To get their prime meridians pointing at Jupiter, use the following RotationOffsets:
Io: RotationOffset 219
Europa: RotationOffset 53
Ganymede: RotationOffset 60
Callisto: RotationOffset 282
Unfortunately, although Io, Ganymede and Callisto now have texture maps with central prime meridians, Europa hasn't been corrected - it's still 180 degrees out of alignment. To fix this, either use my corrected texture, "europa180.jpg", or add 180 degrees to Europa's RotationOffset above.
2) Although the rotation period for the Great Red Spot in System II is now the default setting in 1.2.5, the System III RotationOffset is still used. To correctly align the GRS using the default "jupiter.jpg" texture, use the following settings in solarsys.ssc:
Code: Select all
RotationPeriod 9.927953 # System II (for GRS)
# RotationPeriod 9.924920 # System III (radio emissions)
Obliquity 2.222461
EquatorAscendingNode -22.203
RotationOffset 16 #jupiter.jpg
# RotationOffset 305.40 # System III
Grant