adjective satellite (s)

• going directly ahead from one point to another without veering or turning aside(adj.all)

  Example:
  A straight and narrow tree-lined road unswerving across the lowlands.
  

  Synonym:
  undeviating
  

  source: wordnet30
• firm and dependable especially in loyalty(adj.all)

  Example:
  Unswerving devotion.
  Unswerving allegiance.
  

  Synonym:
  staunch, steadfast
  

  source: wordnet30