East–west stationkeeping of satellite orbits with resonant tesseral harmonics

2000 ◽  
Vol 46 (1) ◽  
pp. 1-15 ◽  
Author(s):  
Todd A. Ely ◽  
Kathleen C. Howell

The values of lumped harmonics from the analyses of 18 satellite orbits at 14th-order resonance are used to determine individual tesseral harmonics of order 14 in the Earth’s gravity field. Eight C and five S coefficients are determined for odd degree and six C , S pairs for even degree. The results are most useful in providing the only independent test of the values obtained in recent comprehensive geopotential models. The models of the 1980s are generally consistent with the resonance values, which have lower or comparable standard deviations. The new Goddard Earth Model, GEM-T3, and European model, GRIM4-C1 have much lower standard deviations and show significant differences from our values.


1966 ◽  
Vol 25 ◽  
pp. 323-325 ◽  
Author(s):  
B. Garfinkel

The paper extends the known solution of the Main Problem to include the effects of the higher spherical harmonics of the geopotential. The von Zeipel method is used to calculate the secular variations of orderJmand the long-periodic variations of ordersJm/J2andnJm,λ/ω. HereJmandJm,λare the coefficients of the zonal and the tesseral harmonics respectively, withJm,0=Jm, andωis the angular velocity of the Earth's rotation. With the aid of the theory of spherical harmonics the results are expressed in a most compact form.


1999 ◽  
Vol 58 (4) ◽  
pp. 263-272
Author(s):  
Jörg Doll ◽  
Michael Dick

The studies reported here focus on similarities and dissimilarities between the terminal value hierarchies ( Rokeach, 1973 ) ascribed to different groups ( Schwartz & Struch, 1990 ). In Study 1, n = 65 East Germans and n = 110 West Germans mutually assess the respective ingroup and outgroup. In this intra-German comparison the West Germans, with a mean intraindividual correlation of rho = 0.609, perceive a significantly greater East-West similarity between the group-related value hierarchies than the East Germans, with a mean rho = 0.400. Study 2 gives East German subjects either a Swiss (n = 58) or Polish (n = 59) frame of reference in the comparison between the categories German and East German. Whereas the Swiss frame of reference should arouse a need for uniqueness, the Polish frame of reference should arouse a need for similarity. In accordance with expectations, the Swiss frame of reference significantly reduces the correlative similarity between German and East German from a mean rho = 0.703 in a control group (n = 59) to a mean rho = 0.518 in the experimental group. Contrary to expectations, the Polish frame of reference does not lead to an increase in perceived similarity (mean rho = 0.712).


2013 ◽  
Vol 7 (3) ◽  
pp. 319-329
Author(s):  
Yu-lin Lee

This paper aims to explore the appropriation of Deleuzian literary theory in the Chinese context and its potential for mapping a new global poetics. The purpose of this treatment is thus twofold: first, it will redefine the East–West literary relationship, and second, it will seek a new ethics of life, as endorsed by Deleuze's philosophy of immanence. One finds an affinity between literature and life in Deleuze's philosophy: in short, literature appears as the passage of life and an enterprise of health and thus seeks new possibilities of life, which consists in the invention of a new language and a new people. But what kind of health may such a view provide for a non-Western individual, people, literature and culture? This investigation further appeals to the medium of translation. This paper argues that the act of translation functions as a means of deterritorialisation that displays continuing variations of a language, and through translation, Deleuze's clinical and critical aspects of literature promote a transversal poetics that transcends the binary, oppositional conception of East–West and an immanent ethics of life that overcomes the sentiment of ressentiment.


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