Skip to main content
All Reviews
AstronomyMust Read
intermediate

Deep operator neural network applied to efficient computation of asteroid surface temperature and the Yarkovsky effect

Zhao, Shunjing et al. (2024)

Published
Nov 1, 2024
Journal
Astronomy & Astrophysics · Vol. 691
DOI
10.1051/0004-6361/202451789

At a GlanceAI

DeepONet predicts asteroid surface temperatures ~100,000 times faster while preserving ~1% accuracy for Yarkovsky studies.

SummaryAI

Computing asteroid surface temperatures accurately is essential for understanding thermal properties and orbital changes, but repeated high-fidelity simulations are often too slow. This study applies a deep operator neural network to emulate those temperature calculations, achieving about 1% average error at a computational cost five orders of magnitude lower. The speedup makes broad multidimensional thermal-parameter studies much more practical. As an initial demonstration, the model is used to estimate Yarkovsky-driven orbital evolution for asteroids including Phaethon and 2001 WM41.

Method SnapshotAI

The authors use a deep operator neural network surrogate model for asteroid thermophysical calculations and embed it in N-body orbital simulations.

BackgroundAI

General familiarity with asteroid thermophysics, machine learning surrogate models, and orbital dynamics is helpful.

A pioneering application of DeepONets to asteroid thermophysical modeling, this work shows how neural operator architectures can dramatically accelerate surface temperature calculations while preserving high accuracy. Its methodology paves the way for efficient coupling of AI-based thermal models with orbital dynamics, making it an important contribution to the growing use of scientific machine learning in planetary science.

VC