中央经线及代号
经度区间
0-6 6-12 12-18 18-24 24-30 30-36 36-42 42-48 48-54 54-60 60-66 66-72 72-78 78-84 84-90 90-96 96-102 102-108 108-114 114-120
中央经线
3 9 15 21 27 33 39 45 51 57 63 69 75 81 87 93 99 105 111 117
代号
1 2 3 4 5 6 7 8 9 10
度带
6度带
11 12 13 14 15 16 17 18 19 20
经度区间（°）
1.5-4.5 4.5-7.5 7.5-10.5 10.5-13.5 13.5-16.5 16.5-19.5 19.5-22.5 22.5-25.5 25.5-28.5 28.5-31.5 31.5-34.5 34.5-37.5 37.5-40.5 40.5-43.5 43.5-46.5 46.5-49.5 49.5-52.5 52.5-55.5 55.5-58.5 58.5-61.5
中央经线（°）
3 6 9 12 15 18 21 24 27 30 33 36 39 42 45 48 51 54 57 60
代号
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
度带
3
61.5-64.5 64.5-67.5 67.5-70.5 70.5-73.5 73.5-76.5 76.5-79.5 79.5-82.5 82.5-85.5 85.5-88.5 88.5-92.5 92.5-95.5 95.5-98.5 98.5-101.5 101.5-104.5 104.5-107.5 107.5-110.5 110.5-113.5 113.5-116.5 116.5-119.5 119.5-122.5
63 66 69 72 75 78 81 84 87 90 93 96 99 102 105 108 111 114 117 120
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40