IPAC 		 		INTEROFFICE MEMORANDUM

		 		February 8, 1995

 TO: 		2MASS Team

 FROM: 		T. Chester/H. McCallon

 SUBJECT: 		Current Results on 2MASS Positions and Frame-to-Frame
Offsets

• Contents
• Introduction
• PPM Analysis
• The Simulation
  • Assumptions:
  • The Algorithms:
  • Implications:
• Results
• Conclusions