GRANDMA (Global Rapid Advanced Network Devoted to the Multi-messenger Addicts) operates a worldwide consortium of 20+ telescopes equipped with photometric and low‑resolution spectroscopic instruments to deliver near‑continuous, rapid follow‑up of transient astronomical events. Its centralized scheduling and standardized data‑reduction platform coordinates observations within minutes of alerts, providing uniformly calibrated light curves and spectra for the multi‑messenger community.
Funding
Funding not disclosed
Founders
Product
Problem
Time-domain and multi-messenger astronomy require rapid, coordinated observations of transient events, but individual observatories often lack the geographic coverage, scheduling flexibility, and standardized data pipelines needed to capture short-lived phenomena. This fragmentation leads to missed or incomplete data, hindering scientific analysis of events such as gravitational‑wave alerts, gamma‑ray bursts, and supernovae.
Solution
GRANDMA (Global Rapid Advanced Network Devoted to the Multi-messenger Addicts) operates a worldwide consortium of telescopes equipped with photometric and spectroscopic instruments to provide near‑continuous, rapid follow‑up of transient sources. The network integrates facilities ranging from 0.6‑meter to 2‑meter class telescopes across multiple continents, enabling observations within minutes of an alert regardless of the source’s sky position. A centralized scheduling and data‑reduction platform coordinates requests, optimizes target allocation, and delivers uniformly calibrated data to participating scientists. By aggregating observations from diverse sites, GRANDMA improves temporal coverage, increases signal‑to‑noise through combined datasets, and supports the multi‑messenger community in characterizing the electromagnetic counterparts of high‑energy events.
Target Audience
GRANDMA serves astronomers and research teams focused on transient and multi‑messenger phenomena, including those affiliated with gravitational‑wave, gamma‑ray burst, and supernova collaborations, as well as university and institute observatories seeking rapid follow‑up capabilities.
Features
- Global array of 20+ telescopes (e.g., OPD, SOAR, CFHT, TAROT, Zadko) providing continuous sky coverage
- Integrated photometry and low‑resolution spectroscopy capabilities on each node
- Automated alert ingestion and rapid scheduling system that triggers observations within minutes of a multi‑messenger alert
- Standardized data reduction pipeline delivering calibrated light curves and spectra to a central repository
- Real‑time web dashboard for monitoring observation status, data quality, and collaborative analysis
- Flexible access for external researchers through API and web portal, supporting joint proposals and data sharing