# 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 2020-02-24 (1895 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 93.18 94.25 93.61 998 94.19 93.10 92.94 996 93.89 93.85 93.67 994 94.93 94.53 94.56 992 94.01 95.18 94.41 990 93.39 94.19 93.38 988 94.75 94.10 93.33 986 94.86 94.11 93.26 984 94.30 94.72 94.04 982 94.30 94.56 93.79 980 93.95 94.51 93.79 978 94.51 94.69 94.12 976 93.99 94.68 93.63 974 94.18 94.74 93.19 972 94.04 93.90 94.46 970 93.90 94.37 93.71 968 94.56 94.57 94.04 966 94.72 95.18 93.23 964 94.46 93.79 92.93 962 94.84 94.86 93.70 960 94.15 94.31 93.81 958 94.18 94.21 93.91 956 95.08 94.37 93.63 954 94.24 94.03 93.72 952 94.85 94.30 93.42 950 94.02 94.41 93.90 948 94.05 94.33 93.92 946 93.32 94.44 94.48 944 94.35 94.37 93.37 942 93.98 94.05 93.92 940 94.24 94.54 93.39 938 94.15 94.21 93.54 936 94.25 94.10 93.56 934 93.95 94.84 93.60 932 94.14 94.94 93.27 930 93.45 93.63 93.49 928 94.33 94.11 93.53 926 94.78 94.11 94.04 924 94.12 94.74 93.52 922 94.33 94.21 93.72 920 94.32 94.63 93.67 918 93.72 94.32 93.43 916 94.05 94.15 93.53 914 94.01 93.86 93.45 912 94.06 93.96 93.82 910 93.95 94.06 92.95 908 94.06 93.92 93.34 906 93.75 94.19 93.72 904 94.11 93.79 93.30 902 93.87 94.09 93.74 900 93.84 94.20 93.30 898 94.10 94.00 93.18 896 94.06 93.76 93.63 894 93.79 93.99 93.63 892 93.78 93.72 93.10 890 93.76 93.93 93.42 888 93.89 93.93 93.38 886 94.00 93.85 93.38 884 93.94 93.96 93.37 882 93.37 93.59 93.56 880 93.83 93.95 93.59 878 93.67 93.86 93.19 876 93.82 93.73 93.25 874 93.79 93.47 93.34 872 93.62 93.63 93.01 870 93.57 93.58 92.96 868 93.66 93.80 92.76 866 93.65 93.72 93.01 864 93.57 93.74 92.86 862 93.69 93.35 93.22 860 93.54 93.51 93.09 858 93.60 93.78 92.58 856 93.16 93.85 92.73 854 93.18 93.62 92.76 852 93.34 93.49 93.01 850 93.40 93.32 92.79 848 93.48 93.52 92.88 846 93.34 93.40 92.91 844 93.58 93.55 92.77 842 93.08 93.68 93.09 840 93.29 93.32 92.63 838 92.91 93.28 92.99 836 93.21 93.19 92.40 834 93.32 93.11 92.82 832 93.15 93.03 92.52 830 92.86 92.91 92.76 828 93.09 93.15 92.66 826 92.69 92.73 92.33 824 93.18 93.01 92.18 822 93.00 92.80 92.81 820 93.02 92.79 92.66 818 92.89 92.57 92.43 816 92.94 92.70 92.68 814 93.06 92.83 92.45 812 92.95 92.88 92.39 810 92.65 92.66 92.31 808 92.49 92.61 92.14 806 92.52 92.85 92.13 804 92.87 92.98 91.99 802 92.46 92.54 91.96 800 92.50 92.81 91.93 798 92.28 92.64 92.06 796 92.47 92.25 91.88 794 92.51 92.89 92.56 792 92.14 92.63 91.95 790 91.99 92.50 92.13 788 92.45 92.54 91.92 786 92.33 92.39 92.01 784 92.27 92.58 91.82 782 92.11 92.40 91.78 780 92.20 92.08 91.66 778 92.23 92.50 91.86 776 92.10 92.12 91.63 774 92.19 92.40 91.73 772 92.38 92.06 91.67 770 91.97 91.91 91.76 768 91.95 92.32 91.39 766 91.82 92.12 91.50 764 91.83 91.98 91.47 762 91.65 92.08 91.25 760 91.52 91.98 91.12 758 91.91 91.88 91.19 756 91.48 92.00 91.41 754 91.84 91.61 91.25 752 91.35 91.87 91.46 750 91.54 91.75 91.04 748 91.04 91.59 91.33 746 91.23 91.61 91.04 744 91.49 91.62 91.11 742 91.23 91.48 90.98 740 90.98 91.38 90.90 738 91.28 91.39 90.99 736 91.30 91.43 91.09 734 91.12 91.36 90.80 732 90.95 91.36 90.82 730 91.06 91.21 90.97 728 90.86 91.15 90.81 726 90.86 91.12 90.69 724 90.74 91.02 90.52 722 90.89 90.96 90.47 720 90.62 90.83 90.23 718 90.69 90.86 90.61 716 90.52 91.07 90.27 714 90.50 91.07 90.30 712 90.48 90.94 90.46 710 90.30 90.67 90.02 708 90.43 90.45 90.14 706 90.11 90.54 90.17 704 90.07 90.58 89.87 702 90.06 90.63 89.98 700 90.13 90.37 89.76 698 89.94 90.22 89.90 696 89.86 90.38 89.92 694 89.59 90.30 89.78 692 89.78 90.16 89.71 690 89.78 90.03 89.58 688 89.59 89.93 89.47 686 89.37 90.14 89.48 684 89.60 89.84 89.39 682 89.32 89.83 89.39 680 89.32 89.78 89.26 678 89.42 89.80 89.19 676 89.33 89.62 89.21 674 89.16 89.61 88.96 672 89.19 89.42 89.09 670 89.09 89.32 88.99 668 89.00 89.32 89.00 666 88.84 89.47 88.92 664 88.90 89.24 88.68 662 88.87 89.23 88.76 660 88.67 89.26 88.58 658 88.51 88.86 88.34 656 88.41 88.68 88.38 654 88.25 88.66 88.31 652 88.09 88.60 88.15 650 87.72 88.41 87.97 648 87.72 88.27 87.63 646 87.62 88.28 87.83 644 87.67 88.22 87.55 642 87.60 88.14 87.64 640 87.66 88.11 87.55 638 87.35 88.05 87.28 636 87.23 88.01 87.38 634 87.25 87.91 87.32 632 87.15 87.74 87.34 630 87.25 87.66 87.19 628 87.04 87.50 87.06 626 87.03 87.47 87.14 624 86.71 87.54 86.85 622 86.92 87.39 86.87 620 86.55 87.37 86.59 618 86.69 87.23 86.69 616 86.39 87.20 86.63 614 86.52 87.26 86.51 612 86.45 87.04 86.50 610 86.22 86.99 86.25 608 86.20 87.07 86.32 606 86.17 86.66 86.11 604 85.99 86.66 86.16 602 85.96 86.71 85.89 600 85.88 86.48 85.91 598 85.92 86.65 85.71 596 85.66 86.29 85.66 594 85.57 86.27 85.70 592 85.45 86.23 85.56 590 85.32 86.12 85.41 588 85.25 85.91 85.26 586 85.10 85.75 85.09 584 85.25 85.74 85.08 582 85.02 85.66 84.89 580 84.81 85.49 84.68 578 84.68 85.19 84.53 576 84.49 85.09 84.52 574 84.31 85.00 84.56 572 84.46 84.89 84.20 570 84.21 84.74 84.22 568 83.90 84.80 84.05 566 83.84 84.68 83.76 564 83.71 84.33 83.75 562 83.56 84.25 83.63 560 83.50 84.18 83.41 558 83.47 84.15 83.47 556 83.13 83.96 83.19 554 83.13 83.91 83.07 552 82.82 83.64 82.87 550 82.68 83.39 82.58 548 82.52 83.36 82.55 546 82.44 83.28 82.50 544 82.14 82.98 82.19 542 81.96 82.89 82.15 540 81.97 82.73 81.99 538 81.65 82.56 81.85 536 81.64 82.39 81.50 534 81.50 82.26 81.30 532 81.28 81.96 81.22 530 80.86 81.94 81.00 528 80.72 81.69 80.83 526 80.69 81.61 80.60 524 80.41 81.38 80.59 522 80.41 81.12 80.24 520 80.08 80.93 80.33 518 79.93 80.96 79.93 516 79.85 80.47 79.68 514 79.65 80.40 79.28 512 79.45 80.22 79.25 510 79.10 80.01 79.08 508 79.03 79.76 78.81 506 78.77 79.72 78.77 504 78.65 79.51 78.47 502 78.14 79.05 78.29 500 78.05 78.77 77.77 498 77.93 78.69 77.63 496 77.53 78.38 77.29 494 77.16 78.24 76.96 492 76.95 77.90 76.83 490 76.81 77.63 76.82 488 76.74 77.58 76.50 486 76.25 77.26 75.93 484 76.15 76.87 75.71 482 75.72 76.61 75.39 480 75.42 76.50 75.35 478 75.46 76.14 74.90 476 74.96 75.88 74.66 474 74.67 75.74 74.18 472 74.59 75.58 74.12 470 74.11 75.05 73.73 468 73.67 74.52 73.48 466 73.41 74.34 73.03 464 73.16 74.22 72.68 462 73.15 73.84 72.55 460 72.73 73.51 72.00 458 72.33 73.18 71.72 456 71.95 72.69 71.57 454 71.50 72.76 71.06 452 71.29 72.40 70.78 450 70.78 71.57 70.35 448 70.58 71.48 70.25 446 70.36 71.08 69.35 444 69.84 71.08 69.37 442 69.72 70.61 68.96 440 69.40 69.86 68.77 438 68.46 69.64 68.09 436 68.32 69.38 67.85 434 68.06 69.08 67.29 432 67.24 68.91 66.77 430 67.07 68.06 66.58 428 66.60 67.65 66.16 426 66.38 67.18 65.77 424 65.88 66.44 65.00 422 65.34 65.94 64.58 420 64.52 65.85 63.58 418 64.15 65.46 63.34 416 63.36 64.89 62.83 414 63.37 64.27 62.41 412 62.28 63.66 61.58 410 61.90 63.13 61.46 408 61.90 62.66 60.63 406 60.99 62.34 60.70 404 59.74 61.32 59.94 402 59.82 60.67 58.94 400 59.73 60.51 58.87 398 59.60 59.99 58.04 396 58.00 60.02 57.16 394 58.11 59.75 57.11 392 58.23 58.87 56.74 390 57.76 57.50 55.71 388 56.58 57.76 56.23 386 56.51 57.51 55.12 384 56.05 57.76 55.22 382 55.41 56.34 55.27 380 55.57 56.61 54.86 1650 96.37 96.35 95.88 1640 96.37 96.34 95.88 1630 96.38 96.35 95.86 1620 96.36 96.35 95.87 1610 96.38 96.33 95.87 1600 96.37 96.35 95.86 1590 96.38 96.34 95.85 1580 96.38 96.34 95.84 1570 96.36 96.32 95.85 1560 96.38 96.33 95.83 1550 96.37 96.32 95.84 1540 96.36 96.32 95.81 1530 96.37 96.30 95.83 1520 96.36 96.31 95.81 1510 96.36 96.29 95.80 1500 96.35 96.29 95.79 1490 96.34 96.28 95.80 1480 96.34 96.27 95.77 1470 96.32 96.26 95.77 1460 96.33 96.25 95.75 1450 96.31 96.24 95.74 1440 96.31 96.22 95.72 1430 96.30 96.21 95.72 1420 96.28 96.20 95.70 1410 96.27 96.20 95.68 1400 96.26 96.18 95.67 1390 96.25 96.17 95.65 1380 96.22 96.15 95.63 1370 96.22 96.13 95.62 1360 96.20 96.12 95.60 1350 96.18 96.10 95.59 1340 96.16 96.08 95.56 1330 96.14 96.07 95.54 1320 96.12 96.05 95.52 1310 96.10 96.03 95.50 1300 96.09 96.01 95.49 1290 96.06 95.99 95.47 1280 96.03 95.97 95.44 1270 96.01 95.94 95.42 1260 96.00 95.92 95.40 1250 95.96 95.91 95.36 1240 95.94 95.88 95.34 1230 95.91 95.85 95.31 1220 95.88 95.82 95.28 1210 95.84 95.81 95.26 1200 95.81 95.77 95.24 1190 95.79 95.75 95.20 1180 95.75 95.72 95.17 1170 95.72 95.69 95.13 1160 95.69 95.66 95.11 1150 95.66 95.63 95.07 1140 95.61 95.60 95.04 1130 95.59 95.56 95.01 1120 95.56 95.53 94.96 1110 95.52 95.49 94.93 1100 95.47 95.46 94.90 1090 95.43 95.41 94.85 1080 95.39 95.37 94.80 1070 95.33 95.33 94.77 1060 95.28 95.29 94.72 1050 95.25 95.22 94.68 1040 95.19 95.18 94.61 1030 95.14 95.13 94.57 1020 95.07 95.09 94.51 1010 95.03 95.02 94.46 1000 94.95 94.95 94.38 990 94.90 94.91 94.32 980 94.83 94.83 94.25 970 94.74 94.76 94.18 960 94.66 94.70 94.09 950 94.60 94.60 94.03