  Three possible applications of lunar laser ranging to space geodesy are
studied. First, the determination of daily Earth orientation parameters (UT0
and variation of latitude), which is rarely used nowadays in presence of
all-year VLBI, SLR, and GNSS data. The second application is the determination
of two (out of three) lunar orientation parameters, i.e. daily corrections to
the rotational ephemeris of the Moon. It may be of importance for the future
lunar satellite-based navigational systems. The third application is the tie of
ephemeris frame (BCRF) to the ICRF. It has been studied before, though in this
work it is extensively compared to another realization of the same tie,
obtained by spacecraft VLBI observations; also, two different EOP series and
two different models of tidal variations of geopotential are applied, with
different outcomes on the tie.
  The EPM lunar-planetary ephemeris, along with its underlying dynamical model
and software, was used to obtain the presented results. All available
observations were processed, since the earliest made at the end of 1969 at the
McDonald observatory till the end of July 2019 (Matera, Grasse and also
Wettzell observatory which began to provide data in 2018). The results and some
open questions are discussed.
