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Topic: Flyby


In the News (Sun 21 Jul 19)

  
  Deep Impact - Flyby Spacecraft   (Site not responding. Last check: 2007-10-10)
As part of Deep Impact's flight system, the flyby spacecraft is one of two vessels carrying the three science instruments.
When the impactor is released from its union with the flyby spacecraft, the flyby will fire thrusters in a braking maneuver, align itself to observe the impact, ejecta, crater development, and crater interior as it passes within 500 km of Tempel 1.
The flyby spacecraft hosts two of the three primary instruments, the High Resolution Instrument and the Medium Resolution Instrument, for imaging, infrared spectroscopy, and optical navigation.
www.ballaerospace.com /di_flyby.html   (384 words)

  
 Flyby
Flyby wasn't just someone that I met around Cybertown from time to time but he was someone who I had met and interacted with a number of times in real life and with whom a strong friendship had formed.
Flyby, Hawk, and I met in real life on different ocassions but both Hawk and I are somewhat reserved and, never at a loss for words, it was Fly who ignited the atmosphere with hugs and laughing.
Flyby, crashdummy and I have been such close friends for so many years it was as if together we were one.
www.cybertown.com /dailynews2/ForFlyby.html   (1457 words)

  
 Mathilde Flyby   (Site not responding. Last check: 2007-10-10)
During the flyby, the spacecraft was 2.0 astronomical units (AU) from the sun and 2.2 AU from Earth.
By the time of the June 27 flyby, ground-based telescopes had determined that Mathilde was one of the darkest objects in the solar system, reflecting only 3 or 4 percent of the light falling on it from the sun.
The flyby allowed scientists to slightly revise their estimates of Mathilde's size, now determined to be approximately 52 kilometers across (previous ground-based measurements had suggested the asteroid was about 61 kilometers across).
solid_earth.ou.edu /readings/mathilde_flyby.html   (1065 words)

  
 What is a flyby?   (Site not responding. Last check: 2007-10-10)
A flyby is a path a spacecraft follows past a planet or other body in space to get information about it.
During a flyby, a spacecraft must use its instruments to observe the target as it passes, changing the aim of the instruments as it passes.
Flyby operations are planned years in advance of the encounter and refined and practiced in the months prior to the encounter date.
www.qrg.northwestern.edu /projects/vss/docs/Navigation/2-what-is-flyby.html   (253 words)

  
 Stardust | JPL | NASA
This flyby was used as an engineering test of the ground and spacecraft operations that will be implemented at the primary scientific target, Comet Wild 2 (pronounced "Vilt" 2) just over one year from now.
The close flyby of Annefrank offered a unique opportunity to thoroughly test all planned operations on the spacecraft and ground support operations which will be used during the rendezvous with Comet Wild 2.
The main function to be tested during flyby was a sophisticated flight computer program that would take over control of the spacecraft to keep the camera view locked on Annefrank during a 25-minute period around its closest encounter.
stardust.jpl.nasa.gov /news/news94.html   (1410 words)

  
 Asteroid Flyby Modelling   (Site not responding. Last check: 2007-10-10)
A close flyby is one in which the probe is within a factor of 3 of its flyby distance for a period in the order of seconds, whilst during a distant flyby a probe is within a factor of 3 of its flyby distance for at least a few minutes.
The closer the flyby is to the target, the smaller the slew angle and slew rate are at the point of minimum acceptable imaging distance.
To verify that a probe with body-pointed payload was practical a successive-slew flyby was modelled for a flyby with a closest approach of 100 km and a sensor IFOV of 3 milliradians (about 0.2°).
www.cix.co.uk /~sjbradshaw/msc/flyby.html   (3028 words)

  
 NASA - Flyby Spacecraft
When the impactor is released from its union with the flyby spacecraft, the flyby spacecraft will slow itself down and align itself to observe the impact, ejecta, crater development, and crater interior as it passes within 500 km of Tempel 1.
The flyby spacecraft carries two of the three primary instruments, the High Resolution Instrument (HRI) and the Medium Resolution Instrument (MRI), for imaging, infrared spectroscopy, and optical navigation.
As the spacecraft passes through the inner coma of the comet it is in danger of being hit by small particles that could damage the control, imaging and communication systems.
www.nasa.gov /mission_pages/deepimpact/spacecraft/flybyspacecraft.html   (403 words)

  
 Amalthea Flyby: The Heat is On :: Astrobiology Magazine :: Search for Life in the Universe
The spectacular Galileo flybys of Europa and Io are largely credited with the discovery of frozen water ice and some of the earliest examples of non-solar (tidal) heating anywhere in our solar system.
This maneuver will establish the flyby altitude of 134 kilometers (83 miles) over the surface of the irregularly-shaped moon, whose longest dimension is about 135 kilometers.
Although the radiation environment around Jupiter is always difficult for its on-board electronics, this flyby should yield an estimate of the mass and, correspondingly, the bulk density for the satellite.
www.astrobio.net /news/modules.php?op=modload&name=News&file=article&sid=270&mode=thread&order=0&thold=0   (1131 words)

  
 Universe Today - Cassini's First Titan Flyby Tomorrow
This is one of 45 planned flybys of Titan during the four-year tour.
One important goal of this flyby is to confirm scientists' model of Titan's atmosphere to prepare for the Huygens probe descent.
This flyby will mark the first time Cassini's imaging radar is used to observe Titan, and is expected to provide topographical maps and show whether there is a liquid or solid surface.
www.universetoday.com /am/publish/cassini_first_titan_flyby_tomorrow.html?25102004   (898 words)

  
 Flyby of Annefrank asteroid to help Stardust prepare for primary mission
The flyby will test many of the systems and procedures to be used when Stardust makes its encounter with comet Wild 2 in little more than a year.
For one thing, if it runs into serious problems during the asteroid encounter it will be able to go into "safe mode," where the spacecraft turns its solar power collectors toward the sun and essentially protects itself.
Brownlee said the Annefrank flyby is "a very good test," the kind that ideally every mission should have.
www.washington.edu /newsroom/news/2002archive/10-02archive/k102802.html   (665 words)

  
 Deep Impact Comet Flyby Simulations   (Site not responding. Last check: 2007-10-10)
The crater and its corresponding ejecta curtain (the material thrown out of the forming crater) will be observed in detail by the flyby spacecraft for a period of about 13 1/3 minutes as it flies by the comet nucleus, coming within about 500 km (310 miles).
The flyby spacecraft carries with it two instruments for observing the impact and its effects within visible light wavelengths.
Below are two example flyby animations, using a modified-Borelly comet model to represent the nucleus of Tempel 1 and shown at two different encounter orientations.
www.lpl.arizona.edu /~jrich/DIflybyview.html   (904 words)

  
 Titan's Flyby :: Astrobiology Magazine :: Search for Life in the Universe
But the purpose of the flyby is to get a better view of what a Christmas descent to the surface may encounter.
Even if next week's flyby reveals new details about the liquid seas that would startle the planetary science community, actual descent will still probably be about flying blind.
The tentative plan for Huygens is to target the best of the bright and dark regions--the actual site will be selected after next week's flyby but is considered a good bet to aim towards the equator, near the boundary of a dark area next to a bright one.
www.astrobio.net /news/article1256.html   (634 words)

  
 MESSENGER: MErcury Surface, Space ENvironment, GEochemistry, and Ranging
This journey includes a flyby of Earth (in August 2005), two flybys of Venus (October 2006 and June 2007) and three flybys of Mercury (January 2008, October 2008 and September 2009).
During a flyby a spacecraft flies near the planet but does not land on it or enter an orbit around it.
During the flyby, linear momentum is transferred from the planet to the passing spacecraft.
messenger.jhuapl.edu /faq/faq_journey.html   (1819 words)

  
 Predicted Titan Flyby Magnetic Field Profiles
For each flyby we give the local time of Titan and the altitude of closest approach, the date and time of encounter from the lists prepared by Fritz Neubauer and Sylvestre Maurice.
A complementary series of plots showing several of the flyby trajectories through the cloud of (mass 29 hydrocarbon) pick up ions produced on the corotational upstream side has been produced by Janet Luhmann.
Comments: Flyby 11, 13 have similar but complementary local times; Flyby 1 and 3 are at quite different local times.
www-ssc.igpp.ucla.edu /ssc/Cassini/flyby_plots.html   (1240 words)

  
 ESA Science & Technology: No. 16 - Successful Titan-B flyby
At closest approach the spacecraft came to within 1200 kilometres of the moon's surface, allowing for observations at a similar resolution of those made during the first targeted encounter on 27 October 2004.
Data from the UVIS will be used to improve the model of Titan's atmosphere, necessary to validate the altitude of future flybys.
The ISS targeted several regions that were also observed during the previous flyby on 27 October, allowing for the detection of possible changes in the surface patterns.
sci.esa.int /science-e/www/object/index.cfm?fobjectid=36223   (171 words)

  
 Stardust 5535 Annefrank Flyby
The objective was to practice for the mission's comet 81P/Wild 2 flyby in January 2004, and the flight past the asteroid was planned to be at a distance of about 3,200 km.
The mission reported on November 15th that all flyby images had finished being downloaded, but no further imagery was made available to the public until the pictures were archived early this year at the NASA Planetary Data System (PDS) Small Bodies Node section for Stardust Mission Support at the University of Maryland.
The flyby planning is detailed in Stardust Mission Plan Post Launch Supplement B, Wild-2 Encounter Test: Annefrank Flyby, which is archived as a 580Kb PDF dated 23 October 2002.
www.hohmanntransfer.com /top/stardust/5535.htm   (1147 words)

  
 Southwest Research Institute (SwRI) News Release
The Jupiter flyby would be used by New Horizons to provide a gravitational assist that shaves years off the trip time to Pluto-Charon and the Kuiper belt.
During the flyby, plans call for New Horizons to use its instrument payload, consisting of cameras, spectrometers, radiometers, and space plasma and dust sensors, to make a variety of scientific observations.
New Horizons is proceeding toward a January 2006 launch, with a planned arrival at Pluto and its moon, Charon, in the summer of 2015.
www.swri.edu /9what/releases/JEST.htm   (710 words)

  
 BBC NEWS | Science/Nature | Asteroid flyby successful
The dust collector was open and the dust counter from the University of Chicago and dust mass spectrometer from Germany were turned on.
Images and information from the flyby period will be transmitted from the spacecraft through the coming week.
Stardust's scientists and engineers are analysing the data to maximise the chances of success during the 2004 encounter with Comet Wild 2.
news.bbc.co.uk /2/hi/science/nature/2395805.stm   (317 words)

  
 The Sagan Criteria for Life Revisited
Galileo's flyby of Earth was just the beginning of the first-ever control experiment in astrobiological remote sensing.
The Galileo flybys showed that we know how to identify life at a distance, at least the kinds of life we're familiar with here on Earth.
The example of porphyrins on the Moon is particulary intriguing in the context of the Galileo flybys and Sagan's subsequent criteria for life.
science.nasa.gov /newhome/headlines/ast21may99_1.htm   (2086 words)

  
 Universe Today - Cassini's First Flyby of Dione
The spacecraft came within just 81,000 kilometres (50,600 miles) of the moon and sent back a stream of close up images of its strange surface, which are now being analyzed by scientists.
The surface temperature of Dione is very similar to that of Titan at -186 degrees centigrade, and cryogenic activity is known to have helped shape the moon’s surface, although, unlike Titan, Dione has no known atmosphere.
The Cassini flyby this week has helped to confirm that some time in the moon’s past there were two episodes of cryo-volcanic flooding widely spaced in time that affected different regions.
www.universetoday.com /am/publish/cassini_first_dione_flyby.html?15122004   (683 words)

  
 ESA Science & Technology: No. 37 - Report on Earth Flyby
All activities were successfully carried out, including operations of the spacecraft and payload in proximity of the Earth and the first in-flight test of the Asteroid Flyby Mode using the Moon as a target.
The spacecraft was gradually configured for the Earth swing-by, including activation of the fourth Reaction Wheel on 25 February, switching of the RF link from X-band to S-band on 27 February, and on 2 March from High Gain to Low Gain antenna, etc.
After closest approach with the Earth (at an altitude of 1954 Km at 22:09 on 4th March), the spacecraft was commanded at 01:00 on 5 March into Asteroid Flyby Mode, using the Navigation Camera pointed on the Moon to control the attitude.
sci.esa.int /science-e/www/object/index.cfm?fobjectid=36808   (614 words)

  
 CNN - Technology - Galileo survives 'white knuckle' flyby of Io - November 26, 1999
Results from the previous flyby -- an October 10 pass at an altitude of 380 miles (611 km) -- were unveiled by NASA this week.
As NASA and engineers had expected after the successful but still hazardous October flyby, the craft was bathed in strong radiation near Io.
"We were prepared," he said, "because we knew this high-radiation Io flyby posed a risk to spacecraft components, and in fact we saw some glitches during the October 10 flyby.
cnn.com /TECH/space/9911/26/galileo.02   (478 words)

  
 Stardust | JPL | NASA
An attitude maintenance turn was performed on Tuesday, December 5, 2000 to keep the spacecraft's forward-looking medium gain antenna pointed toward the Earth while maintaining adequate sunlight on the spacecraft's power-generating solar arrays.
Five Navigation Camera images were taken to assess camera performance after the 2nd heating sequence where both the CCD and mirror motor heaters were turned on for about 1 month.
Computer animations of the Earth Flyby by Stardust are available here.
stardust.jpl.nasa.gov /news/ega   (501 words)

  
 Planetary Society: Galileo's Io Flyby, August '01
As information from the flyby trickles back via the spacecraft's crippled antenna, scientists are anxious to see if Galileo flew through any volcanic dust.
This would be the first time a spacecraft from Earth has directly encountered debris from an active volcano on another celestial body.
Indications are that the spacecraft was able to record about three fourths of the data that it was programmed to collect during the Io flyby.
www.planetary.org /html/news/articlearchive/headlines/2001/ioflyby8_5.html   (534 words)

  
 Galileo survives volcanic flyby
During this Io flyby, it appears the radiation did trigger an error of the onboard computer's memory, which put the spacecraft in a "safe mode," halting all non-essential activities while awaiting further commands from the ground.
The flyby took place while Galileo was 598 million kilometers (372 million miles) from Earth.
A second, closer flyby of Io by Galileo is planned for the evening of November 25 Pacific time (November 26 Eastern time) at an altitude of 300 kilometers (186 miles).
science.nasa.gov /newhome/headlines/ast11oct99_2.htm   (796 words)

  
 FlyBy Nav - Flight Planning software for Palm OS computers
In one screen, FlyBy Nav displays track, heading, distance, ground speed, time enroute, ETA, and fuel burn.
When you purchase the program you will be asked for your PUN or Palm ID. This is the name that is displayed when you run the "HotSync®" program on your palm.
No portion of the SkyWriter website, including but not limited to the HTML code, may be copied or redistributed in any manner without the express written consent of the copyright owner.
www.skywritersoft.com /flybynav   (580 words)

  
 Mariner 3-4
This spacecraft completed the first successful flyby of the planet Mars, returning the first pictures of the Martian surface.
The closest approach was 9,846 km from the Martian surface at 01:00:57 GMT 15 July 1965.
The images taken during the flyby were stored in the onboard tape recorder.
www.astronautix.com /craft/marner34.htm   (1165 words)

  
 Galileo pays a New Year's visit to Europa   (Site not responding. Last check: 2007-10-10)
Because Galileo passed behind Europa during the flyby, its radio signal to Earth was blocked for a while.
Observations of three of Jupiter's small natural satellites -- Amalthea, Thebe, and Metis -- are planned for Galileo later on Jan. 3, with observations of Jupiter's volcanic moon Io on the spacecraft's agenda for the early morning of Jan. 4.
Another Io flyby is planned for February 22, with flybys of Ganymede on May 30 and December 28, and joint observations of Jupiter with the Cassini spacecraft in December 2000.
spacescience.com /headlines/y2000/ast03jan_1.htm   (583 words)

  
 UMC CECS Flyby and Mesh Simplification   (Site not responding. Last check: 2007-10-10)
Flyby is used to visualize terrain and weather data.
Initial work performed on Flyby at the University of Missouri has involved converting its graphics/user-interface from IrisGL to OpenGL/Motif.
In addition, FlyBy can read files over the Internet using HTTP or FTP, create VRML models, and create digital movies.
meru.rnet.missouri.edu /mvl/flyby   (93 words)

  
 ESA - Rosetta - The long trek   (Site not responding. Last check: 2007-10-10)
Science data recorded onboard are transmitted to Earth after the flyby.
Operations are similar to those during the first Earth flyby.
Flyby operations are similar to the Otawara flyby, although at a greater distance (about 3500 km).
www.esa.int /esaMI/Rosetta/ESAU8F7708D_0.html   (398 words)

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