SP-474 Voyager 1 and 2 Atlas of Six Saturnian Satellites

 

[5] PART I

Mimas

 

Diameter

394 km (245 miles)

Density

1.4

Albedo

0.6

Distance from Saturn

188224 km (116957 miles)

Orbital period

23 hr, 8 min, 20 sec

Voyager 1 closest approach

88440 km (54 954 miles)

Voyager 1 pictures used in mapping

9

Voyager 2 closest approach

309 990 km (192 618 miles)

Voyager 2 pictures used in mapping

0

 

Mimas is the smallest and innermost of the spherical satellites of Saturn. Its orbit lies between the newly discovered Rings G and E. Its most distinctive feature is a giant crater 130 km in diameter, nearly one-third the diameter of Mimas itself. The walls of the crater have an average height of 5 km, and the crater may be more than 10 km deep. It is nearly centered on the leading hemisphere of Mimas. Smaller craters are abundant and appear to be more or less uniformly distributed.

 

[6] Figure 1-1. Resolution of Voyager pictures on Mimas in terms of aerial coverage.

Figure 1-1. Resolution of Voyager pictures on Mimas in terms of aerial coverage.

[7] Figure 1-2. Index of Voyager 1 and 2 pictures used to compile the maps of Mimas. Picture numbers indicate the substract point at the time the picture were taken. Contour lines indicate the approximate resolution of available images in kilometers per picture element. (See also fig. 1-1).

Figure 1-2. Index of Voyager 1 and 2 pictures used to compile the maps of Mimas. Picture numbers indicate the substract point at the time the picture were taken. Contour lines indicate the approximate resolution of available images in kilometers per picture element. (See also fig. 1-1).

[8] Figure 1-3. Maps of Mimas on conformal projections (map I-1489).

Figure 1-3. Maps of Mimas on conformal projections (map I-1489).

[9] Figure 1-4. Maps of the anti-Saturn-facing hemisphere of Mimas on a Lambert azimuthal equal-area projection. Nomenclature is not shown, to avoid obscuring detail. (a) Scale 1:2 580 000 (1mm2= 6.648 km2; 1 in2 =~1656 mi2). (b) Scale 1:10 000 000 (1 mm2 = 100 km2; 1 in2 = ~25 000mi2).

Figure 1-4. Maps of the anti-Saturn-facing hemisphere of Mimas on a Lambert azimuthal equal-area projection. Nomenclature is not shown, to avoid obscuring detail.

[10] Figure 1-5. Maps of the Saturn-facing hemisphere of Mimas on a Lambert azimuthal equal-area projection. Nomenclature is not shown, to avoid obscuring detail. (a) Scale 1:2 580 000 (1mm2= 6.648 km2; 1 in2 =~1656 mi2). (b) Scale 1:10 000 000 (1 mm2 = 100 km2; 1 in2 = ~25 000mi2).

Figure 1-5. Maps of the Saturn-facing hemisphere of Mimas on a Lambert azimuthal equal-area projection.

[11] Figure 1-6. Picno 0907S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

Picno

0907S1-001

FDS

34929.03

Range, km

791 531

Subspacecraft latitude/longitude, degrees

-2/96

Subsolar latitude/longitude, degrees

5/135

Resolution, km/pixel

7

Filter size, pixels

15 x 15

Filter size, km

110

Scale

1:5 000 000

Figure 1-6. Picno 0907S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

[12] Figure 1-7. Picno 1004S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

Picno

1004S1-001

FDS

34930.40

Range, km

656 422

Subspacecraft latitude/longitude, degrees

-4/115

Subsolar latitude/longitude, degrees

5/156

Resolution, km/pixel

6

Filter size, pixels

15 x 15

Filter size, km

91

Scale

1:5 000 000

Figure 1-7. Picno 1004S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

[13] Figure 1-8. Picno 1088S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

Picno

1088S1-001

FDS

34932.04

Range, km

546 552

Subspacecraft latitude/longitude, degrees

-6/132

Subsolar latitude/longitude, degrees

5/173

Resolution, km/pixel

5

Filter size, pixels

15 x 15

Filter size, km

76

Scale

1:5 000 000

Figure 1-8. Picno 1088S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

[14] Figure 1-9. Picno 1194S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

Picno

1194S1-001

FDS

34933.50

Range, km

424 514

Subspacecraft latitude/longitude, degrees

-10/156

Subsolar latitude/longitude, degrees

5/196

Resolution, km/pixel

4

Filter size, pixels

41 x 41

Filter size, km

161

Scale

1:5 000 000

Figure 1-9. Picno 1194S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

[15] Figure 1-10. Picno 1339S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

Picno

1339S1-001

FDS

34936.15

Range, km

302 106

Subspacecraft latitude/longitude, degrees

-18/195

Subsolar latitude/longitude, degrees

5/227

Resolution, km/pixel

2

Filter size, pixels

41 x 41

Filter size, km

114

Scale

1:5 000 000

Figure 1-10. Picno 1339S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

[16] Figure 1-11. Picno 1446S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

Picno

1446S1-001

FDS

34938.02

Range, km

249 646

Subspacecraft latitude/longitude, degrees

-26/228

Subsolar latitude/longitude, degrees

5/249

Resolution, km/pixel

2

Filter size, pixels

41 x 41

Filter size, km

94

Scale

1:5 000 000

Figure 1-11. Picno 1446S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

[17] Figure 1-12. Picno 1462S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

Picno

1462S1-001

FDS

34938.18

Range, km

244 121

Subspacecraft latitude/longitude, degrees

-27/232

Subsolar latitude/longitude, degrees

5/253

Resolution, km/pixel

2

Filter size, pixels

51 x 51

Filter size, km

115

Scale

1:5 000 000

Figure 1-12. Picno 1462S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

[18] Figure 1-13. Picno 1598S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

Picno

1598S1-001

FDS

34940.34

Range, km

208 440

Subspacecraft latitude/longitude, degrees

-37/271

Subsolar latitude/longitude, degrees

5/282

Resolution, km/pixel

2

Filter size, pixels

57 x 57

Filter size, km

110

Scale

1:5 000 000

Figure 1-13. Picno 1598S1-001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

[19] Figure 1-14. Picno 0025S1+001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

Picno

0025S1+000

FDS

34944.21

Range, km

127 341

Subspacecraft latitude/longitude, degrees

-66/321

Subsolar latitude/longitude, degrees

5/329

Resolution, km/pixel

1

Filter size, pixels

51 x 51

Filter size, km

60

Scale

1:5 000 000

Figure 1-14. Picno 0025S1+001. (a) Unfiltered image. (b) High-pass filtered image. (c) Perspective grid.

previousindexnext