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Official results of the first analyses of the Voyager encounter data are traditionally published in Science, the magazine of the American Association for the Advancement of Science Science 204 (June 1,1979) pp. 913-924 and 945-1008 (Voyager 1 at Jupiter) Science 206 (November 23,1979) pp. 925-996 (Voyager 2 at Jupiter) Science 212 (April 10, 1981) pp. 159-243 (Voyager 1 at Saturn) Science 215 (January 29,1982) pp. 459 and 499-594 (Voyager 2 at Saturn) Science 233 (July 4,1986) pp. 1-132...

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Triton may very well prove to be one of the most interesting places in the solar system. It certainly has the credentials. The moon orbits Neptune in a retrograde or backwards direction, opposite to the planet's rotation on its own axis. Triton's orbit is also tilted with respect to Neptune's equator by some 20 degrees. Various scientists (Issei Yamamoto in 1934, Raymond Lyttleton in 1936, and Gerard Kuiper in 1956) have proposed that some cataclysmic event in the past flung Pluto into its own...

Many Thanks

But where do we begin Over 3000 different people have contributed to the Voyager success, at one time or another, over the past nearly two decades. In fact, the number is even larger if we thank all of the science and news writers, and other media people as well, who thought enough of the Voyager story to share it with their reading and viewing audiences. As shown in Figure 3-4, several hundred folks are even helping out for the Neptune encounter, many of whom...

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Narrow-angle TV camera to shoot satellite-star images until a few days before closest approach, these real-time navigators can estimate Triton's position relative to Neptune to 100 km (62 mi) or better. This is equivalent to locating the finish line for the marathon to an accuracy of 1 40 of an inch. Okay, so we know where everything is. What's our master plan We have limited resources and a rigid time schedule, but we want the greatest possible mission return. Voyager's Mission Planning Office...

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Right after the CRSMVR, the gyros are turned off and Voyager initiates a routine that determines the orientation of the MAG boom itself in bending and twisting within two degrees. The remainder of B901 (another week) includes more of the repetitive observations already described. At roughly N-63d 20h, the transmission of CCS load B902 begins arriving at the spacecraft, having been sent some 3h 58m earlier from Earth. A little less than one day later, B901 clocks out and lets B902 take control...

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(BML 6) is removed from the CCS late in B921 to free up much-needed memory space. At this time, the Navigation Team is working quickly to solve for the TCM B19 tweak values. By now, the uncertainties that everyone fussed over for so many years are dropping precipitously, thanks to Voyager. Neptune's position is now known three times more accurately than just two weeks earlier Triton three to six times better, depending on the component. Time of arrival is one-third better. The value of Triton's...

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People often have humorous ways to view their working interrelationships, and Voyager is no exception early version of ye olde sequence design process . Figure 3-3. People often have humorous ways to view their working interrelationships, and Voyager is no exception early version of ye olde sequence design process . final step by the Sequence Team is to process a CCS load from a text listing of commands to the stream of Is and Os bits which will actually be received n w w w w by the...

Spc Ssg

Voyager 1 reference Voyager 2 reference Scan Converter Spacecraft Event Time Spacecraft Team sometimes, Spacecraft Time Supplementary Experiment Data Record Sequence Team Science Investigation Support Team Signal-to-Noise Ratio Science Operations Coordinator Signal Processing Center Science Steering Group Science Working Group TIME ODay . 7 10 1989 0 J 1 10 GMT SCT T-axis Refer to R-axis To Be Determined Thermal Cycle Trajectory Correction Maneuver Electron Telescope CRS

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ORIGINAL PAGE BLACK and WHITE PHOTOGRAPH Figure 8-1. Goblins, like the spacecraft-munching Great Galactic Ghoul once sketched in fun, when early spacecraft seemed to experience problems when they reached certain distances from the Sun , are lurking everywhere. With well-laid contingency plans, however, we hope to thwart their evil intentions. Artist G.W. Burton. Figure 8-1. Goblins, like the spacecraft-munching Great Galactic Ghoul once sketched in fun, when early spacecraft seemed to...

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TIME -0 Days. 320 00 1989 08 25 0 gt 40 GMT SCT TIME -0 Days. 320 00 1989 08 25 0 gt 40 GMT SCT Figure 2-4. The night of the very day that Johann Galle received Le Verrier's request, he and a graduate assistant, Heinrich d'Arrest, sighted Neptune. This is a copy of the actual star chart used by Galle and d'Arrest to discover the new planet. The square is the position of Neptune predicted byLe Verrier. The circle is the position where Neptune was first observed. HoiaXXIof Berlin Academy's Star Atlas, annotated by J.G. Galle. Courtesy Archenhold-Sternwarte, Berlin, East Germany. Figure 2-4. The night of the very day that Johann Galle received Le Verrier's request, he and a graduate assistant, Heinrich d'Arrest, sighted Neptune. This is a copy of the actual star chart used by Galle and d'Arrest to discover the new planet. The square is the position of Neptune predicted byLe Verrier. The circle is the position where Neptune was first observed. HoiaXXIof Berlin Academy's Star Atlas,...