Astrometric Reconnaissance of Exoplanetary Systems (ARES) - I. Methodology validation with HST point-source images of Proxima Centauri

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Table 1

Log of observations used in this work.

Observing program	PI	Filter	N_exp × t_exp	Epoch
GO-12985	Sahu	F555W	4 × 1 s	October 2012– March 2013
GO-13466	Sahu	F555W	10 × 1 s	October 2013–April 2014
GO-13847	Sahu	F555W	43 × 1 s	April 2015–January 2018
GO-16653	Bedin	F467M	6 × 5 s	August 2022–March 2023
GO-16983	Bedin	F467M	4 × 5 s	October 2023–February 2024
GO-17399	Bedin	F467M	4 × 5 s	July 2024–February 2025

Notes. F555W data were taken in subarray mode, with only chip 1 used. F467M observations were taken using the full array and Proxima was imaged either on chip 1 or 2, depending on the detector’s position angle.

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