In this contribution, we present a GPS+ GLONASS+ BeiDou+ Galileo four-system model to
fully exploit the observations of all these four navigation satellite systems for real-time …

Analysis of satellite laser ranging (SLR) data indicates that the Earth's dynamic oblateness
(J2) has undergone significant variations during the past 28 years. The dominant signatures …

We have analyzed Ka‒band range rate (KBRR) and Deep Space Network (DSN) data from
the Gravity Recovery and Interior Laboratory (GRAIL) primary mission (1 March to 29 May …

During the 10 years since the official start of the International GNSS Service (IGS) in 1994
considerable improvements in the processing strategies and modeling of global GPS …

Thermal expansion of radio telescopes has long been recognized as an effect which cannot
be neglected in geodetic and astrometric VLBI data analysis if millimeter accuracy is …

The pericenter shift of a binary system represents a suitable observable to test for possible
deviations from the Newtonian inverse-square law in favor of new weak interactions …

This paper regards small/midsize square sails on which a field of wrinkles appears owing to
the necessary sail-membrane operations before and during the deployment. We collected a …

Radar interferograms provide a map of the phase difference between the reference and
repeat acquisitions modulo 2π. Under ideal conditions, the phase can be unwrapped to …

Geodetic observations are necessary to characterize highly accurate spatial and temporal
changes of the Earth system that relate to sea-level changes. Quantifying the long-term …

We study the x-ray L-shell production from large krypton clusters submitted to ultrashort and
intense laser pulses. The x-ray photon emission pattern appears to be isotropic and the …