◆ SpookStack

There are other ways to show how the value chosen for A affects the Mode-5 impact density function For five values of A, the plots in Figure 33 show the percentages* of Atlas IIAS impacts that lie between the flight line and any radial line through the launch point that makes an angle 8 with respect to the flight line. If A = 3.0, it can be seen that approximately 46% of all Mode-5 impacts lie between 0° and 20°. If A is 4.0, the percentage of impacts between 0° and 20° increases to about 64%. 100 ..J..-.--­ ..;,,-.......r ..: ......r......... 90 :.-, 80 70 60 C - (I) e 50 (I) ,f ' ! / ! 1 !Data jfor Atl. s IIA~ a.. .... ,'.j..............,r ............. ;............;...............;.............. !...............i...............;............ 40 : / i ' : : 8 = 1 000 i 30 /J/ I ! I j i-~=1-~ , , , - - - = 2.u 20 r·•,l-r•····· ••••••••••••••••••••••••• • •••••••••••••••••••••••• -----~ =·3.()·········· / 1 : ; ; . , --- A= 4.() 10 O / 1 r I r r= 5·~ 0 0 20 40 60 80 100 120 140· 160 180 Theta (deg) Figure 33. Percentage of Impacts Between Flight Line and Any Radial ············~ ·············· l : ---: ...... -t-/. ; * The Mode-5 impact density function must be integrated numerically to arrive at the values plotted in Figure 33. Since the quantity R that appears in the density function is trajectory dependent, somewhat different curves would be obtained for other trajectories and vehicles. 9/10/96 87 RTI