Table 2. Calibration Factors for GLGM-2 (LGM-309a) using the method of Lerch [1991] .
Satellite Data
Description
GLGM-2
LGM-320
Calibrations
Calibrations
W-5
Indin. = 85°
1.25
1.13
LO-4, set 1
Periapse= 2700 kIn
LO-4, set 2
Periapse = 75 km
1.25
0.90
LO-2, set 1
Indin. = 12°
1.36
1.31
LO-2, set 2
Indin. = 17°
1.63
1.39
LO-3, set 1
Eccen. = 0.3
1.55
1.17
LO-3, set 2
Eccen. = 0.04
1.82
1.40
Clementine
Indin. = 90°
1.53
1. 17
Apollo-15 ss.
Indin. = 152°
1.53
1.56
Apollo-16 ss.
Indin. = 169°
1.18
0.90
RESULTS
Power of the coefficients
The coefficient variances at degree I, relation from Kaula [1966],
(1)
10·4 ~--~r----.----.-----,----.-----r----~
i
I
I
I
!
I
10' - +4--t--I---+-10-' -I ~-I-l-T-I1 o· 7 .. - ...... -.t
l
................ _. _ ..... _ ....... , . . .
I
.. + . . . . --.-I
I~
I
_ _ GLGM·2 (Lemoine 8t aI., 1995).
10.8
_LGM·309b (Same as GLGM· 2:
•...•. _._._ •••.. 1.. ............ _ . . ,,..,..-....r
Un constraint 01 30 • 10· ' /1') .
I
I
i
-Power Law Constraint (15 . , 0 . 5 /1') . i
I
i
l
- - Lun60d (Konopllv et 81., 1993).
I ,
10.9 ~==~==~~====~==~L-__ ~ ____ -L ____ ~
o
10
20
30
40
50
60
70
Figure 1: Coefficient degree variances for lunar gravity models from GLGM-2 [Lemoine et
al., 1995], Lun60d [Konop/iv et al., 1993], shown together with the Kaula power law for
the Moon of 15 x 10- 5 /12.
181