Interplanetary spacecraft telecommunication systems

Reiff, G. A.

doi:10.1109/mspec.1966.5216588

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…1 The basic measurements are the changes in frequency, phase, and power level of the S-band telecommunication signal coupled with precisely determined orbital parameters. The use of more than one radio frequency Presented as Paper 68-35 at the AIAA 6th Aerospace Sciences Meeting, New York, January 22-24, 1968; submitted December 30,1968; revision received February 11,1969.…”

Section: S Ince 1965 Spacecraft Radio Propagation Experimentsmentioning

confidence: 99%

Radio propagation experiments with interplanetary spacecraft.

Reiff

1969

Journal of Spacecraft and Rockets

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The engineering required to adapt Mariner V for radio exploration of Venus is described. This work provides a good example of the unexpected, subtle interactions that arise when a specific space flight mission is being developed. The basic theory and design of spacecraft propagation experiments are reviewed. Results obtained from these experiments with the Pioneers and Mariners have been the source of additional knowledge on the environments of the sun, Mars, and Venus. These results show that new ways of improved precision have been found for using radio propagation in the exploration of the solar system. NomenclatureA, B = constants c = phase velocity in vacuum (speed of light) / = radiofrequency g -local acceleration due to gravity H = scale height M -mean molecular weight N = refractivity n = electron density p = pressure Q = a function of the abundance of constituents R* = universal gas constant r = distance between spacecraft and terrestrial station T = absolute temperature t = time V p = phase velocity in gas p = density <£ = total phase difference ( f >N = phase difference due to nonvacuum phase velocity

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Section: S Ince 1965 Spacecraft Radio Propagation Experimentsmentioning

confidence: 99%

Radio propagation experiments with interplanetary spacecraft.

Reiff

1969

Journal of Spacecraft and Rockets

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Directed Aldol Condensations: β‐Phenylcinnamaldehyde

Wittig

Hesse

2003

Organic Syntheses

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Directed aldol condensations: β‐phenylcinnamaldehyde reactant: 99.2 g. (1.00 mole) of freshly distilled cyclohexylamine reactant: 44.1 g. (1.00 mole) of freshly distilled acetaldehyde intermediate: N ‐ethylidenecyclohexylamine solvent: 2.53 g. (3.60 ml. or 0.0250 mole) of pure diisopropylamine intermediate: N ‐(3‐hydroxy‐3,3‐diphenylpropylidene)cyclohexylamine product: β‐phenylcinnamaldehyde

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