Search arXiv⌕ Search

arXiv · 2610.34719

Data-driven acquisition offset correction for telescope networks using machine learning and sensitivity analysis

Abstract

Reliable target acquisition is essential for maximizing observing efficiency, particularly for robotic telescope networks that operate across many sites, instruments, and environmental conditions. Although these facilities generate large volumes of operational and observational data, acquisition procedures often continue to rely on static pointing models and manual adjustments by observatory staff. These approaches can be effective, but they may not fully capture changing behavior associated with telescope configuration, observing conditions, instrument state, or other time-dependent effects. We present a data-driven machine-learning pipeline for automatically predicting and correcting telescope acquisition offsets, demonstrated using archival operational logs from the Las Cumbres Observatory network. Our approach applies both traditional machine-learning methods and deep-learning regression models to learn relationships between measured acquisition offsets and a range of observing, telescope, and instrumentation conditions. By using historical performance data, the pipeline is designed to complement existing pointing models and reduce the need for repeated manual correction. We also present an open-source, Dockerized software service that makes the trained models accessible through a browser-based graphical interface. The service is intended to support straightforward, real-time use by observatory staff while remaining portable across computing environments. Together, the prediction pipeline and deployment framework provide a practical path toward more adaptive, automated, and data-informed telescope acquisition.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Jackson Zariski, Kaitlin Kratter, Mark Bowman, Nandini Dharwadkar. 2026-10-26. Data-driven acquisition offset correction for telescope networks using machine learning and sensitivity analysis. https://arxiv.org/abs/2610.34719

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

Modeling Dependence Structures in Astronomical Multi-Band Time Series Data via Multi-Output Gaussian Processes

Modern astronomical time-domain surveys routinely collect multi-band light curves that provide complementary information about the physical processes governing source variability. Although various multi-output Gaussian process (GP) models have been applied in different astronomical contexts, the statistical and astrophysical implications of their dependence structures have received comparatively limited attention. In this work, we examine three existing approaches to modeling cross-band dependence within a common multi-output GP framework and investigate how their underlying assumptions affect statistical inference and astrophysical interpretation. These include covariance-based, stochastic differential equation (SDE)-based, and latent-process approaches, which differ mainly in how cross-band dependence is introduced. The covariance-based approach directly specifies cross-band covariance functions to characterize dependence, whereas the SDE-based approach specifies joint temporal dynamics, with cross-band dependence arising from coupled dynamics or correlated driving processes. The latent-process approach represents dependence through shared stochastic processes and their transformations, which can reflect physical relationships among multiple light curves. We demonstrate the practical implications of these modeling choices through applications to multi-band active galactic nucleus light curves and emission-line reverberation mapping. Rather than advocating a universally preferred approach, this work provides guidance for selecting dependence structures according to scientific objectives and clarifies how these choices influence the statistical characterization and scientific interpretation of multi-band stochastic variability.

astro-ph.IM↗

A Framework for Evaluating Forward Contamination Risk for Bio-ISRU Microorganisms

NASA planetary protection policy seeks to avoid inadvertent forward contamination of celestial bodies and backward contamination of Earth during space exploration. For Mars missions, it has historically focused on sterilization of landers and rovers. Current policy provides no framework for assessing the forward contamination risk of missions that deliberately include living organisms and must not be sterilized, such as a human crew, agriculture, or biotechnology for manufacturing and life support. We propose the PRIM (Propagation Restricted, Inert on Mars) framework to evaluate the forward-contamination risk posed by known organisms. Building on the biocontainment literature and probability-of-contamination model, PRIM bounds the ability of an organism released from a worst-case off-nominal event to sustain growth on the Martian surface at a probability under P_c <= 10^-4 using independent single-stressor propagation assays. We apply the PRIM framework to two engineered Mars biological in situ resource utilization chassis organisms, using low water activity and carbon starvation to qualify them for low forward contamination risk even at high bioburden, and outline how to extend the assays to phototrophs and anaerobes. PRIM offers a path to flight-qualify living organisms for Mars based on laboratory assays rather than bioburden alone. This enables biological life support infrastructure for a sustained presence on Mars while keeping forward contamination risk demonstrably low.

astro-ph.IM↗

Overview And Present Status Of The 4-m International Liquid Mirror Telescope (ILMT)

The International Liquid Mirror Telescope (ILMT) is an inexpensive optical instrument with a diameter of 4 metres, entirely dedicated to astronomical surveys. Its scientific programmes include the detection and study of transients, variable objects, asteroids, comets, low surface brightness galaxies, space debris, etc. The telescope achieved its first light on 29 April 2022 and was officially inaugurated on 21 March 2023. It has been operating regularly since October 2023 and continuously observes the sky passing through the zenith using the SDSS $g^{\prime}$, $r^{\prime}$, and $i^{\prime}$ filters in a narrow band of the sky ($22.3^{\prime}$) centred around the equatorial declination of $+29°21^{\prime}41^{\prime \prime}$. Here we report on the astrometric and photometric performance of the ILMT and summarise the main results obtained since the BINA3 workshop. A great way to raise public awareness is to build a scale model of a liquid mirror telescope. General guidelines for doing so are provided.

astro-ph.IM↗