| 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] |