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All Journal Warta Ardhia : Jurnal Perhubungan Udara Warta Penelitian Perhubungan Langit Biru: Jurnal Ilmiah Aviasi Warta Penelitian Perhubungan Indonesian Journal of Aerospace
Indriyanto, Toto
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Aerospace Engineering Astronomy Automotive Engineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Education Engineering Environmental Science Transportation

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Journal : Indonesian Journal of Aerospace

 1 
Correction Maneuver Optimization to Maintain The Local Time of Lapan-A4 Satellite Zuhri, Muhammad Rizki; Poetro, Ridanto Eko; Indriyanto, Toto; Faturrohim, Luqman
Indonesian Journal of Aerospace Vol. 21 No. 2 (2023): Indonesian Journal Of Aerospace
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/ijoa.2023.723

Abstract

In order for a satellite to achieve a sun-synchronous orbit (SSO), it must have a nodal precession rate equal to the revolution rate of the Earth around the Sun. However, sun-synchronous satellites generally encounter significant perturbations, which lead the local time of the satellite to drift gradually. In this research, the author analyzed potential maneuvers to maintain the local time of an SSO satellite for 5 years of operation of LAPAN-A4 satellite. The analysis was conducted by simulation using GMAT (General Mission & Analysis Tools) software with the LAPAN-A4 satellite as a case study. Furthermore, this research also attempted to find the optimum maneuvering period for each potential maneuver. The results showed that the RAAN correction maneuver is ineffective. It was also found that the most optimum maneuvering plan obtained from this research was a semi-major axis correction maneuver with 4 month maneuvering period with a particular correction targeting strategy.
Fuel Efficiency Comparison of PBN and ILS Approach Procedures at Sam Ratulangi Airport M'Azzuri, Banni Yulia; Indriyanto, Toto; Sembiring, Javensius
Indonesian Journal of Aerospace Vol. 22 No. 2 (2024): Indonesian Journal Of Aerospace
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/ijoa.2024.8968

Abstract

This study evaluates the efficiency of approach procedures at Sam Ratulangi International Airport-Manado by comparing Required Navigation Performance (RNP) under Performance-Based Navigation (PBN) with the Instrument Landing System (ILS) as a conventional procedure. A simulation using the BlueSky ATM Simulator was conducted with 30 aircraft instances for each approach, utilizing real-time FlightRadar24 speed data to ensure operational realism. The analysis focused on three key metrics: distance flown, time spent, and fuel consumption. Results show that implementing of PBN procedures reduces distance flown by 15%, flight time by 15% and fuel consumption by 14% compared to ILS, demonstrating improved operational efficiency. This research provides a quantitative assessment of PBN systems’ effectiveness in optimizing approach procedures, supporting aviation sustainability, and reducing operational costs.
Co-Authors Andri Kristanto Faturrohim, Luqman Hafizhuddin, Hafizhuddin Haidar, Muhammad Farras Javensius Sembiring, Javensius M'Azzuri, Banni Yulia Malik, Rahadian Maulana Poetro, Ridanto Eko Zuhri, Muhammad Rizki