# Subaru Telescope Optical Tertiary Mirror In-Situ Measured Reflectivity # Coated with Aluminum on 2014-12-03 # Opened the vacuum chamber: No information # Measured with Subaru Portable Spectrophotometer (SPS) on 2020-08-10 (2077 days after) # Measured two times # Data between 950 nm and 1650 nm are also available (SPS-XWW). # Contact: Hirofumi Okita (okita14@naoj.org) # # Wavelength (nm) #1 #2 1000 89.11 87.88 998 87.69 88.67 996 88.87 88.53 994 88.18 89.05 992 87.41 88.41 990 87.63 88.77 988 88.45 89.60 986 87.77 88.50 984 88.00 88.36 982 88.25 88.40 980 88.24 88.50 978 88.40 87.61 976 87.81 89.00 974 86.73 87.94 972 87.57 88.09 970 87.96 87.56 968 86.68 87.52 966 86.92 88.26 964 87.18 87.66 962 87.46 87.78 960 87.91 87.39 958 86.86 87.15 956 86.54 87.11 954 86.81 87.16 952 86.23 87.16 950 86.34 87.50 948 86.79 87.29 946 86.65 86.80 944 86.35 86.26 942 86.47 86.54 940 86.04 87.01 938 86.06 86.72 936 85.98 86.27 934 85.78 86.30 932 85.73 85.97 930 85.58 85.94 928 85.64 86.13 926 85.80 86.04 924 85.02 85.35 922 85.41 85.42 920 85.12 85.42 918 85.08 85.20 916 84.86 85.29 914 84.73 84.95 912 84.48 84.78 910 84.67 84.77 908 84.38 84.90 906 84.53 84.51 904 84.27 84.14 902 83.73 84.22 900 84.08 84.17 898 83.61 83.57 896 83.57 83.62 894 83.40 83.32 892 83.32 83.45 890 83.14 83.28 888 82.89 83.16 886 83.05 82.72 884 82.88 82.84 882 82.39 82.57 880 81.96 82.40 878 82.17 82.18 876 82.07 81.97 874 81.78 82.08 872 81.91 81.87 870 81.69 81.69 868 81.21 81.21 866 81.13 81.38 864 81.02 80.98 862 81.08 80.86 860 80.67 80.95 858 80.60 80.80 856 80.61 80.81 854 80.31 80.37 852 79.96 80.22 850 80.20 80.21 848 80.04 80.07 846 80.08 79.96 844 79.70 79.92 842 79.99 80.08 840 79.71 79.84 838 79.44 79.87 836 79.58 79.93 834 79.55 79.70 832 78.96 79.41 830 79.85 79.34 828 79.43 79.51 826 79.23 79.49 824 79.47 79.45 822 79.78 79.91 820 79.21 79.64 818 79.48 79.29 816 79.81 79.67 814 79.55 79.46 812 79.87 79.76 810 79.07 79.25 808 79.69 79.59 806 79.80 79.79 804 79.53 79.93 802 79.53 79.87 800 79.57 79.69 798 79.42 79.92 796 79.92 79.92 794 79.69 79.75 792 79.80 80.00 790 79.82 80.07 788 79.99 79.87 786 79.96 80.01 784 79.86 80.10 782 80.09 80.23 780 80.13 80.33 778 80.35 80.20 776 80.29 80.63 774 80.31 80.80 772 80.42 80.38 770 80.62 80.80 768 80.48 80.46 766 80.68 80.95 764 80.89 80.96 762 80.81 80.51 760 80.57 80.99 758 80.66 80.90 756 80.68 81.11 754 80.93 81.06 752 80.89 81.11 750 81.15 81.00 748 80.96 81.21 746 81.05 81.20 744 81.12 81.38 742 80.96 81.06 740 81.02 81.42 738 81.15 81.43 736 81.19 81.20 734 81.31 81.56 732 81.33 81.42 730 81.19 81.23 728 81.33 81.76 726 81.60 81.79 724 81.48 81.54 722 81.43 81.51 720 81.57 81.63 718 81.45 81.74 716 81.69 81.93 714 81.71 82.01 712 81.72 81.83 710 81.70 81.79 708 81.75 81.88 706 81.73 81.87 704 81.64 81.95 702 81.87 81.60 700 81.86 81.92 698 81.90 81.79 696 81.82 82.04 694 81.77 82.03 692 81.78 82.08 690 81.95 81.72 688 82.02 81.91 686 82.00 82.11 684 81.93 81.96 682 81.94 82.01 680 82.19 82.02 678 81.96 82.08 676 81.96 82.14 674 82.12 82.19 672 82.03 82.20 670 81.93 82.08 668 82.05 82.09 666 81.90 82.21 664 82.12 82.12 662 82.09 82.15 660 82.09 82.12 658 82.16 82.31 656 82.01 82.36 654 82.23 82.20 652 82.16 82.17 650 82.02 82.42 648 82.02 82.30 646 82.28 82.18 644 81.93 82.06 642 82.07 82.26 640 82.12 82.26 638 82.19 82.20 636 82.19 82.26 634 82.17 82.15 632 82.18 82.05 630 82.09 82.25 628 82.30 82.16 626 82.35 82.31 624 82.12 82.30 622 82.16 82.10 620 82.18 82.14 618 82.10 82.25 616 82.17 82.06 614 81.97 82.24 612 82.08 82.14 610 82.14 82.14 608 82.22 82.25 606 82.06 82.36 604 82.09 82.16 602 82.00 82.24 600 82.03 82.08 598 82.02 82.20 596 82.07 82.01 594 82.09 82.31 592 82.12 82.24 590 82.06 82.10 588 82.05 81.99 586 81.98 82.22 584 81.93 81.92 582 82.19 82.29 580 82.06 81.92 578 81.93 82.03 576 81.90 81.84 574 81.69 81.93 572 81.85 82.18 570 81.98 81.92 568 81.93 82.11 566 81.88 81.96 564 81.81 81.95 562 81.80 81.98 560 81.90 81.98 558 81.81 81.85 556 81.78 81.88 554 81.72 81.77 552 81.79 81.66 550 81.78 81.81 548 81.60 81.83 546 81.56 81.78 544 81.59 81.61 542 81.84 81.91 540 81.59 81.59 538 81.58 81.59 536 81.63 81.62 534 81.70 81.48 532 81.41 81.64 530 81.41 81.64 528 81.31 81.56 526 81.28 81.65 524 81.23 81.50 522 81.43 81.55 520 81.39 81.41 518 81.24 81.41 516 81.34 81.41 514 81.24 81.33 512 81.24 81.03 510 81.28 81.22 508 81.22 81.24 506 81.18 81.38 504 80.89 81.34 502 81.04 81.33 500 80.91 81.34 498 80.91 81.20 496 81.12 81.08 494 80.83 81.09 492 80.77 81.25 490 80.65 81.06 488 80.70 81.02 486 80.70 81.08 484 80.63 80.84 482 80.64 80.94 480 80.49 80.99 478 80.58 80.85 476 80.74 80.78 474 80.76 80.75 472 80.54 80.68 470 80.41 80.56 468 80.61 80.54 466 80.49 80.76 464 80.23 80.80 462 80.61 80.67 460 80.34 80.60 458 80.28 80.72 456 80.09 80.33 454 80.10 80.48 452 80.02 80.50 450 80.39 80.26 448 79.94 80.57 446 80.06 80.29 444 79.94 80.27 442 79.76 80.36 440 79.86 80.32 438 79.98 80.37 436 79.84 80.53 434 79.51 80.14 432 79.72 79.98 430 79.69 80.04 428 79.76 80.37 426 79.83 79.98 424 79.21 80.35 422 79.22 79.77 420 79.16 80.24 418 79.51 80.00 416 78.93 79.95 414 78.88 80.69 412 79.42 79.93 410 79.09 80.17 408 78.45 79.77 406 78.70 79.98 404 78.45 79.61 402 78.90 79.62 400 78.76 79.71 398 78.91 78.84 396 79.48 79.56 394 79.18 79.49 392 79.40 79.11 390 78.55 79.16 388 78.42 79.56 386 77.95 79.39 384 78.42 78.65 382 78.48 79.48 380 78.63 79.58 1650 94.03 93.99 1640 94.04 94.00 1630 94.04 94.00 1620 94.03 94.00 1610 94.03 93.99 1600 94.03 93.99 1590 93.98 93.98 1580 93.98 93.95 1570 93.97 93.95 1560 93.94 93.93 1550 93.93 93.91 1540 93.90 93.90 1530 93.88 93.86 1520 93.84 93.84 1510 93.83 93.82 1500 93.80 93.79 1490 93.77 93.76 1480 93.73 93.75 1470 93.71 93.72 1460 93.67 93.69 1450 93.65 93.66 1440 93.60 93.63 1430 93.57 93.60 1420 93.54 93.55 1410 93.50 93.53 1400 93.45 93.49 1390 93.41 93.45 1380 93.37 93.41 1370 93.33 93.36 1360 93.28 93.33 1350 93.26 93.28 1340 93.20 93.24 1330 93.15 93.20 1320 93.11 93.15 1310 93.05 93.10 1300 93.00 93.05 1290 92.95 92.99 1280 92.89 92.95 1270 92.84 92.88 1260 92.78 92.83 1250 92.71 92.77 1240 92.65 92.71 1230 92.58 92.63 1220 92.51 92.57 1210 92.43 92.50 1200 92.35 92.41 1190 92.27 92.34 1180 92.19 92.25 1170 92.09 92.15 1160 91.99 92.07 1150 91.90 91.97 1140 91.79 91.87 1130 91.68 91.76 1120 91.56 91.65 1110 91.43 91.51 1100 91.29 91.37 1090 91.15 91.24 1080 91.00 91.08 1070 90.83 90.93 1060 90.66 90.75 1050 90.46 90.56 1040 90.25 90.35 1030 90.03 90.13 1020 89.79 89.89 1010 89.51 89.62 1000 89.22 89.34 990 88.90 89.02 980 88.56 88.67 970 88.18 88.29 960 87.73 87.87 950 87.27 87.38