ITSG 2016 | ITSG 2018 | |
---|---|---|
Earth rotation | IERS 2010 | IERS 2010 |
Moon, sun, and planets ephemerides | JPL DE421 | JPL DE421 |
Earth tide | IERS 2010 | IERS 2010 |
Ocean tide | EOT11a | FES2014b, co-estimated |
Pole tide | IERS 2010 (constant mean pole) | IERS 2010 (linear mean pole) |
Ocean pole tide | Desai 2004 (IERS 2010) | Desai 2004 (IERS 2010, linear mean pole) |
Atmospheric tides (S1, S2) | van Dam, Ray (2010) | AOD1B RL06 |
Atmosphere and ocean dealiasing | AOD1B RL05 | AOD1B RL06 |
Relativistic corrections | IERS 2010 | IERS 2010 |
Permanent tidal deformation | Included (zero tide) | Included (zero tide) |
ITSG 2016 | ITSG 2016 RL06 | ITSG 2018 | ITSG 2018 RL05 | |
---|---|---|---|---|
χ1 | 0.35 | 0.31 | 0.35 | 0.32 |
χ2 | 0.51 | 0.30 | 0.41 | 0.56 |
STD [mas] | Min [mas] | Max [mas] | ||||
---|---|---|---|---|---|---|
Series | χ1 | χ2 | χ1 | χ2 | χ1 | χ2 |
ITSG 2016 | 5.48 | 7.28 | −15.91 | −23.15 | 19.46 | 24.25 |
ITSG 2018 | 3.90 | 5.05 | −12.04 | −14.11 | 14.03 | 17.84 |
GAO | 13.71 | 21.76 | −67.01 | −76.18 | 42.90 | 76.10 |
HAM + SLAM | 1.99 | 2.24 | −6.65 | −7.38 | 6.68 | 7.18 |