४३ वर्षमा कहाँ पुग्याे भ्वाइजर ? के के पत्ता लगाए ? Journey of Voyager 1&2 || Bishwo Ghatana

एलियनलाई हामीले पठाएको सन्देश :    • एलियनलाई हामीले पठाएको सन्देश || Journey t...   Our Next youtube channel : All History:    • The richest Man on Earth - Mansa Musa || स...   Follow on Facebook:   / bishwoghatna   Follow on Twitter:   / bishwoghatana   Voyager 2's handlers beamed a set of test commands to the spacecraft on Thursday (Oct. 29) using the Deep Space Station 43 (DSS43) radio antenna in Canberra, Australia. Voyager 2 confirmed that it registered the instructions and executed them without incident, NASA officials said in an update on Monday (Nov. 2). The commands were the first NASA had relayed to Voyager 2 since mid-March, when the 230-foot-wide (70 meters) DSS43 went offline for repairs and upgrades. This ongoing maintenance work is extensive, involving, among other things, the addition of two new radio transmitters, including one that is used to communicate with Voyager 2. That particular transmitter hadn't been replaced in more than 47 years, NASA officials said. "What makes this task unique is that we're doing work at all levels of the antenna, from the pedestal at ground level all the way up to the feedcones at the center of the dish that extends above the rim," Brad Arnold, of NASA's Jet Propulsion Lab in Southern California, said in Monday's update. "This test communication with Voyager 2 definitely tells us that things are on track with the work we're doing," said Arnold, the project manager for NASA's Deep Space Network (DSN). That work, which will benefit communications with a wide range of NASA spacecraft, is scheduled to wrap up in February 2021, agency officials said. The DSN is a network of radio dishes in three different, roughly equidistant locales — Canberra; Madrid, Spain; and Goldstone, California — that NASA uses to communicate with its far-flung spacecraft. The Canberra site includes three smaller dishes that together can receive spacecraft relays, so the Voyager 2 team has been able to keep tabs on the distant probe even while the DSS43 work prevented them from sending commands. And Voyager 2 cannot be hailed using DSN gear in Spain and California: The spacecraft is moving downward relative to Earth's orbital plane and can be reached only from the Southern Hemisphere. Voyager 2 and its twin, Voyager 1, launched a few weeks apart in 1977 to conduct an epic "grand tour" of the solar system's giant planets. The two probes accomplished this unprecedented task; Voyager 1 flew by Jupiter and Saturn, and Voyager 2 had close encounters with Jupiter, Saturn, Uranus, and Neptune. Voyager 1 is a space probe that was launched by NASA on September 5, 1977. Part of the Voyager program to study the outer Solar System, Voyager 1 was launched 16 days after its twin, Voyager 2. Having operated for 43 years and 2 months as of November 6, 2020, UTC [refresh], the spacecraft still communicates with the Deep Space Network to receive routine commands and to transmit data to Earth. Real-time distance and velocity data is provided[3] by NASA and JPL. At a distance of 150.6 AU (22.5 Tm; 14.0 billion mi) from Earth as of September 17, 2020, it is the most distant man-made object from Earth. The probe's objectives included flybys of Jupiter, Saturn, and Saturn's largest moon, Titan. Although the spacecraft's course could have been altered to include a Pluto encounter by forgoing the Titan flyby, exploration of the moon took priority because it was known to have a substantial atmosphere. Voyager 1 studied the weather, magnetic fields, and rings of the two planets and was the first probe to provide detailed images of their moons. As part of the Voyager program, like its sister craft Voyager 2, the spacecraft is in an extended mission to locate and study the regions and boundaries of the outer heliosphere, and to begin exploring the interstellar medium. Voyager 1 crossed the heliopause and entered interstellar space on August 25, 2012, making it the first spacecraft to do so. Two years later, Voyager 1 began experiencing a third "tsunami wave" of coronal mass ejections from the Sun, that has continued to at least December 15, 2014, further confirming that the probe is indeed in interstellar space. In a further testament to the robustness of Voyager 1, the Voyager team tested the spacecraft's trajectory correction maneuver (TCM) thrusters in late 2017 (the first time these thrusters had been fired since 1980), a project enabling the mission to be extended by two to three years.[12] Voyager 1's extended mission is expected to continue until about 2025 when its radioisotope thermoelectric generators will no longer supply enough electric power to operate its scientific instruments Music Credit : Martian Cowboy Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 License http://creativecommons.org/licenses/b... http://incompetech.com/ http://audionautix.com/ http://audionautix.com/