# 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 2022-01-20 (2591 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 92.76 92.29 92.88 998 91.43 92.20 92.10 996 91.51 92.68 93.10 994 92.36 91.33 92.77 992 91.18 91.96 93.70 990 92.10 92.18 93.94 988 92.37 92.41 91.88 986 93.35 92.08 92.84 984 92.75 92.37 93.67 982 92.26 92.33 92.42 980 92.08 92.07 92.73 978 92.89 92.58 92.56 976 92.73 92.13 92.97 974 92.71 92.57 93.66 972 91.98 92.19 92.90 970 92.37 92.70 91.91 968 91.61 91.56 92.11 966 92.80 92.63 92.49 964 92.47 92.39 92.44 962 92.00 92.31 92.97 960 92.00 92.35 92.84 958 92.19 92.44 93.29 956 92.46 92.57 92.69 954 91.88 92.50 92.50 952 92.34 91.56 92.55 950 92.01 91.96 93.01 948 91.84 92.43 92.14 946 91.89 91.77 92.77 944 92.29 92.09 92.99 942 91.82 91.73 92.59 940 92.49 92.10 92.55 938 91.81 91.86 92.75 936 91.88 92.46 92.95 934 92.35 92.07 92.27 932 92.76 92.52 92.49 930 91.45 92.25 92.63 928 91.98 91.69 92.47 926 92.03 91.79 92.68 924 92.19 92.33 92.84 922 92.11 91.91 92.49 920 91.71 92.16 92.48 918 91.82 92.00 92.90 916 92.41 91.81 92.57 914 91.83 91.75 91.92 912 91.54 91.68 92.42 910 92.02 91.81 92.36 908 92.16 92.27 92.03 906 91.66 92.04 92.25 904 92.11 91.61 92.40 902 91.97 91.59 92.16 900 92.10 92.01 92.05 898 91.71 91.90 92.54 896 91.89 91.48 91.82 894 91.37 91.50 92.21 892 91.60 91.86 92.21 890 91.79 91.63 92.15 888 91.46 91.86 92.08 886 91.39 91.28 91.91 884 91.62 91.50 91.97 882 91.41 91.45 92.02 880 91.67 91.46 92.20 878 91.47 91.51 92.18 876 91.40 91.65 91.88 874 91.35 91.45 91.89 872 91.66 91.51 91.78 870 91.45 91.22 91.74 868 91.38 91.59 91.40 866 91.34 91.58 91.85 864 91.72 90.96 91.68 862 91.14 91.58 91.74 860 91.27 91.02 91.57 858 91.22 91.37 91.55 856 90.96 91.27 91.83 854 91.30 91.17 91.53 852 91.03 91.01 91.59 850 90.66 91.03 91.74 848 91.49 91.27 91.32 846 91.20 91.51 91.33 844 90.77 91.01 91.45 842 91.18 90.50 91.41 840 90.72 90.98 91.26 838 90.84 90.78 91.32 836 91.02 90.48 91.32 834 91.15 90.91 91.21 832 90.85 90.79 90.70 830 90.52 91.04 91.32 828 90.79 90.75 91.05 826 90.78 90.58 91.02 824 90.40 90.57 90.77 822 90.22 90.82 91.32 820 90.42 90.37 90.89 818 90.67 90.03 90.97 816 90.51 90.50 90.89 814 90.40 90.55 90.69 812 90.26 90.54 90.95 810 90.39 90.57 90.85 808 90.26 90.29 90.94 806 90.36 90.15 90.92 804 90.02 89.86 90.77 802 90.18 90.17 90.52 800 90.09 89.94 90.44 798 89.89 90.03 90.55 796 89.85 90.00 90.35 794 89.72 90.14 90.63 792 90.00 90.13 90.32 790 89.81 89.95 90.25 788 89.47 89.91 90.13 786 89.46 89.67 90.39 784 89.40 89.61 90.34 782 89.61 89.41 90.17 780 89.64 89.30 90.31 778 89.44 89.57 89.82 776 89.35 89.56 89.96 774 89.41 89.44 89.96 772 89.74 89.24 89.82 770 89.57 89.35 90.09 768 89.54 89.32 89.90 766 89.10 89.25 89.30 764 88.98 89.27 89.60 762 89.04 89.32 89.76 760 88.96 89.14 89.58 758 89.10 89.32 89.49 756 88.91 88.96 89.50 754 88.71 89.16 89.38 752 88.74 88.95 89.47 750 88.45 88.98 89.17 748 88.65 88.76 89.32 746 88.72 88.50 88.94 744 88.50 88.74 89.05 742 88.24 88.58 89.30 740 88.30 88.36 88.87 738 88.51 88.51 88.80 736 88.17 88.67 89.07 734 88.15 88.47 88.81 732 88.04 88.38 88.55 730 88.13 88.22 88.77 728 87.79 88.33 88.62 726 87.88 88.16 88.66 724 87.82 87.99 88.41 722 87.87 88.01 88.80 720 87.78 87.86 88.16 718 87.83 87.83 88.17 716 87.66 87.85 88.10 714 87.58 87.99 88.31 712 87.57 87.47 88.04 710 87.33 87.47 87.94 708 87.24 87.44 87.73 706 87.15 87.62 87.80 704 87.02 87.64 87.71 702 87.02 87.28 87.75 700 86.88 87.35 87.60 698 86.97 87.27 87.57 696 86.74 87.17 87.36 694 86.49 86.98 87.43 692 86.58 86.81 87.12 690 86.57 87.03 87.16 688 86.24 86.93 87.26 686 86.27 86.81 86.91 684 86.25 86.84 87.25 682 86.32 86.64 86.85 680 86.16 86.27 86.76 678 85.99 86.32 86.72 676 85.96 86.32 86.63 674 85.66 86.20 86.44 672 85.69 86.05 86.42 670 85.58 85.96 86.53 668 85.68 86.08 86.54 666 85.48 85.86 86.26 664 85.36 85.74 86.04 662 85.13 85.67 85.89 660 85.08 85.57 85.92 658 85.00 85.31 85.64 656 84.89 85.11 85.72 654 84.85 85.19 85.55 652 84.76 84.98 85.28 650 84.44 84.81 85.02 648 84.16 84.49 85.10 646 83.99 84.57 84.92 644 84.21 84.40 84.88 642 84.08 84.55 84.67 640 83.95 84.35 84.58 638 84.06 84.41 84.68 636 83.87 84.34 84.69 634 83.53 84.02 84.29 632 83.54 84.14 84.31 630 83.45 84.10 84.30 628 83.47 83.88 84.10 626 83.36 83.75 83.96 624 83.23 83.54 84.09 622 83.17 83.58 83.94 620 83.07 83.56 83.77 618 82.83 83.35 83.72 616 83.02 83.15 83.59 614 82.76 83.10 83.52 612 82.90 82.99 83.42 610 82.36 83.10 83.22 608 82.30 82.71 83.31 606 82.51 82.60 83.20 604 82.33 82.63 83.02 602 81.98 82.64 82.98 600 81.96 82.45 82.73 598 81.89 82.38 82.49 596 81.72 82.33 82.52 594 81.78 82.14 82.30 592 81.40 82.08 82.28 590 81.34 81.90 82.16 588 81.29 81.75 81.90 586 81.13 81.55 81.81 584 81.03 81.44 81.97 582 81.04 81.46 81.65 580 80.71 81.25 81.66 578 80.59 80.95 81.33 576 80.47 80.86 81.38 574 80.13 80.79 81.04 572 80.24 80.76 80.83 570 80.14 80.42 80.60 568 79.84 80.58 80.75 566 79.82 80.28 80.48 564 79.67 80.34 80.43 562 79.58 79.94 80.23 560 79.34 79.82 80.01 558 78.95 79.51 79.84 556 78.95 79.48 79.72 554 78.84 79.36 79.47 552 78.60 79.22 79.50 550 78.39 78.83 79.34 548 78.30 78.84 79.02 546 78.43 78.46 78.92 544 77.98 78.49 78.74 542 77.75 78.32 78.53 540 77.61 78.19 78.14 538 77.42 77.81 78.21 536 77.16 77.83 77.92 534 76.75 77.50 77.98 532 76.86 77.59 77.69 530 76.70 77.42 77.51 528 76.27 77.10 77.19 526 75.93 76.60 76.95 524 76.02 76.55 76.99 522 75.79 76.22 76.47 520 75.81 76.30 76.37 518 75.48 75.80 76.37 516 75.18 75.83 75.72 514 74.93 75.46 75.64 512 74.71 75.26 75.58 510 74.37 75.11 75.21 508 74.29 74.83 75.01 506 74.00 74.53 74.89 504 73.84 74.25 74.65 502 73.44 73.97 74.46 500 73.34 73.98 73.81 498 72.91 73.61 73.85 496 72.56 73.45 73.48 494 72.60 73.15 73.09 492 72.12 72.74 72.97 490 71.74 72.68 72.87 488 71.38 72.27 72.47 486 71.23 72.23 72.21 484 71.01 71.60 71.76 482 70.71 71.42 71.51 480 70.26 71.05 71.44 478 70.04 70.75 70.82 476 69.85 70.45 70.61 474 69.46 70.16 70.50 472 69.30 69.85 70.18 470 68.76 69.59 69.79 468 68.56 69.29 69.72 466 68.59 68.79 69.14 464 68.03 68.87 68.90 462 67.57 68.27 68.60 460 67.07 67.78 68.07 458 67.02 67.65 67.85 456 66.57 67.31 67.77 454 65.98 66.99 67.05 452 65.74 66.63 66.62 450 65.29 66.11 66.45 448 65.00 65.79 65.87 446 64.71 65.52 65.60 444 64.37 64.88 65.10 442 63.65 64.72 64.53 440 63.55 64.26 64.35 438 63.06 63.77 63.94 436 62.85 63.36 63.25 434 61.75 62.70 63.29 432 61.34 62.51 62.70 430 60.97 61.80 61.95 428 60.70 61.69 61.59 426 60.11 61.22 60.80 424 59.56 60.70 60.79 422 59.27 60.00 60.26 420 58.72 59.74 59.32 418 58.31 59.00 58.94 416 57.42 58.37 58.27 414 57.00 57.66 57.79 412 56.63 57.02 57.52 410 56.05 56.80 56.88 408 55.37 56.11 56.42 406 55.06 55.59 55.38 404 54.44 55.41 54.84 402 54.03 54.71 54.57 400 53.40 54.69 53.96 398 53.31 54.06 53.98 396 52.31 53.36 53.42 394 51.90 53.24 52.70 392 51.11 52.84 51.78 390 51.26 51.55 52.07 388 50.73 51.84 50.91 386 50.49 51.13 51.58 384 50.47 51.26 50.94 382 49.96 50.99 50.71 380 49.61 51.39 50.70 1650 94.77 94.88 95.11 1640 94.79 94.89 95.10 1630 94.77 94.89 95.09 1620 94.78 94.87 95.09 1610 94.76 94.86 95.08 1600 94.76 94.85 95.07 1590 94.75 94.86 95.07 1580 94.73 94.84 95.06 1570 94.74 94.83 95.05 1560 94.72 94.82 95.04 1550 94.73 94.82 95.04 1540 94.70 94.80 95.02 1530 94.70 94.79 95.02 1520 94.67 94.77 95.00 1510 94.67 94.76 94.99 1500 94.66 94.75 94.97 1490 94.64 94.74 94.96 1480 94.63 94.72 94.94 1470 94.62 94.70 94.94 1460 94.60 94.69 94.91 1450 94.59 94.68 94.90 1440 94.57 94.66 94.88 1430 94.55 94.65 94.87 1420 94.54 94.63 94.85 1410 94.53 94.62 94.83 1400 94.52 94.60 94.82 1390 94.49 94.57 94.81 1380 94.48 94.57 94.80 1370 94.46 94.55 94.77 1360 94.44 94.53 94.75 1350 94.41 94.50 94.72 1340 94.39 94.47 94.69 1330 94.36 94.44 94.67 1320 94.34 94.42 94.65 1310 94.32 94.40 94.63 1300 94.30 94.38 94.60 1290 94.28 94.34 94.57 1280 94.24 94.32 94.54 1270 94.21 94.28 94.52 1260 94.19 94.26 94.50 1250 94.16 94.24 94.47 1240 94.15 94.20 94.45 1230 94.10 94.17 94.41 1220 94.07 94.13 94.37 1210 94.04 94.10 94.35 1200 94.02 94.07 94.32 1190 93.97 94.03 94.28 1180 93.92 93.98 94.24 1170 93.89 93.94 94.21 1160 93.86 93.90 94.17 1150 93.82 93.85 94.13 1140 93.78 93.81 94.09 1130 93.74 93.77 94.06 1120 93.69 93.72 94.01 1110 93.64 93.66 93.96 1100 93.60 93.60 93.92 1090 93.56 93.56 93.86 1080 93.49 93.50 93.81 1070 93.43 93.44 93.77 1060 93.39 93.36 93.70 1050 93.32 93.32 93.65 1040 93.26 93.25 93.58 1030 93.18 93.17 93.53 1020 93.12 93.09 93.46 1010 93.05 93.02 93.40 1000 92.97 92.95 93.33 990 92.88 92.87 93.24 980 92.81 92.77 93.17 970 92.73 92.71 93.08 960 92.64 92.61 92.98 950 92.54 92.52 92.89