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While IEEE 488.2 provided a device-independent syntax, there was still no standard for instrument-specific commands. Commands to control the same class of instrument, e.g., multimeters, would vary between manufacturers and even models. The United States Air Force, [9] and later Hewlett-Packard, recognized this problem.
Launch failure. Improper separation of a lanyard during booster jettison caused the Atlas's guidance computer to reset itself. Control of the booster was gradually lost. RSO T+403 seconds. Intelsat IV F-7: 23 August 1973 22:57:02: Atlas SLV-3D Centaur-D1A: Cape Canaveral, LC-36A: Retired [citation needed] Intelsat IV F-8: 21 November 1974 23:43:59
Gemini Program Overview; IBM and the Gemini Program; As of this edit, this article uses content from "Gemini Guidance Computer", which is licensed in a way that permits reuse under the Creative Commons Attribution-ShareAlike 3.0 Unported License, but not under the GFDL. All relevant terms must be followed.
Flight software and experiment related instructions are written in C programming language. [1] The satellites can communicate with each other using a 916.5 MHz, 16 kbit/s radio link. Communication with the control station (a laptop computer) is done using an 868.35 MHz, 16 kbit/s radio link. [6]
The GPS Operational Control Segment (OCS), consisting of a worldwide network of satellite operations centers, ground antennas and monitoring stations, provides Command and Control (C2) capabilities for GPS Block II satellites. [60] The latest update to the GPS OCS, Architectural Evolution Plan 7.5, was operationally accepted in 2019. [61]
Orbit modeling is the process of creating mathematical models to simulate motion of a massive body as it moves in orbit around another massive body due to gravity.Other forces such as gravitational attraction from tertiary bodies, air resistance, solar pressure, or thrust from a propulsion system are typically modeled as secondary effects.
The UCD control technique is called “Wave-Based Control” (WBC). [12] EIRSAT-1 will use a standard control system initially. At some time into the mission, in response to an instruction from Earth, the on-board computer will start using WBC to control the satellite's attitude, thereby evaluating its performance and, it is hoped, qualifying ...
The Iridium system was designed to be accessed by small handheld phones, the size of a cell phone. While "the weight of a typical cell phone in the early 1990s was 10.5 ounces" [6] (300 grams) Advertising Age wrote in mid 1999 that "when its phone debuted, weighing 1 pound (453 grams) and costing $3,000, it was viewed as both unwieldly and expensive."