public static function Faom03($t) {
   $a;

/* Mean longitude of the Moon's ascending node */
/* (IERS Conventions 2003).                    */
   $a = fmod(          450160.398036 +
             $t * ( - 6962890.5431 +
             $t * (         7.4722 +
             $t * (         0.007702 +
             $t * (       - 0.00005939 ) ) ) ), TURNAS ) * DAS2R;

   return $a;
  }