5 1 5 2 1 5 3 2 0 5 0 4 6 2 0 9 5 1 5 2 1 6 1 4 2 0 2 0 1 5 0 9 5 2 5 3 1 6 0 6 1 1 4 4 3 7 0 9 G P S V e c t o r s 8 O b s e r v a t i o n s F r o m S t a D e l t a X V a r i a n c e D e l t a X C o v a r i a n c e X Y T o S t a D e l t a Y V a r i a n c e D e l t a Y C o v a r i a n c e X Z D e l t a Z V a r i a n c e D e l t a Z C o v a r i a n c e Y Z 1 2 5 0 7 7 2 8 6 6 4 E 0 0 5 7 2 3 1 E 0 0 5 1 3 5 7 4 9 9 3 6 0 0 0 0 2 1 3 6 1 9 1 4 E 0 0 5 8 4 8 4 2 4 9 7 9 6 9 E 0 0 5 6 4 6 8 E 0 0 5 1 2 5 2 9 1 6 4 4 4 2 8 1 E 0 0 5 4 4 7 8 E 0 0 5 1 6 4 3 3 7 8 0 4 0 0 0 0 1 4 9 7 1 2 5 2 E 0 0 5 3 0 4 8 7 5 5 5 3 9 7 E 0 0 5 4 5 9 2 E 0 0 5 1 3 4 7 2 5 6 8 5 0 0 0 0 1 0 6 6 6 2 1 1 E 0 0 5 1 5 1 1 7 5 9 7 7 0 0 0 0 2 2 6 5 5 7 2 2 E 0 0 5 1 1 2 7 5 6 4 0 0 0 0 1 2 8 9 9 3 2 9 E 0 0 5 1 3 C h a p t e r 1 C G S u r v e y 6 7 8