Fish Fillets in Parchment with Asparagus and Orange

Name: Fish Fillets in Parchment with Asparagus and Orange
Yield: 4 Servings
Ingredients: 4 15x15-inch squares parchment paper; 4 5-to 6-ounce fish fillets (such as halibut or cod; each about 1 inch thick); 12 fresh tarragon leaves; 2 tablespoons (1/4 stick) butter, cut into 4 pieces; 1 pound slender asparagus spears, trimmed, cut into 1 1/2-inch pieces; 4 tablespoons orange juice