2 V X 0 GCLP 21R runway true 21R GCLP navaid GCLB -15.50931432 27.78262278 navaid GCTS -16.56916837 28.04651947 navaid TERFE -16.126284 28.182432 navaid ARTEM -16.034145 28.409037 navaid GCXO -16.35006277 28.48352064