Table 1-7.—C–Element Orbital Data Message
any "hits" on the signal during transmission may be
REVIEW QUESTIONS
detected and corrected by the user. Because of this
Q42.
What is the purpose of ephemeris data?
format, the message is sometimes called "3-line Charlie
data." The periods separate individual data elements,
and in most cases, indicate a decimal point.
Be aware that the NAVSPASUR-assigned
identification numbers do not correspond to either U.S.
satellite numbers or to the international satellite
identification. The Satellite Equator Crossings
Q43.
What are the most common methods of
obtaining TBUS data?
message provides both NAVSPASURCEN's satellite
number and the satellite name, such as 21263, NOAA
Q44.
What information is contained in Part I of the
TBUS message?
Q45.
What general information is contained in Part
IV of a TBUS message?
12.
Q46.
What is the second element of a NASA Two-line
message?
Table 1-8—Format of C-Element Data
1-36
