Table 1. Clementine LIDAR Instrument Parameters 
  
  
Parameter Value Unit 
Laser: 
type Nd:YAG 
wavelength 1.064 mm 
energy 171 mJ 
beam divergence 500 mrad 
nominal pulse repetition rate 0.6 Hz 
Detector: 
type SiAPD 
field of view 0.057 degrees 
bandpass filter 0.4 to 1.1 mrad 
Telescope: 
type Cassegrain 
diameter 0.131 m 
focal length 0.125 m 
Receiver Electronics: 
clock counter 14 bits 
frequency response 15.0001 MHz 
return range bin 39.972 m 
maximum range 640 km 
gain 100x 
Other: 
spotsize at periselene ~200 m 
assumed lunar albedo 0.15 to 0.5 
Instrument 
mass 2.370 kg 
power 6.8 @ 1 Hz W 
  
Table 2. Comparison of Clementine Apollo Laser and Clementine LIDAR Profile Datasets 
  
  
  
  
Parameters Apollo Clementine 
Number of observations 7080 72,548 
Coverage -26° to +26° -79° to 81° 
Along-track resolution 30-43 km -20 km 
Across-track resolution NA ~60 km 
Single shot vertical resolution 2m 39.972 m 
1014 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B4. Vienna 1996