#TITLE_ALTERNATIVE#

• Main Author: FARAH DINA (NIM : 10311018); Pembimbing : Prof. Dr. Taufiq Hidayat, DEVI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/20013
• Institution: Institut Teknologi Bandung

Titan is the largest satellite of Saturn and the only satellite that has significant atmosphere in the Solar System. Titan's atmosphere first suspected by Joseph Comas I Sola in 1903 and confirmed by Gerard Kuiper in 1944 with detection of methane. The Cassini-Huygens mission arrived in Saturn's orbit in 2004 has primary mission to study about Saturnian system (Saturn and satellite). The prime Cassini-Huygens mission (2004–2008) has taught us a lot about the chemical composition of the Titan's atmosphere. A good knowledge of the vertical profile, latitude distribution, and seasonal changes of various photochemical compounds has been gained in the Titan's atmosphere. Extended monitoring of the seasonal variations of composition is obviously an important objective to understand Titan's meteorology. This has also been a major motivation for extending Cassini operations up to Saturn's northern Summer solstice in 2017. <br /> <br /> ALMA (Atacama Large Milimeter/submilimeter Array) is an interferometer radio telescope at 5000 m altitude in Atacama, Chile. Consisting of 66 antenna radio telescopes observing at millimeter and submillimeter wavelengths. The abundances of acetonitrile (CH3CN) has been obtained using ALMA data in Titan's atmosphere. Increasing abundance were found from surface up to 800 km altitudes. The ALMA data of CH3CN are smaller than <br /> <br /> Marten et al. (2002) showing seasonal variation in Titan's atmosphere.