@inproceedings{9cbc01026c024190950572890acd209b,
title = "The PICTURE-C exoplanetary imaging balloon mission: second flight results and the transition to a new mission, PICTURE-D",
abstract = "The PICTURE-C balloon mission launched on its second flight from Fort Sumner, NM on September 28, 2022. During this flight, PICTURE-C, which consists of a 60 cm off-axis telescope feeding a vector vortex coronagraph, demonstrated the first high-contrast dark hole from an observatory in a near-space environment. The coronagraph achieved a modest broadband (20\%) contrast ratio of 5×10´6, with performance limited by dynamic pointing transients. The low-order wavefront control system achieved optical pointing stabilization of 1 milliarcseconds RMS for intervals of up to 30 seconds between these transients. This paper will summarize the second flight results and present the development path for PICTURE-D, the next generation direct imaging balloon mission.",
keywords = "balloon, direct imaging, exoplanets, fine pointing, high-contrast imaging, wavefront control",
author = "Mendillo, \{Christopher B.\} and Kuravi Hewawasam and Jason Martel and Thaddeus Potter and Sunip Mukherjee and Cook, \{Timothy A.\} and Supriya Chakrabarti and Frans Snik and Doelman, \{David S.\} and Dan Sirbu and Ruslan Belikov and Eduardo Bendek and Karl Stapelfeldt and Wolff, \{Schuyler Grace\}",
note = "Publisher Copyright: {\textcopyright} 2023 SPIE.; Techniques and Instrumentation for Detection of Exoplanets XI 2023 ; Conference date: 21-08-2023 Through 24-08-2023",
year = "2023",
doi = "10.1117/12.2677518",
language = "English (US)",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Ruane, \{Garreth J.\}",
booktitle = "Techniques and Instrumentation for Detection of Exoplanets XI",
}