NAVIGATION PLAN FOR BACKUP CLUMP LOWERING PLAN "B" 



General 



This plan provides the navigation information necessary to position a MIZAR-lowered 

 recovery clump near ALVIN if MIZAR's three-dimensional computer tracking equipment is 

 inoperative. 



Method (See figure G-4) 



1. ALUMINAUT finds ALVIN and moves bottom marker No. 1 to a position very near 

 ALVIN. ALUMINAUT departs. 



2. MIZAR plots her position using the AMF transponders on markers No. 1 and No. 2. 



3. MIZAR lowers recovery clump which has a modified EDO transponder in the line. 



4. MIZAR moves recovery clump near marker No. 1. The time difference between the 

 receipt of the 10 kHz signal from marker No. 1 and the 8 kHz from the EDO transponder is 

 used to indicate the distance of the clump from marker No. 1. 



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