## 1 Introduction
A careful review of the current state of the research field reveals a growing body of literature exploring the application of Agile methodologies and MBSE in various engineering domains, including aerospace and satellite systems. Key publications [28; 29; 30; 31]have shown the benefits of adopting these approaches, highlighting their effectiveness in managing complexity, mitigating risks, and improving project outcomes. This shift towards agility in engineering processes is promising for streamlining workflows, optimizing resource allocation, and improving overall project outcomes, particularly within the dynamic context of small satellite development [1]. In this paper, we explore how an integrated approach to Agile Systems Engineering and Project Management can address the unique challenges faced by small satellite engineering teams, and in particular for the \"3 ColStar\" mission. Through a detailed examination of the \"3 ColStar\" mission, developed collaboratively by the Colombian Aerospace Force (COLAF), Colombian universities, and other international institutions, our study demonstrates the application of Agile methodologies and MBSE in the optimization of the development process. For instance, small satellite missions operate in dynamic contexts where it is crucial to adhere to \"frozen specifications\". This ensures stability and consistency despite the quickly changing requirements due to technical breakthroughs and evolving user needs. Agile techniques enable adaptations to these changes through iterative development cycles and constant stakeholder interaction [32]. Additionally, small satellite projects are often limited in terms of funding, personnel resources, and timescale. Iterative planning, frequent deliverables, and prioritization are examples of Agile approaches that help to improve resource allocation and maximize efficiency in managing limited resources [33; 34]. Furthermore, the complexity to integrate multiple subsystems in small satellites while maintaining compatibility, functionality, and reliability presents considerable technical obstacles. Agile Systems Engineering stresses incremental integration and continuous testing, therefore decreasing the risks involved with subsystem integration [35]. Moreover, many small satellite projects require geographically scattered teams from several locations, countries, and time zones. For this, Agile techniques encourage good communication, collaboration technologies, and remote work practices to guarantee smooth coordination and alignment among distributed teams [36; 37]. The literature supports the efficacy of Agile Systems Engineering (SE) and Project Management (PM) in tackling these issues. Agile approaches improve flexibility, responsiveness, and adaptation in engineering projects, particularly in the aerospace and satellite sectors [5; 38; 39]. Teams can reduce risks, expedite development timeframes, and improve overall project outcomes by implementing Agile principles tailored to the unique needs of tiny satellite missions. For instance, [PERSON] [5] reported that using Agile methods reduced the time between mission concept definition and launch, and in our case, Agile methods were useful to reduce the mission design time. The use of these methodologies facilitates accelerated time-to-market time frames, reduces costs, and fosters innovation within the small satellite industry, paving the way for future advancements in CubeSat technology. The benefits of integrating Agile methodologies with MBSE are substantiated by both empirical evidence and theoretical insights from the existing literature. [PERSON] et al. (2019) [40] documented a 25% reduction in development time for a small satellite project utilizing Agile practices compared to traditional methods. Similarly, another study [41] reported a 30% cost reduction in aerospace projects that implemented Agile and MBSE approaches. Furthermore, [PERSON] et al. (2020) [42] found that Agile methodologies significantly enhanced the rate of innovative solutions among project teams.