

To do:

Apply for a Minor Planet Center (MPC) Observatory Code
Format your data using ADES (Astrometry Data Exchange Standard)
Submit your measurements to the MPC for official inclusion

🧠 What You’re Helping Track

Your observations help “nail the orbits” of objects the Rubin system detects:

Main-belt asteroids – 5+ million
Near-Earth Objects (NEOs) – 100,000+
Kuiper Belt Objects (KBOs) – Thousands
Jupiter Trojans – Thousands

Many will require you — the amateur — to confirm and refine.

🛠 Your Toolkit

Alert filtering: ALeRCE, Lasair
Orbital confirmation: MPC Confirmation Page
Ephemeris lookup: JPL Horizons
Local visibility check: Stellarium Web
Submission + formatting: ADES Spec
Observatory registration: MPC Observatory Code

📍 Final Thoughts

The Rubin Observatory is the radar sweep—but it’s not complete without ground-level eyes.

Your telescope, your filter, your follow-up observation—that’s how we turn unknown blips into mapped objects with known trajectories.

This is the democratization of planetary defense.