[201] At this distance, the one-way transit time for radio signals between Earth and New Horizons was six hours. Funding was secured on July 1, 2016. To escape the Sun the spacecraft needs a speed relative to the Sun of the square root of 2 times the speed of the Earth (29.78 km/s), or 42.1 km/s. The probability that a target for New Horizons would be found was estimated beforehand at about 95%. This delays the arrival at Arrokoth by a few hours, optimizing coverage by ground-based radio telescopes. [190], The new mission began on October 22, 2015, when New Horizons carried out the first in a series of four initial targeting maneuvers designed to send it toward Arrokoth. [4] Engineered by the Johns Hopkins University Applied Physics Laboratory (APL) and the Southwest Research Institute (SwRI), with a team led by S. Alan Stern,[5] the spacecraft was launched in 2006 with the primary mission to perform a flyby study of the Pluto system in 2015, and a secondary mission to fly by and study one or more other Kuiper belt objects (KBOs) in the decade to follow, which became a mission to 486958 Arrokoth.

When New Horizons reaches the distance of 100 AU, it will be travelling at about 13 km/s (47,000 km/h; 29,000 mph), around 4 km/s (14,000 km/h; 8,900 mph) slower than Voyager 1 at that distance. [205][206] This depends on a suitable Kuiper belt object still to be found or confirmed close enough to the spacecraft's current trajectory. Closest approach occurred at 4:05 UTC at a distance of 101,867 km (63,297 mi) (around one quarter of the average Earth-Moon distance). [209], In April 2020, New Horizons was used, in conjunction with telescopes on Earth, to take pictures of nearby stars Proxima Centauri and Wolf 359; the images from each vantage point - over 4 billion miles (6.4 billion km) apart - were compared to produce "the first demonstration of an easily observable stellar parallax."[210]. "[25] The call eventually led to a series of proposed Pluto missions, leading up to New Horizons. [129] The object would be too distant to resolve surface features or take spectroscopy, but it would be able to make observations that cannot be made from Earth, namely a phase curve and a search for small moons. Ralph has two separate channels: MVIC (Multispectral Visible Imaging Camera), a visible-light CCD imager with broadband and color channels; and LEISA (Linear Etalon Imaging Spectral Array), a near-infrared imaging spectrometer. 3.0, Johns Hopkins University Applied Physics Laboratory, A lap utolsó módosítása: 2020. június 17., 23:52. [178] In addition, it will continue to study the gas, dust and plasma composition of the Kuiper belt before the mission extension ends in 2021. No scientific measurements or images were taken, but instrument electronics, and in the case of Alice, some electromechanical systems were shown to be functioning correctly.

[84], On January 28 and 30, 2006, mission controllers guided the probe through its first trajectory-correction maneuver (TCM), which was divided into two parts (TCM-1A and TCM-1B). The total velocity change of these two corrections was about 18 meters per second (65 km/h; 40 mph). [103] The probe was activated for about two months a year so that the instruments could be calibrated and the systems checked. Including other functions such as instrument and radio electronics, each IEM contains 9 boards. Some members of the New Horizons team, including Alan Stern, disagree with the IAU definition and still describe Pluto as the ninth planet. Stamatios "Tom" Krimigis, head of the Applied Physics Laboratory's space division, one of many entrants in the New Frontiers Program competition, formed the New Horizons team with Alan Stern in December 2000. Horizons University was designed to offer its students high quality education at an affordable price. [115] On July 14, 2014, mission controllers performed a sixth trajectory-correction maneuver (TCM) since its launch to enable the craft to reach Pluto.

Transported from Hazardous Servicing Facility to Vertical Integration Facility at Space Launch Complex 41. [85] On March 9, 2006, controllers performed TCM-3, the last of three scheduled course corrections.



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