# 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 2024-12-26 (3676 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 88.11 87.89 88.51 998 88.45 89.97 88.16 996 88.06 88.45 88.27 994 88.84 89.23 88.55 992 89.18 88.53 89.73 990 89.28 89.26 89.75 988 89.46 88.51 89.57 986 88.73 89.59 89.25 984 88.21 88.33 88.97 982 88.99 89.22 88.28 980 88.13 88.31 88.71 978 88.33 88.49 90.02 976 88.94 89.23 89.27 974 88.50 89.00 89.21 972 88.38 88.14 88.99 970 88.14 88.85 88.83 968 88.74 88.53 88.93 966 89.20 88.49 88.37 964 88.70 88.61 89.40 962 87.81 87.93 88.59 960 88.27 88.98 89.07 958 88.24 88.99 88.42 956 88.42 88.70 88.52 954 88.71 89.26 88.06 952 88.37 89.21 88.58 950 88.37 88.48 88.28 948 87.60 88.44 88.51 946 88.68 88.54 88.80 944 88.30 89.48 88.45 942 88.49 88.96 88.70 940 88.51 88.25 88.32 938 88.23 88.40 88.44 936 88.21 88.30 88.68 934 87.81 88.21 88.47 932 88.99 88.12 88.37 930 88.75 88.58 88.03 928 88.03 88.12 88.35 926 88.35 88.65 88.36 924 88.25 88.69 88.17 922 88.16 88.47 88.01 920 87.75 88.07 88.60 918 87.63 88.51 88.24 916 88.30 88.18 87.98 914 88.51 88.21 88.06 912 87.64 87.92 88.46 910 88.10 87.93 88.13 908 88.05 88.71 87.86 906 87.88 88.85 88.15 904 87.57 88.39 88.03 902 87.47 88.46 88.05 900 87.57 88.13 88.04 898 87.42 88.49 88.25 896 87.54 88.26 87.51 894 87.39 87.78 87.93 892 87.29 88.17 88.31 890 87.74 87.97 87.85 888 87.48 88.02 87.74 886 87.48 87.82 88.31 884 87.52 88.20 87.68 882 87.41 87.95 88.02 880 87.44 87.61 87.56 878 86.96 87.65 87.61 876 87.25 87.64 87.56 874 87.25 87.58 87.51 872 87.11 87.73 87.39 870 87.32 87.91 87.10 868 87.02 87.25 87.05 866 86.90 87.74 87.35 864 87.46 87.46 87.40 862 86.72 87.71 87.47 860 86.58 87.03 87.00 858 86.51 87.30 87.19 856 86.81 87.35 87.51 854 86.57 87.30 87.09 852 86.83 87.64 86.50 850 86.36 87.19 87.11 848 86.54 87.14 86.81 846 87.06 87.12 86.38 844 86.87 86.72 87.09 842 86.75 87.02 86.76 840 86.29 86.76 86.32 838 86.77 86.71 86.42 836 86.30 87.17 86.72 834 86.32 87.23 86.06 832 86.66 86.81 86.33 830 86.36 86.77 86.31 828 86.12 86.79 86.85 826 86.11 86.63 86.22 824 86.12 86.60 86.18 822 85.37 86.69 85.74 820 86.01 86.67 86.10 818 85.91 86.60 86.19 816 85.83 86.40 85.89 814 85.87 86.49 85.80 812 85.67 86.55 85.46 810 85.29 86.69 85.87 808 85.74 86.08 85.65 806 85.72 86.42 85.70 804 85.34 85.88 85.39 802 85.44 86.00 85.42 800 85.10 85.97 85.78 798 85.35 86.40 85.36 796 85.26 85.90 85.48 794 85.29 85.92 85.42 792 84.92 85.28 85.44 790 85.13 85.58 85.11 788 85.04 85.76 85.30 786 85.05 85.32 84.82 784 84.95 85.48 85.22 782 84.83 85.24 85.07 780 84.49 85.16 85.03 778 84.32 85.35 84.89 776 84.43 85.15 84.75 774 84.38 85.31 84.81 772 84.67 85.12 84.51 770 84.31 85.09 84.56 768 84.33 84.82 84.30 766 84.14 84.87 84.45 764 84.03 84.45 84.53 762 83.88 84.67 84.34 760 84.31 84.32 84.05 758 84.29 84.18 84.04 756 83.69 84.43 83.83 754 83.70 84.41 84.06 752 83.82 84.30 83.82 750 83.60 84.35 83.99 748 83.57 84.15 83.86 746 83.30 83.93 83.41 744 83.26 84.15 83.77 742 83.29 83.92 83.53 740 83.17 84.09 83.37 738 82.90 83.94 83.33 736 83.17 83.68 83.19 734 82.93 83.42 83.07 732 82.85 83.44 83.10 730 82.61 83.51 83.14 728 82.61 83.24 82.82 726 82.70 83.30 82.70 724 82.56 83.31 82.59 722 82.39 83.27 82.47 720 82.14 83.12 82.69 718 82.24 82.93 82.37 716 82.19 82.85 82.47 714 82.01 82.80 82.33 712 82.17 82.80 82.23 710 81.85 82.77 82.02 708 81.67 82.75 82.05 706 81.67 82.61 82.05 704 81.60 82.26 81.72 702 81.40 82.42 81.87 700 81.20 82.32 81.51 698 81.16 82.34 81.37 696 81.11 82.13 81.56 694 81.03 81.91 81.45 692 80.87 81.71 81.26 690 80.83 81.79 81.12 688 80.75 81.61 80.85 686 80.59 81.69 80.87 684 80.38 81.51 80.81 682 80.24 81.16 80.44 680 80.20 81.16 80.84 678 80.00 81.36 80.42 676 80.05 81.12 80.54 674 79.89 81.02 80.33 672 79.77 80.89 80.01 670 79.66 80.65 80.07 668 79.43 80.88 79.91 666 79.57 80.66 79.72 664 79.53 80.45 79.80 662 79.04 80.55 79.58 660 78.88 80.20 79.35 658 79.00 80.11 79.25 656 78.83 80.07 79.11 654 78.43 79.71 78.86 652 78.10 79.63 78.58 650 77.94 79.44 78.54 648 77.84 79.12 78.26 646 77.76 79.20 78.19 644 77.45 79.01 78.10 642 77.50 78.87 77.95 640 77.40 78.64 77.79 638 77.36 78.81 77.80 636 77.31 78.49 77.66 634 76.89 78.44 77.64 632 77.13 78.25 77.59 630 76.85 78.25 77.35 628 76.72 78.02 77.35 626 76.57 78.13 77.11 624 76.38 78.33 76.98 622 76.26 77.75 76.97 620 76.23 77.90 76.66 618 75.95 77.76 76.59 616 75.98 77.41 76.59 614 75.89 77.35 76.40 612 75.75 77.26 76.38 610 75.63 77.31 76.08 608 75.48 77.11 76.09 606 75.28 76.64 75.97 604 75.16 76.87 75.71 602 74.85 76.53 75.47 600 74.88 76.54 75.50 598 74.91 76.27 75.49 596 74.55 76.31 75.30 594 74.66 76.06 74.98 592 74.22 75.86 74.99 590 73.99 75.76 74.76 588 74.29 75.70 74.49 586 73.78 75.66 74.35 584 73.29 75.63 74.19 582 73.39 75.11 73.96 580 73.24 75.11 74.02 578 73.02 74.77 73.72 576 72.77 74.71 73.47 574 72.57 74.67 73.43 572 72.31 74.40 73.39 570 72.40 74.19 73.20 568 72.11 73.93 72.87 566 72.11 74.05 72.56 564 71.71 73.58 72.48 562 71.53 73.49 72.36 560 71.38 73.39 72.11 558 70.99 73.18 71.84 556 70.96 72.83 71.66 554 70.58 72.83 71.76 552 70.64 72.49 71.24 550 70.33 72.28 70.92 548 70.13 72.29 71.00 546 69.78 71.99 70.72 544 69.64 71.80 70.72 542 69.46 71.68 70.39 540 69.16 71.42 70.07 538 69.00 71.25 69.90 536 68.49 70.80 69.51 534 68.43 70.74 69.56 532 68.30 70.69 69.39 530 68.17 70.44 68.96 528 67.78 69.93 68.81 526 67.38 69.74 68.51 524 67.28 69.61 67.98 522 67.05 69.28 68.07 520 66.72 68.98 67.52 518 66.78 68.93 67.20 516 66.22 68.52 67.29 514 65.90 68.24 66.78 512 65.66 68.00 66.45 510 65.18 67.48 66.25 508 65.08 67.36 65.93 506 64.83 67.14 65.73 504 64.70 66.81 65.69 502 64.32 66.71 65.17 500 64.00 66.24 64.87 498 63.50 66.10 64.66 496 63.25 65.67 64.22 494 63.03 65.48 63.75 492 62.40 65.15 63.56 490 62.41 64.84 63.10 488 61.99 64.27 63.01 486 61.71 64.01 62.63 484 61.43 63.77 62.33 482 60.70 63.36 61.67 480 60.52 63.12 61.39 478 60.36 62.87 61.28 476 59.92 62.30 60.63 474 59.33 61.90 60.24 472 59.17 61.57 60.04 470 58.66 61.29 59.68 468 58.26 60.91 58.95 466 58.11 60.67 58.97 464 57.71 60.17 58.42 462 57.08 59.69 57.80 460 56.81 59.05 57.34 458 56.36 58.87 56.96 456 55.94 58.29 56.77 454 55.38 57.92 56.11 452 55.01 57.46 55.88 450 54.58 56.81 55.22 448 53.97 56.46 54.68 446 53.82 56.12 54.24 444 53.25 55.79 53.95 442 52.68 55.29 53.40 440 52.40 54.61 52.88 438 51.96 54.36 52.34 436 51.21 53.72 51.43 434 50.57 53.02 50.93 432 50.02 52.51 50.57 430 49.87 51.87 49.64 428 49.12 51.20 49.44 426 48.79 50.60 48.49 424 47.77 49.83 48.72 422 47.31 49.64 47.33 420 47.12 49.21 47.42 418 47.11 48.28 46.46 416 45.71 47.86 46.15 414 45.56 47.15 45.40 412 44.80 46.63 44.86 410 44.64 46.24 44.28 408 44.41 45.74 44.41 406 43.26 45.40 43.68 404 42.79 44.82 43.19 402 42.77 44.33 42.85 400 42.39 44.11 42.44 398 41.83 43.49 41.99 396 41.72 44.04 41.72 394 41.23 43.03 42.00 392 41.39 43.15 41.34 390 40.96 42.37 41.28 388 40.94 42.21 40.59 386 40.91 42.13 40.05 384 40.12 41.56 40.42 382 40.61 42.07 39.60 380 40.35 41.10 39.51 1650 92.11 92.28 92.28 1640 92.10 92.30 92.28 1630 92.09 92.27 92.27 1620 92.08 92.27 92.26 1610 92.08 92.25 92.25 1600 92.06 92.24 92.23 1590 92.04 92.23 92.22 1580 92.03 92.22 92.20 1570 92.01 92.20 92.19 1560 91.99 92.19 92.18 1550 91.97 92.18 92.15 1540 91.96 92.16 92.13 1530 91.94 92.14 92.13 1520 91.91 92.13 92.10 1510 91.90 92.11 92.08 1500 91.87 92.08 92.06 1490 91.86 92.07 92.06 1480 91.84 92.06 92.02 1470 91.82 92.05 92.00 1460 91.79 92.02 91.97 1450 91.78 92.01 91.95 1440 91.75 91.98 91.93 1430 91.72 91.95 91.90 1420 91.70 91.93 91.87 1410 91.67 91.90 91.85 1400 91.66 91.87 91.82 1390 91.62 91.85 91.80 1380 91.59 91.82 91.77 1370 91.56 91.79 91.73 1360 91.53 91.77 91.70 1350 91.48 91.75 91.67 1340 91.45 91.71 91.64 1330 91.41 91.67 91.60 1320 91.37 91.64 91.57 1310 91.33 91.62 91.53 1300 91.30 91.58 91.49 1290 91.25 91.54 91.45 1280 91.21 91.51 91.41 1270 91.16 91.48 91.37 1260 91.11 91.43 91.32 1250 91.08 91.40 91.28 1240 91.02 91.35 91.24 1230 90.97 91.30 91.18 1220 90.92 91.26 91.15 1210 90.88 91.22 91.10 1200 90.81 91.17 91.03 1190 90.77 91.12 90.99 1180 90.70 91.06 90.93 1170 90.64 91.02 90.87 1160 90.58 90.97 90.81 1150 90.53 90.91 90.76 1140 90.47 90.87 90.70 1130 90.40 90.80 90.64 1120 90.33 90.74 90.57 1110 90.27 90.68 90.50 1100 90.19 90.62 90.43 1090 90.11 90.55 90.35 1080 90.03 90.47 90.28 1070 89.94 90.39 90.19 1060 89.87 90.33 90.11 1050 89.77 90.24 90.02 1040 89.67 90.16 89.94 1030 89.58 90.06 89.84 1020 89.47 89.98 89.73 1010 89.38 89.89 89.64 1000 89.26 89.79 89.52 990 89.14 89.69 89.41 980 89.02 89.56 89.28 970 88.91 89.45 89.16 960 88.76 89.33 89.03 950 88.61 89.21 88.87