# Subaru Telescope Optical Tertiary Mirror In-Situ Measured Reflectivity # Coated with Aluminum on 2014-12-03 # Opened the vacuum chamber: No information # Measured with Subaru Portable Spectrophotometer (SPS) on 2019-02-07 (1527 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 89.15 89.42 89.41 998 89.75 88.94 88.99 996 88.11 89.40 88.77 994 88.70 89.35 88.79 992 89.44 89.58 88.77 990 89.70 88.39 89.06 988 89.23 89.29 89.25 986 89.46 88.18 89.20 984 89.54 89.35 88.61 982 88.91 89.15 88.66 980 88.93 88.64 88.46 978 89.12 89.73 88.39 976 88.90 88.85 89.14 974 88.71 88.74 88.37 972 88.92 89.16 89.10 970 89.06 88.83 88.52 968 89.05 88.15 88.56 966 88.82 88.38 88.70 964 88.80 88.71 89.11 962 88.94 87.71 88.31 960 88.82 88.46 88.21 958 88.76 88.89 87.71 956 89.06 87.77 88.36 954 88.09 87.82 88.15 952 88.37 88.04 87.64 950 88.20 88.39 87.32 948 88.47 87.80 87.69 946 87.69 87.76 87.73 944 87.64 88.04 87.56 942 87.17 86.96 86.98 940 87.38 87.68 87.69 938 88.19 87.11 87.33 936 87.21 87.38 87.17 934 87.13 86.96 86.94 932 86.58 86.97 86.96 930 86.95 86.68 86.90 928 87.01 86.41 86.54 926 87.06 86.50 86.58 924 87.11 86.33 86.53 922 86.58 86.71 86.35 920 86.08 86.29 86.11 918 86.08 86.06 86.12 916 86.29 86.04 85.95 914 86.15 86.05 85.99 912 86.14 85.43 86.15 910 86.09 85.68 85.82 908 86.21 85.35 85.75 906 85.37 85.45 85.32 904 85.70 85.40 85.27 902 85.33 85.10 84.91 900 85.43 84.64 84.92 898 85.14 84.34 84.85 896 84.89 84.92 84.94 894 84.53 84.49 84.59 892 84.43 84.57 84.07 890 84.32 84.24 84.17 888 84.40 84.03 83.66 886 83.93 84.13 83.72 884 83.56 83.45 83.74 882 83.70 83.26 83.43 880 83.52 83.55 83.32 878 83.34 83.32 82.89 876 83.50 83.02 83.09 874 83.15 83.12 82.99 872 83.11 82.65 82.75 870 82.99 82.95 82.51 868 83.23 82.39 82.29 866 82.52 82.30 82.51 864 82.38 82.38 82.40 862 82.55 81.88 81.70 860 82.22 81.99 81.53 858 82.39 81.89 81.66 856 82.13 81.71 81.71 854 81.51 81.26 81.34 852 81.54 81.12 81.67 850 81.85 81.21 81.20 848 81.27 80.84 81.22 846 81.17 81.13 81.27 844 81.43 80.83 81.06 842 81.35 80.95 80.94 840 81.02 80.69 80.72 838 81.12 80.78 80.91 836 81.41 80.49 80.67 834 80.68 80.67 80.89 832 81.04 80.82 80.41 830 81.00 81.02 80.76 828 80.88 80.55 80.76 826 80.66 80.45 80.92 824 80.85 80.85 80.55 822 80.84 80.68 80.58 820 80.81 80.41 80.70 818 80.72 80.71 80.85 816 81.07 80.47 80.59 814 80.73 80.71 80.71 812 80.85 80.77 80.75 810 81.24 80.84 80.35 808 81.03 80.53 80.75 806 81.10 80.98 80.62 804 81.10 81.03 80.49 802 81.30 80.69 80.82 800 81.17 80.90 81.04 798 81.50 80.89 81.13 796 81.37 80.86 80.91 794 81.42 81.19 81.12 792 81.54 81.10 81.31 790 81.37 81.23 81.24 788 81.72 81.17 81.26 786 81.90 81.35 81.50 784 81.79 81.29 81.55 782 81.51 81.62 81.23 780 81.48 81.56 81.64 778 82.00 81.60 81.45 776 81.75 81.29 81.46 774 81.85 81.73 81.74 772 81.90 81.54 81.60 770 82.16 81.64 81.84 768 82.19 82.04 81.81 766 82.33 81.97 82.15 764 82.36 81.91 82.12 762 82.43 82.21 81.95 760 82.37 82.27 82.01 758 82.48 81.93 82.04 756 82.48 82.04 82.41 754 82.62 82.28 82.30 752 82.81 82.17 82.58 750 82.56 82.26 82.35 748 82.81 82.38 82.40 746 82.83 82.48 82.48 744 82.88 82.34 82.35 742 82.72 82.25 82.53 740 82.86 82.64 82.70 738 82.75 82.44 82.62 736 82.85 82.83 82.50 734 83.27 82.69 82.92 732 83.19 82.76 82.91 730 83.22 82.55 83.08 728 83.07 82.86 82.75 726 83.44 82.89 82.96 724 83.08 83.04 82.98 722 83.11 82.96 82.90 720 83.48 82.94 82.86 718 83.40 82.95 83.05 716 83.23 83.12 82.99 714 83.30 82.97 83.29 712 83.55 82.91 83.36 710 83.39 83.23 83.00 708 83.41 83.26 83.24 706 83.56 83.19 83.12 704 83.53 83.05 83.36 702 83.49 83.35 83.32 700 83.52 83.19 83.34 698 83.53 83.42 83.32 696 83.57 83.23 83.26 694 83.57 83.31 83.04 692 83.92 83.34 83.35 690 83.62 83.40 83.54 688 83.72 83.32 83.64 686 83.71 83.38 83.23 684 83.64 83.36 83.31 682 83.74 83.30 83.47 680 83.74 83.59 83.37 678 83.77 83.47 83.41 676 83.91 83.57 83.58 674 83.86 83.56 83.76 672 83.59 83.53 83.68 670 83.70 83.39 83.55 668 83.95 83.65 83.65 666 83.71 83.59 83.64 664 83.63 83.58 83.64 662 83.96 83.50 83.47 660 83.74 83.54 83.53 658 83.71 83.38 83.75 656 83.80 83.69 83.62 654 84.03 83.50 83.64 652 83.92 83.63 83.64 650 83.77 83.66 83.43 648 83.97 83.79 83.57 646 83.77 83.68 83.48 644 83.98 83.55 83.41 642 83.87 83.54 83.61 640 83.99 83.49 83.63 638 84.06 83.61 83.41 636 83.90 83.37 83.73 634 83.93 83.57 83.45 632 83.91 83.52 83.61 630 83.72 83.62 83.50 628 83.90 83.63 83.62 626 83.94 83.54 83.62 624 83.99 83.69 83.55 622 83.95 83.74 83.47 620 83.94 83.55 83.61 618 83.88 83.56 83.73 616 83.96 83.55 83.52 614 84.18 83.67 83.68 612 83.69 83.65 83.51 610 83.92 83.59 83.62 608 84.01 83.72 83.51 606 83.83 83.63 83.67 604 83.90 83.68 83.48 602 83.77 83.56 83.66 600 83.85 83.52 83.45 598 83.84 83.51 83.48 596 83.90 83.55 83.59 594 83.79 83.49 83.50 592 83.85 83.60 83.66 590 83.78 83.50 83.39 588 84.13 83.62 83.58 586 83.97 83.52 83.55 584 83.91 83.32 83.35 582 83.61 83.52 83.47 580 83.65 83.55 83.43 578 83.88 83.44 83.52 576 83.74 83.58 83.36 574 83.93 83.28 83.48 572 83.86 83.43 83.17 570 83.75 83.13 83.37 568 83.90 83.46 83.27 566 83.80 83.38 83.22 564 83.72 83.28 83.18 562 83.62 83.28 83.16 560 83.82 83.28 83.22 558 83.74 83.42 83.16 556 83.70 83.33 83.13 554 83.52 83.54 83.25 552 83.69 83.25 83.01 550 83.72 83.33 83.17 548 83.65 83.30 83.30 546 83.42 83.47 82.93 544 83.60 83.18 83.18 542 83.51 83.28 83.23 540 83.39 83.33 83.01 538 83.40 83.24 82.98 536 83.57 83.12 82.97 534 83.35 83.02 82.77 532 83.36 83.13 82.82 530 83.37 83.20 83.03 528 83.22 83.04 82.78 526 83.37 83.04 82.78 524 83.55 82.84 82.71 522 83.11 83.07 82.64 520 83.15 82.81 82.70 518 83.20 82.95 82.42 516 83.27 82.84 82.77 514 83.19 83.01 82.58 512 83.21 82.70 82.62 510 83.18 82.83 82.52 508 83.28 82.77 82.35 506 83.28 82.87 82.63 504 83.09 82.67 82.81 502 83.07 82.66 82.40 500 83.04 82.70 82.55 498 82.91 82.53 82.77 496 83.17 82.50 82.22 494 82.94 82.57 82.36 492 83.02 82.49 82.33 490 82.89 82.45 82.29 488 82.75 82.26 82.20 486 82.91 82.39 82.34 484 82.97 82.62 82.12 482 82.67 82.37 82.28 480 82.74 82.42 82.40 478 82.64 82.18 82.30 476 82.82 82.40 82.20 474 82.76 82.24 81.81 472 82.61 82.24 81.94 470 82.68 82.09 82.04 468 82.90 82.19 81.82 466 82.63 82.15 82.22 464 82.47 82.07 81.89 462 82.52 81.97 81.84 460 82.54 81.99 81.87 458 82.59 81.69 81.80 456 82.40 81.65 82.03 454 82.58 81.89 81.63 452 82.38 81.83 81.56 450 82.34 81.82 81.47 448 82.07 81.97 81.40 446 82.05 81.82 81.40 444 82.22 81.76 81.88 442 82.20 81.63 81.42 440 81.93 81.92 81.28 438 82.43 81.82 81.27 436 82.14 81.37 81.49 434 82.10 81.02 81.73 432 82.11 80.95 81.54 430 82.20 81.19 81.24 428 82.36 81.26 81.16 426 82.02 81.10 81.35 424 82.18 80.93 81.14 422 82.36 80.70 80.52 420 81.56 80.93 81.09 418 82.05 81.29 81.34 416 81.94 81.04 80.88 414 81.92 81.19 81.28 412 82.47 81.15 81.01 410 82.34 80.50 80.57 408 81.60 80.68 81.09 406 81.44 81.67 80.77 404 81.58 80.85 80.66 402 81.27 80.72 81.07 400 81.33 80.24 81.10 398 81.30 80.63 80.40 396 81.87 80.67 80.54 394 81.39 80.24 80.48 392 81.02 80.48 80.31 390 82.68 79.96 80.69 388 81.04 79.86 80.84 386 81.89 80.34 80.50 384 81.81 80.42 80.38 382 82.24 80.35 79.59 380 81.73 80.08 81.29 1650 94.92 94.86 94.80 1640 94.92 94.85 94.80 1630 94.91 94.86 94.81 1620 94.92 94.84 94.81 1610 94.92 94.84 94.80 1600 94.91 94.82 94.80 1590 94.90 94.82 94.79 1580 94.88 94.81 94.78 1570 94.86 94.78 94.75 1560 94.85 94.77 94.73 1550 94.83 94.74 94.71 1540 94.81 94.72 94.70 1530 94.79 94.69 94.68 1520 94.77 94.67 94.66 1510 94.74 94.65 94.63 1500 94.72 94.63 94.62 1490 94.68 94.58 94.58 1480 94.66 94.56 94.56 1470 94.63 94.53 94.52 1460 94.59 94.50 94.49 1450 94.56 94.46 94.46 1440 94.53 94.43 94.43 1430 94.50 94.39 94.39 1420 94.47 94.36 94.36 1410 94.43 94.32 94.33 1400 94.40 94.28 94.29 1390 94.36 94.25 94.26 1380 94.31 94.19 94.22 1370 94.25 94.13 94.15 1360 94.20 94.07 94.10 1350 94.16 94.03 94.06 1340 94.12 94.00 94.02 1330 94.07 93.95 93.97 1320 94.02 93.90 93.93 1310 93.97 93.85 93.88 1300 93.93 93.81 93.82 1290 93.87 93.75 93.78 1280 93.83 93.70 93.73 1270 93.77 93.64 93.67 1260 93.71 93.58 93.62 1250 93.65 93.52 93.56 1240 93.59 93.46 93.50 1230 93.52 93.40 93.43 1220 93.46 93.33 93.37 1210 93.38 93.25 93.29 1200 93.31 93.17 93.22 1190 93.23 93.09 93.14 1180 93.14 93.00 93.05 1170 93.05 92.92 92.96 1160 92.97 92.83 92.88 1150 92.88 92.75 92.79 1140 92.79 92.64 92.69 1130 92.67 92.53 92.58 1120 92.56 92.41 92.47 1110 92.44 92.28 92.34 1100 92.32 92.16 92.22 1090 92.17 92.01 92.08 1080 92.00 91.86 91.91 1070 91.86 91.69 91.75 1060 91.68 91.51 91.58 1050 91.50 91.32 91.39 1040 91.29 91.13 91.18 1030 91.07 90.89 90.97 1020 90.84 90.65 90.72 1010 90.58 90.39 90.46 1000 90.29 90.10 90.17 990 89.99 89.79 89.86 980 89.64 89.43 89.50 970 89.27 89.06 89.11 960 88.85 88.64 88.71 950 88.38 88.16 88.24