Nutation as derived from latitude observations
نویسندگان
چکیده
منابع مشابه
AN A PRIORI MODEL FOR THE REDUCTION OF NUTATION OBSERVATIONS: A'SVi 994.3 NUTATION SERIES
r • Abst.ra.ct! We discuss the formulation of a new nutation series to be used 'in the reduction of modern space geodetic data. The motivation for devel: oping such a series is to develop a nutation series that has smaller short . period errors than the IAU 1980 nutat ion series and to provide a series that can be used wi th techniques such as the Global Positioning System (GPS) eo • that have ...
متن کاملThe Structure of Prestellar Cores as derived from ISO Observations
Observations of dark cloud cores have been carried out in the midinfrared using ISOCAM and in the far-infrared using ISOPHOT, both aboard the Infrared Space Observatory. The cores are in most cases detected in emission at 200 and 170μm, remain undetected at 90μm and are seen in absorption against the diffuse mid-infrared background at 7μm. The observations are consistent with the cores being pr...
متن کاملLatitude survey observations of neutron monitor multiplicity
[1] We have recently augmented the electronics for our neutron monitor (NM) latitude survey so as to record the elapsed time (dT) between detected neutrons in each proportional tube, in order to examine time correlations in the data as a function of cutoff rigidity and primary spectrum. We quantify the dependence of counting rate on dead time, with particular focus on the longer dead times that...
متن کاملAn analysis of celestial pole offset observations in the free core nutation frequency band
In this study, three empirical Free Core Nutation (FCN) models developed to the present time, MHB2000, Malkin’s and Lambert’s ones, are compared on the basis of representation of variations of the FCN amplitude and phase predicted by these models. It is possible to conclude, that the model of the author provides the most realistic representation of the FCN variations. However, the specified mod...
متن کاملResults of the Ulysses Fast Latitude Scan: Magnetic Field Observations
The rapid crossing of the solar equatorial region by Ulysses as it returned from the south pole resulted in 7 crossings of the heliospheric current sheet between 10“S and 20”N and 10 distinct solar wind interaction regions between 18“S and 22”N. Both the extent of the current sheet and the latitude interval containing the interaction regions are a f~ctor of= 2 less than were observed by Ulysses...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 1959
ISSN: 0074-1809
DOI: 10.1017/s0074180900104073