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Table 3

Irradiance measurements (108 phot cm-2 s-1) at selected wavelengths from historical records; key indexes for the sources of data from Table 2.

λ(Å) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

304 36 54 50 31 50 36 44 41 38 39 54 114.9 85 93.9 65 49 66 82.8 72 74 77 52.9 39.8 33.0
315 1.2 0.9 1.2
320 1.2 0.9 1.2
334 1.9 4.7 2.9
335 4.2 3.2 0.9 1.3 0.7 2.4 3.1 5.4 3.6 7.5 4.5 23.4 10.6 6.9 8.6 5.2 8.3 1.5
360 3.8 4.7 2.2 3.1
368 12.8 8.8 9.8 7 6.2 6.5 3.5 2.9 2.6
520 1.0 2.8 2.9 2.6 1.7 1.2
538 1.7 1.4 1.1
554 5.9 7.7 6.8 7.2 4.8 4.7 4.8
584 12 12 7.5 5.3 11 4.7 9.3 10 10 9.5 12 14 12 10 15.3 12.8 14.7 14 13 11.6 9.3 7.9
600 1.4 1.6 2.4 1.9 2.0
609 6.0 4.3 6.2 8.3 5.3 8.4 6.0 6.2
625 2.9 2.6 1.1 1.9 1.4 1.9 2.1 2.6 3.6 2.9 2.8 3.2 4.4 3.5 2.7 2.9
630 12 14 8.7 6.7 13 6.6 10 9.7 9.8 11 13 15 12 10 12.6 7.6 14.1 16 15 11.0 11.7 9.4

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