an orbital model suited to the time window close to the perijove. This model shows that an anomalous acceleration of a few mm$/$s$^2$ is also present in this case. The chance for overlooked conventional or possible unconventional explanations is discussed.
author:
- |
    L. Acedo[^1], P. Piqueras and J. A. Moraño\
    Instituto Universitario de Matemática Multidisciplinar,\
    Building 8G, $2^{\mathrm{o}}$ Floor, Camino de Vera,\
    Universitat Polit$\grave{\mbox{e}}$cnica de Val$\grave{\mbox{e}}$ncia,\
    Valencia, Spain\
bibliography:
- 'acedobiblio.bib'
title: A possible flyby anomaly for Juno at Jupiter
---

[**Keywords:**]{} Juno mission, Tidal perturbations, Jupiter’s gravity model, Flyby anomaly

Introduction {#intro}
============

A key step towards interplanetary space exploration was achieved by the theoretical work of Minovitch [@Minovitch1; @Minovitch2] and Flandro [@Flandro]. In the early sixties of the past century these authors proposed the use of the gravitational assist manoeuvre to increase the energy of spacecraft in the Solar System barycenter, allowing for fast reconnaissance missions to the outer planets from Jupiter to Neptune [@Butrica]. Since then, many gravity assist, flyby or slingshot manoeuvers (as this manoeuver can be equally be named) have been programmed in the course of missions to the inner planets (Mariner, Messenger), outer planets (Pioneer, Voyager, Galileo, Cassini, New Horizons, Juno) or asteroids 