In January, 1995, NOAA GL and the Institute for Applied Geodesy (IfAG) in Germany installed two cryogenic gravity meters at TMGO and began continuous monitoring of the relative gravity signal.
The systems have short-term resolution of better than 50 nGal for 12 hour averages, and resolution better than 300 nGal for one minute averages. The systems will be used in research directed at high precision modelling of environmental gravity signals, earth tide modelling, and efforts to detect free oscillations of the earth's core.
In its first few years of operation, TMGO has become a major center for intercomparisons of gravity meters, with space for up to nine instruments operating simultaneously on separate and isolated observing piers.