~40
Vl
~
a.>
-'
a.>
5- 30
c:
o
. iii
2i. 20
u 10
c:
....
.2:
- Q
~ 150
en
~
CIJ
-'
CLl
E
~
§ 100
:;:i
Ul
o
0c:
50
Al titude : 1330 km
Sate llite: TOPEX
Pe rturbations : secular
D "''''''~''' JGM - 3 vs . GR IM4- S4P
- - - JGM - 3 vs . TEG- 2B
~ JGM - 3 vs . JGM - 2
2 0
40
60
80
100
120
140
160
Inclination I (deg)
Altitude : 1330 km
Sa lellite : TOPEX
Perturbations: long periodic
20
40
60
80
Inclination
OIH HHl JGM - 3 vs. GE M- T3
.......... JGM-3 vs. GRIM4 - S4P
- - - JGM-3 vs . TEG - 2B
~ JGM-3 vs. JGM - 2
100
120
140
160
I (de g)
D G .£l .. 6 ...... JGM - 3
GRIM4-S4P
...... 40
Al ti tude : 1330 km
~
Satellite : TOPEX
- - - JGM - 3
~JGM-3
~
Perturbations: total
a.>
-.S 30
c:
o
20
40
60
80
100
120
Inclination I (deg)
vs .
vs . TEG- 2B
vs. JGM- 2
140
160
180
180
180
Fig. 3. Differences in satellite positions calculated using tVvO different models for the orbit at the altitude:
1330 kilometers (TOPEX altitude).
205