Filter identification: U Landolt Date of measurement: January 26, 2001 Filter size: 2x2" Temperature: 21.5 C Peak Wavelength: 3704.5 A Peak Transmission: 66 % Center Wavelength: 3700 A fwhm: 415 A WL (A) T (%) 3287.9 0.01461 3302.25 0.12916 3304.05 0.14352 3313 0.27229 3314.8 0.36923 3320.15 0.59377 3321.95 0.70835 3323.75 0.76703 3325.55 0.76103 3327.3 1.31777 3329.1 1.57881 3330.9 1.82819 3332.7 0.94461 3334.45 0.60423 3336.25 0.91139 3338.05 0.75997 3339.85 1.31826 3341.6 1.346 3343.4 2.03323 3345.2 1.9091 3347 2.3119 3348.75 3.14323 3350.55 2.94465 3352.35 2.92384 3354.15 3.29106 3355.9 3.96271 3357.7 3.44268 3359.5 3.91748 3361.25 4.57745 3363.05 5.38774 3364.85 5.44829 3366.6 5.07048 3368.4 4.83323 3370.2 4.66755 3371.95 4.89271 3373.75 4.67968 3375.55 5.48819 3377.3 4.51297 3379.1 4.73723 3380.9 5.03677 3382.65 5.1449 3384.45 4.80639 3386.2 5.22829 3388 7.3259 3389.8 7.87519 3391.55 7.76645 3393.35 7.32126 3395.1 6.932 3396.9 7.27971 3398.7 7.50942 3400.45 8.53461 3402.25 8.91635 3404 9.00348 3405.8 8.46855 3407.55 8.89906 3409.35 8.91884 3411.15 8.34319 3412.9 9.11474 3414.7 9.44335 3416.45 9.84106 3418.25 9.45677 3420 10.47523 3421.8 10.65777 3423.55 10.33652 3425.35 10.56761 3427.1 11.04294 3428.9 12.15968 3430.65 12.40484 3432.45 13.93661 3434.2 14.16435 3436 14.85135 3437.75 15.16577 3439.55 15.78765 3441.3 16.42223 3443.1 16.16445 3444.85 16.94726 3446.65 17.227 3448.4 18.43384 3450.15 19.05661 3451.95 19.8149 3453.7 19.5391 3455.5 19.81384 3457.25 20.09194 3459.05 20.39681 3460.8 21.90929 3462.55 22.78452 3464.35 23.12455 3466.1 24.26687 3467.9 24.96 3469.65 25.0191 3471.4 25.58074 3473.2 25.83413 3474.95 26.26426 3476.7 27.46623 3478.5 28.72639 3480.25 29.49471 3482.05 29.63765 3483.8 29.72623 3485.55 29.95574 3487.35 30.53252 3489.1 31.33406 3490.85 31.96642 3492.65 32.33155 3494.4 33.19145 3496.15 33.21568 3497.9 33.40629 3499.7 33.31432 3501.45 34.22406 3503.2 35.02219 3505 35.57794 3506.75 35.94042 3508.5 37.15326 3510.25 37.58906 3512.05 38.30316 3513.8 38.84932 3515.55 39.13371 3517.35 39.27484 3519.1 40.52816 3520.85 40.73761 3522.6 40.96326 3524.35 41.67029 3526.15 42.0491 3527.9 42.83719 3529.65 43.33903 3531.4 43.49648 3533.2 43.65839 3534.95 44.05945 3536.7 44.77842 3538.45 45.49852 3540.2 45.789 3542 46.17694 3543.75 46.41294 3545.5 46.52406 3547.25 46.54955 3549 47.03087 3550.75 47.82055 3552.55 48.45619 3554.3 49.1119 3556.05 49.269 3557.8 49.50319 3559.55 49.97184 3561.3 50.56487 3563.05 50.85952 3564.8 51.11287 3566.6 51.08116 3568.35 51.31503 3570.1 52.02806 3571.85 52.27897 3573.6 52.20374 3575.35 52.66458 3577.1 53.05145 3578.85 53.29706 3580.6 53.46123 3582.35 53.78629 3584.1 53.96394 3585.9 54.65765 3587.65 55.10871 3589.4 55.8669 3591.15 56.11987 3592.9 56.17019 3594.65 56.69355 3596.4 57.004 3598.15 57.34871 3599.9 57.64465 3601.65 58.55668 3603.4 58.61616 3605.15 58.79606 3606.9 59.0069 3608.65 59.41865 3610.4 59.68497 3612.15 59.88281 3613.9 60.10787 3615.65 60.1951 3617.4 60.26232 3619.15 60.5549 3620.9 61.07781 3622.65 61.40181 3624.4 61.52568 3626.1 61.72548 3627.85 62.11329 3629.6 62.23568 3631.35 62.31942 3633.1 62.287 3634.85 62.42129 3636.6 62.75752 3638.35 62.81506 3640.1 62.99413 3641.85 62.8991 3643.6 62.95845 3645.35 63.17926 3647.05 63.30861 3648.8 63.26287 3650.55 63.27061 3652.3 63.48981 3654.05 63.71468 3655.8 63.90358 3657.55 64.16345 3659.25 64.26723 3661 64.41235 3662.75 64.31261 3664.5 64.36216 3666.25 64.40565 3668 64.4879 3669.7 64.61332 3671.45 64.83419 3673.2 64.8031 3674.95 64.88039 3676.7 64.8471 3678.4 64.84142 3680.15 64.94945 3681.9 64.936 3683.65 65.13013 3685.4 65.31148 3687.1 65.52858 3688.85 65.6071 3690.6 65.60897 3692.35 65.72052 3694.05 65.68984 3695.8 65.85445 3697.55 65.80158 3699.3 65.63658 3701 65.69639 3702.75 65.78171 3704.5 65.90674 3706.2 65.85058 3707.95 65.76316 3709.7 65.59203 3711.45 65.51461 3713.15 65.39965 3714.9 65.34271 3716.65 65.40832 3718.35 65.48271 3720.1 65.37371 3721.85 65.28348 3723.55 65.28784 3725.3 65.19568 3727.05 65.19723 3728.75 65.22571 3730.5 65.07771 3732.25 65.00458 3733.95 64.88481 3735.7 64.79668 3737.4 64.65694 3739.15 64.59916 3740.9 64.54387 3742.6 64.55194 3744.35 64.42439 3746.05 64.29168 3747.8 64.29265 3749.55 64.21 3751.25 64.02826 3753 63.97384 3754.7 63.89355 3756.45 63.73574 3758.2 63.62384 3759.9 63.50568 3761.65 63.23161 3763.35 63.06287 3765.1 62.9129 3766.8 62.8061 3768.55 62.62774 3770.25 62.49613 3772 62.17426 3773.7 62.12068 3775.45 61.94977 3777.15 61.72397 3778.9 61.51165 3780.6 61.35474 3782.35 61.13035 3784.05 60.94068 3785.8 60.77674 3787.5 60.57687 3789.25 60.36026 3790.95 60.11926 3792.7 59.82597 3794.4 59.5221 3796.15 59.20052 3797.85 58.90429 3799.55 58.67726 3801.3 58.38819 3803 58.10487 3804.75 57.87529 3806.45 57.62187 3808.2 57.30603 3809.9 57.06742 3811.6 56.72942 3813.35 56.45016 3815.05 56.24616 3816.8 55.94058 3818.5 55.62084 3820.2 55.31352 3821.95 54.95777 3823.65 54.64074 3825.35 54.38739 3827.1 54.01894 3828.8 53.60071 3830.55 53.27303 3832.25 52.92661 3833.95 52.48113 3835.7 52.10039 3837.4 51.75545 3839.1 51.32432 3840.85 50.91235 3842.55 50.50171 3844.25 50.14697 3845.95 49.74765 3847.7 49.36132 3849.4 48.96016 3851.1 48.53145 3852.85 48.11461 3854.55 47.68181 3856.25 47.27252 3857.95 46.83739 3859.7 46.37903 3861.4 45.91306 3863.1 45.43671 3864.8 44.9551 3866.55 44.4351 3868.25 43.99058 3869.95 43.5379 3871.65 43.10584 3873.4 42.61926 3875.1 42.17774 3876.8 41.66274 3878.5 41.18784 3880.2 40.68329 3881.95 40.2521 3883.65 39.73858 3885.35 39.25548 3887.05 38.83184 3888.75 38.32119 3890.5 37.82784 3892.2 37.33555 3893.9 36.83132 3895.6 36.32968 3897.3 35.82697 3899 35.32842 3900.7 34.83642 3902.45 34.34113 3904.15 33.86984 3905.85 33.35432 3907.55 32.82935 3909.25 32.29529 3910.95 31.79868 3912.65 31.29787 3914.35 30.78865 3916.05 30.29497 3917.8 29.82419 3919.5 29.3269 3921.2 28.818 3922.9 28.2979 3924.6 27.77006 3926.3 27.28155 3928 26.751 3929.7 26.27923 3931.4 25.75194 3933.1 25.28655 3934.8 24.80681 3936.5 24.31558 3938.2 23.81632 3939.9 23.30823 3941.6 22.81426 3943.3 22.33506 3945 21.85832 3946.7 21.387 3948.4 20.93942 3950.1 20.448 3951.8 20.01513 3953.5 19.56126 3955.2 19.11397 3956.9 18.64665 3958.6 18.18148 3960.3 17.76132 3962 17.36694 3963.7 16.94394 3965.4 16.52132 3967.1 16.14684 3968.8 15.75087 3970.5 15.3479 3972.2 14.97165 3973.9 14.55784 3975.55 14.19452 3977.25 13.81271 3978.95 13.44581 3980.65 13.09148 3982.35 12.73855 3984.05 12.38423 3985.75 12.01745 3987.45 11.67616 3989.15 11.34529 3990.8 11.00971 3992.5 10.68758 3994.2 10.37539 3995.9 10.05965 3997.6 9.79881 3999.3 9.52806 4001 9.21339 4002.65 8.96103 4004.35 8.67861 4006.05 8.41971 4007.75 8.15103 4009.45 7.91655 4011.1 7.66626 4012.8 7.39445 4014.5 7.15077 4016.2 6.91345 4017.9 6.69374 4019.55 6.44135 4021.25 6.21555 4022.95 5.99632 4024.65 5.78184 4026.3 5.60403 4028 5.39103 4029.7 5.21884 4031.4 5.04403 4033.05 4.87771 4034.75 4.69268 4036.45 4.51758 4038.15 4.35555 4039.8 4.19165 4041.5 4.03097 4043.2 3.89842 4044.85 3.75116 4046.55 3.59981 4048.25 3.4681 4049.95 3.29732 4051.6 3.14955 4053.3 3.01819 4055 2.87413 4056.65 2.76723 4058.35 2.65294 4060.05 2.54961 4061.7 2.42655 4063.4 2.32452 4065.1 2.24513 4066.75 2.13252 4068.45 2.03026 4070.1 1.94219 4071.8 1.86997 4073.5 1.78697 4075.15 1.71142 4076.85 1.62439 4078.5 1.55968 4080.2 1.48006 4081.9 1.41174 4083.55 1.33361 4085.25 1.25671 4086.9 1.19713 4088.6 1.13197 4090.25 1.06816 4091.95 1.02119 4093.65 0.96748 4095.3 0.90597 4097 0.85726 4098.65 0.80652 4100.35 0.76139 4102 0.73932 4103.7 0.70923 4105.35 0.68223 4107.05 0.65681 4108.7 0.61797 4110.4 0.57145 4112.05 0.53874 4113.75 0.51942 4115.4 0.4919 4117.1 0.468 4118.75 0.43984 4120.45 0.42632 4122.1 0.41455 4123.8 0.39671 4125.45 0.36806 4127.15 0.3419 4128.8 0.34048 4130.45 0.321 4132.15 0.31594 4133.8 0.29465 4135.5 0.29477 4137.15 0.29281 4138.85 0.28461 4140.5 0.28945 4142.15 0.2779 4143.85 0.25455 4145.5 0.24726 4147.15 0.25429 4148.85 0.24732 4150.5 0.25923 4152.2 0.25387 4153.85 0.2149 4155.5 0.20035 4157.2 0.19832 4158.85 0.19484 4160.5 0.177 4162.2 0.17913 4163.85 0.16468 4165.5 0.1601 4167.2 0.13752 4168.85 0.13019 4170.5 0.13426 4172.2 0.12529 4173.85 0.11284 4175.5 0.09623 4177.2 0.10526 4178.85 0.10287 4180.5 0.09761 4182.15 0.07548 4183.85 0.07232