NOAO >   Observing Info >   Approved Programs >   2018A-0139

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Program Information for 2018A-0139


PI: Michael H Wong, UC Berkeley, mikewong@astro.berkeley.edu
Address: Department of Astronomy, 601 Campbell Hall #3411, Berkeley, CA, 94720-3411 USA

CoI: Imke de Pater, UC Berkeley
CoI: Glenn Orton, CalTech-JPL
CoI: Gordon L Bjoraker, NASA Goddard Space Flight Center
CoI: Andrew Stephens, Gemini Observatory
CoI: MEGAN BARNETT, UC Berkeley

Title: Time-Critical M-band Mapping of Jupiter --- Synergy with Juno, Hubble, VLA, Keck, and IRTF

Abstract: Gemini-N NIRI global maps of Jupiter at 5 �m will provide a crucial component in a tightly focused observational campaign supporting Juno's microwave and infrared investigation of the atmosphere. Members of our small team are leading key support observations, each with great independent scientific value. The overarching goal of the joint campaign is to understand the 3D flow in Jupiter's atmosphere, with Hubble data measuring horizontal flow, and VLA / Keck / IRTF / Gemini data tracing vertical flow. In particular, NIRI will use clearings in the upper cloud decks (which are bright in M-band) to trace locations of downward dynamical flow. These coordinated observations are highly time-sensitive. We propose full-disk 5-�m maps with NIRI to coincide with four perijove passes in 2018A and one in 2018B (under NOAO Long Term status). The maps will play a key role in a worldwide effort to provide global context for Juno atmospheric data, which covers only a narrow north-south swath during the perijove pass of each 53-day orbit. Our lucky imaging data will be used to quantify errors in Juno microwave retrievals of O/H on Jupiter, caused by inhomogeneity in the atmosphere. We adopt a new, more time-efficient observing strategy compared to previous semesters.

Program Type: Long Term/Solar System

Scheduled Nights:
Run 1 (2018A):  GEM-NQ/NIRI -- 7hrs band 2 (GN-2018A-Q-202 )


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2018A-0139

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