[Code of Federal Regulations]
[Title 14, Volume 5, Parts 1200 to end]
[Revised as of January 1, 2001]
From the U.S. Government Printing Office via GPO Access
[CITE: 14CFR1215.106]

[Page 142]
 
                     TITLE 14--AERONAUTICS AND SPACE
 
                          SPACE ADMINISTRATION
 
PART 1215--TRACKING AND DATA RELAY SATELLITE SYSTEM (TDRSS)--Table of Contents
 
  Subpart 1215.1--Use and Reimbursement Policy for Non-U.S. Government 
                                  Users
 
Sec. 1215.106  User command and tracking data.

    (a) User command data may enter the TDRSS via the NASCOM interface 
at one of three locations:
    (1) For Shuttle payloads which utilize the Shuttle commanding 
system, command data must enter the system via the Johnson Space Center 
(JSC) and is governed by the policies established for STS services (see 
Sec. 1215.101).
    (2) For free flyers and other payloads, command data must enter the 
system at the Goddard Space Flight Center (GSFC) if it is to be a 
standard service.
    (3) The use of other command data entry points [e.g., the NASA 
Ground Terminal (NGT) at White Sands, NM, or Johnson Space Center (JSC), 
for payloads using an independent direct link from TDRS to the user 
payload] is considered to be a mission unique service.
    (b) NASA is required to maintain the user satellite orbital elements 
to sufficient accuracy to permit the TDRS system to establish and 
maintain acquisition. This can be accomplished in two ways:
    (1) The user can provide the orbital elements in a NASA format to 
GSFC to meet TDRSS operational requirements.
    (2) The user shall insure that a sufficient quantity of tracking 
data is received at GSFC to permit the determination of the user 
satellite orbital elements. The charges for this service will be 
determined by using the on-orbit service rates.