GGM

DGM-1s

DIR-R4

TIM-R4

Eigen-6C3

DIR-R5

TIM-R5

Eigen-6C4

SPW-R4

Name in ICGEM

DGM-1S

GO_CONS_GCF_2_DIR_R4

GO_CONS_GCF_2_

TIM_R4

EIGEN-6C3stat

GO_CONS_GCF_2_

DIR_R5

GO_CONS_GCF_2_

TIM_R5

EIGEN-6C4

GO_CONS_GCF_2_

SPW_R4

Maximum d/o

250

260

250

1949

300

280

2190

280

Semi-major axis a [m]

6,378,136.60

6,378,136.46

6,378,136.30

6,378,136.46

6,378,136.46

6,378,136.46

6,378,136.46

6,378,136.30

GOCE data

14 months

~28 months

~26.5 months

~36 months

~42 months

~42 months

~42 months

~33 months

GRACE data

7 years

~7 years

-

9 years

10 years

-

9 years

-

LAGEOS-1/2 SLR data

-

~25 years

-

25 years

25 years

-

25 years

-

Terrestrial data

-

-

-

DTU12 GGM

+ EGM2008

-

-

DTU12 GGM

+ EGM2008

-

Kaula’s regularization d/o

179 onward

200 onward

180 onward

-

180 onward

200 onward

-

-

Time of releasing

2013

Mar. 2013

Mar. 2013

2014

Jul. 2014

Jul. 2014

2014

2014

Reference

[12]

[31]

[4]

[10]

[31]

[32]

[11]

[33]