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Found 4 entries in the Bibliography.
Showing entries from 1 through 4
| 2017 |
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Sun direction determination for the solar probe plus spacecraft The Solar Probe Plus (SPP) mission plans to launch a spacecraft to explore the Sun in 2018. This paper presents the process applied in the attitude control flight software for the spacecraft to determine the best Sun direction from Sun sensor data or a vector derived from on-board ephemeris models and the estimated attitude. Self-consistency checks applied to determine validity of these different knowledge sources are explained, with emphasis on processing of solar limb sensor data. Consistency checks between the available d ... Vaughan, Robin; Wirzburger, John; McGee, Timothy; Shapiro, Hongxing; Shaughnessy, Daniel; Published by: Advances in the Astronautical Sciences Published on: |
| 2013 |
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A first look at the guidance and control system for the Solar Probe Plus mission The Solar Probe Plus mission plans to send a spacecraft to explore the inner region of the heliosphere and is currently working towards launch in 2018. Protection from the harsh solar environment is accomplished with a large thermal protection system (TPS), which includes a large shield protecting most spacecraft components and instruments from direct exposure to the Sun. Reliable attitude control is needed to keep the TPS shield between the main body of the spacecraft and th ...
Vaughan, Robin; Shapiro, Hongxing; Wirzburger, John; Published by: AIAA Guidance, Navigation, and Control (GNC) Conference Published on: Attitude control; Conceptual design; Control systems; Solar cell arrays; Parker Engineering |
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Modeling the near-sun environment for the Solar Probe Plus Guidance and Control system The Solar Probe Plus (SPP) mission is the culmination of decades of studies on spacecraft designed to explore the inner region of the heliosphere. The mission is being implemented by the Johns Hopkins University Applied Physics Laboratory for a 2018 launch. Building on the flight experiences of the Helios (NASA/FRG) and MESSENGER (NASA/JHUAPL) spacecraft and several remote studies, SPP will be the closest operating spacecraft to the Sun, even surpassing the 2017 planned launch of the Solar Orbiter (ESA/NASA) spacecraft. At a ... Wirzburger, John; Vaughan, Robin; Shapiro, Hongxing; Published by: AIAA Guidance, Navigation, and Control (GNC) Conference Published on: dynamics; Flight control systems; NASA; Probes; Space flight; Spacecraft; Parker Engineering |
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Avoiding the burn: Maintaining a Sun-safe attitude for the Solar Probe Plus spacecraft The Solar Probe Plus (SPP) mission plans to send a spacecraft to explore the inner region of the heliosphere and is currently working towards launch in 2018. The SPP spacecraft will make in-situ measurements and remote observations over a series of 24 nearly-ecliptic solar orbits with perihelion decreasing from 35 solar radii (Rs) to a minimum of 9.86 Rs over a period of 7 years. Proper orientation of the spacecraft and solar arrays relative to the Sun is essential for a successful mission. A large shield must be kept betwee ... Vaughan, Robin; Kubota, Sanae; Shapiro, Hongxing; Kagan, Mike; Vesel, John; Published by: AIAA Guidance, Navigation, and Control (GNC) Conference Published on: Attitude control; Closed loop control systems; Failure analysis; Probes; Solar cell arrays; Spacecraft; Parker Engineering |
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