A16_SMSS_72_M016936_026                                                       
                                                                              
Apollo 16 Soil Mechanics                                                      
Lunar Self-Recording Penetrometer (LSRP) Page B-12                            
                                                                              
Lunar Penetration Data Reduction Table, Index no. 11 (sixth test)             
                                                                              
This handwritten table holds the raw data read from the penetrometer          
drum and the reduced data determined from the calibration tables for the      
run designated index 11 and used to make the stress vs. penetration plot      
A16_SMSS_72_M016936_009, page A-6.  This is the first of two pages for        
this table, the second page is A16_SMSS_72_M016936_027, page B-13             
                                                                              
All 11 Apollo 16 Lunar Self-Recording Penetrometer (LSRP) runs were           
performed by lunar module pilot Charles Duke on the second EVA                
(extravehicular activity) on 22 April 1972. The final eight tests were        
done at station 10, at the ALSEP site at 8.9754 S latitude, 15.4981 E         
longitude near the landing site.  This was the final stop of the second       
EVA.  The runs at station 10 started with the fifth run overall and the       
LSRP index set to 10 (index 9 was skipped over before starting the            
station 10 runs.) All runs were done using the flight unit S/N 2004,          
lunar drum S/N 2008.  The data reduction was done at the University of        
California Soil Mechanics laboratory on 11-12 May 1972.                       
                                                                              
This run (sixth run, index 11) was done near the rover next to the index      
10 site. It was performed at 23:03:46 UT (149:09:46 Mission Elapsed           
Time, or MET) using the 1.29 square centimeter (0.2 square inch) cone.        
                                                                              
The table columns give the drum load in degrees/minutes, the drum load        
in decimal degrees, the drum circumference deflection in millimeters          
(decimal degrees multiplied by .5542), the load in Newtons (calculated        
from a calibration curve), and the stress in Newtons per square               
centimeter (load divided by the cone or plate base area).  This gives         
the value for stress used on the plot. A second set of columns starts         
with a column labelled initial drum depth/final in cm and gives a             
running total of the drum reading.  The next column, delta Drum Depth         
Reading in cm gives the difference between the current drum depth             
reading and the initial value. The next column, penetration depth in cm,      
is the drum depth reading multiplied by 31.3 from the calibration             
tables, see A16_SMSS_72_M016936_015, page B-1. This gives the value for       
penetration used on the plot.