NEOSSat Observations of Three Transiting Hot Jupiters

TL;DR

This study demonstrates NEOSSat's capability to observe transiting hot Jupiters, confirming its potential as a valuable tool for exoplanet follow-up and characterization from space.

Contribution

First use of NEOSSat for exoplanet transit observations, showcasing its ability to refine orbital parameters of known exoplanets.

Findings

Successfully confirmed orbital properties of TESS exoplanets

Demonstrated NEOSSat's suitability for exoplanetary science

Improved orbital ephemerides of observed targets

Abstract

The Near Earth Object Surveillance Satellite (NEOSSat) is a Canadian-led 15 cm Earth-orbiting telescope originally designed to detect asteroids near the Sun. Its design is however also suitable for the observation of exoplanetary transits of bright stars. We used the NEOSSat platform to perform followup observations of several Transiting Exoplanets Survey Satellite (TESS) targets, both as a demonstration of NEOSSat capabilities for exoplanetary science and improve the orbital ephemerides and properties of these exoplanet systems. We are able to recover / confirm the orbital properties of such targets to within mutual error bars, demonstrating NEOSSat as a useful future contributor to exoplanetary science.