Sentence examples for both orbit types is from inspiring English sources
After a short description of the Swarm GPS data characteristics, the adopted POD strategy for both orbit types is explained and first PSO results from more than one year of Swarm GPS data are presented.
The POD strategy for both orbit types is based on an undifferenced approach and uses the ionosphere-free combination of GPS observations along with precise GPS orbits and high-rate 5-s clocks computed by the Center for Orbit Determination in Europe (CODE) (Bock et al. 2009).
The bottom panels of Figs. 5 and 6 show that the SLR residuals of Swarm-C for both orbit types are lower.
The characteristics of the proposed orbit type are examined through numerical techniques including high-fidelity perturbation models.
This indicates that although the additional observations at elevations up to 86° or 88° are noisier, including them in the POD improves the orbit accuracy for both orbit types.
Both the reduced-dynamic and kinematic orbits show lower SLR residuals, which indicates that the updated tracking loops also improve the POD performance for both orbit types.
However, by limiting the range of possible orbit types it is possible to simplify the problem and obtain reasonable orbit distribution estimates.
For special demands, some notable orbit types have been developed by human, including the Molniya orbits, which have a relatively high eccentricity up to about 0.7, and a period of 12 h.
Both types are represented here.
Both types are found in most bones.
