DYNAMO is a small multi-instrument payload aimed at characterizing current atmospheric escape, which is still poorly constrained, and improving gravity and magnetic field representations, in order to better understand the magnetic, geologic and thermal history of Mars.
It is aimed at improving gravity and magnetic field resolution, in order to better understand the magnetic, geologic and thermal history of Mars, and at characterizing current atmospheric escape, which is still poorly constrained.
The very low orbital altitude of GOCE significantly improves gravity field recovery from GPS hl-SST data above degree 20, but not for the degrees below 20, where the quality of the spherical harmonic coefficients remains essentially unchanged.
In addition, HKGEOID-2016 is compared with existing models, e.g., HKGEOID-2000 (Luo et al. 2005) and recently published GGMs, such as EIGEN-6C4 (European Improved Gravity Model of the Earth by New Techniques 6C4) and EIGEN-6C3STAT (Förste et al. 2012, 2014), for cross-validation.
You don't strive to improve gravity.
This work improves the gravity tractor asteroid deflection approach by tracking realistic small body shapes with tilted ion engines.
The results show that D-VLBI tracking between two lunar satellites can improve the gravity field recovery remarkably.
Moreover, developing various observational techniques, e.g., GPS, airborne gravimetric measurements, and satellite altimetry missions, can further improve regional gravity fields (Hwang et al. 2006; Jiang and Wang 2016; Wu and Luo 2016).
This process is gaining a lot of relevance these days as one of the best IOR techniques because when CO2 dissolves in heavy oil, it reduces the oil viscosity, increases the oil swelling, improves the gravity segregation of oil and the internal drive energy.
The time-tagging of the data is dependent on the quality of the reconstructed orbits, and so the Level 1B team produced several versions of the intersatellite tracking data, as improved lunar gravity models were developed [ Kruizinga et al., 2013].
To allow the engine to be mounted lower -- reducing a vehicle's center of gravity, improving handling and cutting the risk of a rollover -- engineers ran part of the front driveshaft right through a passage in the oil pan.
