USGS

Venus Mapping White Paper

Open-File Report 95-519

Table 1D

Venus latitude, left-looking stereo incidence angle, and Muhleman correction in decibels. South latitudes are negative, north latitudes are positive.

[correction factor can be added to Magellan normalized cross section values to obtain backscatter coefficient ]

Lat
Ang
Factor
Lat
Ang
Factor
Lat
Ang
Factor
-90
*****
*****
-30
17.50
-8.03
30
23.90
-11.02
-89
*****
*****
-29
17.76
-8.17
31
23.69
-10.93
-88
*****
*****
-28
18.03
-8.30
32
23.46
-10.84
-87
*****
*****
-27
18.29
-8.44
33
23.22
-10.74
-86
*****
*****
-26
18.56
-8.57
34
22.98
-10.63
-85
*****
*****
-25
18.83
-8.71
35
22.71
-10.52
-84
*****
*****
-24
19.10
-8.84
36
22.44
-10.40
-83
*****
*****
-23
19.38
-8.98
37
22.17
-10.28
-82
*****
*****
-22
19.65
-9.11
38
21.89
-10.16
-81
*****
*****
-21
19.93
-9.25
39
21.61
-10.03
-80
*****
*****
-20
20.20
-9.38
40
21.31
-9.89
-79
*****
*****
-19
20.46
-9.50
41
21.00
-9.75
-78
*****
*****
-18
20.73
-9.63
42
20.68
-9.60
-77
*****
*****
-17
21.00
-9.75
43
20.36
-9.45
-76
11.55
-4.43
-16
21.26
-9.87
44
20.04
-9.30
-75
11.96
-4.71
-15
21.52
-9.99
45
19.73
-9.15
-74
12.37
-4.98
-14
21.77
-10.10
46
19.40
-8.99
-73
12.69
-5.20
-13
22.03
-10.22
47
18.94
-8.77
-72
12.94
-5.36
-12
22.27
-10.32
48
18.70
-8.64
-71
13.14
-5.49
-11
22.52
-10.43
49
18.39
-8.49
-70
13.34
-5.62
-10
22.74
-10.53
50
18.06
-8.32
-69
13.45
-5.69
-9
22.98
-10.63
51
17.72
-8.15
-68
13.56
-5.76
-8
23.21
-10.73
52
17.39
-7.97
-67
13.63
-5.80
-7
23.42
-10.82
53
17.06
-7.79
-66
13.69
-5.84
-6
23.62
-10.90
54
16.75
-7.63
-65
13.71
-5.85
-5
23.81
-10.99
55
16.44
-7.46
-64
13.73
-5.86
-4
24.00
-11.06
56
16.13
-7.28
-63
13.73
-5.86
-3
24.19
-11.14
57
15.84
-7.12
-62
13.73
-5.86
-2
24.36
-11.21
58
15.55
-6.96
-61
13.72
-5.86
-1
24.53
-11.28
59
15.28
-6.80
-60
13.71
-5.85
0
24.68
-11.34
60
15.02
-6.65
-59
13.70
-5.85
1
24.82
-11.40
61
14.77
-6.50
-58
13.70
-5.85
2
24.95
-11.45
62
14.54
-6.36
-57
13.70
-5.85
3
25.08
-11.50
63
14.33
-6.23
-56
13.71
-5.85
4
25.19
-11.55
64
14.13
-6.11
-55
13.72
-5.86
5
25.28
-11.59
65
13.96
-6.01
-54
13.75
-5.88
6
25.37
-11.62
66
13.80
-5.91
-53
13.78
-5.90
7
25.45
-11.65
67
13.66
-5.82
-52
13.83
-5.92
8
25.52
-11.68
68
13.55
-5.75
-51
13.88
-5.96
9
25.58
-11.70
69
13.45
-5.69
-50
13.95
-6.00
10
25.63
-11.72
70
13.39
-5.65
-49
14.03
-6.05
11
25.65
-11.73
71
13.34
-5.62
-48
14.10
-6.10
12
25.67
-11.74
72
13.32
-5.61
-47
14.21
-6.16
13
25.67
-11.74
73
13.32
-5.61
-46
14.32
-6.23
14
25.68
-11.74
74
13.34
-5.62
-45
14.44
-6.30
15
25.65
-11.73
75
13.38
-5.64
-44
14.58
-6.39
16
25.63
-11.72
76
13.44
-5.68
-43
14.72
-6.47
17
25.58
-11.70
77
13.50
-5.72
-42
14.89
-6.57
18
25.53
-11.68
78
13.58
-5.77
-41
15.06
-6.67
19
25.46
-11.66
79
13.67
-5.83
-40
15.24
-6.77
20
25.38
-11.62
80
13.74
-5.87
-39
15.43
-6.88
21
25.28
-11.59
81
13.82
-5.92
-38
15.63
-7.00
22
25.18
-11.54
82
13.87
-5.95
-37
15.84
-7.12
23
25.06
-11.50
83
13.91
-5.97
-36
16.05
-7.24
24
24.93
-11.44
84
13.89
-5.96
-35
16.28
-7.37
25
24.79
-11.39
85
13.82
-5.92
-34
16.51
-7.49
26
24.63
-11.32
86
13.67
-5.83
-33
16.74
-7.62
27
24.48
-11.26
87
13.41
-5.66
-32
16.99
-7.75
28
24.29
-11.18
88
12.67
-5.18
-31
17.24
-7.89
29
24.10
-11.10
89
*****
*****