Affordable Access

Access to the full text

Next Generation Gravity Missions to Address the Challenges of High-Precision Space Gravimetry

Authors
  • Zhamkov, A. S.1
  • Milyukov, V. K.1
  • 1 Sternberg Astronomical Institute, Moscow State University, Moscow, 119992, Russia , Moscow (Russia)
Type
Published Article
Journal
Izvestiya, Physics of the Solid Earth
Publisher
Pleiades Publishing
Publication Date
Mar 01, 2021
Volume
57
Issue
2
Pages
266–278
Identifiers
DOI: 10.1134/S1069351321020130
Source
Springer Nature
Keywords
License
Yellow

Abstract

Abstract—Satellite constellations consisting of two spacecraft (SC) pairs moving in different orbits—the so-called next-generation gravity missions—are analyzed for establishing their optimal orbital parameters providing high spatial and temporal resolution of the Earth’s gravity. Based on the numerical modeling, the SC orbital elements simultaneously satisfying the requirements of smallest changes in intersatellite ranges and largest coverage of the Earth’s surface by the SC sub-satellite tracks are determined. The optimal orbital parameters of multi-pair constellation provide 97% coverage of the Earth’s surface by sub-satellite paths over a 10-day interval with angular resolution of 1° × 1° corresponding to degree n ≈ 200 geopotential decomposition, which is four times as high in terms of spatial resolution and three times as high in terms of temporal resolution as in case of using a single GRACE type constellation.

Report this publication

Statistics

Seen <100 times