airmass zenith dist. (Z) zenith dist. Sec. Z

(radians) (degrees)
1.0000 0.0000 0.0000 1.0000
1.0002 0.0175 1.0027 1.0002
1.0006 0.0349 1.9996 1.0006
1.0014 0.0524 3.0023 1.0014
1.0024 0.0698 3.9992 1.0024
1.0038 0.0873 5.0019 1.0038
1.0055 0.1047 5.9989 1.0055
1.0075 0.1222 7.0015 1.0075
1.0098 0.1396 7.9985 1.0098
1.0124 0.1571 9.0012 1.0125
1.0154 0.1745 9.9981 1.0154
1.0187 0.1920 11.0008 1.0187
1.0223 0.2094 11.9977 1.0223
1.0263 0.2269 13.0004 1.0263
1.0306 0.2443 13.9974 1.0306
1.0352 0.2618 15.0000 1.0353
1.0402 0.2793 16.0027 1.0403
1.0456 0.2967 16.9997 1.0457
1.0514 0.3142 18.0023 1.0515
1.0575 0.3316 18.9993 1.0576
1.0640 0.3491 20.0020 1.0642
1.0710 0.3665 20.9989 1.0711
1.0784 0.3840 22.0016 1.0785
1.0862 0.4014 22.9985 1.0863
1.0944 0.4189 24.0012 1.0946
1.1032 0.4363 24.9981 1.1034
1.1124 0.4538 26.0008 1.1126
1.1221 0.4712 26.9978 1.1223
1.1323 0.4887 28.0004 1.1326
1.1430 0.5061 28.9974 1.1433
1.1543 0.5236 30.0001 1.1547
1.1662 0.5411 31.0027 1.1667
1.1788 0.5585 31.9997 1.1792
1.1919 0.5760 33.0024 1.1924
1.2057 0.5934 33.9993 1.2062
1.2202 0.6109 35.0020 1.2208
1.2355 0.6283 35.9989 1.2361
1.2515 0.6458 37.0016 1.2522
1.2683 0.6632 37.9986 1.2690
1.2860 0.6807 39.0012 1.2868
1.3046 0.6981 39.9982 1.3054
1.3241 0.7156 41.0009 1.3250
1.3446 0.7330 41.9978 1.3456
1.3662 0.7505 43.0005 1.3673
1.3890 0.7679 43.9974 1.3901
1.4129 0.7854 45.0001 1.4142
1.4381 0.8029 46.0028 1.4396
1.4647 0.8203 46.9997 1.4663
1.4928 0.8378 48.0024 1.4945
1.5224 0.8552 48.9993 1.5242
1.5537 0.8727 50.0020 1.5558
1.5868 0.8901 50.9990 1.5890
1.6218 0.9076 52.0016 1.6243
1.6589 0.9250 52.9986 1.6616
1.6983 0.9425 54.0013 1.7014
1.7402 0.9599 54.9982 1.7434
1.7847 0.9774 56.0009 1.7883
1.8321 0.9948 56.9978 1.8360
1.8826 1.0123 58.0005 1.8871
1.9367 1.0297 58.9975 1.9415
1.9945 1.0472 60.0001 2.0000
2.0565 1.0647 61.0028 2.0628
2.1232 1.0821 61.9998 2.1300
2.1949 1.0996 63.0024 2.2029
2.2724 1.1170 63.9994 2.2811
2.3563 1.1345 65.0021 2.3664
2.4473 1.1519 65.9990 2.4585
2.5464 1.1694 67.0017 2.5595
2.6547 1.1868 67.9986 2.6693
2.7733 1.2043 69.0013 2.7906
2.9039 1.2217 69.9983 2.9236
3.0483 1.2392 71.0009 3.0717
3.2086 1.2566 71.9979 3.2357
3.3876 1.2741 73.0006 3.4204
3.5887 1.2915 73.9975 3.6274
3.8159 1.3090 75.0002 3.8637
4.0748 1.3265 76.0029 4.1344
4.3720 1.3439 76.9998 4.4453
4.7164 1.3614 78.0025 4.8107
5.1198 1.3788 78.9994 5.2406
5.5979 1.3963 80.0021 5.7600
6.1723 1.4137 80.9990 6.3918
6.8728 1.4312 82.0017 7.1868
7.7408 1.4486 82.9987 8.2040
8.8320 1.4661 84.0013 9.5689
10.2106 1.4835 84.9983 11.4698
11.8831 1.5010 86.0010 14.3390
13.3330 1.5184 86.9979 19.0940