Determining prism position

From SAAO TOPS Wiki
Revision as of 04:50, 28 January 2015 by Hannah (Talk | contribs) (Blue prism)

Jump to: navigation, search

The tables and plots on this page can be used to determine the prism position to use to cover a desired wavelength range. The table gives the first and last orders and the wavelength range for each prism position. There is likely an uncertainty of +/-2 orders.

Red prism

Prism position Order 1 Order 2 lambda 1 lambda 2
45000 61 111 9397 5089
45100 67 115 8555 4912
45200 70 117 8189 4828
45300 73 119 7852 4747
45400 76 121 7542 4669
45500 78 123 7349 4593
45600 80 124 7165 4556
45700 82 126 6990 4483
45800 84 127 6824 4448
45900 86 128 6665 4413
46000 87 130 6589 4345
46100 89 131 6441 4312
46200 90 132 6369 4280
46300 91 133 6299 4247
46400 92 134 6231 4216
46500 93 134 6164 4216
46600 94 135 6098 4185
46700 94 136 6098 4154
46800 95 136 6034 4154
46900 95 137 6034 4123
47000 95 137 6034 4123
47100 96 138 5971 4094
47200 96 138 5971 4094
47300 96 138 5971 4094
47400 95 138 6034 4094
47500 95 138 6034 4094
47600 92 137 6231 4123
47700 94 139 6098 4064
47800 91 137 6299 4123
47900 93 138 6164 4094
48000 92 138 6231 4094
48100 91 138 6299 4094
48200 89 137 6441 4123
48300 89 137 6441 4123
48400 87 136 6589 4154
48500 86 136 6665 4154







48600 84 136 6824 4154







48700 82 135 6990 4185







48800 81 134 7077 4216







Redlambda.png Redorders.png


Blue prism

Prism position Order 1 Order 2 Lambda 1 Lambda 2
100 105 149 5459 3791
200 107 149 5357 3791
300 108 148 5308 3817
400 110 148 5211 3817
500 111 148 5164 3817
600 112 148 5118 3817
700 113 149 5073 3791
800 114 149 5028 3791
900 115 149 4985 3791
1000 107 149 5357 3791
1100 117 149 4899 3791
1200 117 149 4899 3791
1300 117 149 4899 3791
1400 117 149 4899 3791
1500 117 149 4899 3791
1600 117 148 4899 3817
1700 117 148 4899 3817
1800 118 149 4858 3791
1900 117 148 4899 3817
2000 117 149 4899 3791
2100 116 148 4942 3817
2200 115 148 4985 3817
2300 115 148 4985 3817
2400 114 149 5028 3791
2500 113 148 5073 3817
2600 112 148 5118 3817
2700 111 148 5164 3817
2800 110 149 5211 3791
2900 109 148 5259 3817
3000 107 148 5357 3817



































Bluelambda.png Blueorders.png