# 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 2023-01-11 (2947 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 91.00 90.25 90.13 998 90.99 90.71 90.67 996 92.14 90.49 90.84 994 91.76 90.96 91.45 992 91.13 90.94 91.56 990 91.92 91.36 91.16 988 91.15 92.05 91.18 986 91.80 91.59 91.31 984 90.89 90.77 91.00 982 90.86 91.11 90.61 980 91.92 91.23 91.25 978 92.24 91.46 91.66 976 92.08 90.59 92.14 974 91.61 90.98 91.22 972 91.52 90.69 91.33 970 92.33 91.57 91.13 968 91.34 91.61 91.35 966 92.30 91.66 90.97 964 91.51 91.03 91.96 962 91.37 91.06 91.40 960 91.67 91.49 91.28 958 91.66 91.06 90.88 956 91.68 91.23 91.00 954 91.41 91.35 91.48 952 91.62 90.58 91.00 950 92.13 91.28 91.50 948 91.72 91.57 91.34 946 91.18 91.18 92.04 944 91.32 91.02 91.13 942 90.64 91.72 90.81 940 91.64 90.96 90.92 938 90.92 91.19 90.99 936 91.44 91.32 91.00 934 91.69 90.80 91.01 932 91.30 90.87 90.81 930 91.42 90.72 91.59 928 91.71 91.35 91.20 926 91.48 91.13 91.04 924 91.68 91.52 90.94 922 91.63 91.22 90.69 920 91.25 90.89 90.97 918 91.15 90.63 90.90 916 91.71 90.61 90.40 914 91.56 91.22 91.00 912 90.41 90.86 90.89 910 91.81 90.90 90.62 908 90.93 90.71 90.49 906 90.88 90.76 90.46 904 91.14 90.88 90.74 902 91.47 90.48 90.70 900 90.92 90.80 90.82 898 91.54 90.94 90.50 896 90.91 90.73 90.82 894 91.10 90.73 90.87 892 90.75 90.33 90.38 890 90.63 90.40 90.62 888 90.83 90.60 90.21 886 91.38 90.99 90.22 884 90.82 90.70 90.12 882 90.90 90.52 90.20 880 90.64 90.14 90.56 878 91.02 90.44 90.37 876 90.97 90.59 90.35 874 90.47 90.23 90.26 872 90.63 90.14 90.06 870 90.62 90.41 90.07 868 90.73 89.86 90.41 866 90.62 90.68 90.22 864 90.39 90.35 90.41 862 90.58 90.07 90.39 860 90.38 90.41 90.10 858 90.63 90.16 90.08 856 90.72 90.35 90.14 854 90.22 89.76 89.82 852 90.36 89.37 89.82 850 90.65 90.09 89.97 848 90.11 90.41 89.64 846 90.28 90.01 89.93 844 89.90 89.96 89.45 842 90.37 90.09 89.89 840 90.14 89.49 90.25 838 90.00 89.84 90.31 836 90.02 89.75 89.56 834 90.49 89.78 89.30 832 89.94 89.51 89.66 830 89.89 89.09 89.51 828 90.03 89.15 89.42 826 89.83 89.54 89.30 824 90.24 89.68 89.25 822 89.89 89.46 89.72 820 89.86 88.97 89.37 818 89.45 89.11 89.27 816 89.95 89.41 89.15 814 89.74 89.33 89.23 812 89.68 89.46 88.91 810 89.55 88.59 88.93 808 89.24 89.15 88.67 806 89.80 88.75 89.08 804 89.88 89.38 88.57 802 89.16 89.14 89.23 800 89.03 88.75 89.08 798 89.29 88.83 88.75 796 89.36 88.80 88.95 794 89.08 88.43 89.01 792 89.03 88.73 88.61 790 88.79 88.88 88.78 788 89.22 88.90 88.60 786 89.24 88.69 88.30 784 89.07 88.51 88.37 782 88.81 88.48 88.50 780 88.81 88.51 88.40 778 88.69 88.60 88.02 776 88.76 88.40 88.41 774 88.84 88.06 88.27 772 88.50 88.17 87.97 770 88.46 88.04 88.23 768 88.64 88.17 87.74 766 88.30 88.21 88.08 764 88.21 87.94 87.91 762 88.02 87.64 87.61 760 88.19 87.75 87.70 758 88.44 87.77 87.65 756 88.12 87.67 87.57 754 88.32 87.64 87.34 752 87.90 87.51 87.38 750 87.82 87.55 87.36 748 87.70 87.25 87.52 746 87.89 87.41 87.13 744 87.90 87.22 87.31 742 87.62 87.09 87.26 740 87.41 87.17 87.14 738 87.54 86.87 86.75 736 87.26 86.94 86.88 734 87.43 87.11 86.81 732 87.43 87.09 87.02 730 87.42 86.83 86.82 728 87.31 86.67 86.74 726 86.92 86.72 86.67 724 87.06 86.58 86.37 722 87.01 86.77 86.38 720 86.89 86.55 86.33 718 86.68 86.47 86.39 716 86.77 86.34 86.13 714 86.76 86.26 86.12 712 86.59 86.32 86.10 710 86.27 86.00 86.17 708 86.25 86.06 86.04 706 86.38 86.08 85.84 704 86.21 85.95 85.75 702 86.01 86.07 85.78 700 86.33 85.81 85.43 698 86.05 85.85 85.61 696 86.04 85.59 85.52 694 85.86 85.36 85.40 692 85.82 85.39 85.01 690 85.81 85.11 85.16 688 85.84 85.32 84.99 686 85.87 84.92 84.87 684 85.43 84.96 84.93 682 85.37 84.97 84.81 680 85.29 84.98 84.76 678 85.15 84.64 84.42 676 85.07 84.85 84.40 674 84.98 84.83 84.40 672 84.92 84.48 84.28 670 85.01 84.39 84.23 668 84.73 84.35 84.23 666 84.62 84.28 84.01 664 84.36 84.29 83.91 662 84.29 83.99 83.75 660 84.41 84.10 83.73 658 84.17 83.88 83.62 656 84.28 83.79 83.34 654 84.04 83.73 83.24 652 83.75 83.16 83.03 650 83.50 83.10 82.86 648 83.28 83.00 82.77 646 83.18 82.91 82.72 644 83.20 82.86 82.70 642 83.10 82.76 82.47 640 83.01 82.67 82.40 638 82.87 82.59 82.30 636 82.90 82.49 82.14 634 82.54 82.43 82.21 632 82.61 82.29 81.77 630 82.62 82.13 81.88 628 82.21 82.18 81.97 626 82.46 81.99 81.70 624 82.27 81.76 81.55 622 82.09 81.71 81.63 620 82.05 81.58 81.42 618 81.71 81.58 81.02 616 81.81 81.56 80.96 614 81.70 81.41 81.27 612 81.49 81.18 80.96 610 81.47 81.16 80.93 608 81.27 80.93 80.74 606 81.36 80.82 80.46 604 81.20 80.89 80.55 602 81.06 80.70 80.36 600 80.92 80.57 80.36 598 80.95 80.44 80.21 596 80.78 80.51 80.05 594 80.53 80.26 80.20 592 80.28 79.99 79.63 590 80.32 79.87 79.55 588 80.23 79.61 79.29 586 80.05 79.86 79.31 584 80.20 79.58 79.27 582 79.86 79.58 79.03 580 79.58 79.33 78.93 578 79.28 79.21 78.77 576 79.30 78.85 78.45 574 79.17 78.95 78.50 572 79.07 78.91 78.35 570 78.77 78.58 78.04 568 78.58 78.45 77.96 566 78.43 78.04 77.63 564 78.23 77.98 77.52 562 78.22 77.85 77.41 560 78.11 77.60 77.13 558 77.78 77.60 77.17 556 77.76 77.37 77.05 554 77.52 77.34 76.91 552 77.42 77.10 76.50 550 77.18 76.90 76.27 548 77.02 76.87 76.12 546 76.84 76.75 76.00 544 76.47 76.46 75.92 542 76.35 76.10 75.80 540 76.26 75.89 75.66 538 76.27 75.81 75.15 536 75.83 75.67 74.91 534 75.60 75.18 74.84 532 75.63 75.01 74.77 530 75.33 74.87 74.50 528 75.01 74.82 74.27 526 74.81 74.57 74.04 524 74.59 74.17 73.81 522 74.33 74.19 73.41 520 74.17 73.71 73.19 518 73.93 73.65 73.11 516 73.72 73.31 72.89 514 73.51 73.06 72.69 512 73.24 72.80 72.44 510 72.91 72.67 72.19 508 72.62 72.40 71.77 506 72.33 72.25 71.56 504 72.30 71.82 71.39 502 72.00 71.60 71.03 500 71.68 71.31 70.71 498 71.40 71.05 70.59 496 71.02 70.69 70.12 494 70.78 70.42 70.27 492 70.44 70.20 69.79 490 70.17 70.00 69.35 488 69.93 69.72 69.02 486 69.62 69.40 68.89 484 69.48 68.97 68.55 482 68.97 68.81 68.21 480 68.83 68.32 67.86 478 68.39 68.11 67.64 476 68.26 67.82 67.23 474 67.92 67.54 66.87 472 67.42 67.13 66.66 470 67.05 66.78 66.40 468 66.46 66.43 65.74 466 66.48 66.27 65.60 464 66.13 65.81 65.57 462 65.38 65.18 64.93 460 65.22 65.09 64.30 458 64.56 64.54 63.87 456 64.38 64.15 63.42 454 64.34 64.10 63.30 452 63.72 63.47 62.98 450 63.32 63.04 62.72 448 62.96 62.63 61.84 446 62.22 62.18 61.65 444 62.07 61.83 61.38 442 61.79 61.42 60.78 440 61.13 60.86 60.43 438 60.72 60.34 59.67 436 59.87 60.13 59.08 434 59.42 59.25 58.75 432 59.14 59.19 58.24 430 58.70 58.33 57.90 428 57.79 58.06 57.20 426 57.68 57.00 56.87 424 56.84 56.87 56.48 422 56.34 56.01 55.90 420 55.94 55.47 54.90 418 55.44 55.48 54.98 416 54.62 54.80 53.97 414 54.41 53.74 53.23 412 53.74 53.71 52.68 410 52.81 52.68 52.48 408 51.94 52.32 51.73 406 51.76 51.53 51.47 404 51.54 51.45 50.44 402 50.67 50.87 49.86 400 50.04 50.87 49.81 398 50.07 50.51 49.25 396 49.44 49.34 49.20 394 48.96 48.83 47.73 392 48.78 49.00 47.75 390 48.95 48.50 47.91 388 48.50 48.31 47.80 386 47.88 47.66 46.73 384 47.42 48.19 46.66 382 47.27 46.12 46.37 380 46.65 47.49 46.81 1650 94.23 94.06 93.90 1640 94.23 94.03 93.91 1630 94.22 94.06 93.91 1620 94.23 94.02 93.90 1610 94.22 94.02 93.88 1600 94.20 94.02 93.88 1590 94.21 94.00 93.86 1580 94.19 94.00 93.85 1570 94.20 93.98 93.85 1560 94.17 93.99 93.84 1550 94.17 93.96 93.83 1540 94.16 93.97 93.82 1530 94.15 93.93 93.80 1520 94.15 93.93 93.80 1510 94.13 93.91 93.78 1500 94.12 93.90 93.77 1490 94.11 93.88 93.77 1480 94.09 93.88 93.76 1470 94.08 93.85 93.73 1460 94.07 93.84 93.73 1450 94.05 93.82 93.70 1440 94.03 93.81 93.69 1430 94.02 93.79 93.68 1420 94.00 93.77 93.66 1410 93.98 93.76 93.63 1400 93.95 93.74 93.62 1390 93.93 93.72 93.60 1380 93.91 93.71 93.58 1370 93.89 93.67 93.55 1360 93.87 93.66 93.54 1350 93.87 93.63 93.51 1340 93.84 93.60 93.49 1330 93.82 93.58 93.46 1320 93.79 93.54 93.43 1310 93.76 93.51 93.41 1300 93.74 93.49 93.38 1290 93.72 93.46 93.35 1280 93.69 93.43 93.33 1270 93.66 93.40 93.30 1260 93.64 93.37 93.26 1250 93.60 93.33 93.23 1240 93.57 93.30 93.19 1230 93.53 93.26 93.16 1220 93.50 93.22 93.13 1210 93.47 93.19 93.08 1200 93.44 93.16 93.05 1190 93.40 93.11 93.01 1180 93.35 93.08 92.98 1170 93.32 93.04 92.93 1160 93.27 92.99 92.88 1150 93.23 92.94 92.85 1140 93.19 92.90 92.80 1130 93.14 92.85 92.75 1120 93.10 92.80 92.70 1110 93.04 92.73 92.65 1100 93.00 92.71 92.60 1090 92.94 92.65 92.56 1080 92.89 92.57 92.49 1070 92.82 92.52 92.42 1060 92.76 92.47 92.36 1050 92.69 92.39 92.31 1040 92.62 92.31 92.24 1030 92.57 92.24 92.15 1020 92.49 92.17 92.07 1010 92.41 92.10 92.00 1000 92.32 92.01 91.92 990 92.23 91.92 91.84 980 92.16 91.83 91.75 970 92.06 91.74 91.65 960 91.95 91.63 91.56 950 91.85 91.55 91.46