Vera C. Rubin Observatory Prompt Products

Start of Alert Production: February 2026

Expected availability of the Prompt catalogs and images: see the Early Science Program webpage.

Prompt Products include the alerts, catalogs, and images generated by real-time Rubin Science Pipelines processing of observations obtained with the LSST Camera.

Important

This website is currently under development.

Data Policy: Some Prompt Products are public and some proprietary: see Data access for details.

Overview

Observational progress, live status reports, and known issues.

• Overview
  • Observations
  • Known issues

Data products

Descriptions and schemas for the alert packets, catalogs, and images.

• Data products
  • Alert packets
  • Catalogs (coming soon)
  • Images (coming soon)
  • 3I/ATLAS image stamps

Data processing

Summary of the data processing steps that generate the data products.

• Data processing
  • Prompt Processing
  • Single-frame processing
  • Template generation
  • Difference image analysis (DIA)
  • Source Association
  • Filtering and Reliability Scoring
  • Alert generation
  • Solar System processing (SSP)

Data access

How to access Prompt Products through community alert brokers and the Rubin Science Platform.

• Data access

Tutorials

Tutorials demonstrating how to access and analyze data.

• Tutorials
  • 101.1. Navigate the Alerts Viewer interface
  • 101.1. Alert retrieval service
  • 201.1. Alert packets
  • 101. LSSTCam visits database
  • 102. Rubin Schedule Viewer
  • 103. 3I/ATLAS image stamps
  • Accessing alerts via the Antares client
  • Rubin First Look Solar System object discoveries
  • 101.1. Remote access to the Alert Retrieval Service
  • Log of major tutorial updates

Citing Prompt Products

How to cite Rubin Observatory and the Prompt data products.

• Citing Prompt Products