#TITLE_ALTERNATIVE#

• Main Author: MUMTAHANA (NIM: 10308019); Pembimbing : Dr. Taufiq Hidayat, FARAHHATI
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/15634
• Institution: Institut Teknologi Bandung

Presently, several radio telescopes have been and being constructed as a part of multi-wavelength development program at the Bosscha Observatory. One of them is the 6 m radio telescope, namely Teleskop Radio Hidrogen. This telescope is aimed at observing the frequency of neutral hydrogen at 1420. 4MHz (or wavelength of 21 cm) and will be developed as one of elements of radio interferometer array at the Bosscha Observatory in the future. As a new instrument, it is important to report the progress of this telescope construction and its characterization. Many components were set up and ready to use. Using both spectral and continuum modes, observational test were made during the last six months. Since the motor drive and its controller of the antenna were not accomplished yet, observations were made using drift scan mode to obtain various performance of the receiver, the RAS SpectraCyber, and a noise source as a calibrator. Some spectra of hydrogen line originate from the galactic plane have been successfully recorded with good quality. To obtain a map of the sky at this frequency, we conducted observations at elevations slightly tilted from zenith in the direction of meridian transit. The results are a small map of the sky covering about 12 degrees in declination and 12 hours in Right Ascencion. This suggests that a mapping program in the near future must be conducted.