วอยเอจเจอร์
Where is the Voyager 1 and Voyager 2 now ?
Voyager 1 <วอยเอจเจอร์ 1> 1977140.8 AU = 1.660 ten billion km from the earth
The Voyager 1 launched September 5, 1977 from Cape Canaveral, Florida U.S.A. Voyager 1 is currently the farthest man-made object from Earth, traveling away from both the Earth and the Sun at a speed that corresponds to a greater specific orbital energy than any other probe.
As of 9 October 2009, Voyager 1 was traveling at a speed of 17.078 kilometers per second relative to the Sun (3.6 AU per year or 61,600 km/h or 38,400 miles per hour), about 10% faster than Voyager 2. As of 10 October 2008, Voyager 1 was traveling at a speed of 17.097 kilometers per second relative to the Sun (a reduction of 19 m/s within a single year, due to the attraction of the sun). 29 January 2010 had the spacecraft at approx 17.073 km/sec.On November 19, 2015, Voyager 1 will be 133.15 Astronomical Units from the Sun. Reasonably accurate information concerning its location can be found in this NASA paper with heliocentric coordinates of both space probes extrapolated up to 2015.Voyager 1 is not heading towards any particular star, but in about 40,000 years it will pass within 1.6 light years of the star AC+79 3888 in the constellation Camelopardalis because AC+79 3888 is moving to the Solar System at about 119 kilometers per second.On March 31, 2006, the amateur radio operators from AMSAT in Germany tracked and received radio waves from Voyager 1 using the 20-meter (66 ft) dish at Bochum with a long integration technique. Its data was checked and verified against data from the Deep Space Network station at Madrid, Spain. This is believed to be the first such tracking of Voyager 1.As of May 2008, Voyager 1 is at 12.45° declination and 17.125 hours right ascension, placing it in the constellation Ophiuchus as observed from the Earth. NASA continues its daily tracking of Voyager 1 with its Deep Space Network. This network measures both the elevation and azimuth angles of the incoming radio waves from Voyager 1, and it also measures the distance from the Earth to Voyager 1 by measuring the round-trip time delay of radio signals to and from Voyager 1. Then, halving that time delay, and multiplying by the well-known speed of light gives the one-way distance.
Voyager 2 <วอยเอจเจอร์ 2> 197792AU = 1.360 ten billion km from the earth
The Voyager 2 launched on August 20, 1977 from Cape Canaveral, Florida U.S.A. Voyager 2 is 92 AU from the sun as of April 2010. On November 1, 2009, it was at -54.59°declination and 19.733 h Right Ascension, placing it in the constellation Telescopium as observed from Earth.On November 30, 2006, a telemetered command to Voyager 2 was incorrectly decoded by its on-board computer-in a random error-as a command to turn on the electrical heaters of the spacecraft's magnetometer. These heaters remained turned on until December 4, 2006, and during that time, there was a resulting high temperature above 130 °C, significantly higher than the magnetometers were designed to endure, and a sensor rotation away from the correct orientation. It has not been possible to fully diagnose and correct for the damage caused to the Voyager 2's magnetometer, although efforts to do so are proceeding.Information about continuing telemetry exchanges with Voyager 2 is available from Voyager Weekly Reports. Information on the current location of Voyager 2 can be found at HeavensAbove.
Voyager web sitehttp://voyager.jpl.nasa.gov/
Voyager Golden Record
Voyager Golden Record
Greetings of Voyager's Golden Record was written by 55 languages.English French German Thai Italian Japanese Akkadian Ancient Greek Amoy Arabic Polish Portuguese Punjabi Aramaic Armenian Bengali Burmese Cantonese Czech Dutch Gujarati Hebrew Hindi Hittite Hungarian Ila (Zambia) Indonesian Kannada Korean Latin Luganda Mandarin Marathi Nepali Nguni Nyanja Oriya Persian Quechua Rajasthani Romanian Russian Serbian Sinhalese Sotho Spanish Sumerian Swedish Telugu Turkish Ukrainian Urdu Vietnamese Welsh Wuhttp://re-lab.net/welcome/lang.html
http://goldenrecord.org/
"Thai message"in Voyager Golden RecordWhose voice ?
VOYAGER Mission
Pioneer 10 & Pioneer 11
< ยานไพโอเนียร์10,11 >
Where is the Pioneer 10 and Pioneer 11 now ?
Pioneer 10 100.5 AU = 1.495978 ten billion km from the earth <>
Pioneer 10 was launched from Cape Canaveral Air Force Station's Launch Complex 36A on March 3, 1972 for heading in the direction of Aldebaran, located in Taurus.
Pioneer 10's weak signal continued to be tracked by the Deep Space Network as part of a new advanced concept study of chaos theory. After 1997 the probe was used in the training of flight controllers on how to acquire radio signals from space. The last successful reception of telemetry was on April 27, 2002; subsequent signals were barely strong enough to detect. Loss of contact was probably due to a combination of increasing distance and the spacecraft's steadily weakening power source, rather than structural failure of the craft. The last, very weak signal from Pioneer 10 was received on January 23, 2003, when it was 12 billion kilometers (7.5 billion miles) from Earth.A contact attempt on February 7, 2003 was unsuccessful. One final attempt was made on the evening of March 4, 2006, the last time the antenna would be correctly aligned with Earth. No response was received from Pioneer 10. Pioneer 10 is heading in the direction of the star Aldebaran in the constellation Taurus at roughly 2.6 AU per year. If Aldebaran had zero relative velocity, it would take Pioneer 10 about 2 million years to reach it. There is no longer communication with the probe; the last contact was in 2003 and in 2006 a final attempt at contact failed.
http://www.nasa.gov/centers/ames/missions/archive/pioneer.html
Pioneer 11 80.66AU = 1.2066 ten billion km from the earth <>
Pioneer 11 was launched from Cape Canaveral Air Force Station on April 5, 1973 for investigating Jupiter and the outer solar system
Its objectives were to study the interplanetary and planetary magnetic fields; solar wind properties; cosmic rays; transition region of the heliosphere; neutral hydrogen abundance; distribution, size, mass, flux, and velocity of dust particles; Jovian aurorae; Jovian radio waves; the atmospheres of planets and satellites; and the surfaces of Jupiter, Saturn, and some of their satellites. Pioneer 11 completed a successful Saturn flyby in 1979, and it is now estimated (assuming it is still intact) to be following an escape trajectory from the solar system.Pioneer 11 explored the outer regions of our Solar system, studying the Solar Wind and cosmic rays entering our portion of the Milky Way.The spacecraft has operated on a backup transmitter since launch. Instrument power sharing began in February 1985 due to declining generator power output. Science operations and daily telemetry ceased on September 30, 1995 when the RTG power level was insufficient to operate any experiments. As of the end of 1995, when its mission ended, the spacecraft was located at 44.7 AU from the Sun at a nearly asymptotic latitude of 17.4 degrees above the solar equatorial plane and was heading outward at ~2.4 AU/year (11.6 km/s); this is the lowest velocity of the five spacecraft now escaping the Solar System (Voyagers 1 and 2, Pioneers 10 and 11, and New Horizons).Earth's motion has carried it out of alignment with the spacecraft antenna. As the antenna cannot be maneuvered to point back at our planet, it is no longer possible with current technology to establish further communication from Earth with the probe.The spacecraft is headed toward the constellation of Aquila (The Eagle), Northwest of the constellation of Sagittarius. Barring incident, Pioneer 11 will pass near the star Lambda (λ) Aquilae in about 4 million years time.
http://www.nasa.gov/mission_pages/pioneer/index.html
1 AU = 149 597 870 691(6) m = 1.495 978 706 91(6)×1011 m
AU(Astronomical Unit) หน่วยดาราศาสตร์ คือ หน่วยของระยะทาง มีค่า (โดยประมาณ) เท่ากับระยะห่างเฉลี่ยระหว่างโลกกับดวงอาทิตย์ ค่าที่ยอมรับในปัจจุบัน เท่ากับ 149,597,870,691±30 เมตร (ประมาณ 150 ล้านกิโลเมตร หรือ 93 ล้านไมล์)สัญลักษณ์ "ua" ได้รับการเสนอจากสำนัก Bureau International des Poids et Mesures แห่งฝรั่งเศส แต่ในสหรัฐอเมริกาและประเทศอื่นๆ ที่ใช้ภาษาอังกฤษจะใช้อักษรตัวใหญ่มากกว่า ส่วนสหภาพดาราศาสตร์สากล (International Astronomical Union) เสนอให้ใช้ "au" ส่วนมาตรฐานนานาชาติ ISO 31-1 นั้นใช้ "AU"
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