Crossword Puzzle Orbit segments

Clue: Orbit segments

Orbital segments (ARCS with 4 letters)
Train segments (CARS with 4 letters)
Like a planetary orbit (PERIODIC with 8 letters)
Erstwhile Russian orbiter (MIR with 3 letters)
Orbit feature (APOGEE with 6 letters)
Script segments (SCENES with 6 letters)
Dwarf planet orbited by Gabrielle, before their names were changed (XENA with 4 letters)
Gig segments (MEGS with 4 letters)
Basic orbital path (ELLIPSE with 7 letters)
Planet that Triton orbits (NEPTUNE with 7 letters)