# Dumsat > 26086 **Wikidata**: [Q111497769](https://www.wikidata.org/wiki/Q111497769) **Source**: https://4ort.xyz/entity/dumsat ## Summary Dumsat is an artificial satellite identified by the code 26086. It is a human-made object placed into orbit, classified as a specialized type of spacecraft designed to orbit a celestial body. As an instance of an artificial satellite, it shares the fundamental characteristics of objects used for communication, navigation, research, or military applications. ## Key Facts * **Entity Name:** Dumsat * **Classification:** Instance of an **Artificial Satellite**. * **Definition:** A human-made object put into an orbit around a celestial body. * **Identifier Code:** 26086 (referenced in Wolfram Language as `Entity["Satellite", "26086"]`). * **First of Class:** Sputnik 1 (launched October 4, 1957, by the Soviet Union). * **Orbital Types:** Includes Geostationary, Low Earth Orbit (LEO), and Heliocentric. * **Variants:** Includes passive satellites, tethered satellites, femtosatellites, and picosatellites. * **Key Missions (Class Context):** Project Echo (1960), PAGEOS (1966), Syracuse 4, Gonets-M. ## FAQs ### What is Dumsat? Dumsat is an artificial satellite identified by the specific code 26086. It is categorized as a human-made spacecraft designed to orbit a celestial body, such as the Earth. ### What is an artificial satellite? An artificial satellite is a machine launched into space to orbit Earth or another body. Unlike natural satellites (like the Moon), these are constructed by humans for purposes such as communication, navigation, and scientific observation. ### When was the first artificial satellite launched? The first artificial satellite, Sputnik 1, was launched by the Soviet Union on October 4, 1957. This event marked the official beginning of the space age. ### How do artificial satellites function? Satellites maintain their orbit through a balance of gravitational pull and forward velocity. They are used for diverse tasks, including reflecting radio signals (passive satellites), capturing solar energy, or facilitating global positioning systems (GPS). ### What are the different types of artificial satellites? Satellites vary by size and orbit. Types include passive satellites (e.g., Project Echo), tethered satellites connected by cables, and miniaturized versions like femtosatellites and picosatellites. ## Why It Matters Dumsat represents a specific entry within the critical infrastructure of artificial satellites, which act as the backbone of modern global communication, navigation, and security. The class of entities to which Dumsat belongs enables real-time weather monitoring, internet connectivity, and the Global Positioning System (GPS). Militarily, satellites like those in the Syracuse 4 or Gonets-M constellations provide secure communications, while historically, satellites like Sputnik 1 and PAGEOS accelerated aerospace technology and geodetic research. The ongoing development and tracking of satellites like Dumsat are essential for managing orbital congestion and space debris, ensuring the sustainability of space operations. ## Notable For * **Classification:** Being an instance of an artificial satellite, the technology that initiated the Space Age in 1957. * **Broad Utility:** Belonging to the category of spacecraft responsible for enabling global television, internet, and telephony. * **Scientific Heritage:** Sharing a classification with historic research satellites like PAGEOS (1966) and Environmental Research Satellites (1960s). * **Technological Miniaturization:** Existing within a category that now includes advanced miniaturized variants like femtosatellites. ## Body ### Definition and Classification Dumsat is explicitly defined as an **artificial satellite** with the identifying code **26086**. In the Wolfram Language, it is represented as `Entity["Satellite", "26086"]`. As an artificial satellite, it is a human-made object placed into orbit around a celestial body, typically Earth. This classification distinguishes it from natural satellites and probes that travel through deep space. It is a subclass of spacecraft specifically engineered to operate in orbital environments. ### Historical Context of Artificial Satellites The category of artificial satellites began with the launch of **Sputnik 1** by the Soviet Union on **October 4, 1957**. This milestone initiated the space age. Following this, various missions defined the capabilities of the class: * **Project Echo (1960):** The first passive communications satellite, designed to reflect radio signals. * **PAGEOS (1966):** A NASA passive geodetic satellite used for Earth observation. * **Environmental Research Satellites (1960s):** Used for scientific study. ### Types and Variants The class of "artificial satellite" encompasses a wide range of technologies, which provides context for Dumsat's classification: * **Passive Satellites:** Objects like Project Echo that reflect signals rather than transmitting them. * **Tethered Satellites:** Systems consisting of two components connected by a cable. * **Miniaturized Satellites:** Small-scale units including **femtosatellites** and **picosatellites**, often weighing less than 1 kg. * **Specialized Satellites:** Includes orbital power plants designed to capture solar energy for wireless transmission. ### Orbital Mechanics and Operations Artificial satellites operate in various orbital regimes depending on their mission profiles: * **Geostationary Orbit:** Satellites remain fixed over a specific point on Earth. * **Low Earth Orbit (LEO):** Commonly used for communication constellations and Earth observation. * **Heliocentric Orbit:** Artificial satellites that orbit the Sun. Satellites maintain these orbits through a balance of gravitational pull and forward velocity, which creates centrifugal force to counteract gravity. ### Applications and Military Use Satellites in this class serve critical functions across civil and military sectors: * **Communication:** They form the backbone of global television, internet, and telephony. * **Navigation:** GPS relies on satellite constellations. * **Military:** Secure communications are provided by constellations such as the French **Syracuse 4** and the Russian **Gonets-M**. ### Challenges and Sustainability The proliferation of artificial satellites has led to challenges regarding **space debris** and **orbital congestion**. Defunct satellites and fragments pose collision risks to operational infrastructure. Consequently, the field is developing **space debris removal satellites** to manage orbital clutter and ensure the sustainability of future space operations.