A satellite or artificial satellite is an object intentionally placed into orbit around a celestial body. Satellites have a variety of uses, including communication relay, weather forecasting, navigation (GPS), broadcasting, scientific research, and Earth observation. Additional military uses are reconnaissance, early warning, signals intelligence and, potentially, weapon delivery. Other satellites include the final rocket stages that place satellites in orbit and formerly useful satellites that later become defunct.
A sounding rocket or rocketsonde, sometimes called a research rocket or a suborbital rocket, is an instrument-carrying rocket designed to take measurements and perform scientific experiments during its sub-orbital flight. The rockets are used to launch instruments from 48 to 145 km above the surface of the Earth, the altitude generally between weather balloons and satellites; the maximum altitude for balloons is about 40 km and the minimum for satellites is approximately 121 km. Certain sounding rockets have an apogee between 1,000 and 1,500 km, such as the Black Brant X and XII, which is the maximum apogee of their class. Sounding rockets often use military surplus rocket motors. NASA routinely flies the Terrier Mk 70 boosted Improved Orion, lifting 270–450-kg (600–1,000-pound) payloads into the exoatmospheric region between 97 and 201 km.
The Swedish National Space Agency is a Government agency in Sweden operating under the Swedish Ministry of Education and Science. SNSA operates as a key component of the Swedish space programme, which is mostly carried out through international cooperation, and has included a sequence of satellite missions, both national ones and in cooperation with other nations. Furthermore, the agency distributes government grants to research and development, initiates research and development in space and remote sensing, and acts as the Swedish contact in international cooperative efforts.
The Swedish Space Corporation, SSC, also registered as Svenska rymdaktiebolaget, is a Swedish space services company. SSC operations consist of launches of sounding rockets and stratospheric balloons, tests of future generation rocket engines and new rocket fuels, operation and maintenance of space and aviation systems, as well as satellite communications through the use of SSC ground stations deployed around the world. SSC is also working on developing its Space Surveillance Tracking (SST) and Space Traffic Management (STM) programs with the aim to identify, assess and minimize risks of collisions and disruptions associated with space debris.
The Swedish Institute of Space Physics is a Swedish government agency. The institute's primary task is to carry out basic research, education and associated observatory activities in space physics, space technology and atmospheric physics.
The Vikram Sarabhai Space Centre (VSSC) is a major space research centre of the Indian Space Research Organisation (ISRO), focusing on rocket and space vehicles for India's satellite programme. It is located in Thiruvananthapuram, in the Indian state of Kerala.
The Fanhui Shi Weixing series of satellites was China's first reconnaissance satellite program. The satellites were used for military reconnaissance and civilian imagery tasks and completed 23 missions between November 1974 and April 2016. There were four generations of the Fanhui Shi Weixing (FSW) satellites: FSW-0 from 1974 to 1987; FSW-1 from 1987 to 1993; FSW-2 from 1992 to 1996; and FSW-3 from 2003 to 2005. Two derivative models, the Shijian-8 (SJ-8) and Shijian-10 (SJ-10), were developed and launched as 'seed satellites' conducting bioastronautic experiments for the Chinese Ministry of Agriculture. All FSW-series satellites were launched into orbit using Long March rockets from the Jiuquan Satellite Launch Center (JSLC).
Spaceflight began in the 20th century following theoretical and practical breakthroughs by Konstantin Tsiolkovsky, Robert H. Goddard, and Hermann Oberth. First successful large-scale rocket programs were initiated in the 1920s Germany by Fritz von Opel and Max Valier, and eventually in Nazi Germany by Wernher von Braun. The Soviet Union took the lead in the post-war Space Race, launching the first satellite, the first man and the first woman into orbit. The United States caught up with, and then passed, their Soviet rivals during the mid-1960s, landing the first men on the Moon in 1969. In the same period, France, the United Kingdom, Japan and China were concurrently developing more limited launch capabilities.
Space Dynamics Laboratory (SDL) is a nonprofit government contractor owned by Utah State University. SDL was formed in 1982 from the merger of Utah State University's Electro Dynamics Laboratories and the University of Utah's Upper Air Research Laboratory. The corporation has been responsible for the design, fabrication, and operation of sensors on over 430 payloads ranging from aircraft and rocket-borne experiments to space shuttle experiments and satellite-based sensor systems. SDL is the Missile Defense Agency's University Affiliated Research Center (UARC) and one of 14 UARCs in the nation. SDL provides sensor systems and supporting technologies to address challenges for the United States government. SDL designs and develops electro-optical sensors, builds small satellites, provides calibration services, and creates real-time data reconnaissance systems.
The Advanced Research and Global Observation Satellite (ARGOS) was launched on 23 February 1999 carrying nine payloads for research and development missions by nine separate researchers. The mission terminated on 31 July 2003.
Rocket Lab, Inc. is a publicly traded aerospace manufacturer and launch service provider. The company operates lightweight Electron orbital rockets, which provide dedicated launches for small satellites. The company also plans to build a larger Neutron rocket as early as 2024. Electron rockets have launched 33 times from either Rocket Lab's Launch Complex 1 in New Zealand and at the Mid-Atlantic Regional Spaceport in Wallops Island, Virginia, United States.
Ionospheric Connection Explorer (ICON) is a satellite designed to investigate changes in the ionosphere of Earth, the dynamic region high in our atmosphere where terrestrial weather from below meets space weather from above. ICON studies the interaction between Earth's weather systems and space weather driven by the Sun, and how this interaction drives turbulence in the upper atmosphere. It is hoped that a better understanding of this dynamic will mitigate its effects on communications, GPS signals, and technology in general. It is part of NASA's Explorer program and is operated by University of California, Berkeley's Space Sciences Laboratory.
Planet Labs PBC is an American public Earth imaging company based in San Francisco, California. Their goal is to image the entirety of the Earth daily to monitor changes and pinpoint trends.
Electron is a two-stage, partially recoverable orbital launch vehicle developed by Rocket Lab, an American aerospace company with a wholly owned New Zealand subsidiary. Electron was developed to service the commercial small satellite launch market. Its Rutherford engines are the first electric-pump-fed engine to power an orbital-class rocket. Electron is often flown with a kickstage or Rocket Lab's Photon spacecraft. Although the rocket was designed to be expendable, Rocket Lab has recovered the first stage twice and is working towards the capability of reusing the booster. The Flight 26 (F26) booster has featured the first helicopter catch recovery attempt.
ÑuSat satellite series, is a series of Argentinean commercial Earth observation satellites. They form the Aleph-1 constellation, which is designed, built and operated by Satellogic.
Capella Space is an American space company. It is developing space-based radar Earth observation satellites equipped with synthetic-aperture radar that can penetrate clouds and work at night. The company is based in San Francisco, California. It was founded by Payam Banazadeh, a former engineer at Jet Propulsion Laboratory of NASA, and William Walter Woods.
Humanity Star was a reflective passive satellite designed to produce visible, pulsing flares. The satellite was launched into orbit by an Electron rocket on 21 January 2018 and entered into the atmosphere on 22 March 2018. The reaction to Humanity Star was mostly negative by astronomers, as it interfered with their observations.
This article documents expected notable spaceflight events during the year 2024.
FR-1 was the second French satellite. Planned as the first French satellite, it was launched on 6 December 1965—ten days after the actual first French satellite, Astérix—by an American Scout X-4 rocket from the Western Range at Vandenberg Air Force Base. The scientific satellite studied the composition and structure of the ionosphere, plasmasphere, and magnetosphere by measuring the propagation of very low frequency (VLF) waves and the electron density of plasma in those portions of the Earth's atmosphere. FR-1's VLF receiver operated until 26 August 1968. FR-1 remains in orbit as of 2023.
