# Subaru Telescope Infrared Tertiary Mirror In-Situ Measured Reflectivity # Coated with Silver on 2014-12-17 # Opened the vacuum chamber: No information # Measured with Subaru Portable Spectrophotometer (SPS) on 2020-08-10 (2063 days after) # Measured three times # Data between 950 nm and 1650 nm are also available (SPS-XWW). # Contact: Hirofumi Okita (okita14@naoj.org) # # Wavelength (nm) #1 #2 #3 1000 93.57 93.43 93.94 998 93.62 93.06 94.09 996 94.16 92.96 92.84 994 93.29 92.82 93.86 992 93.95 93.89 94.21 990 93.31 93.34 93.62 988 93.58 94.50 94.25 986 94.87 93.70 93.82 984 93.53 93.90 93.99 982 93.16 94.16 93.59 980 94.00 93.37 94.14 978 93.77 94.48 93.03 976 94.11 93.92 93.79 974 94.28 93.50 93.39 972 93.42 94.07 94.36 970 94.12 94.41 94.16 968 93.20 94.11 93.65 966 93.74 93.88 94.01 964 93.81 93.26 94.00 962 93.33 93.80 93.57 960 94.28 93.94 93.96 958 93.82 93.50 94.25 956 93.83 93.73 93.71 954 94.17 93.71 93.22 952 93.46 93.73 93.55 950 93.41 93.99 93.08 948 94.00 93.29 93.59 946 93.19 93.61 93.86 944 93.52 93.92 94.02 942 93.87 94.30 93.45 940 93.06 93.90 93.40 938 93.68 92.87 93.72 936 93.28 93.73 93.38 934 93.51 94.28 93.49 932 94.35 93.63 93.38 930 93.58 94.09 93.26 928 93.61 93.68 93.36 926 93.53 93.27 93.42 924 93.60 93.22 93.75 922 94.09 93.66 93.33 920 93.65 93.56 93.33 918 93.31 93.52 93.84 916 93.48 93.35 93.70 914 93.67 93.35 93.54 912 93.41 93.81 93.68 910 93.23 93.03 93.69 908 93.30 93.32 93.35 906 93.26 93.27 93.61 904 93.50 92.98 92.92 902 93.00 93.31 92.86 900 93.06 92.80 93.00 898 93.31 92.92 93.42 896 93.05 93.35 93.06 894 93.20 92.90 92.88 892 92.98 93.26 93.14 890 93.14 93.09 93.08 888 93.06 92.89 92.83 886 92.94 93.68 93.10 884 93.10 93.22 93.07 882 93.34 93.10 92.86 880 93.25 92.74 92.71 878 93.01 93.05 92.71 876 92.80 93.28 92.62 874 93.03 93.06 92.97 872 92.75 93.01 92.87 870 92.80 92.85 92.67 868 92.63 92.82 92.48 866 92.70 92.69 92.60 864 92.52 92.51 92.97 862 92.97 92.35 92.98 860 92.75 92.50 92.77 858 92.91 92.93 92.76 856 92.68 92.34 92.86 854 92.63 92.54 92.54 852 92.61 92.41 92.67 850 92.57 92.65 92.90 848 92.51 92.60 92.45 846 92.52 92.34 92.19 844 92.48 92.30 92.95 842 92.28 92.15 92.42 840 92.43 92.25 92.20 838 92.46 92.32 91.95 836 92.37 92.23 92.50 834 92.37 92.57 92.73 832 92.28 92.63 92.21 830 91.83 92.26 92.48 828 92.07 92.27 92.14 826 92.53 92.09 92.45 824 91.71 91.89 91.94 822 92.07 91.65 92.15 820 92.36 91.75 92.46 818 92.36 91.80 91.87 816 92.14 91.80 92.07 814 91.59 91.81 91.83 812 91.76 91.69 91.62 810 91.97 91.59 92.00 808 91.71 91.58 91.90 806 91.97 91.80 91.96 804 91.56 91.71 91.82 802 91.76 91.49 91.75 800 91.83 91.20 91.69 798 91.74 91.33 91.79 796 91.45 91.51 91.58 794 91.75 91.26 91.74 792 91.40 91.40 91.81 790 91.61 91.60 91.67 788 91.25 91.29 91.44 786 91.52 91.16 91.49 784 91.50 90.86 91.67 782 91.23 91.36 91.23 780 91.10 91.18 90.99 778 91.37 91.08 91.45 776 91.17 90.94 91.30 774 91.31 90.75 91.31 772 91.02 90.97 91.22 770 91.11 90.95 91.14 768 91.22 91.00 91.18 766 90.96 90.99 91.15 764 90.93 90.66 90.88 762 90.83 90.83 90.85 760 90.93 90.67 90.97 758 90.74 90.62 90.82 756 90.70 90.45 90.42 754 90.52 90.91 90.86 752 90.72 90.58 90.68 750 90.55 90.22 90.55 748 90.58 90.31 90.53 746 90.74 90.59 90.64 744 90.39 90.40 90.46 742 90.36 89.97 90.55 740 90.43 90.26 90.30 738 90.35 90.11 90.23 736 89.95 89.94 90.17 734 90.07 90.02 90.01 732 90.03 89.72 89.92 730 90.04 89.73 90.08 728 90.00 89.75 89.94 726 89.95 89.53 89.89 724 89.76 89.77 90.02 722 89.65 89.72 90.12 720 89.75 89.38 89.73 718 89.78 89.21 89.85 716 89.46 89.36 89.55 714 89.71 89.21 89.53 712 89.60 89.15 89.43 710 89.29 89.38 89.39 708 89.52 89.01 89.47 706 89.44 89.28 89.48 704 89.30 89.05 89.51 702 89.02 88.98 89.41 700 89.39 89.11 89.10 698 89.22 89.12 89.03 696 89.05 88.83 89.10 694 88.94 88.72 88.85 692 88.83 88.52 89.02 690 88.92 88.64 88.68 688 88.76 88.46 88.81 686 88.75 88.27 88.89 684 88.47 88.31 88.76 682 88.41 88.09 88.54 680 88.43 88.30 88.48 678 88.37 88.00 88.64 676 88.25 88.03 88.35 674 88.05 88.01 88.38 672 88.01 87.87 88.12 670 87.96 87.48 88.30 668 87.95 87.71 88.06 666 87.97 87.67 87.79 664 87.71 87.60 87.69 662 87.70 87.33 87.91 660 87.67 87.22 87.77 658 87.62 87.49 87.55 656 87.60 87.01 87.32 654 87.39 86.90 87.33 652 86.95 86.80 87.17 650 86.93 86.60 87.01 648 86.69 86.29 86.93 646 86.69 86.29 87.01 644 86.76 86.27 86.82 642 86.37 86.29 86.57 640 86.55 86.05 86.44 638 86.33 85.99 86.43 636 86.45 86.04 86.33 634 86.35 85.94 86.16 632 86.19 85.82 86.21 630 85.88 85.62 85.99 628 86.07 85.54 86.03 626 85.95 85.44 86.09 624 85.82 85.39 85.76 622 85.67 85.45 85.68 620 85.66 85.47 85.57 618 85.68 84.98 85.59 616 85.66 85.07 85.52 614 85.39 85.06 85.55 612 85.45 84.86 85.29 610 85.30 84.82 85.10 608 85.15 84.86 85.25 606 85.02 84.66 85.01 604 84.82 84.35 84.95 602 84.70 84.39 84.93 600 84.72 84.36 84.71 598 84.63 84.08 84.83 596 84.51 84.11 84.58 594 84.25 84.00 84.56 592 84.13 83.85 84.45 590 84.00 83.82 84.33 588 83.96 83.71 84.13 586 83.97 83.49 83.93 584 83.97 83.28 83.85 582 83.78 83.25 83.80 580 83.62 83.22 83.67 578 83.49 82.89 83.68 576 83.34 82.97 83.37 574 83.13 82.77 83.33 572 83.30 82.48 83.03 570 83.01 82.53 83.04 568 82.67 82.29 82.79 566 82.44 82.31 82.64 564 82.40 82.14 82.50 562 82.18 81.94 82.16 560 82.04 81.80 82.26 558 81.98 81.56 81.99 556 81.79 81.54 82.09 554 81.77 81.38 81.74 552 81.65 80.97 81.47 550 81.28 80.95 81.58 548 81.22 80.93 81.31 546 81.07 80.60 81.13 544 80.79 80.41 81.17 542 80.79 80.28 80.94 540 80.76 80.23 80.73 538 80.37 80.08 80.61 536 80.31 79.88 80.16 534 80.06 79.63 80.38 532 79.64 79.42 79.85 530 79.72 79.28 79.93 528 79.46 78.98 79.70 526 79.31 78.92 79.36 524 79.03 78.78 79.38 522 79.03 78.36 79.17 520 78.91 78.23 78.77 518 78.65 78.13 78.47 516 78.63 77.95 78.25 514 78.38 77.81 78.20 512 77.85 77.55 78.08 510 77.71 77.41 77.76 508 77.55 76.94 77.29 506 77.43 76.79 77.14 504 77.04 76.80 77.17 502 77.11 76.39 76.87 500 76.66 76.15 76.62 498 76.62 75.84 76.49 496 76.38 75.63 76.32 494 76.01 75.42 75.91 492 75.68 75.34 75.54 490 75.39 74.78 75.35 488 75.15 74.82 74.91 486 74.90 74.37 75.05 484 74.77 74.47 74.77 482 74.31 73.88 74.16 480 74.23 73.56 74.19 478 74.02 73.52 73.88 476 73.90 73.02 73.61 474 73.36 72.85 73.09 472 73.29 72.58 72.94 470 73.00 72.38 72.81 468 72.15 72.08 72.63 466 72.24 71.67 72.17 464 71.67 71.47 71.86 462 71.61 71.19 71.57 460 71.18 70.68 70.97 458 70.91 70.29 70.78 456 70.73 70.22 70.50 454 70.22 69.72 70.24 452 69.76 69.32 69.85 450 69.69 68.90 69.35 448 69.33 68.61 69.08 446 69.11 68.47 68.52 444 68.56 68.13 68.27 442 68.08 67.80 68.33 440 67.79 67.20 67.55 438 67.57 66.97 67.24 436 66.77 66.52 66.91 434 66.35 66.16 66.78 432 66.07 65.58 66.17 430 65.68 65.24 65.65 428 65.32 64.80 65.32 426 64.77 64.24 64.57 424 64.40 64.32 64.38 422 63.77 63.39 63.60 420 63.76 63.09 63.05 418 62.92 62.25 62.64 416 62.36 61.50 62.02 414 61.88 61.37 61.35 412 62.12 61.19 61.24 410 61.31 60.59 60.27 408 60.14 59.68 60.34 406 60.10 59.22 59.46 404 59.33 58.59 59.40 402 58.78 57.89 59.01 400 57.89 57.83 58.03 398 58.15 57.22 57.47 396 57.80 56.59 56.80 394 56.62 56.81 56.76 392 56.19 56.04 55.86 390 56.20 56.14 55.43 388 55.93 55.64 54.90 386 55.07 54.53 54.76 384 55.30 54.97 55.13 382 55.21 55.45 54.40 380 54.70 54.06 54.13 1650 96.05 96.00 95.92 1640 96.03 96.00 95.90 1630 96.03 96.00 95.89 1620 96.03 95.99 95.89 1610 96.03 96.00 95.89 1600 96.02 95.99 95.89 1590 96.00 95.97 95.88 1580 96.00 95.97 95.88 1570 95.98 95.97 95.88 1560 95.97 95.95 95.87 1550 95.96 95.95 95.86 1540 95.95 95.94 95.85 1530 95.94 95.94 95.85 1520 95.93 95.93 95.84 1510 95.92 95.92 95.83 1500 95.91 95.92 95.83 1490 95.89 95.91 95.82 1480 95.89 95.89 95.80 1470 95.87 95.89 95.80 1460 95.86 95.87 95.79 1450 95.85 95.86 95.77 1440 95.83 95.85 95.77 1430 95.82 95.83 95.75 1420 95.81 95.82 95.73 1410 95.79 95.80 95.71 1400 95.78 95.78 95.69 1390 95.75 95.76 95.69 1380 95.75 95.76 95.66 1370 95.72 95.73 95.64 1360 95.71 95.72 95.63 1350 95.71 95.69 95.64 1340 95.68 95.68 95.62 1330 95.66 95.66 95.60 1320 95.64 95.64 95.58 1310 95.63 95.62 95.56 1300 95.62 95.60 95.54 1290 95.60 95.58 95.52 1280 95.58 95.56 95.51 1270 95.56 95.53 95.48 1260 95.53 95.51 95.46 1250 95.51 95.48 95.45 1240 95.50 95.45 95.41 1230 95.47 95.42 95.38 1220 95.44 95.40 95.36 1210 95.42 95.36 95.33 1200 95.38 95.34 95.29 1190 95.35 95.30 95.26 1180 95.31 95.26 95.22 1170 95.28 95.23 95.19 1160 95.24 95.19 95.15 1150 95.21 95.15 95.12 1140 95.17 95.11 95.08 1130 95.13 95.07 95.04 1120 95.09 95.03 95.01 1110 95.03 94.97 94.96 1100 94.99 94.95 94.92 1090 94.95 94.89 94.88 1080 94.90 94.82 94.84 1070 94.84 94.78 94.77 1060 94.79 94.72 94.73 1050 94.73 94.67 94.67 1040 94.66 94.60 94.61 1030 94.60 94.54 94.56 1020 94.53 94.46 94.49 1010 94.46 94.39 94.44 1000 94.40 94.33 94.36 990 94.32 94.24 94.30 980 94.22 94.15 94.21 970 94.14 94.06 94.13 960 94.06 93.99 94.06 950 93.97 93.88 93.96