# 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 2019-02-07 (1513 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 94.76 95.08 95.86 998 94.89 96.73 94.96 996 95.18 95.52 95.09 994 95.19 95.10 95.26 992 95.08 94.86 95.35 990 95.20 95.53 94.80 988 95.24 95.69 95.47 986 95.13 95.53 95.10 984 95.30 95.73 95.17 982 95.46 95.40 95.51 980 95.18 95.53 95.77 978 95.76 95.75 95.75 976 95.66 95.96 95.12 974 95.39 95.63 95.32 972 94.86 95.48 95.04 970 95.39 95.58 95.25 968 95.20 94.89 95.01 966 95.23 95.40 95.11 964 95.64 95.63 94.79 962 95.18 95.30 95.21 960 95.69 95.55 95.37 958 95.35 95.46 95.22 956 95.12 94.84 95.10 954 94.97 95.87 95.58 952 95.72 94.67 94.95 950 94.98 95.46 95.79 948 95.62 96.27 95.41 946 95.63 95.82 95.37 944 94.68 95.10 95.27 942 94.45 94.77 95.64 940 95.09 95.28 94.88 938 95.28 95.34 94.94 936 95.59 95.20 94.94 934 94.77 95.14 95.15 932 95.07 95.44 94.76 930 95.24 95.67 95.10 928 95.25 95.75 95.34 926 95.30 95.03 94.85 924 94.82 95.01 94.61 922 95.46 95.49 95.15 920 94.92 95.45 95.08 918 95.40 95.28 95.06 916 94.99 94.67 94.57 914 95.14 95.31 94.81 912 95.31 95.16 94.62 910 95.10 95.03 95.06 908 95.22 95.27 95.00 906 95.26 95.22 94.75 904 94.78 94.98 94.81 902 94.99 95.00 95.19 900 94.51 94.95 94.86 898 94.82 94.73 94.47 896 95.08 95.08 94.82 894 94.86 94.98 94.78 892 95.16 95.34 94.86 890 94.71 94.65 95.27 888 94.61 94.72 94.45 886 94.86 94.62 94.93 884 94.74 95.10 94.76 882 94.72 95.17 94.75 880 94.78 95.03 94.78 878 94.37 94.70 94.79 876 94.53 95.27 94.58 874 94.45 94.79 94.97 872 94.78 94.69 94.44 870 94.84 94.91 94.60 868 94.90 94.95 94.47 866 94.60 94.97 94.31 864 94.80 94.61 94.52 862 94.71 94.55 94.16 860 94.26 94.88 94.01 858 94.74 94.58 94.74 856 94.47 94.43 94.13 854 94.69 94.60 94.55 852 94.56 94.41 94.53 850 94.91 94.54 94.50 848 94.72 94.78 94.17 846 94.28 94.65 94.18 844 94.62 94.60 94.15 842 94.87 94.57 94.32 840 94.58 94.44 93.88 838 94.35 94.61 94.38 836 94.46 94.77 94.30 834 94.36 94.94 94.43 832 94.46 94.25 94.05 830 94.61 94.28 94.31 828 94.13 94.30 94.23 826 93.98 94.57 93.81 824 94.19 94.10 94.00 822 94.04 94.35 94.08 820 93.85 94.30 94.21 818 94.01 94.21 93.80 816 94.17 94.36 93.69 814 93.57 93.96 93.68 812 93.95 93.77 93.77 810 93.80 94.07 93.59 808 93.83 93.96 93.66 806 93.89 93.80 93.82 804 94.05 93.70 93.42 802 94.03 93.94 93.61 800 93.96 93.90 93.56 798 93.67 94.05 93.09 796 93.61 94.11 93.49 794 93.77 93.99 93.51 792 93.66 93.77 93.22 790 93.74 93.69 93.38 788 93.71 93.84 93.25 786 93.72 93.73 93.23 784 93.67 93.51 93.21 782 93.72 93.83 93.27 780 93.51 93.61 93.20 778 93.76 93.56 93.09 776 93.65 93.67 93.20 774 93.43 93.68 93.13 772 93.63 93.25 93.01 770 93.46 93.44 93.22 768 93.16 93.45 92.85 766 93.61 93.20 93.12 764 93.35 93.15 93.08 762 93.49 93.66 92.98 760 93.32 93.41 92.96 758 93.14 92.98 92.86 756 93.30 93.13 92.98 754 93.19 92.94 92.44 752 93.31 92.89 92.79 750 93.15 93.20 92.65 748 92.95 93.05 92.57 746 93.29 93.26 92.58 744 93.01 93.16 92.55 742 92.93 93.11 92.45 740 93.20 92.93 92.50 738 92.88 92.84 92.62 736 92.82 92.93 92.50 734 92.76 92.90 92.34 732 92.80 92.70 92.10 730 92.56 92.75 92.04 728 92.72 92.53 92.01 726 92.70 92.90 92.00 724 92.85 92.64 92.28 722 92.56 92.66 92.07 720 92.62 92.28 91.99 718 92.59 92.58 91.81 716 92.65 92.55 91.97 714 92.37 92.30 91.86 712 92.42 92.28 91.86 710 92.24 92.33 91.36 708 92.06 92.39 91.63 706 92.26 92.45 91.66 704 92.03 92.18 91.73 702 92.48 92.07 91.61 700 92.18 92.04 91.36 698 91.99 91.95 91.51 696 91.94 91.99 91.29 694 91.82 91.71 91.41 692 91.96 91.89 91.35 690 91.87 91.74 91.09 688 91.88 91.67 91.11 686 91.63 91.51 91.15 684 91.64 91.56 91.02 682 91.63 91.58 91.02 680 91.67 91.48 91.11 678 91.51 91.30 90.82 676 91.70 91.52 90.81 674 91.19 91.23 90.73 672 91.49 91.06 90.89 670 91.47 91.21 90.67 668 91.39 91.12 90.42 666 91.31 91.05 90.61 664 91.07 91.02 90.33 662 91.11 90.79 90.27 660 91.05 91.04 90.01 658 91.10 90.85 90.33 656 90.92 90.75 90.11 654 90.82 90.60 89.76 652 90.73 90.56 89.61 650 90.57 90.10 89.67 648 90.42 90.07 89.63 646 90.37 90.11 89.35 644 90.28 90.12 89.56 642 90.20 90.00 89.30 640 90.07 90.17 89.18 638 90.18 89.92 89.20 636 90.11 89.83 89.21 634 89.92 89.79 89.04 632 90.16 89.75 88.93 630 89.62 89.80 88.95 628 90.00 89.61 88.81 626 89.70 89.64 88.82 624 89.89 89.69 88.70 622 89.46 89.31 88.91 620 89.64 89.34 88.62 618 89.37 89.19 88.56 616 89.50 89.27 88.47 614 89.25 89.20 88.47 612 89.12 89.02 88.45 610 89.08 89.01 88.12 608 89.19 88.89 88.23 606 89.26 88.96 88.06 604 89.27 88.88 87.96 602 88.89 88.64 87.75 600 88.87 88.40 88.03 598 88.60 88.35 87.85 596 88.80 88.39 87.75 594 88.62 88.40 87.67 592 88.40 88.22 87.28 590 88.23 88.05 87.42 588 88.29 88.08 87.46 586 88.25 88.03 87.46 584 88.30 87.98 87.13 582 88.12 87.88 87.13 580 88.02 87.53 86.83 578 87.90 87.48 86.81 576 87.74 87.36 86.86 574 87.61 87.27 86.42 572 87.49 87.12 86.36 570 87.52 87.34 86.36 568 87.39 87.04 86.36 566 87.20 86.83 86.02 564 87.16 86.89 85.94 562 87.15 86.71 85.94 560 86.96 86.54 85.84 558 86.87 86.63 85.65 556 86.70 86.45 85.42 554 86.71 86.27 85.44 552 86.44 86.31 85.26 550 86.43 86.08 85.33 548 86.40 85.81 85.08 546 85.93 85.47 85.09 544 85.93 85.56 84.66 542 85.83 85.45 84.65 540 85.62 85.29 84.35 538 85.57 84.99 84.18 536 85.36 85.07 84.17 534 85.09 84.71 84.14 532 85.05 85.00 83.70 530 84.79 84.48 83.79 528 84.69 84.55 83.62 526 84.51 84.29 83.29 524 84.38 84.26 83.21 522 84.16 83.80 83.16 520 84.20 83.75 82.90 518 84.01 83.50 82.76 516 83.80 83.61 82.38 514 83.51 83.18 82.35 512 83.50 83.14 82.18 510 83.34 82.70 82.01 508 82.95 82.71 81.77 506 82.98 82.86 81.62 504 82.71 82.40 81.17 502 82.41 82.08 81.19 500 82.42 81.90 80.68 498 82.01 81.76 80.94 496 82.00 81.45 80.66 494 81.42 81.14 80.63 492 81.46 80.95 80.38 490 81.18 80.80 79.99 488 80.94 80.66 79.75 486 80.80 80.41 79.22 484 80.48 80.32 79.27 482 80.28 80.02 79.02 480 79.69 79.61 78.46 478 79.95 79.53 78.60 476 79.58 79.06 78.08 474 79.26 79.01 78.04 472 79.02 78.79 77.30 470 78.54 78.44 77.61 468 78.30 78.23 76.98 466 78.34 77.68 76.90 464 77.78 77.73 76.35 462 77.38 77.31 76.55 460 76.84 77.05 76.11 458 76.69 76.63 75.73 456 76.64 76.77 75.48 454 76.37 76.15 74.85 452 75.87 75.77 74.48 450 75.65 75.40 74.36 448 75.33 75.14 74.04 446 74.96 74.69 73.72 444 74.65 74.72 73.29 442 74.41 74.15 72.69 440 73.76 73.92 72.56 438 73.54 73.41 72.32 436 73.27 73.05 71.56 434 73.03 72.36 71.69 432 72.12 72.21 71.16 430 71.72 72.29 70.97 428 71.74 71.53 70.26 426 71.16 71.19 70.42 424 70.90 70.82 69.54 422 70.18 70.28 68.90 420 69.86 69.51 68.89 418 69.12 69.24 68.22 416 68.66 68.91 67.68 414 68.87 68.43 67.61 412 67.85 67.74 66.99 410 66.88 67.58 66.36 408 66.60 66.92 65.78 406 66.38 66.28 65.17 404 65.45 66.15 65.07 402 65.45 65.34 63.96 400 64.57 65.41 63.58 398 63.94 64.53 63.35 396 63.65 64.16 63.13 394 63.01 63.49 61.57 392 62.66 62.96 61.40 390 62.15 63.07 62.08 388 62.12 61.67 61.18 386 61.73 61.83 60.55 384 59.67 61.60 59.77 382 59.92 61.85 60.07 380 60.05 60.80 59.19 1650 96.83 97.10 96.84 1640 96.82 97.10 96.84 1630 96.82 97.09 96.84 1620 96.81 97.09 96.83 1610 96.81 97.09 96.84 1600 96.81 97.08 96.83 1590 96.80 97.08 96.83 1580 96.79 97.07 96.83 1570 96.79 97.07 96.83 1560 96.77 97.07 96.81 1550 96.76 97.06 96.81 1540 96.76 97.06 96.81 1530 96.75 97.05 96.80 1520 96.74 97.04 96.79 1510 96.74 97.03 96.79 1500 96.72 97.03 96.78 1490 96.71 97.02 96.77 1480 96.70 97.01 96.76 1470 96.69 97.00 96.76 1460 96.67 96.98 96.75 1450 96.66 96.98 96.73 1440 96.64 96.97 96.72 1430 96.64 96.96 96.71 1420 96.62 96.94 96.70 1410 96.62 96.94 96.69 1400 96.61 96.92 96.68 1390 96.60 96.92 96.67 1380 96.58 96.90 96.66 1370 96.55 96.87 96.63 1360 96.54 96.85 96.61 1350 96.52 96.84 96.59 1340 96.51 96.82 96.58 1330 96.50 96.81 96.56 1320 96.48 96.80 96.55 1310 96.47 96.79 96.53 1300 96.45 96.77 96.51 1290 96.43 96.75 96.50 1280 96.42 96.73 96.49 1270 96.40 96.72 96.47 1260 96.39 96.70 96.45 1250 96.38 96.68 96.43 1240 96.36 96.65 96.40 1230 96.34 96.64 96.38 1220 96.32 96.62 96.36 1210 96.30 96.60 96.34 1200 96.28 96.58 96.32 1190 96.25 96.55 96.29 1180 96.23 96.53 96.26 1170 96.21 96.49 96.23 1160 96.19 96.47 96.21 1150 96.16 96.45 96.19 1140 96.14 96.43 96.17 1130 96.12 96.40 96.13 1120 96.10 96.36 96.10 1110 96.06 96.34 96.07 1100 96.02 96.30 96.03 1090 95.99 96.26 95.99 1080 95.96 96.22 95.95 1070 95.92 96.18 95.91 1060 95.87 96.15 95.86 1050 95.84 96.10 95.82 1040 95.80 96.05 95.77 1030 95.76 96.00 95.73 1020 95.71 95.95 95.67 1010 95.66 95.90 95.63 1000 95.61 95.85 95.56 990 95.56 95.80 95.52 980 95.51 95.73 95.45 970 95.45 95.67 95.38 960 95.38 95.60 95.31 950 95.34 95.53 95.24