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- JET PROPULSION LABORATORY
- CALIFORNIA INSTITUTE OF TECHNOLOGY
- NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
- PASADENA, CALIF. 91109
-
-
- PHOTO CAPTION MAGELLAN
- P-38341 MGN-49
- 5/21/91
-
-
- This image compares the best available views of the crater
- Golubkina as of August 1990 (left) and April 1991 (right). The
- crater, 34 kilometers (21.1 miles) in diameter, is named for the
- Russian sculptress Anna Golubkina (1864-1927). It is located at
- about 60.5 degrees north latitude, 287.2 degrees east longitude.
- The area shown is approximately 100 kilometers (62 miles) by 215
- kilometers (133 miles). The left image shows Magellan data from
- the initial test of the radar system (August 1990), overlain on an
- image obtained by the Soviet Venera 15 and 16 spacecraft in 1983-
- 84. The data in the right image were obtained by Magellan in April
- 1991. The new image demonstrates the increase in detail obtained
- by Magellan as compared with Venera. Magellan achieved a ten-fold
- improvement in resolution - 120 meters (400 feet) versus 1.5
- kilometers (0.9 miles), for Venera 15 and 16. The new Magellan
- data provide the first opportunity to "revisit" areas previously
- imaged by the spacecraft. There is no evidence in these images for
- changes in the surface over 243 days.
-