CERRO TOLOLO INTER-AMERICAN OBSERVATORY INSTRUMENT SECTION FILTER TRANSMISSION SCANNER FILTER IDENTIFICATION 4700/190 DATE OF MEASUREMENT FILTER SIZE 2 CIRC. X .273 INCH. FOCAL RATIO 13.5 TEMPERATURE [C] 22 PEAK WAVELENGTH [A] 4760 PEAK TRANSMISSION [%] 69.12 CENTER WAVELENGTH [A] 4724 BANDWIDTH [A] 190 COMMENTS: 4700/190-SFI (B STROMGREEN SET #2) WAVELENGTH TRANSMISSION 4500 .290698 4502 .290276 4504 .289436 4506 .362319 4508 .361011 4510 .359971 4512 .360231 4514 .431965 4516 .431034 4518 .426439 4520 .500715 4522 .500357 4524 .571429 4526 .569395 4528 .568182 4530 .638751 4532 .638298 4534 .710732 4536 .706714 4538 .774648 4540 .775194 4542 .840925 4544 .906555 4546 .905923 4548 .974252 4550 1.03734 4552 1.0352 4554 1.17241 4556 1.16758 4558 1.23203 4560 1.36333 4562 1.4276 4564 1.55932 4566 1.62272 4568 1.75202 4570 1.81696 4572 1.9424 4574 2.14477 4576 2.27729 4578 2.27121 4580 2.59831 4582 2.76625 4584 2.99728 4586 3.32871 4588 3.52542 4590 3.81992 4592 3.98936 4594 4.41075 4596 4.89993 4598 5.20905 4600 5.76794 4602 6.27986 4604 6.87795 4606 7.52688 4608 8.20547 4610 8.50363 4612 9.48999 4614 10.2144 4616 11.2437 4618 12.2104 4620 13.2959 4622 14.6949 4624 16.7718 4626 18.0276 4628 19.5967 4630 20.7809 4632 23.0356 4634 25.9259 4636 26.6754 4638 27.7222 4640 31.4176 4642 33.2054 4644 35.7781 4646 38.4468 4648 40.625 4650 42.5865 4652 45.2397 4654 47.9221 4656 50.3588 4658 52.0305 4660 53.6036 4662 54.5627 4664 57.4468 4666 59.0153 4668 59.1772 4670 60.7346 4672 62.4761 4674 63.4591 4676 62.0126 4678 63.7755 4680 62.9747 4682 65.4557 4684 65.2038 4686 65.5215 4688 65.0284 4690 65.7053 4692 66.3534 4694 66.8329 4696 65.5044 4698 66.4165 4700 66.1432 4702 67.026 4704 66.5828 4706 67.3149 4708 65.8867 4710 67.9899 4712 67.5558 4714 68.723 4716 67.5954 4718 68.1762 4720 67.2229 4722 66.7687 4724 69.1312 4726 67.7498 4728 68.7423 4730 67.094 4732 67.5412 4734 68.2123 4736 67.071 4738 67.4306 4740 66.7883 4742 67.5444 4744 66.9104 4746 66.6263 4748 67.8593 4750 66.6061 4752 66.6062 4754 66.6062 4756 66.0822 4758 66.0617 4760 65.8816 4762 65.7592 4764 66.829 4766 66.2065 4768 65.8478 4770 65.8873 4772 65.6511 4774 65.6699 4776 65.5767 4778 65.4051 4780 65.3869 4782 64.9971 4784 65.6416 4786 65.0916 4788 65.0588 4790 64.903 4792 64.7507 4794 64.173 4796 63.8062 4798 63.5672 4800 63.1425 4802 62.5365 4804 61.6326 4806 60.6395 4808 59.7908 4810 59.083 4812 57.3001 4814 56.051 4816 54.598 4818 53.0329 4820 51.1843 4822 49.1056 4824 47.1709 4826 45.2023 4828 42.9229 4830 40.6322 4832 38.3381 4834 36.4368 4836 34.0779 4838 31.8832 4840 29.7251 4842 27.6888 4844 25.6556 4846 23.8448 4848 22.14 4850 20.6367 4852 19.3182 4854 17.8409 4856 16.5718 4858 15.2014 4860 14.3019 4862 13.0878 4864 12.0339 4866 11.0294 4868 10.3331 4870 9.49689 4872 8.63919 4874 8.06998 4876 7.38028 4878 6.75676 4880 6.17284 4882 5.77678 4884 5.39629 4886 4.99439 4888 4.65769 4890 4.31373 4892 4.04267 4894 3.81594 4896 3.51759 4898 3.29793 4900 3.12674 4902 2.83648 4904 2.72828 4906 2.50696 4908 2.38756 4910 2.17149 4912 2.05899 4914 1.94661 4916 1.8313 4918 1.72031 4920 1.60754 4922 1.55211 4924 1.43805 4926 1.33038 4928 1.32377 4930 1.21614 4932 1.15894 4934 1.10375 4936 1.04972 4938 1.04683 4940 .993926 4942 .937155 4944 .880088 4946 .823271 4948 .822819 4950 .768386 4952 .715465 4954 .714286 4956 .659341 4958 .657534 4960 .604396 4962 .657534 4964 .60241 4966 .547345 4968 .548246 4970 .548546 4972 .493151 4974 .492881 4976 .437637 4978 .437876 4980 .437876 4982 .382932 4984 .328048 4986 .382305 4988 .382514 4990 .382723 4992 .328048 4994 .328228 4996 .327332 4998 .327332 5000 .272628 5002 .272628 5004 .272183 5006 .272183 5008 .271887 5010 .272035 5012 .272035 5014 .217746 5016 .272331 5018 .217391 5020 .217391 .