# Subaru Telescope Primary Mirror In-Situ Measured Reflectivity # Coated with Aluminum on 2013-08-15 # Measured with Subaru Portable Spectrophotometer (SPS) on 2017-10-10 (Before 8th Recoating) # Measured three times each at around the position 1 and 2 # Contact: Hirofumi Okita (okita14@naoj.org) # # Wavelength (nm) Pos.1 #1 Pos.1 #2 Pos.1 #3 Pos.2 #1 Pos.2 #2 Pos.2 #3 1000 85.21 86.33 85.47 82.15 82.20 84.06 998 85.19 86.60 85.30 83.17 82.61 84.20 996 85.08 86.04 86.22 83.97 82.23 83.23 994 85.52 86.53 85.81 83.39 81.72 84.06 992 84.98 86.79 85.21 83.19 82.08 83.12 990 85.83 85.74 85.27 82.48 81.63 83.46 988 85.08 86.37 85.63 82.57 81.43 83.68 986 84.89 86.43 85.94 82.65 81.92 83.80 984 85.30 86.25 84.81 82.22 82.07 83.96 982 85.66 85.56 85.14 82.63 82.08 83.41 980 85.03 85.23 86.25 82.33 81.44 83.11 978 85.12 85.95 84.95 82.38 81.61 83.27 976 85.36 85.33 85.44 81.61 81.75 83.03 974 85.47 85.35 85.99 82.21 82.00 83.02 972 85.30 86.05 85.21 82.20 81.64 83.47 970 85.27 85.84 84.71 81.79 81.39 83.56 968 85.18 85.49 84.54 81.98 81.59 83.84 966 84.76 84.92 84.30 82.06 81.55 83.24 964 84.31 85.13 84.14 81.70 80.83 83.09 962 84.96 84.61 85.50 81.33 80.35 82.74 960 85.05 85.23 85.32 81.30 81.33 83.11 958 84.65 84.61 84.77 81.38 81.00 82.53 956 84.69 85.13 84.43 81.49 80.76 82.36 954 84.17 84.67 84.43 81.41 80.47 82.87 952 83.91 85.26 84.54 81.91 80.93 83.39 950 83.91 84.37 83.94 81.31 80.48 82.22 948 84.28 84.66 84.33 81.37 80.74 81.89 946 83.46 84.05 83.92 81.65 80.99 82.05 944 83.82 84.17 83.97 80.89 80.17 81.84 942 83.38 84.23 83.71 80.74 80.09 81.78 940 83.43 84.32 83.87 81.17 79.83 81.83 938 83.50 84.36 83.54 80.89 80.14 81.75 936 83.44 83.71 83.69 80.83 79.87 81.67 934 82.96 83.74 83.40 80.62 80.01 81.75 932 83.21 83.63 83.51 80.41 79.75 81.83 930 83.13 83.40 83.35 80.23 79.74 81.72 928 83.21 83.33 83.23 80.14 79.28 81.08 926 82.98 83.15 82.90 79.96 79.33 80.90 924 82.48 83.07 82.90 80.03 78.82 81.04 922 83.00 83.40 83.16 80.07 79.08 81.08 920 82.33 82.62 82.67 79.88 79.11 80.70 918 82.42 82.75 82.85 79.67 78.58 80.90 916 82.22 82.64 82.26 79.55 78.92 80.42 914 82.41 82.79 82.37 79.38 78.74 80.43 912 81.77 82.46 82.00 78.93 78.84 80.27 910 82.11 82.15 81.72 79.03 77.96 79.90 908 81.69 81.86 81.71 78.64 77.97 79.76 906 81.59 82.11 81.64 78.59 77.65 79.34 904 81.25 81.58 81.69 78.29 78.05 79.71 902 81.31 81.27 81.54 78.60 77.69 79.38 900 81.26 81.38 81.43 78.48 77.48 79.02 898 80.99 81.41 81.19 78.07 77.59 79.33 896 80.89 80.95 80.97 77.64 77.30 78.92 894 80.82 81.18 80.73 77.55 77.06 78.64 892 80.64 81.21 80.64 77.31 76.76 78.71 890 80.07 80.85 80.54 77.61 77.02 78.43 888 80.07 80.51 80.41 77.42 76.54 78.19 886 80.06 80.60 80.15 76.86 76.61 78.08 884 79.69 80.21 79.85 76.81 76.28 77.86 882 79.55 79.97 79.87 76.55 76.21 77.54 880 79.59 79.90 79.65 76.76 76.06 77.43 878 79.38 79.75 79.48 76.43 75.98 77.47 876 79.16 79.86 79.63 76.40 75.82 77.36 874 79.02 79.34 79.29 76.16 75.43 77.19 872 78.65 79.32 79.15 75.78 75.34 77.28 870 79.04 79.25 78.86 75.75 74.84 77.02 868 78.54 78.58 79.04 75.64 74.80 76.59 866 78.06 78.96 78.78 75.78 74.83 76.58 864 77.96 78.84 78.40 75.46 74.63 76.47 862 78.12 78.28 78.42 75.29 74.48 75.95 860 78.01 78.29 78.23 75.11 74.54 76.23 858 77.82 78.28 77.96 75.23 74.33 76.11 856 77.76 78.31 78.08 74.75 74.24 75.95 854 77.69 78.14 77.67 74.90 73.98 75.69 852 77.20 77.85 77.75 74.56 73.84 75.86 850 77.33 78.02 77.54 74.65 73.78 75.47 848 77.24 77.55 77.78 74.49 73.88 75.42 846 77.46 77.77 77.43 74.48 73.64 75.20 844 77.27 77.63 77.74 74.18 73.72 75.40 842 77.31 77.38 77.37 74.13 73.49 75.37 840 77.12 77.67 77.37 74.03 73.37 75.43 838 76.79 77.28 76.98 74.05 73.36 74.87 836 76.97 77.70 77.14 73.84 73.21 75.08 834 77.17 77.32 76.97 74.50 73.36 74.88 832 76.79 77.42 77.18 74.19 73.31 74.95 830 76.58 76.86 77.32 73.70 73.09 74.75 828 77.20 77.44 77.10 73.75 73.10 74.85 826 77.12 77.45 76.92 73.97 73.22 75.06 824 77.07 77.29 77.08 73.99 73.21 75.04 822 76.82 77.21 77.09 73.97 73.11 75.13 820 77.15 77.68 77.04 73.98 73.21 75.08 818 76.52 77.52 77.49 73.92 73.19 75.02 816 76.75 77.16 77.20 73.98 73.10 75.02 814 77.00 77.28 77.25 73.86 73.14 74.87 812 77.12 77.04 77.13 73.82 73.33 74.81 810 77.02 77.66 76.94 73.93 73.21 75.18 808 77.40 77.76 77.24 74.11 73.48 75.36 806 77.05 77.55 77.42 74.24 73.46 75.05 804 77.04 77.46 77.51 74.37 73.51 75.14 802 77.28 77.54 77.39 74.18 73.30 75.41 800 76.93 77.75 77.69 74.45 73.40 75.39 798 77.26 77.47 77.52 74.45 73.49 75.33 796 77.36 77.71 77.38 74.43 73.59 75.63 794 77.42 77.53 77.52 74.32 73.64 75.73 792 77.15 77.80 77.77 74.57 73.71 75.61 790 77.43 78.18 77.64 74.62 73.83 75.77 788 77.70 77.96 77.71 74.85 73.84 75.64 786 77.59 77.84 77.78 74.67 73.91 75.56 784 77.65 78.08 77.86 74.73 74.12 75.73 782 77.72 78.16 78.06 74.69 73.99 75.92 780 78.04 78.39 78.06 74.88 73.98 75.90 778 78.13 78.26 78.21 74.76 74.23 75.95 776 77.97 78.29 78.16 74.99 74.16 75.87 774 77.97 78.65 78.13 75.04 74.26 76.00 772 78.24 78.43 78.48 75.04 74.38 76.11 770 78.20 78.63 78.54 75.12 74.37 76.25 768 78.28 78.54 78.42 75.28 74.44 76.25 766 78.25 78.69 78.30 75.35 74.47 76.19 764 78.29 78.60 78.49 75.46 74.65 76.42 762 78.29 78.82 78.63 75.37 74.71 76.17 760 78.29 78.91 78.59 75.49 74.64 76.29 758 78.51 78.76 78.46 75.54 74.71 76.48 756 78.27 78.97 78.84 75.71 74.93 76.52 754 78.50 78.81 78.95 75.61 74.82 76.59 752 78.45 78.70 78.76 75.71 74.73 76.60 750 78.54 79.06 78.94 75.66 74.92 76.78 748 78.61 79.01 79.14 75.77 74.83 76.86 746 78.64 79.16 78.80 75.81 74.74 76.76 744 78.73 79.23 78.88 75.86 75.12 76.82 742 78.67 79.16 79.09 75.75 74.98 76.82 740 78.78 79.15 79.02 75.90 75.27 77.01 738 79.07 79.50 79.25 75.84 74.94 77.08 736 78.98 79.17 79.15 76.00 75.11 77.05 734 78.87 79.36 79.17 75.93 75.10 77.04 732 78.81 79.53 79.09 75.95 75.20 77.10 730 79.03 79.49 79.23 76.10 75.23 77.33 728 78.91 79.33 79.09 76.26 75.14 77.21 726 79.10 79.58 79.27 76.32 75.08 77.26 724 79.16 79.49 79.33 76.26 75.36 77.13 722 79.13 79.67 79.23 76.14 75.38 77.18 720 79.24 79.49 79.41 76.33 75.41 77.00 718 79.23 79.41 79.27 76.20 75.39 77.38 716 79.33 79.42 79.23 76.35 75.37 77.16 714 79.21 79.64 79.38 76.43 75.46 77.50 712 79.21 79.79 79.40 76.33 75.44 77.10 710 79.38 79.66 79.49 76.36 75.60 77.49 708 79.30 79.84 79.52 76.22 75.43 77.36 706 79.42 79.74 79.54 76.43 75.45 77.42 704 79.24 79.78 79.43 76.31 75.58 77.53 702 79.29 79.59 79.44 76.47 75.62 77.33 700 79.26 79.87 79.45 76.38 75.70 77.49 698 79.45 79.75 79.61 76.48 75.58 77.61 696 79.42 79.85 79.64 76.53 75.67 77.46 694 79.32 79.89 79.56 76.26 75.51 77.37 692 79.63 79.89 79.72 76.43 75.53 77.72 690 79.53 79.83 79.66 76.47 75.58 77.66 688 79.44 79.98 79.59 76.57 75.66 77.63 686 79.58 79.88 79.70 76.52 75.65 77.36 684 79.51 79.79 79.73 76.64 75.56 77.64 682 79.47 79.76 79.48 76.47 75.48 77.38 680 79.68 79.93 79.73 76.49 75.69 77.68 678 79.64 79.86 79.63 76.41 75.69 77.53 676 79.47 79.92 79.72 76.60 75.56 77.43 674 79.41 80.08 79.66 76.41 75.74 77.63 672 79.53 80.06 79.67 76.55 75.70 77.51 670 79.74 79.96 79.68 76.67 75.91 77.43 668 79.57 79.88 79.70 76.58 75.70 77.51 666 79.44 79.79 79.77 76.55 75.77 77.57 664 79.67 79.89 79.62 76.61 75.60 77.74 662 79.48 79.85 79.64 76.53 75.79 77.64 660 79.39 80.04 79.74 76.49 75.72 77.60 658 79.70 79.85 79.76 76.64 75.84 77.77 656 79.53 80.11 79.60 76.47 75.75 77.58 654 79.43 79.97 79.65 76.50 75.63 77.60 652 79.60 79.94 79.55 76.79 75.48 77.72 650 79.55 79.95 79.69 76.58 75.62 77.70 648 79.51 80.10 79.70 76.70 75.74 77.51 646 79.47 80.02 79.63 76.57 75.70 77.58 644 79.52 79.92 79.56 76.62 75.62 77.42 642 79.46 79.89 79.64 76.55 75.71 77.51 640 79.43 80.09 79.52 76.58 75.82 77.61 638 79.41 80.03 79.61 76.63 75.60 77.59 636 79.40 79.86 79.68 76.63 75.71 77.57 634 79.60 79.84 79.56 76.63 75.55 77.57 632 79.68 79.89 79.55 76.66 75.66 77.48 630 79.48 80.15 79.44 76.68 75.63 77.54 628 79.53 79.93 79.69 76.53 75.85 77.57 626 79.45 80.02 79.52 76.56 75.60 77.48 624 79.48 79.94 79.59 76.65 75.60 77.76 622 79.38 79.93 79.58 76.39 75.58 77.49 620 79.52 80.01 79.59 76.59 75.61 77.47 618 79.51 79.68 79.66 76.52 75.69 77.43 616 79.54 80.09 79.59 76.46 75.72 77.53 614 79.48 79.88 79.50 76.60 75.49 77.59 612 79.50 79.90 79.61 76.56 75.67 77.54 610 79.36 79.99 79.67 76.68 75.58 77.66 608 79.44 79.88 79.55 76.54 75.52 77.40 606 79.50 79.84 79.53 76.57 75.58 77.49 604 79.37 80.01 79.55 76.55 75.40 77.45 602 79.37 79.99 79.57 76.58 75.46 77.45 600 79.33 79.87 79.57 76.47 75.41 77.32 598 79.43 79.89 79.36 76.47 75.47 77.37 596 79.39 79.76 79.38 76.39 75.36 77.46 594 79.47 79.87 79.51 76.37 75.30 77.42 592 79.27 79.81 79.38 76.34 75.52 77.43 590 79.33 79.74 79.63 76.37 75.26 77.35 588 79.46 79.68 79.37 76.36 75.41 77.27 586 79.29 79.64 79.46 76.27 75.43 77.34 584 79.18 79.92 79.43 76.30 75.43 77.38 582 79.44 79.65 79.30 76.26 75.33 77.40 580 79.06 79.88 79.39 76.41 75.27 77.35 578 79.41 79.69 79.40 76.38 75.35 77.23 576 79.29 79.52 79.39 76.20 75.31 77.17 574 79.16 79.73 79.09 76.24 75.23 77.11 572 79.28 79.52 79.04 76.30 75.08 77.11 570 79.10 79.55 79.14 76.16 75.24 77.03 568 79.14 79.52 79.18 76.22 75.15 77.09 566 79.21 79.49 79.26 76.09 75.19 76.98 564 78.89 79.63 79.01 76.07 74.95 76.94 562 78.87 79.38 79.13 76.08 75.14 77.13 560 79.08 79.58 78.99 76.19 74.96 76.95 558 78.91 79.43 79.08 76.02 75.04 76.98 556 78.83 79.42 78.93 76.09 75.10 77.06 554 78.95 79.33 78.90 76.09 75.12 76.83 552 78.87 79.35 78.82 75.87 75.03 76.78 550 78.78 79.38 79.04 75.86 74.91 76.80 548 78.73 79.33 78.73 75.92 74.78 76.74 546 78.78 79.26 78.81 76.12 74.92 76.68 544 78.81 79.17 78.79 75.77 74.82 76.65 542 78.75 79.19 78.72 75.89 74.74 76.73 540 78.62 79.02 78.87 75.89 74.71 76.70 538 78.49 79.31 78.73 75.72 74.46 76.61 536 78.60 79.05 78.88 75.83 74.58 76.52 534 78.60 79.02 78.69 75.80 74.60 76.52 532 78.36 79.08 78.49 75.63 74.59 76.48 530 78.40 79.18 78.34 75.63 74.50 76.46 528 78.26 78.99 78.40 75.55 74.40 76.37 526 78.44 78.95 78.36 75.54 74.41 76.40 524 78.22 79.04 78.43 75.46 74.31 76.26 522 78.47 78.77 78.25 75.37 74.40 76.25 520 78.32 78.86 78.25 75.40 74.41 76.24 518 78.25 78.52 78.17 75.52 74.11 76.24 516 78.30 78.75 78.15 75.38 74.30 76.00 514 78.05 78.68 78.22 75.31 74.18 76.16 512 78.20 78.66 78.21 75.21 74.08 76.02 510 78.20 78.49 78.24 75.23 74.03 76.08 508 77.95 78.76 77.94 75.11 73.97 76.21 506 78.12 78.65 78.00 75.04 73.98 75.90 504 78.06 78.60 78.16 75.13 73.81 75.97 502 78.08 78.44 77.84 74.92 73.74 75.59 500 77.99 78.37 77.80 74.78 73.90 75.73 498 77.87 78.41 77.88 74.83 73.79 75.72 496 77.75 78.27 77.85 74.94 73.73 75.49 494 77.57 78.37 77.80 74.94 73.59 75.64 492 77.66 78.13 77.66 74.81 73.69 75.47 490 77.80 78.05 77.48 74.69 73.50 75.48 488 77.44 78.33 77.46 74.70 73.60 75.45 486 77.35 78.05 77.51 74.77 73.53 75.55 484 77.54 78.00 77.32 74.52 73.57 75.20 482 77.67 77.85 77.44 74.54 73.42 75.34 480 77.27 77.80 77.19 74.60 73.25 75.05 478 77.45 78.09 77.31 74.60 73.24 75.21 476 77.20 77.97 77.26 74.37 73.14 75.14 474 77.04 77.95 77.24 74.55 73.20 75.03 472 77.28 77.71 77.12 74.15 73.03 75.20 470 77.25 77.97 77.01 74.17 72.90 75.14 468 77.00 77.84 77.13 73.88 72.90 74.89 466 77.07 77.35 76.99 74.16 72.96 74.84 464 76.84 77.42 76.89 74.12 72.75 74.70 462 76.94 77.41 76.98 73.88 72.87 74.56 460 76.86 77.38 76.78 73.79 72.66 74.54 458 76.92 77.54 76.74 73.81 72.90 74.50 456 76.73 77.25 76.60 74.05 72.56 74.31 454 76.79 77.36 76.74 73.82 72.38 74.42 452 76.59 77.14 76.44 73.55 72.55 74.23 450 76.43 77.18 76.73 73.72 72.42 74.61 448 76.52 77.08 76.44 73.48 72.40 74.23 446 76.65 77.11 76.31 73.67 72.38 74.17 444 76.37 77.22 76.44 73.66 72.31 74.10 442 76.30 77.03 76.31 73.71 72.10 74.19 440 76.36 76.68 76.17 73.53 72.23 74.05 438 76.12 76.49 75.87 73.48 72.01 73.92 436 76.44 76.74 75.88 73.16 72.29 73.88 434 76.29 76.47 75.84 73.10 71.66 73.97 432 76.30 76.74 75.93 73.03 71.89 73.82 430 76.47 76.54 75.88 73.34 71.55 73.67 428 75.68 76.43 75.34 73.36 71.73 73.88 426 76.25 76.46 75.88 73.07 71.62 73.48 424 75.77 76.30 75.57 72.85 71.44 73.27 422 75.33 76.01 75.75 72.94 71.07 73.49 420 75.25 76.22 75.64 72.95 71.45 73.01 418 75.73 76.40 75.16 72.49 71.50 73.19 416 75.74 76.25 75.29 72.43 71.27 73.42 414 74.89 76.28 75.02 72.63 70.94 73.42 412 75.08 75.79 74.58 72.54 71.43 73.03 410 75.10 75.86 75.48 72.28 70.93 73.09 408 75.09 76.35 74.77 72.26 71.34 73.15 406 74.67 76.14 74.66 72.61 70.70 72.84 404 74.64 76.02 74.35 72.05 70.08 72.98 402 75.25 75.44 74.15 72.36 70.91 72.43 400 74.76 75.45 74.39 72.24 70.54 72.72 398 74.71 75.50 74.84 72.05 70.49 72.82 396 74.88 75.15 74.52 72.40 70.20 72.13 394 74.83 75.29 74.62 71.82 70.86 72.61 392 74.87 75.53 74.06 72.04 70.37 72.72 390 73.90 75.93 74.62 72.35 69.86 72.28 388 74.36 75.80 74.42 71.78 70.18 72.22 386 74.20 75.17 74.37 71.39 70.02 71.94 384 73.58 74.38 74.96 71.58 69.27 72.05 382 74.35 74.30 74.13 71.46 70.99 71.87 380 73.85 74.88 74.05 71.58 69.46 72.31