What does SPARS stand for?

Semper Paratus - US Coast Guard Women's Auxiliary; name taken from Coast Guard motto

Site Production and Reduction System

Society of Professional Audio Recording Services (EA)

Society of Professional Audio Recording Studios (SAUS)

Spacecraft Precision Attitude Reference System - NASA

Space Precision Altitude - or Attitude Reference System

Space Prediction Attitude Reference System (SAUS)

System for Prediction of Acoustic Response of Sensors

Women's Coast Guard Reserves - From Coast Guard motto "Semper Paratus-Always Ready" (EBF)